Yaesu Musen 20223X20 SCANNING RECEIVER User Manual users manual

Yaesu Musen Co., Ltd. SCANNING RECEIVER users manual

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FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 1/64 Vertex Standard Co., Ltd. General Description The VX-120/170 is a small size FM hand-held providing up to five watts of RF power and wealth of convenient features for 2m amateur band. New and exciting features of the VX-120/170 are the Emergency Automatic ID (EAI) function, that will automatically cause your VX-120/170 to transmit your callsign and engage your rig’s microphone, even if you are disabled and unable to press the PTT switch; Enhanced Paging and Code Squelch (EPCS), that allows you to page a particular station and only receive calls from that station, if desired; and a security Password feature, that will allow you to turn on and operate your transceiver only after you enter your Password. Additional features include a convenient access key for Vertex Standard’s WIRES™ (Wide-coverage Internet Repeater Enhancement System), a transmit Time-Out Timer (TOT), Automatic Power-Off (APO), Automatic Repeater Shift (ARS), Vertex Standard’s exclusive ARTS™ (Auto-Range Transponder System) which “beeps” the user when you move out of communications range with another ARTSTM equipped station, plus provision for reduction of the TX deviation in areas of high channel congestion. And an RF squelch circuit allows the owner to set the squelch to open at a programmable setting of the S-Meter, thus reducing guesswork in setting the squelch threshold. We appreciate your purchase of the VX-120/170, and encourage you to read this manual thoroughly, so as to learn about the many exciting features of your exciting new Vertex Standard hand-held transceiver! Accessories & Options Supplied Accessories  FNB-83 7.2 V, 1,400 mAh Rechargeable Nickel-Metal Hydride Battery Pack  NC-88B/C/U* Overnight Battery Charger (10-Hour)  Belt Clip  Antenna  Operating Manual  Warranty Card Available Options  FNB-83 7.2 V, 1,400 mAh Rechargeable Nickel-Metal Hydride Battery Pack  NC-88B/C/U* Overnight Battery Charger (10-Hour)

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 2/64 Vertex Standard Co., Ltd.  VAC-370 Desktop Rapid Charger  CD-26 Charger Cradle  FBA-25A Dry Cell Battery Case for  CN-3 BNC-to-SMA Adapter  CT-32 Cloning Cable  CT-91 Microphone Adapter  E-DC-5B DC Cable with Cigarette-Lighter Adapter  E-DC-6 DC Cable; plug and wire only  MH-57A4B Speaker/Microphone  VC-27 Ear piece/Microphone  VC-24 VOX Headset * “B” suffix is for use with 100-120 VAC, “C” suffix is for use with 230-240 VAC, and “U” suffix is for use with 230 VAC. Availability of accessories may vary. Some accessories are supplied as standard per local requirements, while others may be unavailable in some regions. This product is designed to perform optimally when used with genuine Vertex Standard accessories. Vertex Standard shall not be liable for any damage to this product and/or accidents such as fire, leakage or explosion of a battery pack, etc., caused by the malfunction of non- Vertex Standard accessories. Consult your Vertex Standard dealer for details regarding these and any newly-available options. Connection of any non-Vertex Standard-approved accessory, should it cause damage, may void the Limited Warranty on this apparatus. Control & Connections Top & Front Panel (1) ANTENNA Jack Connect the supplied rubber flex antenna (or another antenna presenting a 50-Ohm impedance) here. (2) MIC/SP Jack This four-conductor miniature jack provides connection points for microphone audio, earphone audio, PTT, and ground. Do not allow the VX-120/170 to become submerged in water while the plastic cover over the MIC/SP jack is removed.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 3/64 Vertex Standard Co., Ltd. (3) VOL/PWR Knob Turn this control clockwise to turn the radio on and to increase the volume. Counter-clockwise rotation into the click-stop will turn the radio off. (4) DIAL Knob This (inner) 20-position detented rotary switch is used for setting the operating frequency, and also is used for menu selections and other adjustments. (5) Speaker The internal speaker is located here. (6) LCD (Liquid Crystal Display) The display shows the current operating condition, as described on the next page. (7) Keypad These 16 keys select many of most important operating features on the VX-120/170. The functions of the keys are described in detail on the pages to follow. (8) TX/BUSY Indicator Lamp This indicator glows green when the squelch opens, and turns red during transmit. (9) MIC The internal microphone is located here. Side Panel (1) PTT (Push To Talk) Switch Press this switch to transmit, and release it (to receive) after your transmission is completed. (2) MONI Switch Pressing this switch disables the noise squelching action, allowing you to hear very weak signals near the background noise level temporarily. Press the [F/W] key on the keypad first, then press this switch to enable to adjustment of the squelch threshold level. (3) EXT DC Jack This coaxial DC jack allows connection to an external DC power source (6-16V DC). The center pin of this jack is the Positive (+) connection. Do not allow the VX-120/170 to become submerged in water while the rubber cap over the EXT DC jack is removed.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 4/64 Vertex Standard Co., Ltd. Keypad Functions (VX-120) Key Primary Function (Press Key) Secondary Function (Press [F/W] Key +) Third Function (Press and Hold Key)[WX(∞/EMG)] Recalls the “Weather” broadcast channel bank. Activates the Internet Connection feature. Activates the EMERGENCY function. [LOW(SET/LOCK)] Selects the desired transmit power output level. Engages the Set (Menu) Mode. Activates the Key Lockout feature. [▲(MHz)] Increases the VFO frequency by one step or moves the memory channel to the next-highest channel. Tunes the VFO frequency upward in 1 MHz steps. Starts the scanner upward (toward a higher frequency or a higher channel number). [▼(MHz)] Decreases the VFO frequency by one step or moves the memory channel to the next-lowest channel. Tunes the VFO frequency downward in 1 MHz steps. Starts the scanner downward (toward a lower frequency or a lower channel number). [REV(HOME] *2 Reverses the transmit and receive frequencies while working through a repeater. Switches to the “Home” (favorite frequency) Channel.None [MR(SKIP)] Set the frequency control to the Memory Recall mode. Activates the “Memory “Tune” mode while in the Memory Recall mode.Selects the Memory Scan “Skip” channel-selection mode. None [VFO(PRI)] Set the frequency control to the VFO mode. Select the VFO between “VFO A” and “VFO B” while in the VFO mode. Activates the Priority (Dual Watch) function. Starts the programmed VFO scanner upward while in the VFO mode. Select the Memory Bank while in the Memory Recall mode.[F/W] Activates the “Alternate” key function. Disables the “Alternate” key function. Activates the “Memory Write” mode (for memory channel storage).

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 5/64 Vertex Standard Co., Ltd. Keypad Functions (VX-170) Key Primary Function (Press Key) Secondary Function (Press [F/W] Key +) Third Function (Press and Hold Key)[1(SQ TYP)] Frequency entry digit “1.” Activates the CTCSS or DCS Operation. Recalls the “Weather” broadcast channel bank. [2(CODE)] Frequency entry digit “2.” Selects the CTCSS tone or DCS code number. Activates the ARTS feature. [3(LOW)] Frequency entry digit “3.” Selects the desired transmit power output level. Activates the Smart Search feature. [▲(MHz)] Increases the VFO frequency by one step or moves the memory channel to the next-highest channel. Tunes the VFO frequency upward in 1 MHz steps. Starts the scanner upward (toward a higher frequency or a higher channel number). [4(RPT)] Frequency entry digit “4.” Selects the direction of the uplink frequency shift (either “-,” “+,” or “simplex”) during repeater operation. Activates the EMERGENCY function. [5(BELL)] Frequency entry digit “5.” Selects the CTCSS/DCS Bell ringer repetitions. None [6(LOCK)] Frequency entry digit “6.” Activates the Key Lockout feature. Activates the Key Lockout feature. [▼(MHz)] Decreases the VFO frequency by one step or moves the memory channel to the next-lowest channel. Tunes the VFO frequency downward in 1 MHz steps. Starts the scanner downward (toward a lower frequency or a lower channel number). [7(P1)]*1 Frequency entry digit “7.” Select the RF Squelch threshold level. None [8(P2)]*1 Frequency entry digit “8.” None [9(DTMF)] Frequency entry digit “9.” Selects the DTMF mode. None [REV(HOME] *2 Reverses the transmit and receive frequencies while working through a Switches to the “Home” (favorite frequency) Channel.None

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 6/64 Vertex Standard Co., Ltd. repeater. [MR(SKIP)] Set the frequency control to the Memory Recall mode. Activates the “Memory “Tune” mode while in the Memory Recall mode.Selects the Memory Scan “Skip” channel-selection mode. [V/M(PRI)] Set the frequency control to the VFO mode. Select the VFO between “VFO A” and “VFO B” while in the VFO mode. Activates the Priority (Dual Watch) function. Starts the programmed VFO scanner upward while in the VFO mode. Select the Memory Bank while in the Memory Recall mode.[0(SET)%] Activates the Internet Connection feature. Frequency entry digit “0.” Engages the Set (Menu) Mode. Enables Internet access code selection. [VFO(PRI)] Set the frequency control to the VFO mode. Select the VFO between “VFO A” and “VFO B” while in the VFO mode. Activates the Priority (Dual Watch) function. Starts the programmed VFO scanner upward while in the VFO mode. Select the Memory Bank while in the Memory Recall mode.[F/W] Activates the “Alternate” key function. Disables the “Alternate” key function. Activates the “Memory Write” mode (for memory channel storage). *1: You can program the secondary (press [F/W] key +) function of the key to another function, if desired. See page 57 for details. *2: You can exchange the function between primary (press key) function and secondary (press [F/W] key +) function, if desired. See page 74 for details. Installation of Accessories Antenna Installation The supplied antenna provides good results over the entire frequency range of the transceiver. However, for enhanced reception on certain non-Amateur frequencies, you may wish to connect an antenna designed specifically for that frequency range, as the supplied antenna is necessarily a compromise outside the Amateur bands, and cannot be expected to provide high performance at all frequencies. To install the supplied antenna, hold the bottom end of the antenna, then screw it onto the mating connector on the transceiver until it is snug. Do not over-tighten by use of extreme

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 7/64 Vertex Standard Co., Ltd. force. Notes:  Never transmit without having an antenna connected.  When installing the supplied antenna, never hold the upper part of the antenna while screwing it onto the mating connector on the transceiver.  If using an external antenna for transmission, ensure that the SWR presented to the transceiver is 1.5:1 or lower, to avoid excessive feedline loss. Installation of FNB-83 Battery Pack The FNB-83 is a high-performance Ni-MH battery providing high capacity in a compact package. Under normal use, the FNB-83 may be used for approximately 300 charge cycles, after which operating time may be expected to decrease. If you have an old battery pack which is displaying capacity which has become diminished, you should replace the pack with a new one. Installation of the battery is easy and quick:  Insert the battery pack into the battery compartment on the back of the radio while tilting the Belt Clip outward, then close the Battery Pack Latch until it locks in place with a “Click.”  To remove the battery, turn the radio off and remove any protective cases. Open the Battery Pack Latch on the bottom of the radio, then slide the battery downward and out from the radio while tilting the Belt Clip out of the way. Battery Charging If the battery has never been used, or its charge is depleted, it may be charged by connecting the NC-88 Overnight Battery Charger, as shown in the illustration, to the EXT DC jack. If only 12 ~ 16 Volt DC power is available, the optional E-DC-5B DC Adapter (with its cigarette lighter plug) may also be used for charging the battery. A fully-discharged pack will be charged completely in 10 hours. Disconnect the NC-88 from the EXT DC jack and the AC line outlet. Important Note  The NC-88 is not designed to power the transceiver for operation (reception or transmission).  Do not leave the NC-88 connected to the transceiver for continuous periods in excess of 24 hours. Long term overcharging can degrade the Ni-MH battery pack and significantly shorten its useful life.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 8/64 Vertex Standard Co., Ltd.  Please be advised that the NC-88 may contribute noise to TV and radio reception in the immediate vicinity, so we do not recommend its use adjacent to such devices. Low Battery Indication  As your battery discharges during use, the voltage will gradually become lower. When the battery voltage is becoming too low for reliable operation, the “BATTERY” icon will blink on the LCD display, indicating that the battery pack must be recharged before further use.  Avoid recharging Ni-MH batteries before the “Low Battery” indicator is observed, as this can degrade the charge capacity of your Ni-MH battery pack. Installation of FBA-25A Alkaline Battery Case (option) The optional FBA-25A Battery Case allows operation of the VX-120/170 using six “AA” size Alkaline batteries. When installing batteries, insert the (–) end first, then press in the (+) end so the battery snaps into place. Always replace all six batteries at the same time, paying attention to the polarity indicated inside the case. The FBA-25A must not be used with rechargeable cells. The FBA-25A does not contain the thermal and over-current protection circuits (provided in the “FNB” series of Ni-MH Battery Packs) required when utilizing Ni-Cd and Ni-MH cells. Note that the power output and battery life will be much shorter when using Alkaline AA cells. They should be considered an emergency backup power source only, for this reason. Interface of Packet TNCs The VX-120/170 may be used for Packet operation, using the optional CT-44 microphone adapter (available from your Yaesu dealer) for easy interconnection to commonly-available connectors wired to your TNC. You may also build your own cable, using a four-conductor miniature phone plug, per the diagram below. The audio level from the receiver to the TNC may be adjusted by using the VOLUME knob, as with voice operation. The input level to the VX-120/170 from the TNC should be adjusted at the TNC side; the optimum input voltage is approximately 5 mV at 2000 Ohms. Be sure to turn the transceiver and TNC off before connecting the cables, so as to prevent voltage spikes from possibly damaging your transceiver. When you are operating on Packet, switch the Receive Battery Saver OFF, as the “sleep” cycle may “collide” with the beginning of an incoming Packet transmission, causing your TNC not to receive the full data burst. See page 59 for details regarding Battery Saver setup.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 9/64 Vertex Standard Co., Ltd. Operation R. F. says: Hi! I’m R. F. Radio, and I’ll be helping you along as you learn the many features of the VX-120/170. I know you’re anxious to get on the air, but I encourage you to read the “Operation” section of this manual as thoroughly as possible, so you’ll get the most out of this fantastic new transceiver. Now. . .let’s get operating! Switching Power On and Off  Be sure the Battery Pack is installed, and that the battery is fully charged. Connect the antenna to the top panel ANTENNA jack.  Rotate the top panel’s VOL/PWR knob out of the click-stop to turn on the radio. The current DC supply voltage will be indicated on the display for 2 seconds. After this 2 second interval, the display will resume its normal indication of the operating frequency.  To turn the radio off, turn the VOL/PWR knob fully counter-clockwise into the click stop position. Adjusting the Audio Volume Level and Squelch Setting  At first, set the SQL knob fully counter-clockwise. Now, you may rotate the VOL/PWR knob to adjust the receiver level for a comfortable listing level, using the background noise as a reference.  To set the squelch, turn the SQL knob clockwise, slightly past the point where the background noise is muted. This is the point of best sensitivity to weak signals, and we recommend that you not rotate the SQL knob very much past the point where the background noise is just silenced. R.F. Says: 1) A special “RF Squelch” feature is provided on this radio. This feature allows you to set the squelch so that only signals exceeding a certain S-meter level will open the squelch. See page ?? for details. 2) If you’re operating in an area of high RF pollution, you may need to consider “Tone Squelch” operation using the built-in CTCSS Decoder. This feature will keep your radio quiet until a call is received from a station sending a carrier which contains a matching (subaudible) CTCSS tone. Or, if your friends have radios equipped with DCS (Digital Coded Squelch) like your VX-120/170 has, try using that mode for silent monitoring of busy channels. Frequency Navigation The VX-120/170 will initially be operating in the “VFO” mode, a channelized system which

