Uwe,
You will get some more receivers!
My idea to install a VLF rx system into the tree proceed faster then i
thought :-)
Am 15.02.2016 22:03, schrieb DK7FC:
More news: I managed to run 2 soundcards on a Raspberry Pi 2B. They are
streaming simultaneously. I will install this on the tree in the
forest. So one is stereo and for the 2 MF loops, the other one will be
mono and for VLF and will run on request or when there is plenty of
energy reserve. I will try to install an actice E field antenna there.
Experiments in the past have been very promising!
That was 2 days ago.
Yesterday i prepared the soundcard so it can be "unpluged" and "pluged"
by a GPIO pin. The soundcard consumes 19mA at 5VDC. Not much but why
not adding this feature, so i can save energy if VLF is not running.
See
https://dl.dropboxusercontent.com/u/19882028/VLF/VLF%20soundcard%20switchable%20by%20GPIO.jpg
Today in the morning i tested the loop in the office and later in the
afternoon i installed both on the tree.
https://dl.dropboxusercontent.com/u/19882028/VLF/Hule%20Hup%20VLF%20loop%2021m%20up.jpg
The loop is pointing N-S, i.e. in your direction.
There will be a VLF forest grabber soon. It is also a big advantage for
my next local VLF transmissions because i can observe the signal in
3.5km distance which is still the near field but far away to overload
the ADC...
Thanks for your transmissions. So far for now from here :-)
73, Stefan
Am 17.02.2016 17:54, schrieb [email protected]:
OK,
Paul.
Stefan, it was neither GI nor Ni.
you get some more opportunity:
carrier is on.
message:
start 2016-02-17 18:00:00
same settings but::
repeat on hour until the wx gets too bad.
Uwe/dj8wx
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