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CHRISTIAN PRÖHL



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Keyboard Keyer CWKtiny

A self-contained unit with PS/2 keyboard interface suitable for CW operation, CW practising or as a control device for beacons (including QRSS support), repeaters, transponders etc. The keyboard layout can be adapted for different languages by software.

QRPP/QRSS Beacon TX

A home-made 10.140.xxx MHz QRPP beacon transmitter used for investigation of propagation conditions on 30 meters.

Soundcard Isolator

This interface completely isolates your radio from the soundcard, i.e. the audio lines as well as the power supply using opto couplers and a DC-DC converter, respectively.









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