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Desktop Transceiver
Desktop Transceiver
4-band HF transceiver

General

HAM bands 11m (CB)  11m (CB)  40m  30m (WARC)  20m  17m (WARC) 
Freq. stability ? ? <5 Hz after 5 minute warm up at 30c (<10 Hz after 30 minute operation @ 40 °C)
Tuning steps Channelized Channelized ?

Receiver

RX-range 26.965-27.255 MHz 26.965-27.255 MHz 7-7.3 / 14-14.35 / 9.99-10.150 / 18.068-18.168 MHz
Modulations AM   AM   CW   SSB  
Sensitivity 0.5 µV ? 0.3 µV
Selectivity 6 kHz @ -6 dB
30 kHz @ -60 dB
? -3 dB/ 2.6 kHz -40 dB / 4.5 kHz
Filters ? ? 300 / 500 / 1.3 / 1.6 / 1.9 / 2.2 / 2.5 kHz (DSP)
Receiver system Dual conversion superheterodyne ? DSP
IF-freqs. ? ? ?
Image rejection ? ? ?
Audio output 3 W ? 1 Watt with 8 ohm speaker

Transmitter

TX-range 26.965-27.255 MHz 26.965-27.255 MHz 7-7.3 / 14-14.35 / 9.99-10.150 / 18.068-18.168 MHz
(40 / 30 / 20 / 17 m)
Modulations AM   AM   CW   SSB  
RF-output 5 W 3.5 W 5 W

Connections

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

Electrical

Power req. 12 V DC ? ?
Current RX ? ? 250-270 mA
TX ? ? 1200 mA

Physical

Manufactured Between 195x and 196x in USA Between 19xx and 19xx Between 2013 and 20xx in USA
Dimensions 157 × 55 × 222 mm
(6.18 × 2.17 × 8.74 in)
? 104 × 70 × 38 mm
(4.09 × 2.76 × 1.50 in)
Weight 2.30 kg (5.1 lbs) ? 360 gr (12.7 oz)
Form factor Mobile Base Station Portable

Other features

Memories 12 channels in 1 bank(s) 23 channels in bank(s) 8 channels in 1 bank(s)
Usage Citizen Band (27Mc) Citizen Band (27Mc) Amateur / Ham radio operators
Features PA output use in vehicle ? 128×64 pixels LCD
Accessories ? ? ?
MPN E.F.-JOHNSON-MESSENGER-III TOKAI-PW-005056 LNR-PRECISION-FX-000004