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Thank you Vinny, for
the nice idea and the invitation to the party!
For me, it sure was a lot of fun, and resulted in a
number of JT9 QSO's with OR7T, DG0RG, SV8CS, SV3DVO, DL6II, DD2UJ, IW4DXW,
LA8AV, F6CNI, and DK7FC. Most signals were promptly decodable (except
for my report from DL6II which was lost due to temporary drift). A copy of
my receive log is at http://df6nm.bplaced.net/MF/jt9_party_160319.txt .
But operating workflow was not easy for me. I don't
have an MF SSB transmitter available here, just an AD8950 DDS-board with
a three-wire serial interface. So I decided to modify my homemade WSPR
software, such that it reads a message from the command line, converts it to
tone numbers by calling Joe's JT9CODE.EXE, and plays it at the beginning of the
next minute. Lacking the "late-start feature", the text had to be typed and
ready on time, and it was practically impossible to immediately reply to a
decoded message. This was further exacerbated by the lack of
automatic message generation ("three click QSO"),
and some uncertainties of shorthand versus free-text
length. I'm sorry if I have been taxing the patience of my QSO
partners!
Regarding the receive software, if I had two free
wishes this is what I would suggest:
- Show decodes as spectrogram labels:
Coming from visual QRSS, I like to "see" who I
work. With many stations in the spectrogram, it can
be challenging to keep an oversight on who is who, and on which
frequency. It would be nice to see the decoded messages as labels
near or on the traces in a wide horizontal spectrogram. replying by
clicking on colour-highlighted labels would seem more intuitive than
clicking in the separate text decode window.
- Show partial decodes:
When the signal is not too weak, the
software could already attempt to decode a message before it has
been completely received. Decoding zero padded audio (e.g. two extra times
after 30 and 40 seconds) would give the operator significantly more time to
think up an appropriate (non-automatic) response.
Best 73,
Markus (DF6NM)
Sent: Saturday, March 19, 2016 10:38 PM
Subject: LF: JT9 Activity right now
Ufb activity right now with a few new stations in JT9 mode. Feel
free to join the QSO party!
73
Vincent, DL6II
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