PSK31
(Phase Shift Keying with 31 Baud and 75 Hz bandwidth)
| PSK31 is a digital operating mode for text transmission. PSK31 allows a communication speed of about 50 words per minute. The signal is coded and decoded by the PC soundcard using a special program. The type of modulation (phase shift modulation) allows to operate with a very low bandwidth, in the order of 75 Hz. This way, far distance communication (over 5000 km) becomes possible using low power output (5 to 10 W). | ||
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PC with soundcard, PSK31 decoder program and a shortwave receiver | |
| Listen to a PSK31 signal | ||