From: Rik Strobbe <rik.strobbe@kuleuven.be>
To: "rsgb_lf_group@blacksheep.org" <rsgb_lf_group@blacksheep.org>,
        "600MRG@mailman.qth.net" <600MRG@mailman.qth.net>,
        rsgb_lf_group
	<rsgb_lf_group@yahoogroups.co.uk>
Thread-Topic: SlowJT9 update (v0.9.10): tuning issue solved
Thread-Index: AQHUgObjLHsZQP4DfUWU6/b+f9ZG6w==
Date: Tue, 20 Nov 2018 15:37:05 +0000
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Subject: LF: SlowJT9 update (v0.9.10): tuning issue solved
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Hello Paul, all,

the tuning issue is solved (I hope) and the new installation file is uploaded.

73, Rik  ON7YD - OR7T

________________________________________
Van: owner-rsgb_lf_group@blacksheep.org <owner-rsgb_lf_group@blacksheep.org> namens N1BUG <paul@n1bug.com>
Verzonden: dinsdag 20 november 2018 16:07
Aan: rsgb_lf_group@blacksheep.org
CC: rsgb_lf_group
Onderwerp: Re: LF: SlowJT9 update (v0.9.10)

I just installed the new version here and have the TX audio problem
also. No tones, just occasional clicks. I made sure the TX slider is
properly set and sound card is properly selected, but still no TX tones.

73,
Paul


On 11/20/18 9:58 AM, Andy Talbot wrote:
> There is also another problem which 'could' be connected to the no audio,
> somehow.
>
> I unplugged the USB soundcard, then relaunched SlowJT9.   It had previously
> been directed to the now unplugged USB S/Card but instead of working out
> what to do and changing to the default (internal) S/C, it threw up an
> access violation message and I had to quit.    This happened each time I
> tried to launch.  The only solution was to plug the USB card back in,
> launch the programme and change the output soundcard to the internal one.
>
> Andy
> www.g4jnt.com
>
>
>
> On Tue, 20 Nov 2018 at 14:47, Andy Talbot <andy.g4jnt@gmail.com> wrote:
>
>> Nope, Rik.  I had thought  of that and it's set to maximum
>>
>> Just tested on my Desktop, and exactly the same problem.  No audio from
>> the default speakers.   So that's two PCs of different makes . Win versions
>> with teh same problem
>>
>> I also tried an external USB soundcard and directed the audio out to
>> that.  Also so sound (RH slider to max)
>>
>> I am getting some irregular clicks occasionally, on the USB soundcard, and
>> that also happened on the laptop once or twice
>>
>>
>> Andy
>> www.g4jnt.com
>>
>>
>>
>> On Tue, 20 Nov 2018 at 14:34, Rik Strobbe <rik.strobbe@kuleuven.be> wrote:
>>
>>> Hello Andy,
>>>
>>>
>>> the "power level" slider (at the right) is initially set to zero. Maybe
>>> that is the reason for no audio.
>>>
>>> I agree that this is confusing, but I have done this for safety reasons
>>> (I don't want have any transmitter "blown" because of a too high audio
>>> level).
>>>
>>>
>>> 73, Rik  ON7YD
>>>
>>>
>>> ------------------------------
>>> *Van:* owner-rsgb_lf_group@blacksheep.org <
>>> owner-rsgb_lf_group@blacksheep.org> namens Andy Talbot <
>>> andy.g4jnt@gmail.com>
>>> *Verzonden:* dinsdag 20 november 2018 15:24
>>> *Aan:* rsgb_lf_group@blacksheep.org
>>> *CC:* rsgb_lf_group
>>> *Onderwerp:* Re: LF: SlowJT9 update (v0.9.10)
>>>
>>> Rik
>>>
>>> I just tried installing this 0.9.10 version  on my Dell Inspiron laptop
>>> Win-10.  I set the soundcard correctly to  "Speakers / Headphones" and Tx
>>> tone to 1200Hz ,  hit enable Tx then  the 'Tune' button.   It shows as
>>> transmitting but there's no audio tone.     WSJT-X and other datacomms
>>> packages are working fine, both before and after trying
>>>
>>> Normally don't get any issues like this with the default (the only)
>>> soundcard present.
>>>
>>> I'll test on my other two PCs,  an HP Desktop with Win 7 and HP Notebook
>>>
>>> On a different matter, I'll be writing this up in the next RadCom "Data"
>>> column (February's)   Could you summarise the baud rates and frequency
>>> shifts finally settled.   There has been so much discussion and changes I
>>> lost track and haven't followed the latest version
>>>
>>> Andy
>>> www.g4jnt.com
>>>
>>>
>>>
>>> On Tue, 20 Nov 2018 at 13:50, Rik Strobbe <rik.strobbe@kuleuven.be>
>>> wrote:
>>>
>>>> Dear all,
>>>>
>>>>
>>>> I just uploaded a now beta-release of SlowJT9 (v0.9.10).
>>>>
>>>> The changes are
>>>>
>>>>
>>>> - JT9-2 and JT9-5 parameters changed to the original ones. The slightly
>>>> slower baudrates make better advance of the transmission cycle. In theory
>>>> this should improve S/N by 0.46 dB for JT9-2 and 0.74 dB for JT9-5.
>>>> *Be aware that due to the baudrate changes there is NO BACKWARD
>>>> COMPATIBILITY for JT9-2 and JT9-5. *
>>>> *In other words: JT9-2 and JT9-5 send with v0.9.10 cannot be decoded
>>>> with prior versions (v0.9.00 - v0.9.03) and vice versa.*
>>>>
>>>> The JT9-1 mode however is still the same and can be sent / received with
>>>> all versions (and is WSJT-X compatible).
>>>>
>>>>
>>>> - JT9-10 mode (10 minute cycle) added, for the fearless.
>>>>
>>>>
>>>> I briefly tested v0.9.10 for in JT9-2 mode and it seems to decode (at
>>>> least) at the same level as for the previous versions. But to determine a
>>>> difference of 0.4dB, more extensive tests are needed.
>>>>
>>>> *The sole purpose of this version is to determine how JT9-2, and
>>>> eventually JT9-5, behave in relation to the previous versions, so we can
>>>> decide wether SlowJT9 will proceed with the original parameters (anno
>>>> 2013) that imply an odd baudrate ratio between the JT9 submodes or my
>>>> previous parameters, with "round number" ratios. *
>>>>
>>>> *Therefore all test reports, remarks, suggestions and opinions are most
>>>> welcome.*
>>>>
>>>> For the same reason no other changes are applied.
>>>>
>>>>
>>>> Whoever is interested can download the SlowJT9 installation file at
>>>> http://472khz.org/SlowJT9/SlowJT9_setup.exe.
>>>>
>>>>
>>>> For now only a Windows version of SlowJT9 is available. But as the used
>>>> IDE has cross platform facilities it should be possible to support other
>>>> operating systems as well in the future.
>>>>
>>>> 73, Rik  ON7YD - OR7T
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>

--
Paul
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