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 10/64 Vertex Standard Co., Ltd. allows free tuning throughout the currently-selected operating band. Three basic frequency navigation methods are available on the VX-120/170: 1) Tuning Dial Rotation of the DIAL allows tuning in the pre-programmed steps established for the current operating band. Clockwise rotation of the DIAL causes the VX-120/170 to be tuned toward a higher frequency, while counter-clockwise rotation will lower the operating frequency. If you press the [F/W] key momentarily, then rotate the DIAL, frequency steps of 1 MHz will be selected. This feature is extremely useful for making rapid frequency excursions over the wide tuning range of the VX-120/170. 2) Direct Keypad Frequency Entry (VX-170 only) The desired operating frequency may be entered directly from the keypad. To enter a frequency directly, just keying in the 10 MHz, 1 MHz, and the kHz digits. Examples: To enter 146.560 MHz, press [4]  [6]  [5]  [6]  [0] To enter 146.5625 MHz (12.5 kHz steps), [4]  [6]  [5]  [6]  [2] 3) Scanning Press and hold in either the [▲] or [▼] key for one second to initiate upward or downward scanning, respectively (Manual VFO Scan). For scanning within a limited sub-band range, from the VFO mode, press and hold in the [MR(SKIP)] key for one second to begin scanning toward a higher frequency within the previously-defined sub-band (Programmed VFO Scan). Details regarding sub-band setup may be found on page ??. If you wish to reverse the direction of the scan (i.e. toward a lower frequency, instead of a higher frequency), just rotate the DIAL one click in the counter-clockwise direction while the VX-120/170 is scanning. The scanning direction will be reversed. To revert to scanning toward a higher frequency once more, rotate the DIAL one click clockwise. The scanner will stop when it receives a signal strong enough to break through the Squelch threshold. The VX-120/170 will then hold on that frequency according to the setting of the “RESUME” mode (Set Mode Item 32: RESUME). Press the PTT switch momentarily to cancel the scanning. This only stops the scan; it does not cause transmission to occur. See page // for details regarding Scan Operation. Transmission Once you have set up an appropriate frequency inside the 144 MHz Amateur band on which

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 11/64 Vertex Standard Co., Ltd. the VX-120/170 can transmit, you’re ready to go on the air! These are the most basic steps; more advanced aspects of transmitter operation will be discussed later.  To transmit, press the PTT switch, and speak into the front panel microphone (located in the lower left-hand corner of the speaker grille) in a normal voice level. The TX/BUSY indicator will glow red during transmission.  To return to the receive mode, release the PTT switch.  During transmission, the relative power level will be indicated on the bar graph at the bottom of the LCD; full scale deflection confirms “High Power” operation, while deflection of two bars indicates “Low Power” operation. Five bars indicates “Medium Power” operation. Additionally, the “LOW” icon will appear at the bottom of the display while operating on the “Low Power” and “Medium Power” settings. R.F. Says: 1) If you’re just talking to friends in the immediate area, you’ll get much longer battery life by switching to Low Power operation, described in the next chapter. And don’t forget: always have an antenna connected when you transmit. 2) Transmission is possible only on the 144 MHz amateur band. Changing the Transmitter Power Level To change the power level:  Press the [F/W] key, then press the [3(LOW)](VX-170) or [LOW(SET/LOCK)](VX-120) key. The LCD shows the current power output level.  Rotate the DIAL knob to select the desired power output level. Available selections are “HIGH” (5 W), “MID” (2 W), and “LOW” (0.5 W).  When you have made your choice, press the PTT switch to save the new setting and return to normal operation. R.F. Says: 1) The VX-120/170 is smart! When you store memories, you can store the power output settings separately in each memory, so you don’t waste battery power when using very close-in repeaters! 2) When you are operating on the “Low” or “Medium” power setting, you can press the [F/W] key, when press the PTT switch, to cause the VX-120/170 to transmit (temporarily) on High power. After one transmission, the power level will revert to the previously-selected (“Low” or “Medium” power) setting. Advanced Operation Now that you’re mastered the basics of VX-120/170 operation, let’s learn more about some of the really neat features.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 12/64 Vertex Standard Co., Ltd. Keyboard Locking In order to prevent accidental frequency change or inadvertent transmission, various aspects of the VX-120/170’s DIAL and keypad may be locked out. The possible lockout combinations are: LK KEY: Just the front panel keypad is locked out LKDIAL: Just the top panel DIAL is locked out LK K+D: Both the keypad and DIAL are locked out (factory default) LK PTT: The PTT switch is locked out (TX not possible) LK P+K: Both the PTT switch and keypad are locked out LK P+D: Both the PTT switch and DIAL are locked out LK ALL: All of the above are locked out To lock out some or all of the keys: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 26: LOCK. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to choose between one of the locking schemes as outlined above. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. To activate the locking feature, (1) press and hold in the [6(LOCK)] key for one second, or (2) press the [F/W] key, followed by the [6(LOCK)] key. The “Key Lock” icon will appear on the LCD. To cancel locking, repeat one of these process. Keypad/LCD Illumination Your VX-120/170 includes a reddish illumination lamp which aids in nighttime operation. The reddish illumination yields clear viewing of the display in a dark environment, with minimal degradation of your night vision. Three options for activating the lamp are provided: KEY Mode: Illuminates the Keypad/LCD lamp for five seconds when you rotate the DIAL knob or press the keypad or any switch (except PTT switch). This is the factory-programmed default setting. CONT Mode: Illuminates the Keypad/LCD lamp continuously. OFF Mode: Disables the Keypad/LCD lamp. Here is the procedure for setting up the Lamp operating mode: 1. Press the [F/W] key, then press the [(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 25: LAMP.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 13/64 Vertex Standard Co., Ltd. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select one of the three modes described above. 5. When you have made your choice, press the PTT switch to save the new setting and return to normal operation. Disabling the Keypad Beeper A keypad beeper provides useful audible feed back whenever a keypad is pressed. If you want to turn the beep off: 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 6: BEEP. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to change the setting to “OFF.” 5. Press the PTT switch to save the new setting and return to normal operation. 6. To turn the beep back on again, select “KEY” or “KEY+SC (factory default)” in step 4 above. KEY: The beeper sounds when you press the keypad. KEY+SC: The beeper sounds when you press the keypad, or when the scanner stops. RF Squelch A special RF Squelch feature is provided on this radio. This feature allows you to set the squelch so that only signals exceeding a certain S-meter level will open the squelch. To set up the RF squelch circuit for operation, use the following procedure: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 34: RF SQL. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select the desired signal strength level for the squelch threshold (S-1, S-2, S-3, S-4, S-5, S-6, S-8, S-FULL, or OFF). 5. Press the PTT switch to save the new setting and return to normal operation. Checking the Battery Voltage The VX-120/170’s microprocessor includes programming which will measure the current battery voltage. 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 12: DC VLT. 3. Press the [F/W] key momentarily to display the current DC voltage being supplied. 4. Press the [F/W] key, followed by the PTT switch to return to normal operation.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 14/64 Vertex Standard Co., Ltd. Repeater Operation Repeater stations, usually located on mountaintops or other high locations, provide a dramatic extension of the communication range for low-powered hand-held or mobile transceivers. The VX-120/170 includes a number of features which make repeater operation simple and enjoyable. Repeater Shifts The VX-120/170 has been configured, at the factory, for the repeater shift set to 600 kHz. Depending on the part of the band in which you are operating, the repeater shift may be either downward (–) or upward (+), and one of these icons will appear at the top of the LCD when repeater shifts have been enabled. Automatic Repeater Shift (ARS) The VX-120/170 provides a convenient Automatic Repeater Shift feature, which causes the appropriate repeater shift to be applied automatically whenever you tune into the designated repeater sub-bands in your country. These sub-bands are shown below. If the ARS feature does not appear to be working, you may have accidentally disabled it. To re-enable ARS: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 4: ARS. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select “ARS. ON.” 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. Manual Repeater Shift Activation If the ARS feature has been disabled, or if you need to set a repeater shift direction other than that established by the ARS, you may set the direction of the repeater shift manually. To do this: 1. Press the [F/W] key, then press the [(4)RPT] key to enable selection of the repeater shift direction. 2. This provides a “short-cut” to Set Mode Item 35: RPT.MOD. 3. Rotate the DIAL knob to select the desired shift among “RPT.–,” “RPT.+,” and “RPT.OFF.”

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 15/64 Vertex Standard Co., Ltd. 4. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. R. F. Says: If you make a change in the shift direction, but still have Automatic Repeater Shift still engaged (see previous section), when you change frequency (by rotating the DIAL knob, for example) the ARS will over-ride your manual setting of the shift direction. Turn ARS off if you do not wish this to happen. Changing the Default Repeater Shifts If you travel to a different region, you may need to change the default repeater shift so as to ensure compatibility with local operating requirements. To do this, follow the procedure below: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 41: SHIFT. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select the new repeater shift magnitude. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. R.F. Says: If you just have one “odd” split that you need to program, don’t change the “default” repeated shifts using this Set Mode Item. Enter the transmit and receive frequencies separately, as shown on page ??. Checking the Repeater Uplink (Input) Frequency It often is helpful to be able to check the uplink (input) frequency of a repeater, to see if the calling station is within direct (“Simplex”) range. To do this, just press the [REV(HOME)] key. You’ll notice that the display has shifted to the repeater uplink frequency. Press the [REV(HOME)] key again to cause operation to revert to normal monitoring of the repeater downlink (output) frequency. While you are listening on the input frequency to the repeater using the [REV(HOME)] key, the repeater offset icon will blink. R. F. Says: The configuration of this key may be set either to “RV” (for checking the input frequency of a repeater), or “HM” (for instant switching to the “Home” channel for the band you are operating on). To change the configuration of this key, use Set Mode Item 33: REV/HM. See page 75. VFO Split Mode

