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| Document ID | 65787 |
| Application ID | ldn9sQe+OpTfLweHoumv6g== |
| Document Description | 8 |
| Short Term Confidential | No |
| Permanent Confidential | No |
| Supercede | No |
| Document Type | User Manual |
| Display Format | Adobe Acrobat PDF - pdf |
| Filesize | 62.32kB (778997 bits) |
| Date Submitted | 1999-10-22 00:00:00 |
| Date Available | 2000-02-02 00:00:00 |
| Creation Date | 2001-05-24 22:48:51 |
| Producing Software | Acrobat Distiller 4.0 for Windows |
| Document Lastmod | 2001-05-24 22:49:01 |
| Document Title | 65787.pdf |
| Document Author: | jsoscia |
FCC ID: MGPCBS2100 APPENDIX 5 OPERATING MANUAL OPERATING MANUAL (TWENTY-FIVE (25) PAGES) FOLLOWS THIS SHEET OPERATING MANUAL FCC ID: MGPCBS2100 APPENDIX 5 OPERATING MANUAL CBS~2100 40-Channeis Citizen Band Radio TABLE OF CONTENTS ............................................................................................. PAGE REVISION NOTES: ................................... INTRODUCTION . THE CB STOR SPECIFICATIONS .. GERNERAL,... T SMITTER REC IVER ...... INST LATIO LO TION..., CONNECTIONS ELECTRICAL NOISE INTERFERENCE ANTENNA PA SPEAKER ........... LOCATION OF CONTROLS. OPERATION ..................... CONT OL FUNCTIONS FR NT PANEL. REAR PANEL OPERATION PROCEDU OPERATING PROCEDURE TO TRANSMIT . FREQUENCY RANGE ........................... SINGLE SIDE BAND (SSE) RECEPTIO COMPANDER OPERATION 10 CODES . ..................... 10 CODES AND THEIR MEANING A FEW RULES THAT SHOULD BE Gap/En MAINTENANCE AND ADJUSTMENT ........ ....... ALTERNATE MICROPHONES AND iNSTALLATION WARRANTY .................................................................................. .,,,.,.,..,.,. E-Mail Address: servims@wirelessmarkeling.com ................................................ Revision Nam: Revision 0 First Issue Y.O. Leung 1 September 1999 Vilimiul M'kefing Corporation ‘ 1212, Remingmn Reid, Schlumbug. IL8H73, USA Revision 0 PM 1 of25 ,4________________________—_-—-—-—-— OPERATING MANUAL 0552100 40—Channels Citizen Band Radio lNTRODUCTlON Congratulations on your purchase of the CHEROKEE CBS-2100 Citizen Band Single Side Band Base Station. Your CHEROKEE radio is designed to provide trouble-free service and advanced user features to make it the premier choice in radio communications. THE CB STORY The Citizens Band lies between the short-wave broadcast and 10-rneter Amateur radio bands. and was established by law in 1949. The Class D two-way communications service was opened in 1959. (CB also includes a Class A citizen band and Class C remote control frequencies.) FCC regulations permit only “transmissions" (One party to another) rather than “broadcast“ (to a wide audience). Thus advertising is not allowed on CB Channels because that is “broadcasting”. ll WARNING N All transmitter adjustments other than the front panel controls should be performed by or under the immediate supervision and responsibility of a person certified as technically qualified to perform transmitter maintenance and repair duties In the private land mobile services and fixed services by an organization or committee representative of users in those services. Replacement or substitution of transistors, regular diodes or other parts of a unique nature, with parts other than ”lose recommended by Cherokee Electronics, may cause violation of the technical regulations of Part 95 of the FCC Rules, or violation of Type Acceptance requirements of Part 2 of the Rules. LICENSING Citizens Band (CB) Radio operators are no longer required to obtain a FCC license to operate their 08 equipment or provide station identification. Nevertheless, an operator of a CB radio station Is still required to comply with the communication act and with the rules of CB Radio Operation. Vililetfls Marketing Corporation , 1212, Remington Reed. Schaunitmrg, 160173. USA Revision 0 Page 2 of 25 OPERATING MANUAL SPECIFlCATlONS CBS-2100 40-Channels Citizen Band Radio GERNERAL Frequency Range: Frequency Control: Frequency Tolerance: Frequenm/ Stability: Operating Temperature Range: Mioroptwne: Input Voltage DC or AC: Current Consumption (AC 115V Only): Current Consumption (DC 13.5V From: the DC Pruner Jack Only) Size: Weight: Antenna Connectorz New PM Cwnter: Power Output: Modulation (AMISSB): Inter-modulation Distortion: SSE Carrier Suppression: Unwanted Sldeband' Frequency Response: Output Impedance: Output Indicators: Sensitivity: Seledivity: Image Rejection: IF Frequency: Adjacent Channet Rejection: RF Gain Coma: Automatic Gain Control (AGC): Squelch: Clarifler Range ANLL Noise Blanker: Audio Output Power: Audio Frequency Response: Built-in Loudspeaker: External Loudspeaker (Not Supplied): 26.965MHZ to 27.40sz (40 Clnnnels) Phase Locked Loop (PLL) Synthesizer 0.0094 0.001% -20 Degrees F to +120 Degrees F Plug-in Dynamic; with push to talk switdt & coiled cord 13.8V DC nomind, 15.9V Mel, 11.7V Min (DC Power Jack) AC 1 10-120V or 220-240V 50/60 Hz Selectable (AC Jadt) 05 Amps Max Cont'nuous, 3A surge Transmit: AM full modulation. 2.4 Amps Max. Transmit: SSE 12-Watts PEP Output. 3 Amps Max Receive: Squelohed, 0.8 Amps Max Receive: Maximum Audio Oinput. 1.0 Amps Max 6-3IB' (Height) x 19” (Vtfidlh) x 13" (Depth) 1 6.5 lbs UHF, 50239 RewivedSlgnd Maa,TXRFOmp|JlPowaartdSVVRMeter 5dig't7seginthEDdisuaysuansrnilmehlespmtrequency TRANSMlTTER AM: 4Wetts, SSS: 12 Watts PEP Maximum High and Low Level Class B. Amplitude Modulation $93: 3'“ order, more than —25dB sea: 5‘" order. more than we 55dB 5065 450-25leHZ 50 ohms. unbalanced. Meter shows relative RF output power and SNR Transmit LED glows red when transmitter is in operation SSE:0.:5uV1or10dB(S+N)/N atgreaterttun 0.5Wats audio outptl AM: 1.0uV for 10dB (S+N)/N at greater than 0.5 Walt: autio output. 