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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