background image

FILE: IM401 service manual.doc                                                                                                  2006.01.10

 

E-TECH Co., Ltd                                                                                                                                      2/24

 

1. Introduction 

IM401 has a compact size with a various features in the range of 403~470MHz. 

Has a various features shown as below. 

IM401 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 IM 

401 

Supplied 

Package

 

User manual 

 

                                                                                                                 

Items Model 

Hand Microphone 

 

Battery Cable 

 

Pedestal 

 

Accessories

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for IM401

Page 1: ...FILE IM401 service manual doc 2006 01 10 E TECH Co Ltd 1 24 Table of Contents 1 Introduction 2 Description of Unit 3 Technical Specifications 4 Features and operation 5 Antenna Installation...

Page 2: ...cked 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 D...

Page 3: ...ing 40W 9A When Receiving 3W 1A Transmit standby 150mA 8 Microphone External Condenser Mic 9 Operating temperature range 30 60 10 Size 178 W x49 H x195 D 11 Weight 1600g 3 2 Transmitter 1 Power Output...

Page 4: ...cent Channel Selectivity 65 dB Narrow 70 dB Wide 6 Distortion 5 1 kHz 60 7 Hum Noise 40 45 dB HP8920A 300Hz 3kHz BPF 8 Audio output Normal 3W Max 5W 9 BAND SPREAD 67MHz 10 Speaker size 58 35 Oval 4 Fe...

Page 5: ...djustable 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...

Page 6: ...7 SCRAMBLE Appears while the voice scrambler function is activated 8 TALK AROUND Indicator 4 3 Features 1 Channel This radio offers up to 255 channels 1 By using or button you can select the desired...

Page 7: ...td 7 24 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 scr...

Page 8: ...nual doc 2006 01 10 E TECH Co Ltd 8 24 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 5 Lone work 1 to enter Menu Mode 2 or to until 3 to select...

Page 9: ...o 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 TONE...

Page 10: ...ceiving 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 e...

Page 11: ...c 2006 01 10 E TECH Co Ltd 11 24 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 11 Key lock 1 to enter Menu Mode 2 or to until 3 to select 4 or to sele...

Page 12: ...d 12 24 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...

Page 13: ...service manual doc 2006 01 10 E TECH Co Ltd 13 24 14 Scan 1 to enter Menu Mode 2 or to until 3 to scan 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...

Page 14: ...10 E TECH Co Ltd 14 24 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...

Page 15: ...doc 2006 01 10 E TECH Co Ltd 15 24 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...

Page 16: ...006 01 10 E TECH Co Ltd 16 24 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 21 Power save 1 to enter Menu Mode 2 or to until 3 to select 4...

Page 17: ...al doc 2006 01 10 E TECH Co Ltd 17 24 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...

Page 18: ...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 D...

Page 19: ...doc 2006 01 10 E TECH Co Ltd 19 24 26 Scramble 1 to enter Menu Mode 2 or to until 3 to select 4 or to select ON OFF 5 to select 27 Status call Send 1 to enter Menu Mode 2 or to until 3 to select 4 or...

Page 20: ...2006 01 10 E TECH Co Ltd 20 24 28 Misscall List Delete 1 to enter Menu Mode 2 or to until 3 to select 4 or to select ON OFF 5 to select 29 Radio Reset 1 to enter Menu Mode 2 or to until 3 to select 4...

Page 21: ...iable call 1 to enter Menu Mode 2 or to until 3 to select 4 or to select 1 2 3 A B C D E 5 to select 31 Mic Sensitivity Level Mic Gain Control 1 to enter Menu Mode 2 or to until 3 to select 4 or to se...

Page 22: ...TOR DESCRIPTION Connection Pin NO Function Remark GND Ground GND CPU_INT_PTT Push To Talk GND Enable 5V Internal 5 Volt Regulator 5 Volt FLAT_AUDIO_IN OUT Constant Audio Signal Level S W_BATT Switched...

Page 23: ...quirements of the antenna supplier and install the vehicle antenna external to a metal body vehicle in accordance with those requirements 2 Roof top For optimum performance and compliance with RF Ener...

Page 24: ...es rubbing against each other such as seat springs shift levers trunk and hood lids exhaust pipes etc in close proximity to the antenna can cause severe receiver interference 5 3 Antenna Installation...

Reviews: