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Hello Stefan,
while the coil was inside i had a fire between the
wall,so i had to reduce the power,now i can make more power but i am very
carful.i measure the current outside the house .first the coil,then the meter
and then the antenna,i do not no the L on this moment because i am still
testing,
henny cpm
73's
----- Original Message -----
Sent: Tuesday, March 27, 2012 8:44
PM
Subject: Re: VLF: 8970Hz and
8970.022
Hi Henny, Chris, VLF
Am 27.03.2012 19:20, schrieb Chris
Dillon:
[...]
Henny - your signal is stronger with me now -
putting the coil outside seems to be working.
Yes, here
too. I wasn't sure if i actually saw your signal Henny. But now it becomes
more probably.
There are propagation effects on our 397 km distance,
diurnal QSB. I lost your trace at arround 12 UTC. It was visible in 424 uHz. A
frequency shift of some few mHz would really help to identify your signal. But
you would have to use SpecLab for that and use a locked sampling rate for
this. It can be done by using a small ferrite antenna, resonated to GQD. If
you use an audio amplifier it would be an easy procedure.
450 mA. Where
do you measure this current? In the cold end of the coil or outside the house?
I remember you have had 450 mA for a longer time now but its the first time we
can see your signal so well. Maybe a significant part of that current was
flowing back to earth before passing the radiation resistance. Then, the
actual antenna current is now 450 mA while it was say 200 mA where the
coil was inside.
How much L did you have to add to come to resonance again,
when the coil was placed outside?
73,
Stefan/DK7FC
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