Not a trace Stefan,sorry,
73
Victor
-----Oorspronkelijk bericht-----
Van: [email protected]
[mailto:[email protected]]Namens Stefan Schäfer
Verzonden: vrijdag 19 november 2010 10:15
Aan: [email protected]
CC: Paul; Bernd Grupe
Onderwerp: Re: VLF: Long time transmission on earth antenna
Dear VLF,
It seems these batteries are not in best condition. The carrier got
weaker and weaker in the morning and disappeared arround 5 UTC.
The SMPS that drives the PA is designed to generate its own 15 V supply
once it started to run. But if the input voltage falls below 10V (or 9)
it shuts down. Seems that this has happend... The batteries have > 300
Ah in sum so it should have been no problem, actually...
I assume no one except me has detected anything?
BTW: The starting time was 15:30 UTC so the DFCW shift appeared at 23:30 UTC
73, Stefan/DK7FC
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