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Locked Release Candidate WSJT-X 2.6.0-rc1 #general
I never saw this effect: link https://www.dropbox.com/s/5csq20ase8h9xqs/Screenshot%202022-06-17%2012.00.54.png?dl=0
I have often seen a ghost signal with lower intensity, in previous versions, especially off 50Hz. In the decoding panel, however, there was only one line, the ghost images were not reported. This has never happened with such close signals, I think due to noise in my receiver or transmitter. Not a big deal, but in case of congested band it can be disturbing. Pietro I2OIM |
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Michael Black
That could be aircraft reflection. Just a touch of Doppler.
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Mike W9MDB On Friday, June 17, 2022, 06:39:07 AM CDT, Pietro Molina <pietro@...> wrote:
I never saw this effect: link https://www.dropbox.com/s/5csq20ase8h9xqs/Screenshot%202022-06-17%2012.00.54.png?dl=0 I have often seen a ghost signal with lower intensity, in previous versions, especially off 50Hz. In the decoding panel, however, there was only one line, the ghost images were not reported. This has never happened with such close signals, I think due to noise in my receiver or transmitter. Not a big deal, but in case of congested band it can be disturbing. Pietro I2OIM |
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Al Groff
It could also be caused a power line ( 50 hz in EU) induced AM modulation. It could be power supply ripple on the RF PA, AC modulating the TX audio tones and even RF coupled to the AC lines with a rusty joint and re radiated..
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AL, K0VM On 6/17/2022 6:46 AM, Michael Black via groups.io wrote:
That could be aircraft reflection. Just a touch of Doppler. |
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Jim Brown
On 6/17/2022 4:46 AM, Michael Black via groups.io wrote:
That could be aircraft reflection. Just a touch of Doppler.Those of us around San Francisco and San Jose see this pretty often, thanks to multiple airports with lots of traffic. I'm 20 miles from the nearest airport and see it often. 73, Jim K9YC |
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Yeah, I think the ghost is for this. Buto old WSJT-X does not list the
ghosts, only the most powerful signal. Pietro (via Tablet) Il ven 17 giu 2022, 20:29 Al Groff via groups.io <al.k0vm= yahoo.com@groups.io> ha scritto: It could also be caused a power line ( 50 hz in EU) induced AM |
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