On Monday 02 July 2007 12:07, Johan H. Bodin wrote:
> Hello Claudio,
>
> I measured the "backwave" from SAQ a couple of years ago
> and found it to be 17dB below the key-down level.
>
> > Any info about SAQ key-up ERP radiated?
>
> I have no exact figure but since the nominal output is 200kW,
> and if -17dB is still true, the key-up output power is around
> 4 kW (!)...
>
> I have been told that SAQ once held the "efficiency record"
> for VLF antennas, about 14%, but I have never got that figure
> confirmed so take it with a grain of salt. Anyway, the antenna
> efficiency is worse today than it was when SAQ was young and
> healthy because the performace of the ground system has
> deteriorated over time due to corrosion etc.
> 200 kilometers of copper wire was buried "by hand", without
> the aid of machines!
>
> 73
> Johan SM6LKM
TNX Johan.
73 de Claudio, ik2pii
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Claudio Pozzi - Happy Linux User - http://www.qsl.net/ik2pii
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