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 16/64 Vertex Standard Co., Ltd. For working on repeaters with odd splits, or communicating with astronauts on orbiting space vehicles, it may be necessary to use non-standard splits between the receive and transmit frequency. If the application is infrequent enough not to warrant the dedication of a memory channel for this purpose, the “VFO Split” mode may be used. Here is the procedure: 1. Press the [VFO(PRI)] key, as needed, to select VFO-A. Set VFO-A for the receiving 2. Now press the [VFO(PRI)] key, and set VFO-B for the desired transmit frequency (e.g. 144.750 MHz). 3. Press the [VFO(PRI)] key once more to re-establish VFO-A as the “Main” (receive) VFO. 4. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 5. Rotate the DIAL to select Set Mode Item 43: SPLIT. 6. Press the [F/W] key, then rotate the DIAL to set this function “ON.” 7. Press the PTT key once to save the new setting and exit to normal operation. 8. You will now be operating in a Split mode. When you press the PTT key to transmit, you will observe that VFO-A and VFO-B will reverse positions. The VFO selection indicator “-b-” will blinks while the transceiver is transmitting, this means that the VFO Split feature is now activated. 9. If you need to modify the VFO-B (transmit) frequency (for Doppler Shift correction, etc.), just press the [VFO(PRI)] key, then make the necessary change, then press [VFO(PRI)] key once more to restore VFO-A to the “receive VFO” position. 10. When you have finished with Split operation, re-enter the Set mode, and set Set Mode Item 43: SPLIT to “OFF.” A split frequency pair set up via the VFO Split feature cannot be stored directly into memory. You can, however, store odd frequency pairs using a different (slightly simpler) procedure. See page ??. CTCSS/DCS/EPCS Operation CTCSS Operation Many repeater systems require that a very-low-frequency audio tone be superimposed on your FM carrier in order to activate the repeater. This helps prevent false activation of the repeater by radar or spurious signals from other transmitters. This tone system, called “CTCSS” (Continuous Tone Coded Squelch System), is included in your VX-120/170, and is very easy to activate. R.F. Says: CTCSS setup involves two actions: setting the Tone Mode and then setting of the Tone Frequency. These actions are set up by using the [1(SQ TYP)] key and [2(CODE)] keys.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 17/64 Vertex Standard Co., Ltd. 1. Press the [F/W] key, then press the [1(SQ TYP)] key to enable selection of the CTCSS/DCS/ECS mode. 2. Rotate the DIAL knob so that “TONE” indication appears on the display; this activates the CTCSS Encoder, for access to repeaters requiring a CTCSS tone. 3. Rotation of the DIAL knob one more “click” in step “2” above will cause the “TSQL” notation to appear. When “TSQL” is displayed, this means that the Tone SQueLch system is active, which mutes your VX-120/170’s receiver until it receives a call from another radio sending out a matching CTCSS tone. This can help keep your radio quiet until a specific call is received, which may be helpful while operating in congested areas of the band. R.F. Says: 1) You may notice a “REV TN” indication on the display while you rotate the DIAL knob in this step; this means that the Reverse Tone Squelch system is active, which mutes your VX-120/170’s receiver (instead of opening the squelch) when it receives a call from the radio sending a matched CTCSS tone. The “TSQ” icon will blink on the display when the Reverse Tone Squelch system is activated. 2) You may notice the “DCS” and “ECS” indications on the display while you rotate the DIAL knob still more. We’ll discuss the Digital Code Squelch system (for “DCS”) and Enhanced Paging & Code Squelch (for “ECS”) later. 5. When you have made your selection of the CTCSS tone mode, press the PTT switch to save the new setting. 6. Press the [F/W] key, then press the [2(CODE)] key to enable adjustment of the CTCSS frequency. 7. Rotate the DIAL knob until the display indicates the Tone Frequency you need to be using (ask the repeater owner/operator if you don’t know the tone frequency). 8. When you have made your selection, press the [F/W] key momentarily to save the new settings and exit to normal operation. This is different than the usual method of restoring normal operation, and it applies only to the configuration of the CTCSS/DCS frequencies. R.F. Says: Your repeater may or may not re-transmit a CTCSS tone - some systems just use CTCSS to control access to the repeater, but don’t pass it along when transmitting. If the S-Meter deflects, but the VX-120/170 is not passing audio, repeat steps “1” through “4” above, but rotate the DIAL so that “TSQ” disappears - this will allow you to hear all traffic on the channel being utilized.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 18/64 Vertex Standard Co., Ltd. DCS Operation Another form of tone access control is Digital Code Squelch, or DCS. It is a newer, more advanced tone system which generally provides more immunity from false paging than does CTCSS. The DCS Encoder/Decoder is built into your VX-120/170, and operation is very similar to that just described for CTCSS. Your repeater system may be configured for DCS; if not, DCS is frequently quite useful in Simplex operation if your friend(s) use transceivers equipped with this advanced feature. R.F. Says: Just as in CTCSS operation, DCS requires that you set the Tone Mode to DCS and that you select a tone code. 1. Press the [F/W] key, then press the [1(SQ TYP)] key to enable selection of the CTCSS/DCS/ECS mode. 2. Rotate the DIAL knob until the “DCS” indication appears on the display; this activates the DCS Encoder/Decoder. 3. Press the PTT key to save the new setting. 4. Press the [F/W] key, then press the [2(CODE)] key to enable adjustment of the DCS code. 5. Rotate the DIAL knob to select the desired DCS Code (a three-digit number). Ask the repeater owner/operator if you don’t know DCS Code; if you are working simplex, just set up the DCS Code to be the same as that used by your friend(s). 6. When you have made your selection, press the [F/W] key momentarily to save the new settings and exit to normal operation. R.F. Says: Remember that the DCS is an Encode/Decode system, so your receiver will remain muted until a matching DCS code is received on an incoming transmission. Switch the DCS off when you’re just tuning around the band! Tone Search Scanning In operating situations where you don’t know the CTCSS or DCS tone being used by another station or stations, you can command the radio to listen to the incoming signal and scan in search of the tone being used. Two things must be remembered in this regard:  You must be sure that your repeater uses the same tone type (CTCSS vs. DCS).  Some repeaters do not pass the CTCSS tone; you may have to listen to the station(s) transmitting on the repeater uplink (input) frequency in order to allow Tone Search Scanning to work. To scan for the tone in use:

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 19/64 Vertex Standard Co., Ltd. 1. Set the radio up for either CTCSS or DCS Decoder operation (see the previous discussions). In the case of CTCSS, “T SQ” will appear on the display; in the case of DCS, “DCS” will appear on the display. 2. Press the [F/W] key, then press the [2(CODE)] key. 3. Press and hold in the [] or [] key for one second to start scanning for the incoming CTCSS or DCS tone/code. 4. When the radio detects the correct tone or code, it will halt on that tone/code, and audio will be allowed to pass. Press the [F/W] key to lock in that tone/code, then press the [F/W] key again to exit to normal operation. R.F. Says: If the Tone Scan feature does not detect a tone or code, it will continue to scan indefinitely. When this happens, it may be that the other station is not sending any tone. You can press the PTT switch to halt the scan at any time. You also can press the MONI key during Tone Scanning to listen to the (muted) signal from the other station. When you release the MONI key, Tone Scanning will resume after about a second. Tone Scanning works either in the VFO or Memory modes. EPCS (Enhanced Paging & Code Squelch) The VX-120/170 includes an Enhanced CTCSS tone encoder/decoder and a dedicated microprocessor providing paging and selective calling feature. This allows you to place a call to a specific station (Paging), and to receive calls of your choice directed only to you (Code Squelch). The paging and code squelch systems use two pairs of (alternately switched) CTCSS tones which are stored in the pager memories. Basically, your receiver remains silent until it receives the CTCSS tone pair that matches those stored in the Receiving Pager Memory. The squelch then opens so the caller is heard, and the paging ringer immediately sounds, if activated. When you close the PTT switch to transmit, the CTCSS tone pair which is stored in the Transmitting Pager Memory will be transmitted automatically. On the paged radio, the squelch will close automatically after the incoming page ends. Meanwhile, on the paging radio, the Enhanced Paging and Code Squelch system will be disabled after the PTT key is released after the paging transmission. You may re-activate the Enhanced Paging and Code Squelch system again using Set Mode Item 29: PAGER, if desired. Storing the CTCSS Tone Pairs for EPCS Operation

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 20/64 Vertex Standard Co., Ltd. 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 18: ECS.CDR for the Receiving CTCSS Tone Pair or Set Mode Item 19: ECS.CDT for the Transmitting CTCSS Tone Pair. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set the CTCSS Tone number which corresponds to the first tone of the CTCSS Tone Pair. 5. Press the [] or [] key, then rotate the DIAL knob to set the CTCSS Tone number which corresponds to the second tone of the CTCSS Tone Pair. 6. Press the PTT switch to save the new setting and exit to normal operation. CTCSS Tone Number 01 67.0 11 94.8 21 131.8 31 171.3 41 203.502 69.3 12 97.4 22 136.5 32 173.8 42 206.503 71.9 13 100.0 23 141.3 33 177.3 43 210.704 74.4 14 103.5 24 146.2 34 179.9 44 218.105 77.0 15 107.2 25 151.4 35 183.5 45 225.706 79.7 16 110.9 26 156.7 36 186.2 46 229.107 82.5 17 114.8 27 159.8 37 189.9 47 233.608 85.4 18 118.8 28 162.2 38 192.8 48 241.809 88.5 19 123.0 29 165.5 39 196.6 49 250.310 91.5 20 127.3 30 167.9 40 199.5 50 251.4R.F. Says: The VX-120/170 does not recognize the order of the 1st tone and the 2nd tone. In other words, for example, the VX-120/170 considers both CTCSS pairs “10, 35” and “35, 10” to be identical. Activating the Enhanced Paging & Code Squelch System 1. Press the [F/W] key, then press the [1(SQ TYP)] key to enable selection of the CTCSS/DCS/ECS mode. 2. Rotate the DIAL knob so that “ECS” indication appears on the display. 3. Press the PTT switch to save the new setting and activate the Enhanced Paging & Code Squelch. 4. To disable the Enhanced Paging & Code Squelch, just repeat the above procedure, rotating the DIAL knob to select “OFF” in step 2 above. When the Enhanced Paging & Code Squelch feature is activated, the “SQ” icon will blink on the display. Paging Answer Back When you press the PTT switch to respond to a page call, the VX-120/170 transmits the same CTCSS tone pair. This tone pair will open the Code Squelch of the calling station. If you prefer, you can have the VX-120/170 respond to page calls automatically (“transpond”).

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 21/64 Vertex Standard Co., Ltd. To enable this feature: 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 30: PAG.ABK. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select ABK. ON. 5. Press the PTT switch to save the new setting and exit to normal operation. R.F. Says: The Paging Answer Back feature constitutes a form of “remote control” operation that may be restricted to certain frequencies. U.S. users should confirm the current status of §97.201(b) of the FCC’s rules governing the Amateur service before utilizing this feature on the 144 MHz band. CTCSS/DCS/EPCS Bell Operation During CTCSS Decode, DCS, or EPCS operation, you may set up the VX-120/170 such that a ringing “bell” sound alerts you to the fact that a call is coming in. Here is the procedure for activating the CTCSS/DCS/EPCS Bell: 1. Set the transceiver up for CTCSS Decode (“Tone Squelch”), DCS, or EPCS operation, as described previously. 2. Adjust the operating frequency to the desired channel. 3. Press the [F/W] key, then press the [5(BELL)] key. 4. Rotate the DIAL knob to set the desired number of rings of the Bell. The available choices are “1 T,” “3 T,” “5 T,” or “8 T” rings, CONT (continuous ringing), or OFF. 5. Press the PTT switch momentarily to save the new setting and exit to normal operation. When you are called by a station whose transceiver is sending a CTCSS tone, DCS code, or CTCSS code pair which matches that set into your Decoder, the Bell will ring in accordance with this programming. Split Tone Operation The VX-120/170 can be operated in a Split Tone configuration via the Set mode. 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 43: SPLIT. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select ON (to enable the Split Tone feature). 5. Press the PTT key momentarily to save the new setting and exit to normal operation. When the Split Tone feature is activated, you can see the following additional parameters following the “DCS” parameter (while selecting the tone mode by pressing [F/W]  [1(SQ

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 22/64 Vertex Standard Co., Ltd. TYP)]): D: DCS Encode only (the “DCS” icon will blink during operation) T DCS: Encodes a CTCSS Tone and Decodes a DCS code (the “T” icon will blink and the “DCS” icon will appear during operation) D TSQL: Encodes a DCS code and Decodes a CTCSS Tone (the “TSQ” icon will appear and the “DCS” icon will blink during operation) Select the desired operating mode, from the selections shown above. Tone Calling (1750 Hz) If the repeaters in your country require a 1750-Hz burst tone for access (typically in Europe), you can set the MONI key to serve as a “Tone Call” switch instead. To change the configuration of this switch, we again use the Set Mode to help us. 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 27: M/T-CL. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select “T-CALL” on the display. 5. Press the PTT switch to save the new setting and exit to normal operation. To access a repeater, press and hold in the MONI key for the amount of time specified by the repeater owner/operator. The transmitter will automatically be activated, and a 1750-Hz audio tone will be superimposed on the carrier. Once access to the repeater has been gained, you may release the MONI key, and use the PTT key for activating the transmitter thereafter. Memory Mode The VX-120/170 provides a wide variety of memory system resources. These include: • 1000 “Standard” memory channels, numbered “000” through “999.” • A “Home” channel, providing storage and quick recall of one prime frequency. • 50 sets of band-edge memories, also known as “Programmable Memory Scan” channels, labeled “L1/U1” through “L50/U50.” • 10 Memory Banks, labeled “BANK 1” through “BANK10.” Each Memory Bank can be assigned up to 1000 channels from the “standard” and “PMS” memory channels. • 10 “Weather Broadcast” Channels. Memory Storage 1. Select the desired frequency, while operating in the VFO mode. Be sure to set up any

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 23/64 Vertex Standard Co., Ltd. desired CTCSS or DCS tones, as well as any desired repeater offset. The power level may also be set at this time, if you wish to store it. 2. Press and hold in the [F/W] key for one second. 3. Within ten seconds of releasing the [F/W] key, you need to make a decision regarding channel storage. The microprocessor will automatically select the next-available “free” channel (a memory register on which no data has been stored), so you may not wish to make any change; if this is the case, proceed to step 4. If you wish to select a different channel number into which to store the data, rotate the DIAL knob to select the desired memory channel. You may jump 100 memory channels, if you’re in a hurry (101  201  301 …) by pressing the [VFO(PRI)] key (multiple times, if necessary). 4. Press the [F/W] key once more to store the frequency into memory. 5. You still will be operating in the “VFO” mode, so you may now enter other frequencies, and store them into additional memory locations, by repeating the above process. Storing Independent Transmit Frequencies (“Odd Splits”) All memories can store an independent transmit frequency, for operation on repeaters with non-standard shift. To do this: 1. Store the receive frequency using the method already described under MEMORY STORAGE (it doesn’t matter if a repeater offset is active). 2. Turn to the desired transmit frequency, then press and hold in the [F/W] key for one second. 3. Within ten seconds of releasing the [F/W] key, rotate the DIAL knob to select the same memory channel number as used in step “1” above. 4. Press and hold in the PTT switch, then press the [F/W] key once more momentarily while holding the PTT switch in (this does not key the transmitter). R.F. Says: Whenever you recall a memory which contains independently-stored transmit and receive frequencies, the “–+” indication will appear in the display. Memory Recall 1. While operating in the VFO mode, press the [MR(SKIP)] key to enter the Memory mode. 2. Rotate the DIAL knob to select the desired channel. 3. To return to the VFO mode, press the [VFO(PRI)] key. R.F. Says: When the radio is already set to the Memory mode, an easy way to recall memories is to key in the memory channel number, then press the [F/W] key. For example, to recall memory channel #14, press [1(SQ TYP)]  [4(RPT)]  [F/W].

