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Last modified 2015-08-28

Icom IC-251E

A picture of Icom IC-251E

SPECIFICATIONS

GENERAL
Type:Amateur VHF transceiver
Frequency range:144-146 MHz
Tuning steps:5 / 1 / 0.1 KHz
Mode:FM/SSB/CW
Channels/memory management:3 regular
Repeater shift/offset:±No dedicated. Use VFO A/B split
Power supply:13.8 VDC +/-15% or mains
Current drain/power consumption:RX: Max 0.6 A
TX: Max 2.3 A
Antenna impedance/connector:50 ohms / SO-239
Dimensions (W*H*D):241*111*264 mm (9.5*4.4*10.4")
Weight:5 Kg (11 lbs)
Other features:Built-in SWR-meter




RECEIVER SECTION
Receiver system:Single conversion superheterodyne (SSB/CW)
IF: 10.7 MHz
Double conversion superheterodyne (FM)
1st IF: 10.7 MHz
2nd IF: 455 KHz
Sensitivity:SSB/CW: Better than 0.5 uV (10 dB S+N/N)
FM: Better than 0.6 uV for 20 dB noise quieting
Selectivity:SSB/CW: 2.4 KHz (-6 dB), 4.8 KHz (-60 dB)
FM: 15 KHz (-6 dB), 30 KHz (-60 dB)
Image rejection:More than 60 dB
AF output power/speaker:1.5 W at ?% distortion / 8 ohms
External speaker connector:




TRANSMITTER SECTION
RF output power: FM: 1-10 W
SSB: 10 W (PEP)
CW: 10 W
Modulation system:FM: Variable reactance
SSB: Balanced
Max FM deviation:±5 KHz
Spurious emissions:Less than -60 dB
Microphone impedance/connector:1.3 Kohm / 8-pin




MISCELLANEOUS
Manufactured:Japan, 1980-198x (Discontinued)
Additional info:
Related documents:User manual (7.4 MB)
RF final: 2SC2094
Modifications:
Options/Accessories:
IC-EX1
IC-EX2
IC-HP1
IC-MB5
IC-SM5
IC-SP2
Extention terminal
Extention terminal with 25 KHz marker
Headphones
Mobile mounting bracket
Desk microphone
External speaker