Hi Paul,
On Sat, 11 Mar 2017, Paul Nicholson wrote:
Looking forward to that. The west end of the antenna
getting a bit tarnished and covered with cobwebs, while
the east end is clean and shiny.
What's your ERP at the moment with the new coil?
With the old coil, it was about 4 uW. It is presently only 0.4 uW and
this will be increased soon, by the grace of Mother Nature.
Stefan wrote:
It could be worth to run a carrier for a day or so.
No harm to try.
This was attemped. The coil survived, but the amp did not.
After much mucking about without a schematic, a fried pass
transistor was replaced in the preamp. The drive now goes
directly to the PA input, bypassing the preamp/reverb/bass/
treble/etc. These were not found to be particularly useful
for increasing the aerial current anyway.
Today we had a bit of wind. The tower supporting the far
end of my prized rotated L is now horizontal. Fortunately
this appears to the only casualty of the 95mph gusts.
Do you already have the necessary signal stability?
I was wondering that too.
It seems OK on Markus' high resolution spectrograms.
Would it help if another long carrier on 137.777 was
sent? It might help with the west end cobwebs!
73
Joe
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Paul Nicholson
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