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 24/64 Vertex Standard Co., Ltd. You may also recall Memory Channel #000 and Programmable Memory channels (“L01/U01” through “L50/U50.”) using the following numbers: Memory Channel #000 = “1000,” Programmable Memory channels #L1 = “1001,” U1 = “1002,” L50 = “1099,” and U50 = “1100.” HOME Channel Memory A special one-touch “HOME” channel is available, to allow quick recall of a favorite operating frequency. Home Channel storage is simple to accomplish: 1. Change the setting of Set Mode Item 33: REV/HM from “REV” to “HOME,” if it is not already set to this option (see page ??). 2. Select the desired frequency, while operating in the VFO mode. Be sure to set up any desired CTCSS or DCS tones, as well as any desired repeater offset. The power level may also be set at this time, if you wish to store it. 3. Press and hold in the [F/W] key for one second. 4. While the memory channel number is blinking, just press the [REV(HOME)] key. The frequency and other data (if any) will now be stored in the special HOME channel register. 5. You may repeat this process on the other operating bands. 6. To recall the HOME channel, press the [REV(HOME)] key momentarily while operating either in the VFO or MR mode. Labeling Memories You may wish to append an alpha-numeric “Tag” (label) to a memory or memories, to aid in recollection of the channel’s use (such as a club name, etc.). This is easily accomplished using the Set Mode. 1. Recall the memory channel on which you wish to append a label. 2. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 3. Rotate the DIAL knob to select Set Mode Item 29: NM WRT. 4. Press the [F/W] key momentarily to display the previously stored label (if any). 5. Press the [F/W] key again to clear any previous label. 6. Rotate the DIAL knob to select the first digit of the desired label. 7. Press the [F/W] key to move to the next character. 8. If you make a mistake, press the [] key to back-space the cursor, then re-enter the correct letter, number, or symbol.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 25/64 Vertex Standard Co., Ltd. 9. Repeat steps 5 through 7 to program the remaining letters, numbers, or symbols of the desired label. A total of six characters may be used in the creation of a label. 10. When you have programmed a label which is under 6 characters, press and hold in the [F/W] key for one second to confirm the label (if the label is exactly 6 characters in length, you do not need to press and hold in [F/W]). 11. When you have completed the creation of the label, press the PTT key to save the label and return to the memory recall mode with labeled (alpha-numeric “Tag”) display. To disable the alpha-numeric Tag (enabling the frequency display): 1. Set the VX-120/170 to the “MR” (Memory Recall) mode, and recall the memory channel on which you wish to disable the alpha-numeric Tag. 2. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 3. Rotate the DIAL knob to select the Set Mode Item 28: NAME. 4. Press the [F/W] key momentarily to enable adjustment of this Item’s setting. 5. Rotate the DIAL knob to set this Set Mode Item to “FREQ” (enabling the frequency display). 6. Press the PTT key to save the new setting and activate the alpha-numeric Tag. To display the alpha-numeric Tag again, just repeat the above procedure, rotating the DIAL knob to select “ALPFA” in step 5 above. R. F. Says: Set Mode Item 28:NAME is not applied to all memory channels at once (just the channel on which you currently are operating). Memory Offset Tuning Once you have recalled a particular memory channel, you may easily tune off that channel, as though you were in the “VFO” mode. 1. With the VX-120/170 in the “MR” (Memory Recall) mode, select the desired memory channel. 2. Press the [MR(SKIP)] key momentarily to activate the “Memory Tuning” feature. The Memory Channel number will be replaced by “tun.” And if you have an alpha-numeric Tag displayed on the memory channel, the display will automatically revert to display of the operating frequency, so you can navigate without having to enter the Menu to change the display configuration. 3. Rotate the DIAL knob, as desired, to tune to a new frequency. The synthesizer steps selected for VFO operation on the current band will be the steps used during Memory Tuning.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 26/64 Vertex Standard Co., Ltd. 4. If you wish to return to the original memory frequency, just press the [MR(SKIP)] key momentarily. The display will revert to display of the alpha-numeric Tag (if any) that may have originally appeared on the LCD. 5. If you wish to store a new frequency set during Memory Tuning, just press and hold in the [F/W] key for one second, per normal memory storage procedure. The microprocessor will automatically set itself to the next-available clear memory location, and you then press [F/W] again to lock in the new frequency. R.F. Says: 1) If you want to replace the original memory contents with those of the new frequency, be sure to rotate the DIAL knob to the original memory channel number! 2) Any required CTCSS/DCS changes, or repeater offset modifications, must be done before storing the data into the new (or original) memory channel location. Deleting Memories You may desire to delete the memories (except the Memory Channel “1” and Home Channel). The procedure for deleting a channel is quite simple. 1. Press the [V/M(PRI)] key, if needed, to enter the MR mode. 2. Press and hold in the [F/W] key for one second, then rotate the DIAL knob to select the memory channel to be “deleted.” 3. Press the [MR(SKIP)] key momentarily. The display will revert to memory channel #1. The previously-selected memory will be deleted. R.F. Says: Important Notice! Once deleted, the channel data cannot be recovered! Memory Bank Operation The large number of memories available in the VX-120/170 could be difficult to utilize without some means of organizing them. Fortunately, the VX-120/170 includes provision for dividing the memories into as many as ten Memory Groups, so you can categorize the memories in a manner convenient to you. You may enter and exit the “Memory Group” mode by a single press of the [BAND] key, as we shall see below. Assigning Memories to a Memory Bank 1. Recall the memory channel to be assigned to a Memory Bank. 2. Press and hold in the [VFO(PRI)] key for one second, then rotate the DIAL knob to select the Memory Bank number you want as the Memory Bank for this channel (“BANK 1” ~ “BANK10”). 3. Press and hold in the [F/W] key for one second to copy the memory channel data into the

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 27/64 Vertex Standard Co., Ltd. Memory Bank. R.F. Says: 1) You may assign one memory channel into multiple Memory Banks. 2) The PMS memory channels (L1/U1 through L50/U50) may not be assigned to a Memory Bank. Memory Bank Recall 1. Press the [MR(SKIP)] key, if needed, to enter the Memory Recall mode. 2. Press and hold in the [VFO(PRI)] key, then rotate the DIAL knob to select the desired Memory Bank (“BANK 1” through “BANK10”). 3. Press the [MR(SKIP)] key momentarily; now, as you rotate the DIAL knob to select memories, you will observe that you can only select memory channels in the current memory bank. The “BANK” indication will appear at the left side of the frequency display while operating within a Memory Bank. 4. To change to another Memory Bank, press and hold in the [VFO(PRI)] key, rotate the DIAL knob to select the new Memory Bank, then press the [MR(SKIP)] key momentarily. 5. To exit from Memory Bank operation, select “NOBANK” in step 4 above. You are now in the “standard” Memory Recall mode, without utilization of the Memory Banks. The memories stored in the various Banks will remain in those banks, however; you do not need to store them again. Moving Memory Data to the VFO Data stored on memory channels can easily be moved to the last selected VFO, if you like. 1. Select the memory channel containing the frequency data to be moved to the VFO. 2. Press the [BAND(BAND DN)] key momentarily to activate the “Memory Tune” feature temporarily, then press and hold in the [VFO(PRI)] key for one second. The data will now have been copied to the last selected VFO, although the original memory contents will remain intact on the previously-stored channel. R.F. Says: If a Split Frequency Memory channel was transferred, the TX frequency will be ignored (you will be set up for Simplex operation on the Receive frequency). Memory Only Mode Once memory channel programming has been completed, you may place the radio in a “Memory Only” mode, whereby VFO operation is impossible. This may be particularly useful during public-service events, where a number of operators may be using the radio for first time, and ultimate simplicity of channel selection is desired.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 28/64 Vertex Standard Co., Ltd. To place the radio into the Memory Only mode: 1. Turn the radio off. 2. Press and hold in the MONI switch (just below the PTT switch) while turning the radio on. 3. Rotate the DIAL knob to select the “F5 M-ONLY” option, then press the [F/W] key. To return to normal operation, repeat the above power-on procedure. Weather Broadcast Channels (U. S. Version) The VHF Weather Broadcast Station Memory Channel Bank has been pre-programmed at the factory, for quick selection of NOAA weather information stations. 1. Press and hold in the [1(SQ TYP)] key for one second to recall the Weather Broadcast Memory Bank. 2. Rotate the DIAL knob to select the desired Weather Broadcast channel. 3. If you wish to scan this bank to search for louder stations, just press the PTT switch. When the scanner pauses on a station, press the PTT key once to halt the scan, or press it twice to restart the scan. 4. To exit to normal operation, press the [VFO(PRI)] key, or press and hold in the [1(SQ TYP)] key again. Severe Weather Alert In the event of extreme weather disturbances, such as severe thunderstorms and hurricanes, the NOAA (National Oceanic and Atmospheric Administration) sends a weather alert accompanied by a 1050 Hz tone and subsequent weather report on one of the NOAA weather channels. See page 39 for details regarding activation of this mode. Scanning The VX-120/170 allows you to scan just the memory channels, the entire operating band, or a portion of that band. It will halt on signals encountered, so you can talk to the station(s) on that frequency, if you like. Scanning operation is basically the same in each of the above modes. Before you begin, take a moment to select the way in which you would like the scanner to resume scanning after it halts on a signal. Setting the Scan-Resume Technique Three options for the Scan-Resume mode are available:

