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Last modified 2023-09-19

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Icom IC-746

A picture of Icom IC-746

SPECIFICATIONS

GENERAL
Type:Amateur HF/VHF transceiver
Frequency range: Europe
TX: 10-160 m + WARC / 50-54 / 144-146 MHz
RX: 0.03-60 / 108-174 MHz
USA
TX: 10-160 m + WARC / 50-54 / 144-148 MHz
RX: 0.03-60 / 108-174 MHz
Tuning steps:Down to 1 Hz
Frequency stability:±5 ppm @ 0 to 50°C (20 to 122°F)
Mode:AM / FM / SSB / CW / RTTY
Channels / memory management: 99 regular with 9 character alpha tags
2 scan edges
1 call
Non-volatile EEPROM storage
Repeater shift / offset:±0-4 MHz in 1 KHz steps
Power supply:13.8 VDC ±15%
Current drain / power consumption:RX: 1.8 to 2 A
TX: Max 20 A
Antenna impedance / connector:50 ohm / Three SO-239
Dimensions (W*H*D):287*120*316 mm (11.3*4.72*12.44")
Weight:8.9 Kg (19.62 lb)
Other features: CTCSS/PL. Auto ATU. Electronic keyer. Simple spectrum scope.
VOX. DSP. CI-V computer control.




RECEIVER SECTION
Receiver system: Triple conversion superheterodyne
1st IF: 69.01 MHz
2nd IF: 9.01 MHz
3rd IF: 455 KHz
Sensitivity:AM (10 dB S/N)
0.5-1.8 MHz: 13 uV
1.8-30 MHz: 2 uV (Preamp 1 on)
6 m/2 m: 1 uV (Preamp on)
FM (12 dB SINAD)
28-30 MHz: 0.5 uV (Preamp 1 on)
6 m: 0.25 uV (Preamp 2 on)
2 m: 0.18 uV (Preamp on)
SSB/CW/RTTY (10 dB S/N)
1.8-30 MHz: 0.16 uV (Preamp 1 on)
6 m: 0.13 uV (Preamp 2 on)
2 m: 0.11 uV (Preamp on)
Selectivity: AM/FM-N
>9 KHz (-6 dB)
<20 KHz (-60 dB)
FM
>12 KHz (-6 dB)
<30 KHz (-50 dB)
SSB/CW/RTTY
>2.1 KHz (-6 dB)
<4 KHz (-60 dB)
Image rejection:HF/6 m: 70 dB
2 m: 60 dB
AF output power / speaker:2 W at ?% distortion / 8 ohm
External speaker connector:3.5 mm, 4-8 ohm




TRANSMITTER SECTION
RF output power:

Pwr
AM:5-40 W
FM:5-100 W
SSB (PEP):5-100 W
CW:5-100 W
Modulation system:AM/SSB: Balanced modulation
FM: Variable reactance modulation
Max FM deviation (Factory set):Max ±5 KHz
Spurious emissions:HF: Better than -50 dB
VHF: Better than -60 dB
Microphone impedance / connector:600 ohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1997-2002 (Discontinued)
Additional info:
Related documents: User manual (2 MB)
Service manual (49.7 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
AH-2b
AH-4
CR-282
CT-16
CT-17
EX-627
FL-52A
FL-53A
FL-96
FL-100
FL-101
FL-103
FL-222
FL-223
FL-232
FL-257
HM-36
IC-PW1
OPC-025A
PS-85
SM-8
SM-20
SP-21
UT-102
Antenna element for mibile operation, 3.5-28 MHz with AH-4
External automatic antenna tuner, HF
High stability crystal unit (±0.5 ppm)
Satellite interface unit
CI-V level converter
Automatic antenna selector
500 Hz CW/RTTY narrow filter (IF: 455 KHz)
250 Hz CW super-narrow filter (IF: 455 KHz )
2.8 KHz SSB wide filter (IF: 455 KHz)
500 Hz CW narrow filter (IF: 9 MHz)
250 Hz CW narrow filter (IF: 9 MHz)
2.8 KHz SSB wide filter (IF: 9 MHz)
1.8 KHz SSB narrow filter (IF: 455 KHz)
1.9 KHz SSB narrow filter (IF: 9 MHz)
350 Hz CW/RTTY narrow filter (IF: 9 MHz)
3.3 KHz SSB wide filter (IF: 455 KHz)
Standard hand microphone
HF-6 m linear amplifier, 1 KW
DC power cable
Power supply. 13.8 VDC, 20 A
Desk microphone with two line out and up/down buttons
Desk microphone, unidirectional electret
External speaker. 8 ohm, 5 W
Voice synthesizer unit
A rear picture of Icom IC-746