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Desktop Transceiver
Speech processor
External Speaker Console

General

HAM bands 11m (CB)  ? None 
Freq. stability ? ? -
Tuning steps Channelized ? -

Receiver

RX-range 26.965-27.255 MHz ? -
Modulations AM   - -
Sensitivity 0.5 µV ? -
Selectivity 6 kHz @ -6 dB
30 kHz @ -60 dB
? -
Filters ? ? -
Receiver system Dual conversion superheterodyne ? -
IF-freqs. ? ? -
Image rejection ? ? -
Audio output 3 W ? ?

Transmitter

TX-range 26.965-27.255 MHz ? -
Modulations AM   - -
RF-output 5 W ? -

Connections

Antenna - - Proprietary
Impedance 50Ω ?
Other - - Headphones

Electrical

Power req. 12 V DC ? Mains
Current RX ? ? ?
TX ? ? ?

Physical

Manufactured Between 195x and 196x in USA Between 19xx and 19xx Between 196x and 19xx in USA
Dimensions 157 × 55 × 222 mm
(6.18 × 2.17 × 8.74 in)
? ?
Weight 2.30 kg (5.1 lbs) ? ?
Form factor Mobile Base Station Base Station

Other features

Memories 12 channels in 1 bank(s) ? None
Usage Citizen Band (27Mc) Amateur / Ham radio operators Amateur / Ham radio operators
Features PA output use in vehicle ? -
Accessories ? ? -
MPN E.F.-JOHNSON-MESSENGER-III KEN PRODUCT-KP-000060 GALAXY-SC000550