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 29/64 Vertex Standard Co., Ltd. BUSY: In this mode, the scanner will halt on a signal it encounters. Two seconds after the carrier has dropped because the other station(s) ceased transmission, the scanner will resume. In the case of constant-carrier signals like Weather Station broadcasts, the scanner will likely remain on this frequency indefinitely. HOLD: In this mode, the scanner will halt on a signal it encounters. It will not restart automatically; you must manually re-initiate scanning if you wish to resume. TIME: In this mode, the scanner will halt on a signal it encounters, and will hold there for five seconds. If you do not take action to disable the scanner within that time period, the scanner will resume even if the stations are still active. To set the Scan-Resume mode: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 32: RESUME. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired scan-resume mode. 5. When you have made your selection, press the PTT key to save the new setting and exit to normal operation. R.F. Says: The default condition for this Set Mode Item is “BUSY.” VFO Scanning The VX-120/170 provides two VFO scanning functions: “Manual VFO Scanning” and “Programmed VFO Scanning.” Manual VFO Scan 1. Select the VFO mode by pressing the [VFO(PRI)] key, if necessary. 2. Press and hold in either the [] or [] key for one second to initiate upward or downward scanning, respectively. 3. If and when the scanner encounters a signal strong enough to open the squelch, the scanner will halt temporarily; the decimal point of the frequency display will blink during this “Pause” condition. 4. The scanner will then resume according to the Scan-Resume mode selected in the previous section. 5. To cancel scanning, press the PTT switch or [V/M(PRI)] key. Programmed VFO Scan 1. Select the VFO mode by pressing the [V/M(PRI)] key, if necessary.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 30/64 Vertex Standard Co., Ltd. 2. Press and hold in the [BAND(BAND DN)] key for one second, then rotate the DIAL knob to select the bandwidth for the Programmed VFO scanner. Available selections are ±1 MHz, ±2 MHz, ±5 MHz, ALL, PMS-X, and BAND. ALL: The scanner will sweep all frequencies. PMS-X: The scanner will sweep frequencies within the currently-selected PMS frequency pair. See page 40 for details. BAND: The scanner will sweep frequencies only on the current band. 3. Press the [BAND(BAND DN)] key momentarily to save the new setting and exit to normal operation. 4. Press and hold in the [V/M(PRI)] key for one second to start scanning. 5. If and when the scanner encounters a signal strong enough to open the squelch, the scanner will halt temporarily; the decimal point of the frequency display will blink during this “Pause” condition. 6. The scanner will then resume according to the Scan-Resume mode selected in the previous section. 7. To cancel scanning, press the PTT switch or [V/M(PRI)] key. R.F. Says: 1) When you start the Programmed VFO Scanner, the VX-120/170 will be changing frequency in the upward direction. If you want to change direction of the scan while it is underway, rotate the DIAL knob one click in the opposite direction (in this case, one click counter-clockwise). You’ll see the scanner turn around and change frequency downward! 2) You may change the scanner’s method of operation so that the VFO frequency will jump to the low band edge of the next band when the VFO frequency reaches the high edge of the current band (or vice versa). See page 78 regarding Set Mode Item 54: VFO.BND. Setting the Squelch Level during active Scanning operation The VX-120/170 allows adjustment of the Squelch level “on the fly” while you are scanning. 1. While the scanner is engaged, press the [F/W] key, then press the MONI key (the current squelch level (e.g. “S 1”) will appear in fine print above the frequency display). 2. Rotate the DIAL to select the desired Squelch level. 3. Press the PTT switch momentarily to save the new setting and exit to normal operation. In this case, pressing the PTT switch this one time will not causing scanning to stop. Memory Scanning Memory scanning is similarly easy to initiate: 1. Select the Memory mode by pressing the [MR(SKIP)] key, if necessary.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 31/64 Vertex Standard Co., Ltd. 2. Press and hold in either the [] or [] key for one second to initiate upward or downward scanning, respectively. 3. If and when the scanner encounters a signal strong enough to open the squelch, the scanner will halt temporarily; the decimal point of the frequency display will blink during this “Pause” condition. 4. The scanner will then resume according to the Scan-Resume mode selected in the previous section. 5. To cancel scanning, press the PTT switch or [MR(SKIP)] key. How to Skip (Omit) a Channel during Memory Scan Operation As mentioned previously, some continuous-carrier stations like a Weather Broadcast station will seriously impede scanner operation if you are using the “Carrier Drop” Scan-Resume mode, as the incoming signal will not pause long enough for the transceiver to resume scanning. Such channels may be “Skipped” during scanning, if you like: 1. Recall the Memory Channel to be skipped during scanning. 2. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 3. Rotate the DIAL knob to select Set Mode Item 42: SKIP. 4. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 5. Rotate the DIAL knob so as to select “SKIP.” The current Memory Channel will now be ignored during scanning. The “ONLY” selection is used for “Preferential Memory Scan,” described in the next section. 6. When you have made your selection, press the PTT key to save the setting and exit to normal operation. When you recall the “skipped” memory channel manually, a small “” icon will appear at the left of the memory channel number, indicating it is to be ignored during scanning. To re-institute a channel into the scanning loop, select “OFF” in step 5 above (the “Skipped” channel will, of course, still be accessible via manual channel selection methods using the DIAL knob in the MR mode, whether or not it is locked out of the scanning loop). R.F. Says: In the factory default configuration, you may recall Set Mode Item 42: SKIP by pressing [F/W]  [8(P2)]. Preferential Memory Scan The VX-120/170 also allows you to set up a “Preferential Scan List” of channels which you can “flag” within the memory system. These channels are designated by a blinking “” icon when you have selected them, one by one, for the Preferential Scan List.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 32/64 Vertex Standard Co., Ltd. When you initiate memory scanning, beginning on a channel with the blinking “” icon appended, only those channels bearing the blinking “” icon will be scanned. If you initiate scanning on a channel which does not have the blinking “” icon appended, you will scan all channels including those with the blinking “” icon appended. Here is the procedure for setting up and using the Preferential Scan List: 1. Recall the Memory Channel which you wish to add to the Preferential Scan List. 2. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 3. Rotate the DIAL knob to select Set Mode Item 42: SKIP. 4. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 5. Rotate the DIAL knob so as to select “ONLY.” 6. When you have made your selection, press the PTT key to save the settings and exit to normal operation. 7. To remove a channel from the Preferential Scan List, just repeat the above procedure, rotating the DIAL knob to select “OFF” in step 5 above. R.F. Says: In the factory default configuration, you may recall Set Mode Item 42: SKIP by pressing [F/W]  [8(P2)]. To initiate Preferential Memory Scan: 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 39: SCN MD. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob so as to select “ONLY.” 5. Press the PTT key to save the settings and exit to normal operation. 6. Now, press and hold in either the [] or [] key for one second to initiate the Preferential Memory Scan. Only the channels which have the blinking “” icon appended to the channel number will be scanned. 7. To cancel the Preferential Memory Scan, just repeat the above procedure, rotating the DIAL knob to select “MEM” in step 4 above Memory Bank Scan When the Memory Bank feature is engaged, the scanner sweeps only memory channels in the current Memory Bank. However, if the Memory Bank Link Scan feature is enabled, you may sweep the memory channels in several Memory Banks which you have selected. To enable the Memory Bank Link Scan feature: 1. Set the radio to the Memory mode by pressing the [MR(SKIP)] key, if necessary.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 33/64 Vertex Standard Co., Ltd. 2. Press and hold in the [VFO(PRI)] key for one second, then rotate the DIAL knob to select the first Memory Bank (“BANK 1” ~ “BANK10”) you wish to sweep using Memory Bank Link Scan. 3. Press the [F/W] key momentarily. The current Memory Bank will now be swept during Memory Bank Scan. A “decimal point” will be appended between the “N” and “K” of the Memory Bank number indication (such as BAN.K 2). 4. Repeat steps 2 and 3 above, to append the “decimal point” to any other Memory Banks you wish to sweep. 5. Now, press and hold in the [MR(SKIP)] key for one second to initiate the Memory Bank Link Scan. 6. To remove a Memory Bank from the Memory Bank Link Scan, repeat steps 2 and 3 above, to delete the “decimal point” from the Memory Bank number indication. Weather Alert Scan This feature allows you to check the Weather Broadcast Memory Channels for the presence of the NOAA Alert Tone while operating using VFO scan or Memory channel scan. When the Weather Alert Scan feature is engaged, the FT-600R will check the Weather Broadcast Memory Channels for activity every five seconds while scanning. If you watch the display carefully, you’ll observe the scanner periodically shifting to the Weather Broadcast bank, scanning the Weather channels quickly in search of the Alert Tone, after which regular scanning will resume for another five seconds. To enable the Weather Alert Scan feature: 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 56: WX ALT. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob so as to select “ALT. ON.” 5. When you have made your selection, press the PTT key to save the setting and exit to normal operation. 6. To disable the Weather Alert Scan feature, select “ALT.OFF” in step 4 above. R.F. Says: 1) When the Weather Alert Scan feature is engaged, the Scan-Resume mode is fixed to “TIME.” 2) If you are just scanning the Weather Broadcast Channels, the VX-120/170’s receiver will remain muted indefinitely unless the Alert Tone is received. This yields a long period of monitoring time, as no power will be consumed via audio output while scanning for the Alert Tone is in progress.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 34/64 Vertex Standard Co., Ltd. Programmable (Band Limit) Memory Scan (PMS) This feature allows you to set sub-band limits for either scanning or manual VFO operation. For example, you might wish to set up a limit (in North America) of 144.300 MHz to 148.000 MHz so as to prevent encroachment into the SSB/CW “Weak Signal” portion of the band below 144.300 MHz. Here’s how to do this: 1. Set the radio to the VFO mode by pressing the [VFO(PRI)] key, if necessary. 2. Using the techniques learned earlier, store (per the above concept) 144.300 MHz into Memory Channel #L01 (the “L” designates the Lower sub-band limit). 3. Likewise, store 148.000 MHz into Memory Channel #U01 (the “U” designates the Upper sub-band limit). 4. Confirm the radio is in the VFO mode, press and hold in the [VFO(PRI)] key for one second, and rotate the DIAL knob to select the desired PMS frequency pair (PMSxx), then press the [VFO(PRI)] key. 5. Now, press and hold in the [MR(SKIP)] key for one second to initiate the Programmable (Band Limit) Memory Scan; the Memory Channel number will be replaced by “Pxx.” Scanning and tuning will now be limited within the just-programmed range. 6. 50 pairs of Band Limit memories, labeled L1/U1 through L50/U50 are available. You therefore can set upper and lower operation limits in multiple segments on a number of bands, if you like. Priority Channel” Scanning (Dual Watch) The VX-120/170’s scanning features include a two-channel scanning capability which allows you to operate on a VFO or Memory channel, while periodically checking a user-defined Memory Channel for activity. If a station is received on the Memory Channel which is strong enough to open the Squelch, the scanner will pause on that station in accordance with the Scan-Resume mode set via Set Mode Item 32: RESUME. See page ??. Here is the procedure for activating Priority Channel Dual Watch operation: VFO Priority 1. Recall the memory channel you wish to use as the “Priority” frequency. 2. Now, set the radio to the VFO mode by pressing the [VFO(PRI)] key. 3. Press the [F/W] key, then press the [VFO(PRI)] key to activate the VFO Priority mode. The display will remain on the VFO frequency, but every five seconds the radio will check the Priority Channel (memory channel) for activity. 4. Press [F/W]  [VFO(PRI)] again to disable the VFO Priority mode.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 35/64 Vertex Standard Co., Ltd. Memory Channel Priority 1. Store the frequency you wish to be the “Priority” Channel into memory channel “1.” 2. Now, set the radio for operation on another memory channel. 3. Press the [F/W] key, then press the [VFO(PRI)] key to activate the Memory Priority mode. The display will remain on the current memory channel frequency, but every five seconds the radio will check the Priority Channel (memory channel “1”) for activity. 4. Press [F/W]  [VFO(PRI)] again to disable the Memory Priority mode. When the Memory Bank feature is activated, the VX-120/170 will check the lowest memory channel in the current Memory Bank as the priority channel. HOME Channel Priority 1. Recall the memory channel you wish to use as the “Priority” frequency. 2. Now set the radio for operation on a HOME channel by pressing the [F/W] key followed by [REV/HOME]. 3. Press the [F/W] key, then press the [VFO(PRI)] key to activate the HOME Priority mode. The display will remain on the HOME channel frequency, but every five seconds the radio will check the Priority Channel (memory channel) for activity. 4. Press [F/W]  [VFO(PRI)] again to disable the HOME Priority mode. WX Channel Priority 1. Recall the memory channel you wish to use as the “Priority” frequency. 2. Now, set the radio for operation on a WX channel by pressing and holding in the [1(SQ TYP)] key for one second. 3. Press the [F/W] key, then press the [VFO(PRI)] key to activate the WX Priority mode. The display will remain on the WX channel frequency, but every five seconds the radio will check the Priority Channel (memory channel) for activity. 4. Press [F/W]  [VFO(PRI)] again to disable the WX Priority mode. Priority Revert Mode During Priority channel operation (Dual Watch), a special feature is available which will allow you to move to the Priority channel instantly, without waiting for activity to appear on the Priority channel. When this feature is enabled, and Priority monitoring is engaged, just press the PTT switch; operation will instantly revert to the Priority channel.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 36/64 Vertex Standard Co., Ltd. To enable the Priority Revert operation: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 36: PRI.RVT. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set this Set Mode Item to “RVT. ON.” 5. When you have made your selection, press the PTT key to save the setting and exit to normal operation. 6. To disable the Priority Revert operation, just repeat the above procedure, rotating the DIAL knob to select “RVT.OFF” in step 4 above. Automatic Lamp Illumination on Scan Stop The VX-120/170 will automatically illuminate the LCD/Keypad Lamp whenever the scanner stops on a signal; this allows you to see the frequency of the incoming signal better at night. Note that this will, of course, increase the battery consumption, so be sure to switch it off during the day (the default condition for this feature is “ON”). The procedure for disabling the Scan Lamp is: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 40: SCN.LMP. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set this Set Mode Item to “OFF.” 5. When you have made your selection, press the PTT key to save the setting and exit to normal operation. Band Edge Beeper The VX-120/170 will automatically “beep” when a band edge is encountered during scanning (either in standard VFO scanning or during PMS operation). You may also enable this feature (band edge beeper) to operate when the frequency reaches the band edge while tuning using the DIAL knob. The procedure for enabling the Band-Edge Beeper is: 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 20: EDG.BEP. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set this Set Mode Item to “BEP. ON.”

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 37/64 Vertex Standard Co., Ltd. 5. When you have made your selection, press the PTT key to save the setting and exit to normal operation. Emergency Feature Emergency Channel Operation The VX-120/170 includes an “Emergency” feature which may be useful if you have someone monitoring on the same frequency as your transceiver’s “Home” channel. See page ?? for details on setting the Home channel. The “Emergency” feature is activated by pressing and holding in the [4(RPT]] key for one second. When this is done, (A) the radio is placed on the UHF amateur band Home channel, (B) it emits a loud “Alarm” sound (the volume is controlled by the VOL knob), (C) it flashes the LCD/keypad lamp, (D) if you press the PTT key, you will disable the Emergency feature temporarily; you can then transmit on the Home channel, and (E) two seconds after the PTT release, the Emergency feature will resume. To disable the “Emergency” feature, press the [F/W] key momentarily or turn the radio off by rotating the VOL/PWR knob fully counter-clockwise into the click-stop position. Use this feature if you are out for a walk and want a quick way of alerting a family member as to a dangerous situation. The alarm sound may discourage an attacker and allow you to escape. R.F. Says: 1) Be sure to arrange with a friend or family member to be monitoring on the same frequency, as there will be no identification sent via the Emergency alarm sound. And do not transmit the alarm tone except in a true emergency! 2) The “Emergency” feature may be changed to another function via Set Mode Item 21: EMG S; see page ?? for details. Emergency Automatic ID (EAI) Feature The Emergency Automatic ID (EAI) feature can be used for searching for persons who are incapacitated in disasters like earthquakes, especially search-and-rescue personnel who may have become injured in a debris field. In such cases, if another searcher sends out a unique command (CTCSS tone pair), the radio of the incapacitated party, who may not be able to speak or even press the PTT, will automatically cause the injured party’s radio to transmit, so others may perform direction-finding and effect a rescue. The callsign of the incapacitated person will also be transmitted, to assist the rescue team. If an emergency group is working in a dangerous area, all members should engage the EAI

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 38/64 Vertex Standard Co., Ltd. feature on their transceiver, so that others can provide assistance to a fallen team member, if necessary. The Emergency Automatic ID (EAI) Feature has two operating modes: (1) Interval mode and (2) Continuous mode. In the Interval mode, when the VX-120/170 receives the CTCSS tone pair which is stored in the Receiving Pager Code Memory (configured via Set Mode Item 31: PAG.CDR) on the frequency which is stored in Memory Channel “000,” the radio will automatically transmit a short (0.5 second) beep tone every 2.5 seconds until the EAI timer expiration at the power level stored in that memory channel; it is NOT necessary for the incapacitated person to press the PTT switch. Furthermore, if your call sign is stored in the radio by Set Mode Item 11: CW WRI, the radio will transmit your callsign on the air when this feature is first engaged by the remote page, and every 10 minutes thereafter. In the Continuous mode, when the VX-120/170 receives the CTCSS tone pair which is stored in the Receiving Pager Code Memory (configured via Set Mode Item 31: PAG.CDR) on the frequency which is stored in Memory Channel “000,” the radio will automatically transmit continuously, until the EAI timer expiration, at the power level stored in that memory channel; it is NOT necessary for the incapacitated person to press the PTT switch. Furthermore, if your call sign is stored in the radio by Set Mode Item 11: CW WRI, transmit your callsign on the air at the activating this feature, and after that every 10 minutes thereafter. The “callsign” ID can be changed to any desired sequence of characters, such as a name. After sending the callsign or name, the radio will repeatedly transmit three tones for a user-defined period of time (between 1 and 30 minutes). The callsign or name will be transmitted every 10 minutes. The Emergency Automatic ID (EAI) feature requires that you (1) store the CTCSS Tone Pair into the Receiving Pager Memory (see page 44 for procedure), and (2) store the desired UHF coordination frequency into Memory Channel “000” (see page 28 for procedure). To enable this feature: 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 18: EAI. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired EAI mode (Interval EAI or Continuous EAI) and its transmit time (1-10, 15, 20, 30, 40, and 50 minutes) or OFF. 5. Press the PTT switch to save the new setting and exit to normal operation. 6. To disable the Emergency Automatic ID feature, just repeat the above procedure, rotating the DIAL knob to select “OFF” in step 4 above.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 39/64 Vertex Standard Co., Ltd. When the Emergency Automatic ID feature is activated, the “Telephone” icon will blink in the LCD. Smart Search Operation The Smart Search feature allows you to load frequencies automatically according to where activity is encountered by your radio. When Smart Search is engaged, the transceiver will search above and below your current frequency, storing active frequencies as it goes (without stopping on them even momentarily); these frequencies are stored into a special Smart Search memory bank, consisting of 31 memories (15 above the current frequency, 15 below the current frequency, plus the current frequency itself). Two basic operating modes for Smart Search are available: SINGLE: In this mode, the transceiver will sweep the current band once in each direction starting on the current frequency. All channels where activity is present will be loaded into the Smart Search memories; whether or not all 31 memories are filled, the search will stop after one sweep in each direction. CONT: In this mode, the transceiver will make one pass in each direction as with One-Shot searching; if all 31 channels are not filled after the first sweep, however, the radio will continue sweeping until they are all filled. Setting the Smart Search Mode 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 38: S SRCH. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired Smart Search mode (see above). 5. When you have made your selection, press the PTT switch to save the setting and exit to normal operation. Storing Smart Search Memories 1. Set the radio to the VFO mode. Be sure that you have the Squelch adjusted properly (so that band noise is quieted). 2. Press and hold in the [3(TX PO)] key for one second to begin the Smart Search scanning. 3. As active channels are detected, you will observe the number of “loaded” channels increasing in the regular memory channel window. 4. Depending on the mode you set for Smart Search operation (“SINGLE” or “CONT”), the

