Sorry please ingonre these 2 lines:
P5DX DB0AAA -10
DB0AAA P5DX R-14 QRZ
On Tue, Jul 18, 2017 at 11:00 AM, Adrian Fabry <yo2...@gmail.com> wrote:
> Hi all,
>
> with these 3 bits we can have 8 combinations, actually 7 usable, one is by
> default (let's say 000) for current messages types (standard of free).
>
> I would propose to use 1 combination (001) for DXpedition mode:
> - 001 when CQ or QRZ in DXpedition mode. This will instruct callers to
> spread in freq and to expect a shorter sequence.
> - 001 when DX is confirming the report from the caller. Will display a
> message like:
> *YO2NAA P5DX RRR QRZ*
>
> This message if decoded by YO2NAA will stop TX and prompt for LOG (if
> enabled).
>
> The full sequence:
>
> *=CQ P5DX PM29* - contains 001 - The* =* sign before CQ is displayed
> by WSJT to indicate DXped mode CQ. In addition can also be a different
> color)
> *P5DX YO2NAA KN05*
> *YO2NAA P5DX -17*
> * P5DX YO2NAA R-12*
> *YO2NAA P5DX RRR QRZ* - contains 001 (actually the message is YO2NAA
> P5DX RRR, but QRZ will be displayed by WSJT when detect 001)
>
> P5DX DB0AAA -10
> DB0AAA P5DX R-14 QRZ
> etc
>
> If the caller used TX2 instead of TX1:
>
> *=CQ P5DX PM29 * - contains 001
> *P5DX YO2NAA -12*
> *YO2NAA P5DX R-17*
> * P5DX YO2NAA RRR*
> *YO2NAA P5DX 73 QRZ* - contains 001
>
>
> Other combinations of the 3 bits can be used for contest modes. Can be
> different type of contests, MSK144 (CQ WW VHF) style or different.
>
> 73 Ady,
> YO2NAA
>
>
>
>
> On Wed, Jul 12, 2017 at 1:28 AM, Tim Carlson <t...@widehf.com> wrote:
>
>> Thanks, everyone for the discussion.
>>
>> The biggest takeaway for me is that I shouldn't use the wide graph to
>> determine the quality of the signal, which helps.
>>
>> I do have a waterfall display on my IC-7300, but it has nowhere near the
>> resolution of the wsjt-x wide graph so it’s not very helpful either.
>>
>> I’ll be quiet now! :)
>>
>> -Tim KD0GYG
>>
>> > On Jul 11, 2017, at 1:54 PM, James Shaver (N2ADV) <n2...@windstream.net>
>> wrote:
>> >
>> > If you throw attenuation at the signal and the issue goes away, the
>> cause is most likely on the receive side. It also helps to have a
>> panadapter available (something that isn't tied into the AF chain). The
>> waterfall itself should not be used to determine signal quality.
>> >
>> > 73,
>> >
>> > Jim S.
>> > N2ADV
>> >
>> >> On Jul 11, 2017, at 2:45 PM, Bill Somerville <g4...@classdesign.com>
>> wrote:
>> >>
>> >>> On 11/07/2017 19:12, Tim Carlson wrote:
>> >>> Would you consider that the first signal on the left is being
>> overdriven somewhat? Or is that just a consequence of a stronger signal?
>> Or is it some atmospheric condition causing the signal to spread?
>> >>>
>> >> Hi Tim,
>> >>
>> >> hard to tell but it is all too common for the Tx audio level fed to
>> the rig to be too high. This causes non-linearity and will almost certainly
>> widen the transmitted signal. The main product of clipping is harmonics but
>> if the sender is using the split operating facility that is largely
>> innocuous due to the harmonics being above 3000 Hz and attenuated by the
>> rig's Tx SSB filter low pass cut off. Still there is no excuse for over
>> driving the audio input to the rig and there is a secondary consequence. At
>> each frequency shift of the modulation there is a minimal phase
>> discontinuity, we shift the phase without a glitch but nevertheless it is a
>> discontinuity. These small discontinuities fractionally widen the signal
>> when the audio is correctly matched through to the transmitter but over
>> drive widens them considerably. This is what you are seeing, a horizontal
>> spike on the waterfall at each tone shift.
>> >>
>> >> You must also be careful about attributing blame in these situations,
>> all of the above can happen on the receiving side too, so check your own
>> house is in order before accusing another of having a poor signal.
>> >>
>> >> 73
>> >> Bill
>> >> G4WJS.
>> >>
>> >>
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>> >
>> >
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>>
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>
>
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