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ALTERNATE
MODES
Brief
over view of experience and experiments with alternative modes of
communication.
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Using
the well established soundcard interfacing technique I have
developed a flexible interface between the computer and the TS430 HF
transceiver and the FT736R VHF / UHF transceiver. This has allowed
transmission and reception of SSTV (Slow Scan Television) on a
variety of bands through HF to high VHF bands and RTTY (Radio-Teletype)
and PSK31 on the 20 and 40 metre bands. The extremely narrow band
nature of PSK31 has proven very successful on both 20 and 40 metre
bands during the period of low solar activity with very large
numbers of stations world wide taking up this mode over recent
years.
I
have also had limited success in at least monitoring meteor scatter
stations using the WSJT
software developed by Joe Taylor (KIJT).
This is something that will need to be explored further in the
future!
In
mid 2007 I participated in a number of experimental contacts with
Tony Langdon (VK3JED) using a new digital voice mode called FRMDV.
Despite early difficulties we finally established a perfect high
audio quality link, but that is the nature of real digital
communication it either perfect or non-existent.
Also
see related pages:
Computer
to Radio Soundcard Interface Computer
Sound-card Interface for TS-430S
PSK31.
Brief overview of PSK31 and basic operating techniques.
Slow Scan Television.
Brief overview of modern SSTV (Slow Scan TeleVision) techniques.
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last revised 05 May, 2025
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