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Hi Paul, Stefan
I hope i have solved the problem. The antenna current with 332mA
was to much. The Amplifier switched off. Now I am using 240mA.
and try again. Transmission was running the last 2 hours, almost
all the time which 320mA.
73
Roland
Am 25.04.2016 um 19:32 schrieb DK7FC:
Hi
Paul, VLF,
Wonderful! I like the long messages. The next one will be even
longer.
You may have noticed that there was an 'issue' again with my
system. This time the power supply collapsed :-) But the PA is my
own construction and so i would understand and know how to repair
it!
Will repair the supply now an d then back on air. Message
announcement will follow.
Ah and i ordered 2 feed-through ceramic isolators from ebay lat
night
(http://www.ebay.de/itm/14-Euro-fur-1-Paar-d-h-2-Stucke-Antennen-Durchfuhrungsisolator-aus-Keramik-/131791851901?hash=item1eaf68117d:g:4~MAAOSwCypWpURh
).
Hopefully the creepage distance is high enough :-)
73, Stefan
Am 25.04.2016 10:27, schrieb Paul Nicholson:
Stefan wrote:
> f = 8270.1 Hz
> start 24.04.2016 20:10:02
> coding 8K19A
> CRC 16
> period 30
> length 7
Another success.
Copied 'DREAMER' at rank 3, Eb/N0 = +0.8, BER 34.5%, constant
reference phase. Signal averages 16.04 dB in 54.8 uHz.
A good result, considering the overnight noise.
--
Paul Nicholson
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