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VHF Transceiver
Desktop Transceiver
Mobile VHF/UHF Transceiver

General

HAM bands ? 11m (CB)  2m  70cm 
Freq. stability ? ? ± 2.5 p.p.m.
Tuning steps ? Channelized 25 / 20 / 12.5 kHz

Receiver

RX-range 143-149 MHz 26.965-27.255 MHz 136-174 MHz
400-470 / 450-500 / 350-400 MHz (depending on version)
Modulations FM   AM   FM  
Sensitivity ? 0.5 µV 0.28 / 0.33 / 0.35 μV
Selectivity ? 6 kHz @ -6 dB
30 kHz @ -60 dB
75 / 70 / 65 dB
Filters ? ? ?
Receiver system ? Dual conversion superheterodyne ?
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output ? 3 W 5W (less than 5% distortion) 3W (less than 3% distortion)

Transmitter

TX-range 143.005-148.995 MHz 26.965-27.255 MHz 136-174 MHz
400-470 / 450-500 / 350-400 MHz (depending on version)
Modulations FM   AM   FM  
RF-output High: 25 W, Low: 5 W 5 W 5 / 25 W

Connections

Antenna SO-239 - -
Impedance 50 Ω 50Ω 50Ω
Other - - -

Electrical

Power req. 13.8V DC 12 V DC 13.6V DC ±15%
Current RX 300-600 mA ? 2 A max
TX 3-6 A ? 8 A max

Physical

Manufactured Between 1982 and 198x Between 195x and 196x in USA Between 201x and 201x in China
Dimensions 162 × 55 × 182 mm
(6.38 × 2.17 × 7.17 in)
157 × 55 × 222 mm
(6.18 × 2.17 × 8.74 in)
152 × 43 × 125 mm
(5.98 × 1.69 × 4.92 in)
Weight 1.70 kg (3.8 lbs) 2.30 kg (5.1 lbs) 1,000 gr (2.2 lbs)
Form factor Unknown Mobile Mobile

Other features

Memories ? 12 channels in 1 bank(s) 128 channels in 1 bank(s)
Usage Amateur / Ham radio operators Citizen Band (27Mc) Commercial / Land mobile communication
Features ? PA output use in vehicle Short message
Accessories ? ? ?
MPN KDK-FM-002030 E.F.-JOHNSON-MESSENGER-III HYTERA-TM-000610