PSK08 is a modification to the PSK31 data waveform, now very popular
on HF, but operating at a quarter of the signalling rate, ie. 7.8
Bits/s. I modified G3PLX's software for the Motorola 56002EVM board
to generate this mode and use it with a version of his Windows driver
software for PSK31.
To operate, you will need an EVM board, available from a number of
suppliers - UK prices range from around £120 upwards. Unfortunately
this board is now obsolete as Motorola no longer make it, but there
are good stocks still among the suppliers and no doubt an improved
replacement will be available soon although this will need some
software to be rewritten. A copy of the PSK08 software has gone to
Ko Versteeg NL9222 and he intends placing this on his website soon.
In use, it looks exactly like PSK31 - at least the EVM version of the
mode - except running much slower. The tuning waterfall display does
not function properly, but if the mode becomes popular on LF hopefully
it may be possible to persuade G3PLX to modify the driver prog for the
PC to accommodate this. You will need to be able to set frequency
accurately to 1 Hz although much of the fine frequency setting can be
done by software.
A linear transmitter such as a transverter and G0MRF type PA will of
course be necessary.
Andy G4JNT
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From: Holger 'Geri', DK8KW[SMTP:[email protected]]
Can you tell me more about PSK08, Andy? What kind of
harware/software would
I need ($?).
Thanks, best 73
Geri, DK8KW (W1KW)