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 40/64 Vertex Standard Co., Ltd. Smart Search scan will eventually terminate, and the LCD will revert to Smart Search Memory Channel “C.” 5. To recall the Smart Search memories, rotate the DIAL knob to choose from among the frequencies stored by Smart Search. 6. To return to normal operation, press the [VFO(PRI)] key. R.F. Says: Smart Search is a great tool when visiting a city for the first time. You don’t need to spend hours looking up repeater frequencies from a reference guidebook. . .just ask your VX-120/170 where the action is! Internet Connection feature The VX-120/170 can be used to access a “node” (repeater or base station) which is tied into the Vertex Standard WIRES™ (Wide-Coverage Internet Repeater Enhancement System) network, operating in the “SRG” (Sister Radio Group) mode. Details may be found at the WIRES-II Web site: http://www.vxstd.com/en/wiresinfo-en/. This feature may also be used to access other systems, as described below. 1. Press the [0(SET)] key momentarily to activate the Internet Connection feature. The “%” icon will appear in the upper right corner of the display. 2. Press and hold in the [0(SET)] key for one second, then rotate the DIAL knob to select the access number (ICOD “0” ~ “9,” “A,” “B,” “C,” “D,” “E(),” “F(#),”) corresponding to the WIRES™ node to which you wish to establish an Internet link (ask the node or repeater owner/operator if you don’t know the access number in the network). Now press the PTT switch to exit from the selection mode. 3. With the Internet Connection feature activated (as in step 1 above), the VX-120/170 will generate a brief (0.1 second) DTMF tone according to your selection in step 2. This DTMF tone is sent at the beginning of every transmission to establish or maintain the link to the local WIRES™ node operating in the SRG mode. 4. To disable the Internet Connection feature, press the [0(SET)] key momentarily (the “%” icon will disappear from the display). R. F. Says: If other users report that you always have a DTMF “beep” at the beginning of each transmission, and you are not operating in conjunction with Internet access, disable this function via step (4) above. You may access other Internet Link Systems (including WIRESTM in the “FRG” mode) that use a DTMF string for access. 1. Load the DTMF tones which you wish to use for Internet-link access into a DTMF

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 41/64 Vertex Standard Co., Ltd. Autodial memory register. For purposes of this example, we will use “#123” as the access code. A. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. B. Rotate the DIAL knob to select Set Mode Item 17: DT WRT. C. Press the [F/W] key to enable adjustment of this Set Mode Item. D. Rotate the DIAL knob to select the DTMF Memory register (“d1” ~ “d9”) into which you wish to store the access code. E. Press the [F/W] key momentarily. The first digit will blink. F. Rotate the DIAL knob to select “F” (representing DTMF “#”: the first digit of the DTMF string). G. Press the [F/W] key momentarily to accept the first digit and move to the second digit of the DTMF string. H. Repeat the previous steps until you have completed the access code (“#123”). I. Press and hold in the [F/W] key for one second to save the setting. 2. Press the PTT switch to exit to normal operation. 3. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode again. 4. Rotate the DIAL knob to select Set Mode Item 22: I NET. 5. Press the [F/W] key to enable adjustment of this Set Mode Item. 6. Rotate the DIAL knob to set this Set Mode Item to “INT.MEM” (thus activating the “Other Internet Link System” mode). 7. Press the PTT switch to save the new settings. 8. Press the [0(SET)] key momentarily to activate the Internet Connection feature. The “%” icon will appear in the upper right corner of the display. 9. Press and hold in the [%(0)SET] key for one second, rotate the DIAL knob to select the DTMF access number (“IMEM 1” ~ “IMEM 9”) corresponding to the Internet link repeater to which you wish to establish an Internet link, then press the PTT switch momentarily to lock in the selected access number. 10. Once the Internet Connection feature is activated per step 8 above, you may now press the [0(SET)] key, while you are transmitting, to send out the selected DTMF string (to establish the link to the desired Internet-link mode). To return to the WIRES™ mode, repeat steps 3 - 6 above, selecting “INT.COD” in step 6. ARTS™ (Automatic Range Transponder System) The ARTS™ feature uses DCS signaling to inform both parties when you and another ARTS™-equipped station are within communications range. This may be particularly useful

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 42/64 Vertex Standard Co., Ltd. during Search-and Rescue situations, where is important to stay in contact with other members of your group. Both stations must set up their DCS codes to the same code number, then activate their ARTS™ feature using the command appropriate for their radio. Alert ringers may be activated, if desired. Whenever you push the PTT, or every 25 (or 15) seconds after ARTS™ is activated, your radio will transmit a signal which includes a (subaudible) DCS signal for about 1 second. If the other radio is in range, the beeper will sound (if enabled) and the display will show “IN RNG” as opposed to the out of range display “OUT RNG” in which ARTS™ operation begins. Whether you talk or not, the polling every 15 or 25 seconds will continue until you de-activate ARTS™. Every 10 minutes, moreover, you can have your radio transmit your callsign via CW, so as to comply with identification requirements. When ARTS™ is de-activated, DCS will also be deactivated (if you were not using it previously in non-ARTS™ operation). If you move out of range for more than one minute (four pollings), your radio will sense that no signal has been received, three beeps will sound, and the display will revert to “OUT RNG.” If you move back into range, your radio will again beep, and the display will change back to the “IN RNG” indication. During ARTS™ operation, your operating frequency will continue to be displayed, but no changes may be made to it or other settings; you must terminate ARTS™ in order to resume normal operation. This is a safety feature designed to prevent accidental loss of contact due to channel change, etc. Basic ARTS™ Setup and Operation 1. Set your radio and the other radio(s) to the same DCS code number, per the discussion on page ??. 2. Press and hold in the [2(CODE)] key for one second. You will observe the “OUT. RNG” display on the LCD below the operating frequency. ARTS™ operation has now commenced. 3. Every 25 seconds, your radio will transmit a “polling” call to the other station. When that station responds with its own ARTS™ polling signal, the display will change to “IN RNG” to confirm that the other station’s polling code was received in response to yours. 4. Press the [F/W] key momentarily to exit ARTS™ operation and resume normal functioning of the transceiver. R.F. Says: ARTS™ constitutes a form of “remote control” operation that may be restricted to certain frequencies. U.S. users should confirm the current status of §97.201(b) of the FCC’s

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 43/64 Vertex Standard Co., Ltd. rules governing the Amateur service before utilizing this feature on the 144 MHz band. ARTS™ Polling Time Options The ARTS™ feature may be programmed to poll every 25 seconds (default value) or 15 seconds. The default value provides maximum battery conservation, because the polling signal is sent out less frequently. To change the polling interval: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 3: AR INT. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired polling interval (15 or 25 seconds). 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. ARTS™ Alert Beep Options The ARTS™ feature allows two kinds of alert beeps (with the additional option of turning them off), so as to alert you to the current status of ARTS™ operation. Depending on your location and the potential annoyance associated with frequent beeps, you may choose the Beep mode which best suits your needs. The choices are: INRANG: The beeps are issued only when the radio first confirms that you are within range, but does not re-confirm with beeps thereafter. ALWAYS: Every time a polling transmission is received from the other station, the alert beeps will be heard. OFF: No alert beeps will be heard; you must look at the display to confirm current ARTS™ status. To set the ARTS™ Beep mode, use the following procedure: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 2: AR BEP. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired ARTS™ Beep mode (see above). 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. CW Identifier Setup The ARTS™ feature includes a CW identifier, as discussed previously. Every ten minutes during ARTS™ operation, the radio can be instructed to send “DE (your callsign) K” if this

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 44/64 Vertex Standard Co., Ltd. feature is enabled. The callsign field may contain up to 6 characters. Here’s how to program the CW Identifier: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 11: CW WRT. 3. Press the [F/W] key momentarily to display any previously-stored callsign. 4. Press the [F/W] key again to clear any previous callsign. 5. Rotate the DIAL knob to select the first letter/number of your callsign, then press the [F/W] key momentarily to save the first letter/number and move on to the next character. 6. Repeat the previous step, as many times as necessary, to complete your callsign. If you make a mistake, press the [] key to move back to the previous letter/number’s slot, then re-select the correct letter/number. 7. When you have finished entering your entire callsign and it contains less than 6 characters, press and hold in the [F/W] key for one second to confirm the callsign. (if you callsign has exactly 6 characters, you do not need to press and hold in [F/W] in this step). 8. Press the PTT switch to save the settings and exit to normal operation. 9. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode again. 10. Rotate the DIAL knob to select Set Mode Item 10: CWID. 11. Press the [F/W] key momentarily, then rotate the DIAL knob to set this Item to “TX ON” (to enable the CW ID function). 12. Press the PTT switch to save the settings and exit to normal operation. R.F. Says: You may check your work by monitoring the entered callsign. To do this, repeat steps 1- 7 above, then press the MONI switch. DTMF Operation The VX-120/170’s 16-button keypad allows easy DTMF dialing for Autopatch, repeater control, or Internet-link access purposes. Besides numerical digits [0] through [9], the keypad includes the [*] and [#] digits, plus the [A], [B], [C], and [D] tones often used for repeater control. Manual DTMF Tone Generation You can generate DTMF tones during transmission manually. 1. Press the [F/W] key, then press the [9(DTMF)] key to disable the DTMF Autodialer, if necessary. The “CODE” indication will appear in the display for a moment. 2. Press the PTT switch to begin transmission.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 45/64 Vertex Standard Co., Ltd. 3. While transmitting, press the desired numbers on the keypad. 4. When you have sent all the digits desired, release the PTT switch. DTMF Autodialer Nine DTMF Autodial memories are provided, allowing you to store telephone numbers for autopatch use. You can also store short autopatch or Internet-link access code streams so as to avoid having to send them manually. Here is the DTMF Autodial storage procedure: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 17: DT WRT. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the DTMF Memory register (“d1” ~ “d9”) into which you wish to store this DTMF string. 5. Press the [F/W] key momentarily to begin DTMF Memory entry into the selected register. 6. Rotate the DIAL knob to select the first digit of the DTMF string. Selectable entries are 0 - 9, and A - F, with E and F representing DTMF “*” and “#” tones respectively. 7. Press the [F/W] key to accept the first digit and move to the next digit of the DTMF string. 8. Repeat steps 5 and 6 until you have completed the telephone number. 9. If you make a mistake, press the [] key to move back to the previous digit, then re-select the correct number. 10. If the telephone number made up of numbers only, you may key in the telephone number directly from the keypad. 11. Press and hold in the [F/W] key for one second to save the setting. 12. If you store other numbers, repeat steps 4- 10 above, using a different DTMF memory register. 13. When all required DTMF memories are filled to your satisfaction, press the PTT switch to save the settings and exit to normal operation To send the telephone number: 1. Press the [F/W] key, then press the [9(DTMF)] key to activate the DTMF Autodialer. The “MEM” indication display will appear in the display for a moment. 2. While the DTMF Autodialer is activated, first press the PTT switch, then press the numerical key ([1] through [9]) corresponding to the DTMF memory string you wish to send. Once the string begins, you may release the PTT switch, as the transmitter will be held “on the air” until the DTMF string is completed. 3. To disable the DTMF Autodialer, press [F/W]  [9(DTMF)] again. The “CODE” indication

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 46/64 Vertex Standard Co., Ltd. will appear in the display for a moment. You can change the DTMF Audodialer sending speed, using Set Mode Item 16: DT SPD. See page ?? for details. You can also set a longer delay between the time you press the numerical key (corresponding to the DTMF memory string; with PTT switch pressed) and the instant when the first DTMF digit is sent, using Set Mode Item 15: DT DLY. See page ?? for details. Miscellaneous Settings Password The VX-120/170 provides the password feature which can minimize the chance that your transceiver could be used by an unauthorized party. When the password feature is activated, the radio will ask for the four digit password to be entered when the radio is first turned on. You must enter the four digit password from the keypad. If the wrong password is entered, the microprocessor will shut down the radio automatically. To enter the password , use the following procedure: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 31: PSWD W. 3. Press the [F/W] key momentarily to display any previously-stored password. 4. Press the [F/W] key again to clear any previous password. 5. Rotate the DIAL knob to select the first digit of the desired number/letter (0-9, A, B, C, D, E (substitute for “*”), and F (substitute for “#”). 6. Press the [F/W] key to move to the next digit. 7. Repeat steps 5 and 6 to program the remaining numbers/letters of the desired password. 8. If you make a mistake, press the [] key to move back to the previous digit, then re-select the correct number/letter. 9. If your password is made up of numbers only, you may enter your password directly from the keypad. For example, to enter the “1234” as your password, press [1(SQ TYP)]  [2(CODE)]  [3(TX PO)]  [4(RPT)]. 10. When you have finished entering the password, press the PTT switch to save the new setting and exit to normal operation. R.F. Says: We recommend that you to write down the password number, and keep it in a safe place you can easily find if you forget your password.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 47/64 Vertex Standard Co., Ltd. To Activate the Password feature: 1. Press the [F/W] key, then press the [%(0)SET] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 30: PSWD. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to set this Set Mode Item to “PWD. ON.” 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. 6. If you wish to disable the Password feature, just repeat the above procedure, rotating the DIAL knob to select “PWD.OFF” in step 4 above. R.F.Says: If you forget the password number, you may turn on the transceiver by performing the “All Reset” procedure (see page ??). However, the VX-120/170 will clear the password, as well as all memories, and will restore all other settings to factory defaults. Programming the Key Assignments Default VX-120/170 Set Mode Items have been assigned (at the factory) to the [7(P1)] and [8(P2)] keys. These may be changed by the user, if you wish to assign another Set Mode Item to either or both of these keys. To change the assignment of a key’s Set Mode Item: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select the Set Mode Item which you wish to assign to the key as a Menu short-cut. 3. Press and hold in the [7(P1)] or [8(P2)] key for one second to assign the Set Mode Item to the [7(P1)] or [8(P2)] key. R.F. Says: The following Set Mode Items may not be assigned to the [7(P1)] and [8(P2)] keys. Set Mode Item 11: CW WRT Set Mode Item 17: DT WRT Set Mode Item 31: PSWD W Changing the Channel Steps The VX-120/170’s synthesizer provides the option of utilizing channel steps of 5/10/12.5/15/20/25/50/100 kHz per step, as well as an automatic step selection based on the current operating frequency (“AUTO”), any number of which may be important to your operating requirements. The VX-120/170 is set up at the factory in the “AUTO” configuration, which probably is satisfactory for most operation. However, if you need to change the