6113 at 3KHz, 50dE at 9KHz eodB AM: 10.695MHz first IF. 455m: 2“1 lF SSB: 10.695MH1 4265 at 10KH1 45dB adjustable tor optimum signal reception Less than 10dB change in audio output lor inputs from 1D to 100,000uV. Adiustable; threshold 0.5uV Coarse: +IA 5KHz Fine: +I- 1KHz (TX/RX) Switchable RF Type 4 Watts into 8 ohms Max. 300 to 2300 Hz B olvns. 4W round 8 ohms; disable internal speaker when connected. Vtflreieu Ma'ltetlng Ca'pcrfliw . 1212, Remlngon Rood, Smwmburg, |L60173. USA Revision 0 Page3 of % OPERATING MANUAL CBS—2100 40-Channels Citizen Band Radio lNSTALLATION LOCATION Plan the location of the Base Station before starting the installation. In selecting a location, two basis factors shall be considered: - Easy access to a 120VAC, or 13.8VDC Power Source. - Convenient for mnning the antenna cable to a base or mobile antenna. - Good ventilation. Do not block the ventilation fan at the back of the Base Station. - Avoid installing the base station or antenna near noise sources (eg. computer, fluorescent lamp or high voltage power Iines...etc) CONNECT|0NS The CBS-2100 Base Station is designed to be installed for desktop operation. 1. After you have determined the most convenient location, connect the end of the antenna cable to the receptacle of antenna connector on the rear panel. Make sire the antenna connector has the proper type PL-259 plug to connect to the radio. Ensure that the antenna plug is screwed in tightly. 2. For AC operation, connect the supplied AC cord to between the AC connector of the base station and the wall outlet in a household or an office. Make sure that the DC jumper cable at the back of the radio is connected property. For DC operation, connect the supplied DC card, with the fused red wire to +13.BV DC source (a car battery or a DC Power Supply), and the black wire to 0V (Ground) respectively. If a longer DC cable is required for the installation, use heavy gauge cable and keep the cable length to the minimum to avoid excessive voltage drop during operation. ELECTRICAL NOISE INTERFERENCE Use of a mobile receiver at low signal level is limited by the presence of electrical noise. The primary source of noise in base station installation is from the fluorescent lamps, TV, Computer and other digital devices in the household or in the office. Under most operating conditions, when signal level is adequate, the background noise does not present a serious problem. Even though the transceiver has ANL and NB controls, in some cases the electrical noise interference may be high enough to significantly effect the performance of the radio communications. The electrical noise may come from several sources. Many possibility exits and it require different solutions to reduce the noise level. Ms Marketing Corporation, 1212, Remingm Road, Schaurrburg, ILHJ173, USA Revision 0 Pm4 if 25 .w OPERATING MANUAL CBS-2100 40-Channels Citizen Band Radio ANTENNA The base station will have peak performance when an effective antenna system is used. The radio would use any type of 27MHz base station antenna at 50 Ohms impedance. A ground plane vertical antenna will provide the most uniform coverage to all directions. For point to point operation where the location of both base stations are fixed. a directional bean will usually increase the communication range since this type if antenna concentrates transmitter power in a single direction. Antenna height is an important factor when maximum range is desired. The higher the antenna height, the longer is the talk range. Keep the antenna clear of surrounding structures, power lines or foliage. FCC regulates base station antenna height to 60 feet above the ground when using a tower. mast or pole. and no higher than 20 feet above an existing structure. There are also local laws limiting the antenna height or even operation of the radio near airports and military installations. Please contact your nwrest Federal Communications Commission office for rules affecting your operating area. When installed in a boat, the base station will not operate at maximum efficiency without a ground plane. unless the vessel has a steel hull. Before installing the transceiver in a boat, consult your dealer for information regarding an adequate grounding system and prevention of electrolysis between fittings in the hull and water. CAUTION: Protect your property from lightning strike. Always connect the ground shield of the antenna cable and the metal case of the equipment to an effective ground point using heavy gauge grounding cables. Use lightning rods to protect the antenna from direct strike and arrester devices along the antenna cable to protect the base station. Whale“ Mahding Corporation , 1212. Remington Road, Schaumburg, ILSOln. USA Revision 0 Fae 5 of 25 OPERATING MANUAL CBS-2100 40—Channels Citizen Band Radio » TUNING THE ANTENNA FOR OPTIMUM SWR Since there is such a wide vanity of base and mobile antennas, this section will strictly conoem itself to the various types of mobile adjustable antennas. However, the same concept could be applied in tuning base station antenna. Because the antenna length is directly related to the channel frequency, it must be tuned to resonate optimally on all 40 channels of the transceiver. CH1 requires a longer antenna than CH40. because it is lower in frequency. Due to the various methods of adjusting antennas for proper SWR, we have chosen what we think is the optimum method. ll WARNING ll CONTINUOUS OPERATION OF THIS TRANSMITTER WITH GREATER THAN 4:1 VSWR ANTENNA MISMATCH MAY RESULT IN RF AMPLIFIER DAMAGE A. Antenna with adjustment screws (set screws) 1. Starts with the antenna extended and tighten the set screw tight enough so that " the antenna can be Iightty tapped with yourfinger for easy adjustment. 