Hi Paul, Uwe, VLF,
Am 17.02.2016 10:50, schrieb Paul Nicholson:
For now, stay with 16 bit CRC and use list length 1000
or less for 2 chars.
--
Paul Nicholson
--
RR. I set the list length to 1000 but still get NI. But just a single
time. But the false decodes become rare.
I will now go through all txt files hopefully containing Uwes message(s)
A temporary remote VLF grabber is at
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html
It is the N-S loop but as you can see the soundcard is not well
filtered. I will improve this. Since this afternoon i'm using a BC558C
between soundcard and loop, i.e. i use the 2V output of the soundcard
together with the PNP-transistor as a preamp. It makes a gain of about
10 dB! The next time i want to try a NPN transistor, a ZTX690B.
Unfortunately the Alphas are QRT in the moment. I would like to use them
to check if there happen some glitches from time to time. SL is locked
to DHO38 now.
I wonder why the sferics are much stronger then the background noise,
relative to the VLF grabber in the city
(http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber.html).
I'm still not sure if this is a very good sign but we will see very soon :-)
Uwe, maybe you could send a carrier for one or two hours on 8270.00 Hz?
So i could see if i can see you on the forest grabber :-)
73, Stefan
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