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Desktop Transceiver
Headless HF/VHF/UHF Scanner / receiver
Desktop HF/VHF/UHF Scanner / receiver

General

HAM bands 11m (CB)  ? ?
Freq. stability ? 10 ppm (0 to 60 C) ?
Tuning steps Channelized 1 Hz kHz 5 / 6.25 / 10 kHz

Receiver

RX-range 11 m (26.965-27.405 MHz) 9 kHz - 30 MHz 0.53-1.7 (AM) / 25-54 / 88-174 / 406-512 MHz
VHF/UHF TV channels
Modulations AM   N-AM   AM   CW   USB   LSB   DSB   AM   FM   W-FM  
Sensitivity ? Mode 0.1-0.5 MHz 0.5-2.0 MHz 2.0-30 MHz
AM* 2.0µV 0.5µV 0.4µV
LSB, USB 0.7µV 0.3µV 0.2µV
CW 0.3µV 0.2µV 0.1µV

(10dB S+N/N)
* 80% modulation
0.5 µV 0.53-1.70 MHz
0.4 µV 25-27.995 MHz
0.3 µV 28-54 MHz
0.8 µV 59.75-107.9 MHz
0.4 µV 108-136.9875 MHz
0.3 µV 137-174 MHz
1.0 µV 179.75-215.75 MHz
0.3 µV 406-512 MHz
Selectivity ? Continuously adjustable 100-15000 Hz ?
Filters ? ? ?
Receiver system ? DDS-based dual-conversion superheterodyne with software-defined last IF stage and demodulator ?
IF-freqs. ? ? ?
Image rejection ? 60 dB ?
Audio output ? ? 0.9 W max

Transmitter

TX-range 11 m (26.965-27.405 MHz) - -
Modulations AM   - -
RF-output 5 W ? ?

Connections

Antenna SO-239 SMA BNC + Built-in ferrite bar + Built-in telescopic
Impedance ? 50Ω 50 Ω
Other - - -

Electrical

Power req. Mains 12V DC Mains or 12V DC
Current RX ? 500mA ?
TX ? - -

Physical

Manufactured Between 1958 and 196x in USA Between 200x and 200x Between 200x and 200x
Dimensions ? 164 × 96 × 41 mm
(6.46 × 3.78 × 1.61 in)
209 × 148 × 81 mm
(8.23 × 5.83 × 3.19 in)
Weight ? 467 gr (1.0 lbs) 625 gr (1.4 lbs) without antenna
Form factor Base Station Headless Base Station

Other features

Memories ? ? 100 channels in 10 bank(s) @ 60 channels/second
Usage Citizen Band (27Mc) Marine / Navy Amateur / Ham radio operators
Features XTAL DSP
Trunking option
12 kHz IF2 output
Number of memory channels limited by computer memory
Clock
Weather scan
TV reception (audio)
Accessories ? ? ?
MPN EF-JOHNSON-MESSENGER-I WINRADIO-WR-G000033EM UNIDEN-BEARCAT-BC000340-CRS