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Last modified 2023-09-19

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Icom IC-821H

A picture of Icom IC-821H

SPECIFICATIONS

GENERAL
Type:Amateur VHF/UHF transceiver
Frequency range: Europe
TX: 144-146 / 430-440 MHz
RX: 136-174 / 420-460 MHz
USA and Australia
TX: 144-148 / 430-450 MHz
RX: 136-174 / 420-460 MHz
Sweden
TX: 144-146 / 432-438 MHz
RX: 136-174 / 420-460 MHz

(The wide RX frequency range may require modification on some markets)
Tuning steps:1 / 10 / 50 / 100 Hz, 5 / 10 / 12.5 / 20 / 25 / 100 KHz
Frequency stability:±3 ppm @ -10 to +60°C (14 to 140°F)
Mode:FM / SSB / CW
Channels / memory management: 80 regular per band
1 call per band
2 scan edges per band
10 satellite
RAM storage with lithium battery backup
Repeater shift / offset:±0-9.995 MHz
Power supply:13.8 VDC ±15%
Current drain / power consumption:RX: 2 to 2.5 A
TX: Max 16 A
Antenna impedance / connector:50 ohm / SO-239 + N-jack
Dimensions (W*H*D):241*94*239 mm (9.5*3.7*9.4")
Weight:5 Kg (11 lb)
Other features: Built-in keyer. IF shift. NB. VOX. CTCSS/PL encoder (US & Australian versions only).
CI-V interface




RECEIVER SECTION
Receiver system: Single, double or triple conversion superheterodyne, depending on band and mode
IF matrix
Sensitivity: FM: 0.18 uV (12 dB SINAD)
SSB/CW: 0.11 uV (10 dB S/N)
Selectivity: FM
15 KHz (-6 dB)
30 KHz (-60 dB)
SSB/CW
2.3 KHz (-6 dB)
4.2 KHz (-60 dB)
CW narrow (Optional)
500 Hz (-6 dB)
1.34 KHz (-60 dB)
Image rejection:60 dB
AF output power / speaker:2 W at 10% distortion / 8 ohm
External speaker connector:3.5 mm, 8 ohm




TRANSMITTER SECTION
RF output power:

FM / CWSSB
2 m:6-45 W6-35 W
70 cm:6-40 W6-30 W

The output power is continuously adjustable
Modulation system:FM: Variable reactance
SSB: Balanced
Max FM deviation (Factory set):±5 KHz
Spurious emissions:Better than -60 dB
Microphone impedance / connector:600 ohm / 8-pin (Metal locking ring connector)
Microphone input level:? mV




MISCELLANEOUS
Manufactured:Japan, 1996-199x (Discontinued)
Additional info:
Related documents: User manual (5 MB)
Service manual (44 MB)
Modifications and fixes:
Reviews:
Options / Accessories:
AG-25
AG-35
CR-293
CT-17
FL-132
FL-133
HM-12
HM-14
HM-15
IC-MB5
IC-SP3
MB-23
PS-30
PS-85
SM-20
SP-7
SP-20
SP-21
UT-84
UT-102
External preamplifier, 2 m
External preamplifier, 70 cm
High-stability crystal unit
CI-V level converter
CW narrow filter, 500 Hz, main band
CW narrow filter, 500 Hz, sub band
Standard hand microphone with up/down switches
Hand microphone with DTMF keypad and up/down switches
Hand microphone with 1750 Hz tone call and up/down switches
Mobile mounting bracket
External speaker, 4 W, 8 ohms
Carrying handle
Lightweight switch mode power supply, 13.8 VDC, 25 A
Matching switch mode power supply, 13.8 VDC, 20 A
Electret desk microphone with up/down and low cut switches
External speaker, 5 W, 8 ohms
External speaker with filters, 5 W, 8 ohms
External speaker, 5 W, 8 ohms
Tone squelch unit (CTCSS/PL) with tone scan
Voice synthesizer unit
An inside top picture of Icom IC-821H
An inside bottom picture of Icom IC-821H
A rear picture of Icom IC-821H