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Mobile Transceiver
Desktop Transceiver
Desktop Transceiver

General

HAM bands 11m (CB)  11m (CB)  11m (CB) 
Freq. stability ? ? ?
Tuning steps Channelized Channelized Channelized

Receiver

RX-range 26.965-27.405 MHz 26.965-27.255 MHz 26.965-27.255 MHz
Modulations FM   AM   AM  
Sensitivity ? 0.4 µV for 10 dB S/N 0.5 µV
Selectivity ? 7 kHz @ -6 dB
21 kHz @ -60 dB
7 kHz @ -6 dB
19 kHz @ -60 dB
Filters ? ? ?
Receiver system ? Crystal controlled single conversion superheterodyne ?
IF-freqs. ? 455 kHz ?
Image rejection ? ? ?
Audio output ? 3 W 3 W

Transmitter

TX-range 26.965-27.405 MHz 26.965-27.255 MHz 26.965-27.255 MHz
Modulations FM   AM   AM  
RF-output 4 W 2.8 W 3 W

Connections

Antenna - - -
Impedance 50Ω 50Ω 50Ω
Other - - -

Electrical

Power req. ? Mains Mains
Current RX ? ? ?
TX ? ? ?

Physical

Manufactured Between 1985 and 1989 Between 195x and 196x in USA Between 195x and 196x in USA
Dimensions 170 × 55 × 155 mm
(6.69 × 2.17 × 6.10 in)
143 × 178 × 290 mm
(5.63 × 7.01 × 11.42 in)
157 × 55 × 222 mm
(6.18 × 2.17 × 8.74 in)
Weight 1.10 kg (2.4 lbs) 5.40 kg (11.9 lbs) 2.30 kg (5.1 lbs)
Form factor Mobile Base Station Base Station

Other features

Memories 40 channels in 1 bank(s) 10 channels in 1 bank(s) 12 channels in 1 bank(s)
Usage Citizen Band (27Mc) Citizen Band (27Mc) Citizen Band (27Mc)
Features ? ? ?
Accessories ? ? ?
MPN ZODIAC-M-000144 E.F.-JOHNSON-MESSENGER-II E.F.-JOHNSON-MESSENGER-000300