2. Set your transceiver to CH20. Press PTT (push-to-talk) switch, and tap the antenna shorter. The SWR meter will show a lower reading each time the antenna is tapped. By continuing to shorten the antenna you will notice the SWR reading will reach a lowest point and than start to rise again, this means the optimum tuning being pressed for center operating frequency of your transceiver. B. Antennas which must be cut to proper length 1. Follow the same procedure as above, but adjust the length by cutting in 1/8 inch inuements until a good match is obtained. 2. Be very careful not to out too much at one time, as once it is cut, it can no longer be lengthen. 3. The whip is easily cut by filing a notch all the way around and breaking the piece off with pliers. '- TIPS FOR ANTENNA ADJUSTMENT - If you have difficulties in adjusting your antenna, check the following: Wrdess Ma‘kflilg Corporation , 1212. Remington Rood, Schaunbmg, |L60173, USA Revillon 0 Pm 5 if 25 OPERAT|NG MANUAL CBS-2100 40-Channels Cifimn Band Radio Make sure all the antenna cables and connectors are property connected Make sure the antenna base is grounded. Check your coaxial cable routing to make sure it is not pinched or damaged. Try a different location to install. Stay away from large metal objects when adjusting. Such as metal telephone or light poles, and fences, etc. 55.097? EXTERNAL SPEAKER The external speaker jack “EXT. SPK' on the rear panel, is used for remote receiver monitoring. The external speaker should have 8 ohms impedance and be able to handle at least 4 watts. When the external speaker is plugged in, the internal speaker is disconnected. NOTE: THERE WILL BE NO AUDIO OUTPUT FROM THE "EXT SPK' JACK WHILE IN PA MODE OF OPERATION PA SPEAKER The FA speaker jack “PA SPK' on the rear panel, is to be connected to e Loudspeaker outside of the vehicle, so that it could be used as a “Loud Hailer' to broadcast your speech to someone nearby when the PA feature is selected on the radio. The PA speaker should have 8 ohms impedance and be able to handle at least 4 watts. Use weatherproof “Horn" type loudspeakers to get best results. NOTE: THE RADIO WILL NEITHER TRANSMIT NOR RECEIVE WHEN THE “PA" FETURE IS SELECTED Vlhrflss Ma‘kflim Corporltion , 1212, Remington Rood, Schaumbug, “50173. USA Rev-ion D Pm 7 of 25 OPERATING MANUAL CBS-2100 Ao-channels Citizen Band Radio LOCATION OF CONTROLS 0000000 0000000 0000000 [1000000 1. mo CONNECTOR 13. POWER ONIOFF 24. DC POWER JACK 2. CAIJBRATE (swm 13a. POWER INDICATOR 25. EXT SPEAKER JACK 3. SUPER CBS 14. SWRICAL 26. PA SPEAKER JACK 4, MIC GAlN 15. NBIANL ONIOFF 27. ANTENNA CONNECTOR 5. RF GAIN 16. cos ONIOFF 23. DO WE CABLE 5. CHANNEL SELECTOR 17. ROGER BEEP ONIOFF 29. ooouNG FAN 7. MODE SELECTOR 1s, RECElVER s-METER 30. AC POWER INPUT 8. VOULUME 19. RF Pan/Elam METER 31. AC VOLTAGE SELECT 9. SQUELCH 20. CHANNEL mspuw 32. F_R_E_Q COUNTER OIP 10. CIARIFIER (FINE) 21. FREQUENCY COUNTER 33} LINE o/p JACK 11. CLARIFIER (CAORSE) 22. MODE lNDICATORS 34, AC 110ng max 12. HEADPHONE JACK 23. BUILT-lN SPEAKER Wow-aw, 1212.mmRa-d,5cnm,m1n USA mun-o Mufifi OPERATING MANUAL CBS-2100 40Channels Citizen Band Radio OPERATION CONTROL FUNCTIONS FRONT PANEL 1. MICROPHONE JACK 4-pin, standard screw—on microphone connection. Front panel mounted for easy access. Must be connected to transmit. CALIBRATE (SWR) in order to achieve maximum radiated power and the longest range, it is important that your antenna be property adjusted and matches to the receiver. The Built-in SWR (Standing Wave Ratio) meter lets you easily measure the antenna condition. To operate this function, connect the antenna to the transceiver RF output connector. Select a channel near the middle of the band such as CH20 or the channel you plan to use most frequently. Turn the power on, set mode switch to AM, and set the meter function switch to the CAL position. Press and hold the microphone push to talk button and using the SWR CAL control, adjust the meter to read the CAL position indicated on the meter. Then, im‘thout releasing the microphone button, switch the meter function switch to SWR position and read the SWR indicated. The lower the figure, the better, with 1 being ideal. Generally speaking, readings up to 3 is acceptable, but over 3 indicate that you are losing radiated power and antenna adjustment is required. SUPER cDS / Auto CBS The CBS-2100 is equipped with double stage “Clear Drive” voice compression circuit for transmitter audio to give that punching sound. This control allows you to adjust the “compression ration“ of the voice circuit to get optimum effect. When turned fully anti-clockwise to Auto CBS. The unit will use a predetermined compression ratio for Clear Drive. MIC GAIN Adjust the microphone gain in the transmit and PA modes. This controls the gain to extent that full talk power is available several inches away from the microphone. RF GAIN Used to reduce the gain of the RF amplifier under strong signal condition. CHANNEL SELECTOR This svw'tch selects any one channel desired. The selected channel appears on the LED readout directly above the Channel Selector Knob. MODE (PAIAMILSBIUSB) SELECTOR Vin-elat- Mlketing Cumim , 1212. Remwgofl Rom, sdmmburg. 