Date
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Solar Outage
Ian Deans
I have never seen such a low signal as I saw today on my basic service as a result of solar outage. Weather conditions were good before,during and after.
Prior to the outage I had a signal of approx. 13.4dB and at its worst fell to 4.3dB with total signal loss. The basic losses started to show at about 5.4dB (which I would expect ) and total loss of signal at about 4.7dB.
Normally I would use one receiver for basic and HVS-1 but as a result of the solar outage I was using a single reveiver ( TBS 5927 ) with Modcode 8PSK,3/5.
Regards
Ian.
Prior to the outage I had a signal of approx. 13.4dB and at its worst fell to 4.3dB with total signal loss. The basic losses started to show at about 5.4dB (which I would expect ) and total loss of signal at about 4.7dB.
Normally I would use one receiver for basic and HVS-1 but as a result of the solar outage I was using a single reveiver ( TBS 5927 ) with Modcode 8PSK,3/5.
Regards
Ian.
Douglas Deans
On 28/02/2023 16:33, Ian Deans via groups.io wrote:
Completely agree.
That is the first time in my Eumetcast history (I started with Meteosat 6 !) that my Basic only system lost packets during solar outage.
My starting signal is lower than yours (about 12.00 dB on a perfect day, as it was this morning) and it too dropped into the 4's.
I have no explanation for that.
The lowest I have previously ever seen is about 5.8/5.9 with the same set up and signal quality, which avoids losses.
Regards,
Douglas.
I have never seen such a low signal as I saw today on my basic service as a result of solar outage. Weather conditions were good before,during and after.================================================================================================
Prior to the outage I had a signal of approx. 13.4dB and at its worst fell to 4.3dB with total signal loss. The basic losses started to show at about 5.4dB (which I would expect ) and total loss of signal at about 4.7dB.
Normally I would use one receiver for basic and HVS-1 but as a result of the solar outage I was using a single reveiver ( TBS 5927 ) with Modcode 8PSK,3/5.
Regards
Ian.
Completely agree.
That is the first time in my Eumetcast history (I started with Meteosat 6 !) that my Basic only system lost packets during solar outage.
My starting signal is lower than yours (about 12.00 dB on a perfect day, as it was this morning) and it too dropped into the 4's.
I have no explanation for that.
The lowest I have previously ever seen is about 5.8/5.9 with the same set up and signal quality, which avoids losses.
Regards,
Douglas.
geojohnt@aol.com
Ian and Douglas,
I was thinking the same thing this morning when my SNR went down lower than I thought it would - given that my max outage day is possibly 2 days away.
My Start SNR was around 13.7 and dropped to 6.4 dB.
Attached todays outage plot and you are both in the centre cone.
Red line is total sun/satellite/dish collinearity which moves south every day.
Regards,
John
On Tuesday, 28 February 2023 at 16:33:07 GMT, Ian Deans via groups.io <iandeans142@...> wrote:
I have never seen such a low signal as I saw today on my basic service
as a result of solar outage. Weather conditions were good before,during
and after.
Prior to the outage I had a signal of approx. 13.4dB and at its worst
fell to 4.3dB with total signal loss. The basic losses started to show
at about 5.4dB (which I would expect ) and total loss of signal at about
4.7dB.
Normally I would use one receiver for basic and HVS-1 but as a result of
the solar outage I was using a single reveiver ( TBS 5927 ) with Modcode
8PSK,3/5.
Regards
Ian.
