Signal/One CX-7A Desktop Shortwave Transceiver

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Enhancements compared to the Signal/One CX-7:
* Power supply protected to eliminate transient and surge problems;
* Broadened audio band pass filter to enhance lower frequency response;
* Vox turnon changed to cure syllable clipping;
* TVI and spurious outputs have reduced by changes to the RF driver circuitry.

Frequency range

RX-range
10-160 m
TX-range
10-160 m
HAM bands
-
Stability
-
Tuning steps
-
Filters
-

Find the Signal/One CX-7A on ebay

Receiver

Modulations
CW   USB   LSB   FSK  
Sensitivity
0.33 µV for 10 dB S+N/N at 10m (2 kHz bandwidth)
Selectivity
SSB: 2 kHz, 1.5:1 (-6 dB)
FSK: 1200 Hz, 2:1

Optional:
CW: 400 Hz, 4:1 and 300 Hz, 2:1
Receiver system
-
IF-frequencies
-
Image rejection
> 60 dB
Audio output
1 W

Transmitter

Modulations
CW   USB   LSB   FSK  
RF-Output
1-150 W (130 W max above 28 MHz)

Connections

Antenna
SO-239
Impedance
50 Ω

Electrical

Power requirements
Mains (115/230 V, 50-400 Hz)
Current drain RX
100 W
TX
400 W

Physical

Dimensions (w×h×d)
413 × 184 × 356 mm (16.26 × 7.24 × 14.02 in)
Weight
15.90 kg (35.1 lbs)
Form factor
Base Station
Manufactured
Between 1971 and 197x in USA

Other features

Memories
-
Usage
Amateur / Ham radio operators
Features + options
Dual VFO, built-in keyer and full QSK Advanced features for such an old radio.
60 dB attenuator
Accessories
-

Manuals, diagrams and brochures

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