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 48/64 Vertex Standard Co., Ltd. channel step increments, the procedure to do so is very easy. 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 45: STEP. 3. Press the [F/W] key momentarily to enable adjustment of this Item. 4. Rotate the DIAL knob to select the new channel step size. 5. When you have made your selection, press the PTT switch to save the new setting and return to normal operation. Receive Battery Saver Setup An important feature of the VX-120/170 is its Receive Battery Saver, which “puts the radio to sleep” for a time interval, periodically “waking it up” to check for activity. If somebody is talking on the channel, the VX-120/170 will remain in the “active” mode, then resume its “sleep” cycles. This feature significantly reduces quiescent battery drain, and you may change the amount of “sleep” time between activity checks using the Set Mode: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 37: RXSAVE. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired “sleep” duration. The selections available are 200 ms, 300 ms, 500 ms, 1 second, 2 seconds, or OFF. The default value is 200 ms. 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. R.F. Says: When you are operating on Packet, switch the Receive Battery Saver OFF, as the sleep cycle may “collide” with the beginning of an incoming Packet transmission, causing your TNC not to receive the full data burst. TX Battery Saver The VX-120/170 also includes a useful Transmit Battery Saver, which will automatically lower the power output level when the last signal received was very strong. For example, when you are in the immediate vicinity of a repeater station, there generally is no reason to use the High Power output in order to achieve full-quieting access to the repeater. With the Transmit Battery Saver, the automatic selection of Low Power operation conserves battery drain significantly. To activate the Transmit Battery Saver: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 49: TXSAVE.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 49/64 Vertex Standard Co., Ltd. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set this Set Mode Item to “SAV. ON” (thus activating the Transmit Battery Saver). 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. Disabling the TX/BUSY Indicator Further battery conservation may be accomplished by disabling the TX indicator while transmitting and disabling the BUSY indicator while receiving a signal. Use the following procedure: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 8: BSY.LED if you wish to disable the BUSY indicator or Set Mode Item 48: TX.LED if you wish to disable the TX indicator. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set this Set Mode Item to “LED.OFF” (thus disabling the BUSY or TX lamp). 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. 6. If you wish to re-enable the TX/BUSY Indicator, just repeat the above procedure, rotating the DIAL knob to select “LED. ON” in step 4 above. Automatic Power-Off (APO) Feature The APO feature helps conserve battery life by automatically turning the radio off after a user-defined period of time within which there has been no dial or key activity. The available selections for the time before power-off are 0.5 to 12.0 hours in 0.5 hour multiple, as well as APO Off. The default condition for the APO is OFF, and here is the procedure for activating it: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 1: APO. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to select the desired time period after which the radio will automatically shut down. 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. When the APO is activated, the “TIMER” icon will appear at the upper right corner on the LCD. If there is no action by you within the time interval programmed, the microprocessor will shut

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 50/64 Vertex Standard Co., Ltd. down the radio automatically. Rotate the VOL/PWR knob counter-clockwise to the “off” position, then clockwise out of the click-stop, to turn the radio on after an APO shutdown. Transmitter Time-Out Timer (TOT) The TOT feature provides a safety switch which limits transmission time to a pre-programmed value. This will promote battery conservation by not allowing you to make excessively-long transmissions, and in the event of a stuck PTT switch (perhaps if the radio or a Speaker/Mic is wedged between car seats) it can prevent interference to other users as well as battery depletion. As configured at the factory the TOT feature is set to OFF, and here is the procedure for activating it: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 47: TOT. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set the Time-Out Timer to the desired “Maximum TX” time (between 1 and 30 minutes), or OFF. 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. R.F. Says: 1) When your transmission time is within 10 seconds of the Time-Out Timer expiration, an Alert bell will provide an audible warning from the speaker. 2) Since brief transmissions are the mark of a good operator, try setting up your radio’s TOT feature for a maximum transmission time of one minute. This will significantly improve battery life, too! Busy Channel Lock-Out (BCLO) The BCLO feature prevents the radio’s transmitter from being activated if a signal strong enough to break through the “noise” squelch is present. On a frequency where stations using different CTCSS or DCS codes may be active, BCLO prevents you from disrupting their communications accidentally (because your radio may be muted by its own Tone Decoder). The default setting for the BCLO is OFF, and here is how to change that setting: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 5: BCLO. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set this Set Mode Item to “BCL. ON” (thus activating the BCLO feature).

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 51/64 Vertex Standard Co., Ltd. 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. DCS Code Inversion The DCS system was first introduced in the commercial LMR (Land Mobile Radio) service, where it is now in widespread use. DCS is sometime referred to by its different proprietary names, such as DPL® (Digital Private Line®, a registered trademark of Motorola, Inc.). DCS uses a codeword consisting of a 23-bit frame, transmitted (subaudible) at a data rate of 134.4 bps (bit/sec). Occasionally, signal inversion can result in the complement of a code to be sent or received. This prevents the receiver’s squelch from opening with DCS enabled, as the decoded bit sequence would not match that selected for operation. Typical situations that might cause inversion to occur are:  Connection of an external receiver preamplifier.  Operating through a repeater.  Connection of an external linear amplifier. Note that code inversion does not mean that any of the above listed equipment is defective! In certain amplifier configurations, the output signal (phase) is inverted from the input. Small signal or power amplifiers having an odd number (1, 3, 5, etc.) of amplification stages may result in inversion of a transmitted or received DCS code. While under most circumstances this should not occur (amplifier designs and industry standards take this into account), if you find that your receiver squelch does not open when both you and the other station are using a common DCS code, you or the other station (but not both) can try the following: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 14: DCS.N/R. 3. Press the [F/W] key momentarily, then rotate the DIAL knob to select one of the following modes: T/RX N: Encoder, Normal; Decoder, Normal RX R: Encoder, Normal; Decoder, Reverse (Inverted) TX R: Encoder, Reverse (Inverted); Decoder, Normal T/RX R: Encoder, Reverse (Inverted); Decoder, Reverse (Inverted) 4. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. 5. Remember to restore the default setting to “T/RX N” (Encoder; Normal, Decoder; Normal) when done.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 52/64 Vertex Standard Co., Ltd. Changing the TX Deviation Level In many areas of the world, channel congestion has required that operating channels be closely spaced. In such operating environments, it often is required that operators use reduced deviation levels, so as to reduce the potential for interference to users on adjacent channels. The VX-120/170 includes a simple method of accomplishing this: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select Set Mode Item 51: WID.NAR. 3. Press the [F/W] key momentarily to enable adjustment of this Set Mode Item. 4. Rotate the DIAL knob to set this Set Mode Item to “NARROW.” In this configuration (HALF DEVIATION active), the transmitter’s deviation will be approximately ±2.5 kHz, and the received audio output level will be increased, for easier listening on the narrow signal. 5. When you have made your selection, press the PTT switch to save the new setting and exit to normal operation. R.F. Says: The “normal” setting for the deviation (when this Menu Item is set to WIDE) is ±5 kHz. Reset Procedures In the event of erratic operation of the transceiver, it is possible that data on the microprocessor may have become corrupted. While this is a highly unusual situation, the only path to recovery may involve resetting of the microprocessor. Here’s how to do this: 1. Turn the radio off. 2. Press and hold in the MONI switch (just below the PTT switch) while turning the radio on. 3. Rotate the DIAL knob to select one choice from the reset menu: F1 SETRST: Resets the Set (Menu) mode settings to their factory defaults. F2 MEMRST: Clears the Memory settings to factory defaults. F3 MB RST: Clears the Memory Bank Assignments. F4 ALLRST: Clears all memories and other settings to factory defaults. 4. Press the [F/W] key momentarily to complete the reset procedure. Cloning The VX-120/170 includes a convenient “Clone” feature, which allows the memory and configuration data from one transceiver to be transferred to another VX-120/170. This can be particularly useful when configuring a number of transceivers for a public service operation.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 53/64 Vertex Standard Co., Ltd. Here is the procedure for Cloning one radio’s data to another: 1. Turn both radios off. 2. Connect the optional CT-27 Clone Cable between the MIC/SP jacks of the two radios. 3. Press and hold in the MONI switch (just below the PTT switch) while turning the radios on. Do this for both radios (the order of switch-on does not matter). 4. Rotate the DIAL job on each radio to select to “F6 CLONE,” then press the [F/W] key momentarily. 5. The display will disappear for a moment, then the “CLONE” notation will appear on the displays of both radios when the Clone mode is successfully activated in this step. 6. On the Destination radio, press the MONI switch (“--RX--” will appear on the LCD). 7. Press and hold in the PTT switch on the Source radio; “--TX--” will appear on the Source radio, and the data from this radio will be transferred to the other radio. 8. If there is a problem during the cloning process, “ERROR” will be displayed. Check your cable connections and battery voltage, and try again. 9. If the data transfer is successful, “CLONE” will reappear on both displays. Turn both radios off and disconnect the cloning cable. You can then turn the radios back on, and begin normal operation. Set (Menu) Mode The VX-120/170 Set Mode, already described in parts of many previous chapters, is easy to activate and set. It may be used for configuration of a wide variety of transceiver parameters, some of which have not been detailed previously. Use the following procedure to activate the Set Mode: 1. Press the [F/W] key, then press the [0(SET)] key to enter the Set mode. 2. Rotate the DIAL knob to select the Set Mode Item to be adjusted. 3. Press the [F/W] key momentarily to enable adjustment of the Set Mode Item. 4. Rotate the DIAL knob to adjust or select the parameter to be changed on the Set Mode Item selected in above step. 5. After completing your selection and adjustment, press the PTT switch momentarily to save the new setting and exit to normal operation. R.F. Says: 1) Some Set Mode Items (like Set Mode Item 46: TN FRQ) require that the [F/W] key be pressed after setting of the parameter, and before exiting to normal operation. 2) Two Set Mode Item numbers (in the factory default, Set Mode Item 34: RF SQL, and 42: SKIP) will blink while selecting the Set Mode Item; this indicates that this Set Mode Item has been assigned to the [7(P1)] or [8(P2)] key of the keypad.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 54/64 Vertex Standard Co., Ltd. Set Mode Summary Set Mode Item 1 [APO] Function: Setting of the Automatic Power-Off feature. Available Values: OFF/0.5H - 12.0 H in 0.5 hour multiples Default: OFF Set Mode Item 2 [AR BEP] Function: Selects the Beep option during ARTS operation. Available Values: INRANG/ALWAYS/OFF Default: INRANG INRANG: Beeps sound only when the radio first detects that you are within range. ALWAYS: Beeps sound every time a polling transmission is received from the other station (every 15 or 25 seconds when in range). OFF: No alert beeps sound. Set Mode Item 3 [AR INT] Function: Selects the Polling Interval during ARTS operation. Available Values: 25 SEC/15 SEC Default: 25SEC Set Mode Item 4 [ARS] Function: Enables/Disables the Automatic Repeater Shift function. Available Values: ARS. ON/ARS.OFF Default: ARS. ON Set Mode Item 5 [BCLO] Function: Enables/Disables the Busy Channel Lock-Out feature. Available Values: BCL. ON/BCL.OFF Default: BCL.OFF Set Mode Item 6 [BEEP] Function: Enables/Disables the beeper. Available Values: KEY+SC/KEY/OFF Default: KEY+SC KEY+SC: The beeper sounds when you press any key, or when the scanner stops. KEY: The beeper sounds when you press any key. OFF: Beeper is disabled. Set Mode Item 7 [BELL] Function: Selects the number of CTCSS/DCS Bell ringer repetitions.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 55/64 Vertex Standard Co., Ltd. Available Values: OFF/1T/3T/5T/8T/CONT (Continuous ringing) Default: OFF Set Mode Item 8 [BSY.LED] Function: Enables/Disables the BUSY LED while the Squelch is open. Available Values: LED. ON/LED.OFF Default: LED. ON Set Mode Item 9 [CLK.SFT] Function: Shifting of the CPU clock frequency. Available Values: SFT.OFF/SFT. ON Default: SFT.OFF This function is only used to move a spurious response “birdie,” should it fall on a desired frequency. Set Mode Item 10 [CWID] Function: Enables/disables the CW identifier during ARTS operation. Available Values: TX OFF/TX ON Default: TX OFF Set Mode Item 11 [CW WRT] Function: Programs and activates the CW Identifier (used during ARTS operation). See page ?? for details. Set Mode Item 12 [DC VLT] Function: Indicates the DC Supply Voltage. Set Mode Item 13 [DCS.COD] Function: Setting of the DCS code. Available Values: 104 standard DCS codes Default: DCS.023 Set Mode Item 14 [DCS.N/R] Function: Enables/Disables “Inverted” DCS code decoding. Available Values: T/RX N, RX R, TX R, T/RX R Default: T/RX N Set Mode Item 15 [DT DLY] Function: Setting of the DTMF Autodialer Delay Time. Available Values: 50MS/100MS/250MS/450MS750MS/1000MS Default: 450MS Set Mode Item 16 [DT SPD] Function: Setting of the DTMF Autodialer Sending Speed.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 56/64 Vertex Standard Co., Ltd. Available Values: 50MS (high speed)/100MS (low speed) Default: 50MS Set Mode Item 17 [DT WRT] Function: Programming of the DTMF Autodialer. See page ?? for details. Set Mode Item 18 [EAI] Function: Enables/Disables the Emergency Automatic ID (EAI) Feature. Available Values: INT. 1M - INT.10M, INT.15M, INT.20M, INT.30M, INT.40M, INT. 50M, CON. 1M - CON.10M, CON.15M, CON.20M, CON.30M, CON.40M, CON. 50M, and OFF Default: OFF Set Mode Item 18 [ECS.CDR] Function: Setting the Receiver Pager Code for the Enhanced CTCSS Paging & Code Squelch. See page ?? for details. Set Mode Item 19 [ECS.CDT] Function: Setting the Transmitting Pager Code for the Enhanced CTCSS Paging & Code Squelch. See page ?? for details. Set Mode Item 20 [EDG.BEP] Function: Enables/Disables the Band-edge beeper while selecting the frequency via the DIAL knob. Available Values: BEP.OFF/ BEP. ON Default: BEP.OFF Set Mode Item 21 [EMG S] Function: Selects the alarm(s) utilized when the Emergency function is engaged. Available Values: EMG.BEP/EMG.LMP/EMG.B+L/EMG.CWT/EMG.C+B/EMG.C+L/EMG.ALL/OFF Default: EMG.B+L EMG.BEP: Loud “Alarm” sounds. EMG.LMP: The LCD/Keypad lamp flashes. EMG.B+L: Loud “Alarm” sounds and the LCD/Keypad lamp flashes. EMG.CWT: Transmits the Morse Code “SOS” (••• – – –•••) message on the air beginning one minute after activation of the Emergency function. EMG.C+B: Loud “Alarm” sounds and the Morse Code “SOS” (••• – – –•••) message is transmitted on the air beginning one minute after activation of the Emergency function.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 57/64 Vertex Standard Co., Ltd. EMG.C+L: The LCD/Keypad lamp flashes, and the Morse Code “SOS” (••• – – –•••) message is transmitted on the air beginning one minute after activation of the Emergency function. EMG.ALL: All of the above are activated. OFF: Disables the Emergency function. The Emergency function also cannot be engaged, by pressing and holding in the [4(RPT)] key, if this Menu is set to “OFF.” When the radio is set to the EMG.CWT, EMG.C+B, EMG.C+L, or EMG.ALL mode, the radio will be instructed to send “DE (your callsign)” after the sending of the SOS message, if your callsign is entered via Set Mode Item 10 [CWID]. Set Mode Item 22 [I NET] Function: Selects the Internet Link Connection mode. Available Values: INT.OFF/INT.COD/INT.MEM Default: INT.OFF INT.OFF: Disables the Internet Link Connection mode. INT.COD: Sets up the Internet Link Connection mode for WIRESTM access. INT.MEM: Sets up the Internet Link Connection mode for other (DTMF string) Internet Link System access. Set Mode Item 23 [INT CD] Function: Selects the Access Number (DTMF digit) for WIRESTM operation. Available Values: CODE 0 - CODE 9 Default: CODE 1 Set Mode Item 24 [INT MR] Function: Selects the memory register for an Access Number (DTMF code) for non-WIRESTM Internet Link System access. Available Values: d1 - d9 Default: d1 Set Mode Item 25 [LAMP] Function: Selects the LCD/Keypad Lamp mode. Available Values: KEY/CONT/OFF Default: KEY KEY: Illuminates the Keypad/LCD lamp for five seconds when you rotate the DIAL knob or press the keypad or any switch (except PTT switch). This is the factory-programmed default setting. CONT: Illuminates the Keypad/LCD lamp continuously. OFF: Disables the Keypad/LCD lamp. Set Mode Item 26 [LOCK]