160173, USA Revision 0 P3939 pt 25 OPERATING MANUAL CBS-2100 40-Channels Citizen Band Radio This switch is used to select PA (public address), AM (Amplitude Modulation), LSB (Lower Side Band) and USB (Upper Side Band) operation. 8. VOLUME To set the desired listening level. During normal operation, the VOLUME control is used to adjust the output level obtained either at the transceiver speaker or the external speaker, if used. 9. SQUELCH This control is used to cut off or eliminate receiver background noise in the absence of an incoming signal. For maximum receiver sensitiw'ty it is desired that the control be adjusted only to the point where the receiver background noise or ambient background noise is eliminated. Turn fully counterclockwise then slowly clockwise until the receiver noise disappears. Any signal to be received must now be slightly stronger than the average received noise. Further clockwise rotation will increase the threshold level, which a signal must overcome in order to be heard. Only strong signals will be heard at a maximum clockwise setting. 10. CLARIFIER (FINE) Allows variation of the received frequency 2.5KHz above and below the fixed CB channels for Single Side Band operation. 11.CLARIFIER (CAORSE) Allows variation of the received frequency 5KHz above and below the fixed CB channels . Although this control is intended primarily to tune in SSB signals. it may also be used to optimize AM signals by tuning out interference signals in the adjacent channels. 12. HEADPHONE JACK Allows the user to use audio headphones to listen to the communications. 13. POWER ONIOFF Turns the AC Power ON and OFF. 13a. POWER INDICATOR Glows red when AC Power is ON. There are also illumination on the meters and other LED indicators when Power is turned ON. 14. SWRICAL SELECTOR This switch controls the operating mode of the RFISWR indicator meter. When calibrating the SWR meter, this selector shall be put to CAL position. When reading SWR alter calibration, the selector shall be put to SWR position. 15. NB/ANL ONIOFF SWITCH This switch is used to select NB/ANL noise cancellation circuits for received signals. ANL (Automatic Noise Limiter) turns on the noise reduction circuit to “first“ Mug Corptrflinfl , 1212, Remirqon Road, Sammburg. “30173. USA Revision 0 Page 10 (125 OPERATING MANUAL CBS-2100 40-Channels Citizen Band Radio improve the sound of the incoming transmission, and NB (RF Noise Blanker) is very effective for repetitive impulse noise such as ignition interference. 16.“CLEAR DRIVE” SWITCH (CDSIOFF) This switch is used to enable the “Clear Drive” audio compander circuit of the radio to provide clear and low noise communications between similarly equipped units 008 — Switches on the compander on the transmit and receiving sections of the radio to enhance voice clarity. The effect is more prominent in SSB operation. OFF - Normal CB Operation without using the Compander. 17. ROGER BEEP SWITCH This allow the user to activate the “Roger Beep" to indicate the end of a transmission, so that others could use the channel immediately. 18. REVEIVED SIGNAL METER indicates relative signal strength of the received signals. 19. RF POPWERISWR METER Indicates RF output power level and SWRISWR calibration levels. 20.CHANNEL DISPLAY Double digit LED display indicates the selected channel you wish to operate on. 21,FREQUENCY COUNTER Monitors your transmit and receian frequencies — especially useful in SSB operation. 22. MODE INDICATOR LED lights indicating the mode of operation selected by the user. 23. BUIL:T-IN SPEAKER 8 Ohms 4 Watts built-in Loudspeaker for comfortable listening. erdfl Mains Cm , 1212, Ranirqton Road, Salmburg, IL60173, USA Ruffian 0 Poge 11 d 25 OPERATING MANUAL CBS-2 IOO 40—Channels Citizen Band Radio REAR PANEL 24. DC POWER CONNECTOR Accepts the DC Jumper cable from the Built-in AC Power supply, or standard DC Power supply cable with built-in fuse (4 Amps) shipped with the radio. Connects to 13.8V DC Power supply. 25. PA SP Accepts 4 to 8 Ohms, 5 Watts PA loudspeaker, activates when PA mode is selected, 26, EXT . SP Accepts 4 to 8 Ohms, 5 Watts external loudspeaker. When external loudspeal(er is connected to thisjack, the built-in loudspeaker is disconnected automatically. 27. ANTENNA CONNECTOR Accepts type PL-259 RF plug. To be connected to a 27MHz 50 Ohms antenna through a 50 Ohms coaxial cable. 28. DC JUNIPER CABLE Connects between the built-in AC Power Supply and the radio for AC operation, 29 COOLING FAN Ventilation for the AC Power supply, will turn when AC power is supplied. 30. AC POWER INPUT Connect the supplier AC cable between this input socket and the household or otfice AC Power Outlets 3l AC VOLTAGE SELECTOR Select between ll SVAC and 220V AC - USE ll 5V AC in the USA. 32 FREQUENCY COUNTER OUTPUT (RCA Type) Allows the user to connect a more precision external frequency counter to read theoperation frequency of the radio (NOTE: Intm'nal Frequency Counter resolution is up to l KHz), Please note that the output frequency is 10.695Mllz below the actual working frequency. 33 LINE OUTPUT JACK (RCA Type) Allows the user to connect headphones or speakers in a remote location. 