E TECH IP100 FM Handheld Transceiver User Manual Part 1

E-TECH Co., Ltd. FM Handheld Transceiver Part 1

Contents

User Manual Part 1

 FILE: IP 100 service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                 1/19    ▶Table of Contents◀                            1.  Introduction                                          2.  Description of Unit                                          3.  Technical Specifications                                           4.  Theory of Operation 5.  Circuit Descriptions    6.  Alignment Procedure                                                                                                                                                                                                                                              -
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                2/19 1. Introduction IP-100 has a compact size with a various features in the range of 136~174MHz. IP-100   Has a various features shown as below. IP-100 constructed with a microprocessor controlled, temperature compensated Phase Locked   Loop(PLL) frequency synthesizer.    The radio features a double conversion receiver and a direct FM   transmitter modulator.    A special integrated circuit provides support to sub-audible signaling(CTCSS & DCS) and most of the receiving parts are switched off periodically in the power save mode to reduce battery current drain during standby.  2. Description of Unit  Items Model Radio IP 100 Antenna IA-156 1700mAh Li-Ion battery pack  BL 1800 Desktop rapid charter  IC-170 Adaptor   Supplied Package User manual                                                            Items Model External / Speaker Microphone ES-1 Earpiece Microphone  EP-1 Earpiece VOX Microphone  EV-1 AccessoriesVOX & PTT Headset  VP-1
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                3/19 3. Technical Specifications    3-1 General          1)  Frequency range           :    136~174 MHz 2)  Channels               :    255 Channels 3)  Channel spacing        :    12.5 kHz/25 kHz 4)  Communication method  :    Simplex 5)  Antenna Impedance     :    50 ohm  6)  Antenna                :    Helical Antenna 7)  Power supply voltage   :    LI-1700mAh Li-Ion battery pack(Voltage: 7.5V DC) 8)  Current Drain          :     When Transmitting(5W)         -    < 2A                                       When Receiving(0.5W)          -   < 300mA                                       Transmit standby           -    < 60mA                                       Receiver standby(PSC MODE) -    < 50mA 9)  Microphone             :    Internal Condenser Microphone(External Speaker Micro                                 phone is available)       10)  Operating temperature range:    -30    +℃~ 60℃      11)  Size                   :    56(W)x100(H)x34(D)      12)  Weight                 :    285g    3-2 Transmitter       1)  Power Output           :     HIGH – 5W,  LOW - 1W       2)  Modulation              :     8K5F3E/16K0F3E       3)  Oscillator method         :     PLL       4)  Frequency Stability       :     less than ±0.00025% (±2.5PPM) 5)  Maximum frequency deviation:  ±2.5 kHz(Narrow)/ ±5 kHz(Wide) 6)  Audio Distortion          :     less than 5% (1 kHz 60%)       7)  SPURIOUS Emission     :     -65 [dBc]       8)  FM Hum & Noise         :     -40 [dB] (HP8920A 300Hz   3kHz BP~F)        9)  BAND   SPREAD       :      38 [MHz]
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                4/19    3-3 Receiver       1)  Receiver Type         :     Double Super Hetero type       2)  Sensitivity             :     -0.25uV 이하(12dB SINAD  시)       3)  Frequency Stability     :     ±0.00025%(±2.5PPM)       4)  SPURIOUS  Rejection   :     -60 dB       5)  Adjacent Channel Selectivity:     -60 dB (Narrow) , -70 dB (Wide)       6) Distortion               :     5% (1 kHz 60%)       7) Hum & Noise            :     -40 dB(HP8920A 300Hz   3kHz ~BPF)       8) Audio output             :     1000 mW       9) BAND SPREAD          :     38MHz       10) Speaker size           :      45 pi  4. Theory of Operation EXTERNAL VIEW          12)Antenn4)Emergency Key9) PTT button 10)Mic2)Monitor Button 14)LCD1)TX POWER HIGH/LOW 3)Scan button 8)Squelch 6)Menu Button 11)POWER ON/OFF &Volume control 13)Ear/Mic Jack PC-Programming Jack 14)SPEAKER 5,7)Enter button
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                5/19 4-1 Features & Operation         1. Monitor                  Press the Monitor key momentarily to disable the Tone squelch.   2. Radio Call                   By using Various 5Tone, individual / Group call is available.                   16 Receiving codes are available as well as open call. 3. Missed calls list                  16 Missed calls can be listed. If a call remains unanswered, the call will be stored by the radio.   4. contact list                   During a call, the contact list may be used to give access to up to 16 preprogrammed   numbers accessed via the menu.   5. status list                   A status is a code for transmitting prearranged messages, e.g. status “05” may indicate “launch”. Status list contains up to 30 entries. 6. Channel : 255 channel   7. Scan ON/off   8. Power level : Power level is adjustable in each channel respectively.   9. Talkaround on/off   10. Emergency :   11. Lone Worker   12. Tx Tone select : In the menu, tx dcs /ctcss tone is adjustable.   13. Rx Tone select : In the menu, rx dcs /ctcss tone is adjustable.   