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 58/64 Vertex Standard Co., Ltd. Function: Selects the Control Locking lockout combination. Available Values: LK KEY/LKDIAL/LK K+D/LK PTT/LK P+K/LK P+D/LK ALL Default: LK K+D Note: “K” = “Key;” “D” = “Dial;” and “P” = “PTT.” Set Mode Item 27 [M/T-CL] Function: Selects the MONI key (just below the PTT switch) function. Available Values: MONI/T-CALL Default: Depends on the transceiver version. MONI: Pressing the MONI key causes the Noise/Tone Squelch to be over-ridden, allowing you to listen for weak (or non-encoded) signals. T-CALL: Pressing the MONI key activates a 1750-Hz burst tone, used for repeater access in many countries (especially in Europe). Set Mode Item 28 [NAME] Function: Toggles the display indication between “frequency” and the channel’s “Alpha/Numeric Tag.” Available Values: FREQ/ALPHA Default: FREQ Set Mode Item 29 [NM WRT] Function: Stores Alpha-Numeric “Tags” for the Memory channels. See page ?? for details. Set Mode Item 29 [PAGER] Function: Enables/disables the Enhanced CTCSS Paging & Code Squelch function. Available Values: OFF/ON Default: OFF Set Mode Item 30 [PAG.ABK] Function: Enables/disables the Answer Back function of the Enhanced CTCSS Paging & Code Squelch. Available Values: ABK.OFF/ABK. ON Default: ABK.OFF Set Mode Item 30 [PSWD] Function: Enables/disables the Password feature. Available Values: PWD.OFF/PWD. ON Default: PWD.OFF Set Mode Item 31 [PSWD W] Function: Stores the password.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 59/64 Vertex Standard Co., Ltd. Available entries are 0-9, A, B, C, D, E (substitute for “*”), and F (substitute for “#”) Set Mode Item 32 [RESUME] Function: Selects the Scan Resume mode. Available Values: BUSY/HOLD/TIME Default: BUSY BUSY: The scanner will hold until the signal disappears, then will resume when the carrier drops. HOLD: The scanner will stop when a signal is received, and will not restart. TIME: The scanner will hold for the five seconds, then resume whether or not the other station is still transmitting. Set Mode Item 33 [REV/HM] Function: Selects the function of the [REV(HOME)] key. Available Values: <REV>/<HOME> Default: <REV> <REV>: Pressing the [REV(HOME)] key reverses the transmit and receive frequencies during repeater operation. <HOME>: Pressing the [REV(HOME)] key instantly recalls a favorite “Home” channel. Set Mode Item 34 [RF SQL] Function: Adjusts the RF Squelch threshold level. Available Values: S-1/S-2/S-3/S-4/S-5/S-6/S-8/S-FULL/OFF Default: OFF Set Mode Item 35 [RPT.MOD] Function: Sets the Repeater Shift Direction. Available Values: RPT.OFF/RPT. -/RPT. + Default: Depends on the transceiver version, as well as the setting of Set Mode Item 4 [ARS]. Set Mode Item 36 [PRI.RVT] Function: Enables/disables the Priority Revert feature. Available Values: RVT.OFF/RVT. ON Default: RVT.OFF See page ?? for details. Set Mode Item 38 [RX MOD] Function: Selects the receiving mode. Available Values: AUTO/FM/AM Default: AUTO (Mode automatically changes according to operating frequency) Set Mode Item 37 [RXSAVE]

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 60/64 Vertex Standard Co., Ltd. Function: Selects the Receive-mode Battery Saver interval (“sleep” ratio) Available Values: 200 MS(1:1)/300 MS(1:1.5)/500 MS(1:2.5)/1 S(1:5)/2 S(1:10)/OFF Default: 200 MS Set Mode Item 38 [S SRCH] Function: Selects the Smart Search Sweep mode. Available Values: SINGLE/CONT Default: SINGLE SINGLE: The transceiver sweeps the current band once in each direction, starting on the current frequency. All channels where activity is present (up to 15 in each direction) are loaded into the Smart Search memories. Whether or not all 31 memories are filled, the search stops after one sweep in each direction. CONT: The transceiver makes a sweep in each direction as with the “SINGLE” mode, but if all 31 channels are not filled after the first sweep, the radio continues sweeping until they are all filled. Set Mode Item 39 [SCN MD] Function: Selects the Memory Scan channel-selection mode. Available Values: ONLY/MEM Default: MEM ONLY: The scanner will only scan channels that are flagged (Preferential Scan List). MEM: The scanner will “skip” the flagged channels during scanning. Set Mode Item 40 [SCN.LMP] Function: Enables/Disables the Scan lamp while paused. Available Values: ON/OFF Default: ON Set Mode Item 41 [SHIFT] Function: Sets the magnitude of the repeater Shift. Available Values: 0.00 - 99.95 MHz (50 kHz increments) Default: Depends on the operating band and transceiver version. Set Mode Item 42 [SKIP] Function: Selects the Memory Scan “Skip” channel-selection mode. Available Values: OFF/SKIP/ONLY Default: OFF SKIP: The scanner will “skip” the flagged channels during scanning. ONLY: The scanner will only scan channels that are flagged (Preferential Scan List). OFF: All memory channels will be scanned (the “flag” will be ignored).

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 61/64 Vertex Standard Co., Ltd. Set Mode Item 43 [SPLIT] Function: Enables/Disables split CTCSS/DCS coding. Available Values: SPL.OFF/SPL. ON Default: SPL.OFF When this Set Mode Item is set to “SPL. ON,” you will see the following additional parameters after the “DCS” parameter while configuring Set Mode Item 44: SQL.TYP. D: DCS Encode only. T DCS: Encodes a CTCSS tone and Decodes a DCS code. D TSQL: Encodes a DCS code and Decodes a CTCSS tone. Select the desired operating mode from the selections shown above. Set Mode Item 44 [SQL.TYP] Function: Selects the Tone Encoder and/or Decoder mode. Available Values: OFF/TONE/TSQL/REV TN/DCS/ECS Default: OFF TONE: CTCSS Encoder TSQL: CTCSS Encoder/Decoder REV TN: Reverse CTCSS Decoder (Mutes receiver when matching tone is received) DCS: Digital Coded Encoder/Decoder ECS: Enhanced Paging & & Code Squelch Note: See also Set Mode Item 43: SPLIT regarding additional selections available during “Split Tone” operation. Set Mode Item 45 [STEP] Function: Setting of the synthesizer steps. Available Values: 5/10/12.5/15/20/25/50/100 kHz, or AUTO Default: AUTO (Step automatically changes according to operating frequency.) Set Mode Item 46 [TN FRQ] Function: Setting of the CTCSS Tone Frequency. Available Values: 50 standard CTCSS tones Default: 100.0 Hz Set Mode Item 47 [TOT] Function: Setting of the TOT time Available Values: 1MIN - 30MIN or OFF Default: 6MIN (minutes) The time-out timer shuts off the transmitter after continuous transmission of the programmed time.

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 62/64 Vertex Standard Co., Ltd. Set Mode Item 48 [TX.LED] Function: Enables/Disables the TX LED while the radio is transmitting. Available Values: LED. ON/LED.OFF Default: LED. ON Set Mode Item 49 [TXSAVE] Function: Enables/Disables the Transmitter Battery Saver. Available Values: SAV.OFF/ SAV. ON Default: SAV.OFF Set Mode Item 50 [VFO.SPL] Function: Enables or disables the “VFO Split” operation. Available Values: VSP.OFF/VSP. ON Default: VSP.OFF Set Mode Item 54 [VFO.BND] Function: Enables or disables the VFO band edge limiting for the current band. Available Values: BAND/ALL Default: BAND BAND: When the VFO frequency reaches the high band edge of the current band, the VFO frequency will jump to the low band edge of the current band (or vice versa). ALL: When the VFO frequency reaches the high edge of the current band, the VFO frequency will jump to the low band edge of the next band (or vice versa). Set Mode Item 51 [WID.NAR] Function: Select Wide (±5 kHz) or Narrow (±2.5 kHz) TX Deviation. Available Values: WIDE/NARROW Default: WIDE Note: If “Narrow” is selected, the receiver audio level is increased slightly to compensate for the reduced deviation. The receiver IF filter bandwidth is not changed via this setting. Set Mode Item 52 [WX ALT] Function: Enables/Disables the Weather Alert Scan feature. Available Values: ALT.OFF/ALT. ON Default: ALT. OFF Specifications General Frequency Ranges: RX 137-174 MHz TX 144-146(148) MHz

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 63/64 Vertex Standard Co., Ltd. Channel Steps: 5/10/12.5/15/20/25/50/100 kHz Frequency Stability: ±5 ppm @ 14º - 122º F (–10° to +50° C) Repeater Shift: ±600 kHz Emission Type: F2 , F3 Antenna Impedance: 50  Supply Voltage: Nominal: 7.2 V DC (Negative Ground) Operating: 6.0 ~ 16.0 V DC (EXT DC Jack) 11.0 ~ 16.0 V DC (EXT DC Jack with Charging) Current Consumption: 200 mA (Receive) (Approx. @7.2 V) 45 mA (Standby, Saver Off) 19 mA (Standby, Saver On) 0.8 mA (Auto Power Off) 1.3 A (5 W TX) Operating Temperature: –4º to 140º F (–20 °C to +60 °C) Case Size: 2.3” (W) x 4.7” (H) x 1.2” (D) (58 x 120 x 30.5 mm) (W/O knob, antenna, & belt clip) Weight: 13.4 Oz (380 g) with FNB-83, antenna, and belt clip Transmitter RF Power Output (@7.2 V): 5.0 W (High) / 2.0 W (Middle) / 0.5 W (Low) Modulation Type: Variable Reactance F2D, F3E Maximum Deviation: ±5.0 kHz (F2D, F3E) Spurious Emission: At least 60 dB down (@ High and Middle power) At least 40 dB down (@ Low power) Microphone Impedance: 2 k Receiver Circuit Type: Double-Conversion Superheterodyne Intermediate Frequencies: 1st: 21.7 MHz 2nd: 450 kHz Sensitivity: 0.2 µV for 12 dB SINAD (137-140 MHz) 0.16 µV for 12 dB SINAD (140-150 MHz) 0.2 µV for 12 dB SINAD (150-174 MHz) Selectivity: 12 kHz/35 kHz (–6 dB /–60 dB)

FCC ID: K6620223X20 IC ID: 511B-20223X20 VX-120/170 OPERATING MANUAL 64/64 Vertex Standard Co., Ltd. AF Output: 400 mW @ 16  for 10 % THD (@ 7.5 V) Specifications are subject to change without notice, and are guaranteed within the 144 MHz amateur band only. Frequency ranges will vary according to transceiver version; check with your dealer.