34 AC POWER OUTPUT - Not used Wilda MadraingCorpomim, 1212,Reminglon Rood, Schmnlmrg, mom, USA Revision 0 Pup 12 outs OPERATING MANUAL CBS—2100 40-Channels Citizen Band Radio OPERATION PROCEDURE TO RECEIVE 1. wflewsww 9. Be sure that power supply, microphone and antenna are properly connected before turning on the radio. Turn the radio ON by rotating the Volume control clockwise. Select desire mode of operation (PA-AM-USB—LSB). Select desire channel to operate. Turn the RF gain control fully clockwise for maximum gain. Adjust the squelch control to hear the background noise. Adjust volume control for a comfortable listening level. Re—adjust squelch control clockwise until the background noise JUST disappeared (when there is no activities on the channel). Leave the squelch control at this setting. The receiver will remain quiet until a signal is received. Do not advance the control too tar, or some of the weaker signals will not be received. When receiving SSB signals, adjust the clarifier control to clarify the received signals. 10. Re-adjust the RF Gain control to get best received signal to noise performance when operating in Clear Drive (CD). OPERATING PROCEDURE T0 TRANSMIT ll Caution ll Be sure a suitable antenna is properly connected to the radio before transmitting. Prolonged transmitting without an antenna or a poorly matched antenna could cause damage to the transmitter. 1. 2. The radio is properly set up for receive as in the previous paragraph. Set the Mic gain control fully clockwise Listen on the channel to ensure that it is clear, hold the microphone two inches from the mouth and speak clearly in a normal voice. The RF meter will indicate relative power output while you are transmitting. Wireless Mark-ting Capudim , 1212. flamingo" ROM. Sch-umburg. 160173, USA Ramon 0 Pug 13 d 25 OPERATING MANUAL CBS-2100 40-Channels Citizen Band Radio FREQUENCY RANGE The CBS-2100 transceiver represents one of the most advanced mobile radio in the Citizens Radio Sen/ice. This unit features advanced Phase Lock Loop (PLL) circuitry providing complete coverage of all 40 channels as shown below. CB Channel Freq. CB Channel Freq. Channel in MHz Channel in MHz 1 26.965 21 27.215 2 26.975 22 27.225 3 26.985 23 27.255 4 27.005 24 27.235 5 27.015 25 27.245 6 27.025 26 27.265 7 27.035 27 27.275 3 27.055 28 27.285 9 27.065 29 27.295 10 27.075 30 27.305 11 27.085 31 27.315 12 27.105 32 27.325 13 27.115 33 27.335 14 27.125 34 27.345 15 27.135 35 27.355 16 27.155 36 27.365 17 27.165 37 27.375 18 27.175 38 27.385 19 27.185 39 27.395 20 27.205 40 27.405 SINGLE SIDE BAND (SSB) RECEPTION There are three types of signals presently used for communications in the Citizens Band: AM, USB and LSB. When the mode switch on your radio is placed in the AM position, only standard double sideband, full carrier signal will be detected. An SSB signal may be recognized while in the AM mode by its characteristic "Donald Duck” sound and the inability of the AM detector to produce intelligible output. The USB and LSB modes will detect upper sideband and lower sideband respectively. and standard AM signals. SSB reception differs from standard AM reception in that SSB receiver does not require a carrier or opposite sideband to produce an intelligible signal. A signal sideband transmitted signal consists only of the upper or the lower side band and no carrier is transmitted. The elimination of the carrier from the AM signal helps to vthdess Markuing Corporation, 1212, Remington Road, Sohoumburg, ILm173. USA Raisin" 0 Page 14 d25 OPERATING MANUAL CBS~2100 4&Channels Citizen Band Radio eliminate the biggest cause of whistles and tones heard on channels which make even moderately strong AM signals unreadable. Also, SSB takes only half of an AM channel, therefore two 883 conversations will fit into each channel, expanding the 40 AM channels to 80 883 channels. The reduction in channel space required also helps in the receiver because only half of the noise and interference can be received with 100% of the 853 signal. An SSB signal may be received only when the listening receiver is functioning in the same mode. in other words, an upper sideband (USB) may made intelligible only if the receiver is functioning in the USB mode. If a lower sideband (LSB) signal is heard when the receiver is in the USB mode, the signal will not be intelligible because when a tone signal is applied to modulate the transmitter in the USB mode, the transmitters output frequency is increased. Whereas in the LSB mode, the transmitter’s output frequency is decreased. The result is that when the mode switch is in the proper position (wither USB or LSB), a true reproduction of the tone will result if the tone is increased in frequency (say, from a low-pitched whistle to a high-pitched whistle), you will hear the increase in the output tone frequency from the receiver, If incorrect mode is selected, an increase in tone will cause a decrease in tone from the receiver. Thus when a voice is used in place of a whistle or atone, in the proper receiving mode the voice will be received correctly, whereas in the incorrect mode. the voice will be translated backwards and cannot be made intelligible by the clarifier. AM transmissions can be received correctly by either of the SSS modes since AM transmission contains both upper and lower sideband signals. Once the desired SSB Mode has been selected, frequency adjustment may be necessary in order to make the incoming signal intelligible. The clarifier control allows the operator to vary the receiving frequency above and below the exact center frequency of the channel. lfthe pitch of the incoming signal is too high or too low , adjust the clarifier to obtain the correct tone. An AM signal received while listening in one of the SSS mode will produce a steady tone (carrier) in addition to the intelligence, unless the SSB receiver is tuned to exactly the