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Desktop Transceiver
Desktop Transceiver
DESKTOP/MOBILE SCANNER RADIO

General

HAM bands 11m (CB)  11m (CB)  6m  2m  70cm 
Freq. stability ? ? ?
Tuning steps Channelized Channelized 3.125 / 5 / 6.25 / 7.5 / 8.33 / 12.5 / 25 kHz

Receiver

RX-range 26.965-27.255 MHz 26.965-27.255 MHz 25-54 / 108-174 / 216-512 / 764-960 / 1240-1300 MHz
Modulations AM   AM   AM   FM   W-FM   P25  
Sensitivity 0.5 µV 0.5 µV ?
Selectivity 6 kHz @ -6 dB
30 kHz @ -60 dB
7 kHz @ -6 dB
19 kHz @ -60 dB
?
Filters ? ? ?
Receiver system Dual conversion superheterodyne ? Triple conversion superheterodyne
IF-freqs. ? ? 1st: 380.8 MHz
2nd: 21.4 MHz
3rd: 455 kHz
Image rejection ? ? ?
Audio output 3 W 3 W 1.8 W

Transmitter

TX-range 26.965-27.255 MHz 26.965-27.255 MHz -
Modulations AM   AM   -
RF-output 5 W 3 W ?

Connections

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

Electrical

Power req. 12 V DC Mains 12-16 V DC
Current RX ? ? ?
TX ? ? -

Physical

Manufactured Between 195x and 196x in USA Between 195x and 196x in USA Between 2014 and 201x in USA
Dimensions 157 × 55 × 222 mm
(6.18 × 2.17 × 8.74 in)
157 × 55 × 222 mm
(6.18 × 2.17 × 8.74 in)
185 × 55 × 135 mm
(7.28 × 2.17 × 5.31 in)
Weight 2.30 kg (5.1 lbs) 2.30 kg (5.1 lbs) 1.20 kg (2.6 lbs)
Form factor Mobile Base Station Mobile

Other features

Memories 12 channels in 1 bank(s) 12 channels in 1 bank(s) 1800 channels in 1 bank(s)
Usage Citizen Band (27Mc) Citizen Band (27Mc) Amateur / Ham radio operators
Features PA output use in vehicle ? Trunking: Motorola, LTR, EDACS
Spectrum sweeper
CTCSS/PL + DCS
Weather channels
Object oriented memory
1800 programmable objects
EEPROM storage
PC-programmable
Accessories ? ? ?
MPN E.F.-JOHNSON-MESSENGER-III E.F.-JOHNSON-MESSENGER-000300 WHISTLER-WS001065