[Lowfer] WE2XGR/2 in JT9-10 mode

John Andrews w1tag at charter.net
Sun Oct 28 09:11:51 EDT 2012


Finally got a decode!

JA

On 10/28/2012 8:49 AM, jrusgrove at comcast.net wrote:
> Also, may have to reset the green passband marker to 1450 after the change.
>
> Jay
>
> ----- Original Message -----
> From: <jrusgrove at comcast.net>
> To: "Discussion of the Lowfer (US, European, &amp;UK) and MedFer bands" <lowfer at mailman.qth.net>
> Sent: Sunday, October 28, 2012 8:44 AM
> Subject: Re: [Lowfer] WE2XGR/2 in JT9-10 mode
>
>
>> Crank up the FFT Bins/pixel
>>
>> Jay W1VD  WD2XNS  WE2XGR/2
>>
>>
>> ----- Original Message -----
>> From: "John Andrews" <w1tag at charter.net>
>> To: "Discussion of the Lowfer (US, European, &amp;UK) and MedFer bands" <lowfer at mailman.qth.net>
>> Sent: Sunday, October 28, 2012 8:47 AM
>> Subject: Re: [Lowfer] WE2XGR/2 in JT9-10 mode
>>
>>
>>> At least on this computer, WSJT-X, the low end of the receiving passband
>>> appears to be 1000 Hz, with no option to change it. For the JT9-2 tests
>>> last night, this was no issue, as the 1400-1500 Hz tones fell in the
>>> wider passband. But for JT9-10, you are stuck with 1000-1100 Hz.
>>>
>>> So, I would suggest a USB dial frequency of 494.800 for this morning's
>>> tests. Quirky.
>>>
>>> John, W1TAG
>>>
>>> On 10/28/2012 8:04 AM, jrusgrove at comcast.net wrote:
>>>> WE2XGR/2 will be testing in WSJT-X JT9-10 mode for the next few hours on 494.400 dial (+1450).
>>>> This
>>>> mode has a theoretical s/n threshold of -37 dB (relative to a 2500 Hz BW). Reports are
>>>> appreciated.
>>>> Note that it may or may not be necessary to close and restart the program after a mode change
>>>> ...
>>>> it
>>>> seems to be required in transmit mode.
>>>>
>>>> Also, rather than using the 'canned'  CQ message when in beacon mode, the transmission will be
>>>> WE2XGR/2 TEST ... which the program accepts ... probably a good idea for all stations
>>>> transmitting
>>>> in beacon mode.
>>>>
>>>> Jay W1VD  WD2XNS  WE2XGR/2
>>>>
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>>>>
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>
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> No virus found in this incoming message.
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