From: Rik Strobbe <rik.strobbe@kuleuven.be>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>
Thread-Topic: LF: SlowJT9 update (v0.9.14.0)
Thread-Index: AQHUpnI7xUtrR6Bn6kqroRvhGWiND6WqWXAAgABNPf4=
Date: Fri, 11 Jan 2019 22:11:52 +0000
Message-ID: <1547244705342.51617@kuleuven.be>
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Subject: Re: LF: SlowJT9 update (v0.9.14.0)
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Hello Stefan,

internal frequency conversion is on my to do list.
For now I am focussing on the implementation of uploading to PSKreporter, once that is done I will target the internal frequency conversion.
Unfortunately I have only limited time to work on SlowJT9 (not retired yet and lately a lot of work for UBA).

73, Rik  ON7YD - OR7T

________________________________________
Van: owner-rsgb_lf_group@blacksheep.org <owner-rsgb_lf_group@blacksheep.org> namens DK7FC <selberdenken@posteo.de>
Verzonden: vrijdag 11 januari 2019 19:29
Aan: rsgb_lf_group@blacksheep.org
Onderwerp: Re: LF: SlowJT9 update (v0.9.14.0)

Rik, LF,

Your latest version seems to work well, even here, with VAC included. No
crashes so far. The software is running in TX mode at JT9-10 since a few
hours, but no PA connected.
Also the slower scrolling spectrogram works well.

The only remaining problem may be the missing internal upconverter,
which, so far, forces all RX stations to leave their standard 'dial'
frequency (136.0 kHz or 474.2 kHz) or forces TX stations to transmit on
a frequency far below the frequencies used for WSPR and JT9-1.

Will someone transmit on LF over the weekend?

73, Stefan


Am 07.01.2019 13:53, schrieb Rik Strobbe:
> Dear all,
>
> Beta-release v0.9.14.0 of SlowJT9 has been uploaded, see http://www.472khz.org/SlowJT9/.
>
> Changes:
> -JT9-10 mode added.
> - Waterfall speed will adapt to selected JT9 submode.
> - Any (reasonable) value can be entered for tone spacing (allowing flexible frequency dividing of the modulated signal).
> - Lower frequency limit dropped to 200 Hz (was 400 Hz).
> - Option to discard the audio frequency limits added (Settings ->  Mode).
>    In that case the TX boundaries will be 100 - 4980 Hz regardless of the JT9 submode.
>    The RX boundaries however will still be limited by the resampling process:
>    JT9-1: 100 - 4980 Hz
>    JT9-2: 100 - 2240 Hz
>    JT9-5: 100 - 840 Hz
>    JT9-10: 100 - 415 Hz
> - Non fatal bug fixed that skipped PTT handling in the first TX cycle after 'Halt TX' was pressed.
>
> Bug reports, remarks and suggestions are welcome.
>
> 73, Rik  ON7YD - OR7T
>