We will be running a demonstration of data modes on the HF bands (RTTY and PSK31) so this is a good opportunity to see what is required to work these modes and discuss the theory and practicalities of operation.
RTTY mode is now quite old and started in the days when people were using mechanical teleprinters Yes they were as heavy as they looked!). There is no error correction on this mode but like morse it tends to get through most of the time. Of course we now use computers instead of teleprinters..
For more about RTTY have a look at -
PSK31 is more recent and is phase shift keying. It was designed as a modern replacement to RTTY and occupies a bandwidth of just 31Hz. Its growing in popularity...
For more about PSK31 have a look at -
We have booked a table for the Kempton Radio Fairs rally on the 19th April so we can discuss our preparations for that and of couse there will be tea and biscuits and maybe a raffle.
73 Rex and Tony
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