E TECH IP400 FM Handheld Transceiver User Manual 1

E-TECH Co., Ltd. FM Handheld Transceiver Users Manual 1

Contents

Users Manual 1

FILE: IP 400 service manual.doc 2004.05.07 E-TECH Co., Ltd 1/18 ▶Table of Contents◀ 1. Introduction 2. Description of Unit 3. Technical Specifications 4. Theory of Operation 5. Circuit Descriptions 6. Alignment Procedure -
FILE: IP 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 2/18 1. Introduction IP 400 has a compact size with a various features in the range of 405~490MHz. IP 400 Has a various features shown as below. IP 400 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 400 Antenna IA-444 1700mAh Li-Ion battery pack BL 1700 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 3/18 3. Technical Specifications 3-1 General 1) Frequency range : 405~490 MHz 2) Channels : 255 Channels 3) Channel spacing : 12.5 kHz/25 kHz 4) Communication method : Simplex 5) Antenna Impedance : 50 ohm 6) Antenna : Whip Antenna 7) Power supply voltage : LI-1700mAh Li-Ion battery pack(Voltage: 7.5V DC) 8) Current Drain : When Transmitting(4W) - < 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 – 4W, 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 : -36 [dBm] 8) FM Hum & Noise : -40 [dB] (HP8920A 300Hz 3kHz BP～F) 9) BAND SPREAD : 85 [MHz]
FILE: IP 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 4/18 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 : -70 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 : 85MHz 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 5/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 6/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 7/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 8/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 9/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 10/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 11/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 12/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 13/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 14/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 15/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 16/18 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 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 17/18 6. Alignment 6-1 Alignment point
FILE: IP 400 Service manual.doc 2004.05.07 E-TECH Co., Ltd 18/18 6-2 Voltage Check 1) Set up the radio frequency to (405.025[Mhz]) then measure whether R/Tx voltage is over 0.8[v]. 2) Set up the radio frequency (489.975[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 (446.025[MHz]), set up Tx mode then adjust frequency by using VR 301 at the level of ±150[Hz]. High power should be 3~4.6[W]. In case of out of this range, you can check whether current is under 2A then adjust at the level of 3.8W 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 (446.025[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 446.025[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 (446.025[MHz]), you have to check whether FM DEVIATION should be (3.6 ~ 4.8[kHz]), in case of 1G-4(446.025[MHz]), TONE DEVIATION should be (0.5~1.2[KHz]). Also, you have to check whether in case of 1G-2(446.025[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) 456.025[MHz] Narrow a. Frequency : ±300[Hz] b. Output power(L/H) : 0.7 ~ 1.2[W] / 3 ~ 4.6[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) 456.025[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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