same frequency by the clarifier control. For simplicity it is recommended that AM mode shall be used to listen AM signals. Mm Miketing Corporation, 1212, Remington Rod. Schwmburg. ILm173, USA Revision 0 Pne 15 0125 OPERATING MANUAL CBS-2100 40—Channels Citizen Band Radio COMPANDER 0PERAT|ON CBS-2100 radios are equipped with an audio ccmpander circuit called “Clear Drive" to enhance audio performance. The circuit is ON when the ‘Clear Drive.” switch on the front panel is set to “CBS”. The Compander comprised of two circuits, a Compressor for transmit audio and an Expander for received audio. The Compressor reduces the dynamic range of the transmit audio by increasing gain for low-level signals and decreasing gain for the higher level signals. A reversed process is conducted by the Expander, which increases circuit gain for high level signals and reduces gain for low-level signals. When the Compander is used in both the transmitter and receiver, the dynamic range of the audio signal can be preserved and the noise induced in the transmission path is highly reduced. When Compressor is only used in the transmitter end, and no Expander is used in the receiver, the receiver will observe a compressed audio signal similar to those from a very high gain microphone but without overload/clipping distortion at high signal levels. When the Expander is used in the receiver and the compressor is not present in the transmitter end. The Expander reference level is set at around 12dB SINAD output of the receiver such that the noisy signal at marginal reception levels are suppressed, while the strong and clear signals are boosted. The user might find the received voice levels be exaggerated in some cases, In order to increase the dramatic effects of Clear Drive on transmit. CBS-2100 is equipped with dual stage Clear Drive configuration called Super CBS, The user could activate Super 003 by turning VR102 from OFF position clockwise (Auto- CDS) to adjust the compression ratio of the compander. When VR102 is at OFF position, the Clear Drive internal circuits automatically fix the compression ratio. Super CDS is a transmit audio enhancement circuit and has no effects over CDS for the receiver circuit. 10 CODES . Citizens Band operators have largely adopted the "10—code" for standard questions and answers. Its use permits faster communications and better understanding in noisy areas. The following table lists some of the more oomrnon codes and their meanings. Ms Mating Cmfllm , 1212, Remington Road. Schwmburg, IL80173, USA Revision 0 Pm 18 d 25 OPERATlNG MANUAL CBS—2100 40-Channels Citizen Band Radio 10 CODES AND THEIR MEANING 10-1 Receiving poorly 10-37 Wrecker needed at 10-2 Receiving well 10-38 Ambulance needed at 10—3 Stop transmitting 10-39 Your messaged delivered 10-4 0K, msage received 10-41 Please turn to channel 10—5 Relay message 1042 Traffic accident at 10-6 Busy, stand by 1043 Traffic tie up at 10—7 Out of service, leaving air 1044 I have a message for you 10-8 In service, subject to call 10—45 All units within range please 10-9 Repeat message report 10-10 Transmission completed 10-50 Break channel standing by 10—60 What is the next message 10-11 Talking too rapidly number? 10-12 Visitors present 10-62 Unable to copy, use phone 10—1 3 Advise Weamer/Road conditions 10—63 Net directed to 10-16 Make pick up at 10-64 Net clear 10—17 Urgent business 10-65 Awaiting your next 10-18 Anything for us message/assignment 10-19 Nothing for you, return to base 1 10—67 All units comply 10-20 My location is 10—70 Fire at 10—21 Call by telephone 10—71 Proceed with transmission in 10-22 Report in person to sequence 10—23 Stand by 10—77 Negative contact 10-24 Completed last assignment 10-81 Reserve hotel room for 10—25 Can you contact 10-82 Reserve room for 10-26 Disregard last information 10—84 My telephone number is 10-27 I am moving to channel 10-85 My address 10—28 Identify your station 10—91 Talk closer to mike 10-29 Time is up for contact 10—93 Check my frequency on this 10—30 Does not conform to FCC rules channel 10—32 I will give you a radio check 10-94 Please give me a long count 10-33 EMERGENCY TRAFFIC 10499 Mission completed, all units 10-34 Trouble at this station secure 10—35 Confidential information 10-200 Police needed at 10-36 Correct time is Wilda“ Mikaing Corporation , 1212, Ranlngtofl Rood. Schlmnbug, IL80173. USA Revision 0 Page w azs OPERATING MANUAL CBS-2100 40-Channels Citizen Band Radio A Few Rules That Should Be Obeyed 1. You are not allowed to carry on a conversation with another station for more than five minutes at a time without taking a one-minute break to give others a chance to use the channel. You are not allowed to blast others oh the air by overpowering them with illegally amplified transmitter power or illegally high antennas. You can't use CB to promote illegal activities. You are not allowed to use profanity. You may not play music in your CB. You may not use your CB to sell merchandise or professional service. F”??? How Your CB Can Serve You - Warn of traffic tie ups ahead » Provide weather and road information - Provide fast help in the event of emergency or break down - Suggest good spots to eat or sleep - Make long trips more interesting and help you keep awake - Provide direct contact with your office or home - Make friends for you as you travel - Provide "local information" to find your destination - Help law enforcement officers by reporting drunk or reckless drivers The Highway Patrol has said that drunk drivers, wrong-way drivers and speeders reported by CBers is "amazing." Even the "Smokey Beat" warnings don't shake their beliefs that "the potential benefits of CB radio to law enforcement are so great that they far outweigh the disadvantages" In regard to CB radar warnings to other CBers, the Highway patrol has said, 'We've overheard warnings being relayed to truckers long alter our operating have! been discontinued...so we actually receive a residual benefit from these warnings.