14. Group : Defines group tone. You can select tone code for group, and it is used as a default value .    0~9 and a, b, c, d available. And “A” is used as a basic value..   15. BEEP ON/OFF : BEEP sound ON/OFF.     16. KEY LOCK : LOCK/UNLOCK Button KEY.   17. SQUELCH : Squelch level is adjustable   18. AUTO SQUELCH : Squelch level is adjustable automatically by surroundings.   19. DTMF ON/OFF : DTMF function is available.   20. VOX : VOX LEVEL is adjustable by pushing up and down button.   21. AUTO VOX : VOX level is adjustable automatically by surroundings.   22. P - SCAN : Priority Scan   23. POWER SAVE : Power save mode is available.   24. PASS WORD : This function is useful for security reason.   25. LOCATION INDICATE : Indicate where the radio is located by blinking green light every 7 seconds.   26. SCRMABLE : Internal Voice Scrambler is available.   27. STUN / UNSTUN : For added security and to avoid abuse of the radio system in which you operate     a feature known as Stun/Unstun is included in your radio. 28. BACKLIGHT : Lamp is lighting when you check LCD status.
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                6/19 4-2 LCD Display and Icons  1.ANT GAZE ; Shows the received signal strength. 2.TX POWER HIGH: Indicate power level 3.KEY LOCK: Appears during key lock function is ON. 4.ALART(BEEP) ON/OFF: Appears when beep sound is turned ON. 5.Battery level indicator: Indicates reaming battery power. 6.VOX ON/OFF: Appears when VOX function is turned On. 7.SCAN: Appears when Scan function is activated. 8.SCRAMBLE: Appears while the voice scrambler function is activated. 9.TALK AROUND Indicator. 4-3 Features 1. Channel   This radio offers up to 255 channels 1). By using    button,  you can select the desired channel.   2. Missed calls list Up to 16 calls can be stored.    If the same radio calls more than once, only the most recent call is stored.   When fifteen calls have been stored by the radio, depending on the radio programming the sixteenth call received may overwrite the first or not be stored by the radio. 1).    to enter Menu Mode. 2) Display shows   3) to select 4)   or to scroll list 5)  to exit
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                7/19 3. Contact list 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to scroll list 5)  to exit  4. Status call list  4-1. Making STATUS call 1)    to enter Menu Mode. 2)   or to until   3) to select 4)   or to scroll list  5)    Push PTT KEY for sending message on the LCD.  4-2  Make STATUS Message 1)    to enter Menu Mode. 2)   or to until   3) to select 4)   or to scroll list 5)  to SELECT
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                8/19 5. Lone work 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select  ON/OFF  6. Tx power . 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to    select HIGH / LOW POWER   5) to select  7. Tx Tone Selecting Transmitting TONE(CTCSS/DCS). 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  Select TONE을  either CTCSS or DCS.       0= NON TONE            1-38 CTCSS        101 – 183 DCS TONE  5)  to select exit
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                9/19 8. Rx Tone Changing Receiving  TONE(CTCSS/DCS). 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to    select TONE either CTCSS or DCS.         0= NON TONE              1-38 CTCSS        101 – 183 DCS TONE. 5)  to select exit  9. Group Changing GROUP Tone.   1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to select scroll list 5)  to select exit  10. Beep on/off 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to select on off . 5) to select
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                10/19 11. Key lock 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to    select key lock /unlock. 5) to select    12. Squelch level 16 level is available.    0 = terminate sq function   1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to the scroll list 5)  to select exit  13. Auto Squelch 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to    select on /off . 5) to select   14. Scan 1).    to enter Menu Mode. 2)   or to until   3) to scan.
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                11/19 4) Push PTT for exit  15. DTMF   1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select    16. Vox on/off 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select    17. Vox Level 16 level is available.. 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to scroll list 5)  to select  for exit
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                12/19 18. Auto Vox 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select    19. Priority Scan 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select    20. Priority scan    CH  1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to scroll list 5)  to select for exit
