[600MRG] [rsgb-lf-group] SlowJT9 update (v0.9.14.0)

Steve Elliston sgelliston at gmail.com
Mon Jan 7 08:40:25 EST 2019


Rik / All,
I'm receive only on LF - when I'm monitoring the 2200m band - as I try to
do H24/365 - how will I know what Mode is active?
Would the best way be to run separate JT9-1 to JT9-10 windows?
Or could there be a way, on receive, of auto-switching modes according to
the sub-mode time boundaries?
(I hope I'm not displaying my ignorance - I'll offer my sniffling cold as
mitigation!)
73
Steve
G3XKR

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On Mon, Jan 7, 2019 at 12:54 PM Rik Strobbe <rik.strobbe at kuleuven.be> wrote:

> 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
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