Hi Andrey,
Perhaps it is an idea to use 2 wires in parallel as the antenna wire. If you
connect the two wires together at the end, you have the possibility to fed a DC
current to the wire to melt the ice. A few Volt and a few Ampere should be
enough, so not much power waste. It could be fed by a standard AC-decoupling
network or can be injected during the TX breaks of your beacon by a relay (or
it can be done by hand from time to time ;-) ). So you could avoid the crash of
your wire...
What do you think? ;-)
73, Stefan/DK7FC
________________________________
Von: [email protected] im Auftrag von rn3agc
Gesendet: Do 28.01.2010 16:18
An: [email protected]
Betreff: Re: LF: QRP-beacon AGC
Thanks, Victor!
Experiment will not completely successful. At night, the antenna was covered
with ice,
the resonance shifted to 600 Hz. I discovered it at about 03 z and turned off
the transmitter.
Yet the beginning of the transfer could be seen on the grabber DF6NM.
73 Andrey
> Hello Andrey,
>
> just traces of your signal,
>
> 73
> Victor
> -----Oorspronkelijk bericht-----
> Van: [email protected]
> [mailto:[email protected]]Namens rn3agc
> Verzonden: woensdag 27 januari 2010 16:29
> Aan: [email protected]
> Onderwerp: Re: LF: QRP-beacon AGC (+ new announcement)
>
>
> Hello Nicolas, Markus, Victor, LF,
>
> Many thanks for the reports!
> I am very surprised such good results. Now I will try to further reduce
> power.
> Start the beacon today at 19 z. 137775.5, dfcw90.
> Power 5 W.
> Who will have the opportunity, please watch for the beacon.
>
> Thanks!
>
>
> 73 Andrey
>
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