“ Use Channel 9 For Emergency Messages Only The FCC gives the following examples of permitted and prohibited types of communications for use on Channel 9. These are guidelines and are not intended to be all—inclusive, Permitted: "A tornado sighted six miles of town.“ Not Permitted; "This is observation post number 10. No tornado sighted." Wireless MMQ Caporatlon , 1212 Rmirlglfl'l Road, Sdreumburg, lL50173, USA Revision 0 Page 15 d25 OPERATING MANUAL CBS-2100 40-Channeis Citizen Band Radio MAINTENANCE AND ADJUSTMENT The Cherokee CBS—2100 transceiver is specifically designed for the environment encountered in a mobile installation. Should a failure occur, however, replace parts only von'th identical parts. Do not substitute Refer to the schematic diagram and parts list. If problem occurs when operating your radio, review the operating instruction to ensure that proper procedures were allowed, If the problem persist, refer to WARRANTY SERVICE INSTRUCTION section in this mnual. I! FCC WARNING I! All transmitter adjustments other than the front panel controls should be performed by or under the immediate supervision and responsibility of a person certified as technically qualified to perform transmitter maintenance and repair duties in the private land mobile services and fixed services by an organization or committee representative of users in those services. Replacement or substitution of transistors, regular diodes or other part: of a unique nature. with parts other than those recommended by Cherokee Electronics, may cause violation of the technical regulations of Part 95 of the FCC Rules, or violation of Type Acceptance requirements of Part 2 of the Rules. PRESS-TO-TALK MICROPHONE SHIPPED WITH THE RADIO A low impedance (500 Ohms) dynamic microphone is shipped with the radio. The Push-To-Talk (PTT) switch on the microphone controls the operation of the transmitter and the receiver. Press the switch and the to transmit and release the PTT switch to receive. ALTERNATE MICROPHONES AND INSTALLATION For best results, the user should select a low-impedance dynamic type microphone or a transiston'zed microphone. Transistorized type microphones have a low output characteristic. The microphones must be provided with a four wires cable. See Figure 1 - microphone wiring schematic for details. If the microphone to be used is supplied with a pre-cut cable, they must be reconfigured as follows: erdfl kafiing Climatic", 1212 Runirmon Red. Sdtatmtbulg, IL50173, USA Rgv'uion 0 Page 19 (125 OPERATlNG MANUAL CBS-2100 40-Channels Citizen Band Radio f~ 1. Cut the wires so that they extend 7/16" beyond the plastic insulating jacket of the microphone cable. See Figure 2 for details. 2. All wires should be cut to the same length. Strip the ends of each wire 1/8” and tin the exposed wires. Before beginning the actual wiring, read carefully, the circuit and wiring information provide with the microphone you selected. Keep the exposed wire lengths to a minimum to avoid short circuit when the microphone plug is reassembled. MlCROPHONE PLUG REASSEMBLlNG Remove the retaining screw. Unscrew the housing from the pin receptacle body Loosen the two cable clamp retainer screws Feed the microphone cable through the housing. Knurled ring and washers as shown in Figure 3. The wires must now be soldered to the pins as indicated in Figure 1. Wiring table. if a vise or clamping tool is available, it should be used to hold the pin receptacle during the soldering operation, so that both hands are free to do the soldering job. Alternatively, the pin receptacle can be held in a stationary position by inserting it into the microphone jack on the from panel. The number of the pins of the microphone plug are shown in Figure 2 as viewed from the back of the " plug. Before soldering the wires, pre-tin the wire receptacles of each pins on the plug. 9‘ 99’Nr‘ Be sure that the housing and the knurling ring of Figure 3 are pushed back onto the microphone cable before starting to solder. if the washer is not captive to the pin receptacle , make sure that it is [placed on the threaded portion of the receptacle before soldering. if the microphone jack is used to hold the pin receptacle when soldering, best results are obtained when the connection to pins 1 and 3 are made first and then the connections to pins 2, 4 and 5. Use minimum amount of solder and be careful to prevent excessive solder accumulation on the pins, which could cause a short circuit between pins and the microphone plug housing. 6. When all soldenng connection to the pins of the microphone plug are completed, push the knurling ring and the housing forward and screw the housing onto the threaded portion of the pin receptacle. Note the location ofthe screw clearance hole in the plug housing with respect to the threaded hole in the pin receptacle, When the housing is completely threaded into the pin receptacle, a final fraction of turn either clockwise or counterclockwise may be required to align the screw hole with the threaded hole in the pin receptacle. When these are aligned, the retaining screw is then screwed into plaw to secure the housing to the pin - receptacle. Wldas Mm Corporation , 1212. Remington Rood, Schlunlang, le173, USA Revision 0 Pigs 20 $25 _____________________~______,________.