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                13/19 21. Power save 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select    22. Talkaround 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select    23. Password 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                14/19 24. Password CH 1).    to enter Menu Mode. 2)   or to until   3) to select  4) ---- will display on the LCD( enter old password)  or   by pushing up and down KEY to change password.     by pushing enter KEY to change digit of password.  5) Enter new password by 4 digit. 25. Location Indicate where the radio is located by blinking green light every 7 seconds. 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select    26. Scramble 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                15/19  27. Status call Send 1).    to enter Menu Mode. 2)   or to until   3) to select 4)   or to  select ON /OFF. 5) to select     5. Circuit Description.    5-1 Transmitter     1) MIC AMP Circuit                   Voice signal from the microphone are applied to microphone amplifier U303.    U303 contains a   low-pass filter that has a    6dB/oct response between 300Hz and 3kHz and eliminate above   3kHz.    The pre-emphasized audio signal is applied to VR302 to adjust maximum frequency   deviation. 2) VCO circuit          The transmit frequency is directly generated by the Colpitts oscillation circuit contains Q402,Q403.       3) POWER AMP           Signals from Q202, Q206 is supplied through antenna switch Q203,Q204 to a low-pass filter made up   and then applied to Antenna Jack.  5-2 Receiver       1) LOWPASS FILTER and Antenna switching circuit.           Signals from antenna connector fed to the antenna switching circuit through the low pass filter consisting of L212~214.    In receiving mode, D204, D202 is turned off, isolates the antenna from the transmitter circuit and matching circuitry, so that the incoming signals are fed to the RF amplifier through L211.       2) RF AMP Circuit          The signals from the switching circuit are fed to the RF amplifier Q101 through a band pass filter made   up of molded coil, vvc diode and capacitor.         3) MIXER Circuit          The amplified signals are fed to Gate 1 of the first mixer Q102.    First local oscillator signal is supplied   to Gate 2 of Q102 from the PLL circuit to convert the RF signals into 21.4MHz first IF signal.
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                16/19       4) IF Circuit          The first signals from Q102 are fed to the matched pair crystal filter FL101, then IF signals are amplified   in Q103.    And those signals are fed to U101 which is composed of the second local oscillator, second   local oscillator, second mixer, limiter amplifier, quadrature detector and active filter circuit. The second   local oscillator at 20.945MHz with X 101 and is fed to the second mixer with the first IF signals to   convert into 455kHz second IF signals.     5)  Audio and squelch Circuit       The detected audio signals are put through a 6dB/oct de-emphasis circuit made up of Q602.   The signal is then applied to audio power amplifier U603 to obtain enough power to driver the speaker.   Part of the recovered noise signal is fed to the integrated operational amplifier inside U101 which   makes up an low pass filter.    The sensitivity of squelch is adjusted by VR 101.    5-3 VCO Circuit        The transmit / receive frequency is directly generated by the Colpitts oscillation circuit contains Q402,   Q405.
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                17/19 6. Alignment  6-1 Alignment point
 FILE: IP 100 Service manual.doc                                               2004.05.01 E-TECH Co., Ltd                                                                18/19 6-2  Voltage Check         1) Set up the radio frequency to (136.025[Mhz]) then measure whether R/Tx voltage is over 0.8[v].         2) Set up the radio frequency (173.975[Mhz]) then measure whether R/Tx voltage is under 5[v].         3) When Un-Lock is display on LCD means defective goods. 6-3 Transmitter         1) At the frequency range of (146.025[MHz]),    set up Tx mode then adjust frequency by using VR 301 at the level of ±150[Hz].    High power should be 3.8~5.5[W].    In case of out of this range, you can check whether current is under 2A then adjust at the level of 4.5W by using VR501.       Low power should be 1[W] ±0.2[W].    In case of out of range, you can adjust it by using VR502.             FM DEVIATION should be adjusted at the level of 2.1[khz] ±0.1[khz] by using VR303. Low frequency input is 1[kHz],50[mV].         2) After you set up MOD at the frequency range of (146.025[MHz]), adjust TONE DEVIATION by using VR 302 at the level of 0.45[kHz] ±0. k05[zH] . 6-4  Receiver, Set up Receiving Mode at (SSG -60d[Bm]).    At the frequency range of 146.025[MHz], FM 1.5[kHz], adjust Volume at (0.5[W]). Sensitivity at the level of 12[dB] SINAD, check whether it is under -119[dBm]., and SQ(LEVEL8) is between -117[dBm] ~ -123[dBm by using VR101.    In case of out of range,    adjust it at 120[dBm]. 6-5 Wideband specification check         At the frequency range of (146.025[MHz]), you have to check whether FM DEVIATION should be (3.6 ~ 4.8[kHz]), in case of 1G-4(146.025[MHz]), TONE DEVIATION should be (0.5~1.2[KHz]).    Also, you have to check whether in case of 1G-2(146.025[MHz]), sensitivity should be (12[dB] SINAD, -119[dBm]).    SQ sensitivity is between  -116[dBm] and  -124[dBm.  6-6 FINAL(QC) Inspect specification 1) 156.025[MHz] Narrow   a. Frequency               :  ±300[Hz]    b. Output power(L/H)          :    0.7 ~ 1.2[W] / 4 ~ 5.6[W]   c. FM DEVIATION(Narrow)   :  1.8 ~ 2.5[kHz](1[kHz], 50[mV]) d. TONE DEVIATION        :  0.3 ~ 0.6[kHz]   e. Sensitivity                :  < -117[dBm]    f. SQ Sensitivity             : -116[dBm] ~ -124[dBm]( 2) 156.025[MHz] Wide band   a. FM DEVIATION(Wide band)  :  3.8 ~ 5.0[kHz](1[kHz], 50[mV])   b. TONE DEVIATION           :  0.5 ~ 1.2[kHz]   c. Sensitivity                   :  < -117[dBm]    d. SQ Sensitivity                : -116[dBm] ~ -124[dBm]

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