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Last modified 2025-09-11

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Icom IC-77

A picture of Icom IC-77

SPECIFICATIONS

GENERAL
Type:Professional land mobile HF transceiver
Frequency range: TX: 1.605-2 / 3.5-4 / 5-8 / 9-30 MHz
RX: 0.5-30 MHz
Tuning steps:Channelized (Programmable in ? Hz increments)
Frequency stability: Less than ±200 Hz from 1 to 60 minutes after power on @ 25°C (77°F)
Less than ±30 Hz per hour from 60 minutes after power on @ 25°C (77°F)
Mode:AM / SSB / CW
Channels / memory management: 25, 30, 40 or 50 regular (Depending on version)
Alpha tags
RAM storage with lithium battery backup
Duplex shift / offset:Programmable
Power supply:13.8 VDC ±15%
Current drain / power consumption:RX: 1.3-2.1 A
TX: Max 20 A
Antenna impedance / connector:50 ohm / SO-239
Dimensions (W*H*D):240*95*239 mm (9.45*3.74*9.41")
Weight:3.9 Kg (8.6 lb)
Other features:NB. Attenuator. Preamp.




RECEIVER SECTION
Receiver system: ? conversion superheterodyne
Sensitivity: AM (10 dB S/N, Preamp on)
0.5-1.605 MHz: 12.6 uV
1.605-30 MHz: 2.0 uV
SSB/CW (12 dB SINAD, Preamp on)
1.605-30 MHz: 0.5 uV
Squelch sensitivity:SSB/CW Preamp off: 5.6 uV (Threshold)
Selectivity: AM:
6.0 KHz (-6 dB)
20 KHz (-60 dB)
SSB/CW:
2.1 KHz (-6 dB)
4.0 KHz (-60 dB)
Image rejection:>70 dB
AF output power / speaker:2.6 W at ?% distortion / 8 ohm
External speaker connector:TS "Minijack" (3.5 mm), 4-16 ohm




TRANSMITTER SECTION
RF output power: AM: 5-25 W
SSB/CW: 5-100 W
Modulation system: AM: Low power modulation
SSB: Balanced modulation
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -46 dB
Microphone impedance / connector:600 ohm / 8-pin (Male locking ring jack)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1993-199x (Discontinued)
Additional info:
Related documents:User manual (2.6 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
AT-130
AH-2B
CR-338
FL-52A
FL-53A
HM-36
IC-MB5
MB-23
MN-100
MN-100L
OPC-025A
OPC-420
PS-55
PS-66
SM-6
SM-8
SM-20
SP-7
Automatic antenna tuner
Mobile antenna element
High stability crystal unti. 0.5 ppm
Narrow CW filter, 500 Hz
Narrow CW filter, 250 Hz
Hand microphone
Mobile moounting bracket
Carrying handle
Antenna matcher, for dipole or whip antenna
Antenna matcher, For whip or longwire antenna
DC power cable
Control cable. 10 m (32.8 ft)
AC power supply. 13.8 VDC, 20 A
DC/DC-converter. In 19-32 V, out 13-6 VDC, 30 A
Desk microphone
Desk microphone. Dual line output
Desk microphone. High quality with heavy base
External speaker