___._——-————-———-—— OPERATlNG MANUAL CBS-2100 40-Channets Citizen Band Radio 7. The two cable clamp retainer screws should now be tightened to secure the housing to the microphone card If the cutting direction have been carefully followed. the able clamp should secure to the insulating jacket of the microphone cable. Upon completion of the microphone plug wiring. connect and secure the microphone plug in the transceiver. Wkdss Mlkdim Contention , 1212, Remingtm R031 Sohuurrtmg, 150173, USA Revision 0 Page 21 $25 OPERATING MANUAL CBS-2100 40-Channels Citizen Band Radio , — .__, H ALTERNATE MICROPHONES SCHEMATIC Fig. 1. Transceiver microphone wiring schematic. 4 Wire Microphone Cable Pin Number: 1 - 2 a 4 Min. cable Lead: AF Shield AF Lead Tx Control Rx Conlroi Fig. 2. Microphone plug pin number viewed from rear of pin receptacle. Fig. 3. Microphone plug wiring. Wireless M-kefinq Corporation , 1212. Runlngen Road. Sehllnburg, mum, USA Revilion o Pm 22 of 25 OPERATING MANUAL CBS-2100 40-Channels Citizen Band Radio WARRANTY Limited One Year Wan'anty WIRELESS MARKETING CORPORATION warrants that its Cherokee citizens band (CB) radio, and the component parts thereof, will be free of defects in workmanship and materials for period of one (1) year from the date of first consumer purchase. This warranty may be enforced by the first consumer purchaser, provided that the product is utilized within the USA Wireless Marketing will, without charge, repair or replace, at its option, defective citizens band (CB) products or component parts upon delivery to the Wireless Factory Service Department, accompanied by proof of the date of first consumer purchase, such as a duplicated copy of a sales receipt You must pay any initial shipping charges required to ship the product for warranty service, but the return charges will be at Cherokee expense, if the product is repaired or replaced under warranty. For further details concerning procedures for obtaining service, see the "If You Need Service" section of the Owner 5 Manual. Exclusions: This limited warranty does not apply; 1) to any product damaged by accident; 2) in the event of misuse or abuse of the product in as a result of unauthorized alterations or repairs; 3) if the serial number has been altered, defaced or removed; 4) if the owner of the product resides outside the U.S.A. All implied warranties, including warranties of merchantability and fitness for a particular purpose are limited in duration to the length of this warranty. Cherokee shall not be liable for any Incidental, consequential or other damages; including, without limitation, damages resulting from loss of use or cost of installation. Some states do not allow limitations on how long an implied warranty lasts and/or do not allow the exclusion or limitafion of incidenlal or consequential damages, so the above limitation may not apply to you. WIRELESS MARKETING CORPORATION 1212 Remington Road Schaumburg, IL 601 73 Ph: 1-800-259-0959 Fax: 1-847-839-0016 E-Ilall Address: service@wirelessmarketing.eom Website: http:llwww.wirelessmarketing.oom For additional Information about your new CB radio: call the toll free Cherokee Consumer Information Hotllne, VVlielen unsung Corporation, 1211 Remington Road. Sd'uumburg, iLso173, USA Revision 0 Page 23 urzs OPERATING MANUAL CBS-2100 4D~Channels Citizen Band Radio Monday- Friday, 8:00am- 5:00pm, CST. (Please have the model and serial number ready) 1 400-259-0959 (in the U.S. and Canada ONLY) If You Think You Need Service, Call 1-800-259-0959 You may be asked to send your unit to the Cherokee factory. It will be necessary to fumish the following. in order to have the product serviced and returned. I. For Warranty Repair. include some form of proof-of-purchase, such as a mechanical reproduction or carbon or a sales receipt. If you send the original receipt it cannot be returned. 2 Send the entire product. Must include CB unit and microphone. 3. Enclose a description of what is happening with the unit. Include a typed or clearly printed name and address of where the unit is to be returned. 4. Pack unit securely to prevent damage in transit. If possible, use the original packing material. 5. Ship prepaid and insured by way of a traceable cantor (to avoid loss in transit) such as United Parcel Service (UPS), Roadway Parcel Service (RPS) or First Class Insured Mail to Cherokee Factory Service, Wireless Marketing Corporation, 1212 Remington Road, Schaumburg, IL 60173. Cherokee is not responsible for units not received if package has not been properly insured. 6. If the unit is in warranty upon receipt of your unit it will either be repaired or exchanged depending on the model. Please allow approximately 3 to 4 weeks before contacting us for status. If the unit is out of warranty a letter will automatically be sent informing you of the repair charge or replacement charge. If you have any questions. please call 1-800-259-0959 for assistance. If you received the Cherokee product as a gift and do not have the proof of purchase information necessary for service, include the following information, with the product: Clearty printed or typed name and address. Date, month and year you received the gift. Model number, where purchased (if Possible) - store name and location. lNldess “Mtg Corpofltiofl , 1212. Relvu‘mtfll Road, sci-um. "50173, USA Revision 0 Page 24 dZS
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