Hi Paul,
Thanks for the analysis.
Well with 19.8 dB in 92.6 uHz, my currently running transmission is
maybe to optimistic. Then we are very very very very close to the limit!
http://abelian.org/ebnaut/calc.php?sndb=19.8&snbws=0.000092&snmps=&code=16K25&sp=4&crc=10&nc=30&submit=Calculate
The parameters were based on:
Am 14.04.2017 18:47, schrieb Paul Nicholson:
Stefan today is averaging 0.25 fT and 25.8 dB S/N in 69.4 uHz.
...but that was a very quiet day.
But today the 5...8 UTC SNR is 19.5 dB, yesterday it was 17.4 dB. So
maybe with some luck it is a quieter day and we can expect a bit more
than 19.8 dB between 8...11 UTC.
Fingers crossed...
73, Stefan
Am 19.04.2017 10:28, schrieb Paul Nicholson:
Stefan wrote:
> The carrier will stay on air for at least 1 day,
Here's the complete measurement:
S/N in 92.6 uHz, absolute phase, flux density
20:00 to 23:00 19.6 dB +14.5 deg 0.25 fT
23:00 to 02:00 14.5 dB -3.2 deg 0.22 fT
02:00 to 05:00 16.5 dB +16.4 deg 0.18 fT
05:00 to 08:00 17.4 dB +51.5 deg 0.15 fT
08:00 to 11:00 19.8 dB +68.3 deg 0.20 fT
11:00 to 14:00 19.7 dB +62.3 deg 0.19 fT
14:00 to 17:00 18.9 dB +65.2 deg 0.20 fT
17:00 to 20:00 17.5 dB +22.8 deg 0.25 fT
20:00 to 23:00 12.4 dB +4.0 deg 0.20 fT
23:00 to 02:00 17.0 dB +6.6 deg 0.28 fT
02:00 to 05:00 16.9 dB +27.9 deg 0.20 fT
05:00 to 08:00 19.5 dB +64.2 deg 0.20 fT
Looks pretty steady with repeatable diurnal.
--
Paul Nicholson
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