Signal graphs
#20
Hi All
I now have my linear power supply running and shielded cables. The Vin is showing at 4.50 with a very thin trace although at the supply terminals it is a steady 4.99V.
It has made a small difference and I get quite good signals on channel 1 (watching the live maps my C1 [N/S ferrite] coincides with observed flashes and the site comes up on maps from time to time) - but very little in signals on C2 [E/W]. C1 has quite a lot of 40,60,80 Khz noise but still works. Maybe LP filters ?  I soldered tails on the ferrite leads and thought there might be high resistance across the leads but it was nil.
In preparation for fitting filters I looked for the jumper mentioned but could not find it on blue board 19.3.
Regards
Alan
Stations: 2004
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Messages In This Thread
Signal graphs - by Alanpenwith - 2017-09-15, 17:48
RE: Signal graphs - by cutty - 2017-09-15, 18:09
RE: Signal graphs - by readbueno - 2017-09-15, 18:42
RE: Signal graphs - by Alanpenwith - 2017-09-16, 12:42
RE: Signal graphs - by readbueno - 2017-09-16, 13:33
RE: Signal graphs - by Andrew.Instone-Cowie - 2017-09-16, 20:44
RE: Signal graphs - by Alanpenwith - 2017-09-16, 13:42
RE: Signal graphs - by readbueno - 2017-09-16, 14:21
RE: Signal graphs - by pasense - 2017-09-16, 15:50
RE: Signal graphs - by Alanpenwith - 2017-09-17, 07:23
RE: Signal graphs - by Alanpenwith - 2017-09-17, 08:23
RE: Signal graphs - by Andrew.Instone-Cowie - 2017-09-17, 16:27
RE: Signal graphs - by mwaters - 2017-09-17, 18:08
RE: Signal graphs - by mwaters - 2017-09-25, 19:16
RE: Signal graphs - by readbueno - 2017-09-17, 08:29
RE: Signal graphs - by Alanpenwith - 2017-09-17, 17:38
RE: Signal graphs - by readbueno - 2017-09-17, 18:58
RE: Signal graphs - by Alanpenwith - 2017-09-21, 06:53
RE: Signal graphs - by Andrew.Instone-Cowie - 2017-09-21, 07:22
RE: Signal graphs - by allsorts - 2017-09-22, 23:23
RE: Signal graphs - by Alanpenwith - 2017-09-23, 08:10
RE: Signal graphs - by Alanpenwith - 2017-09-23, 09:06
RE: Signal graphs - by pasense - 2017-09-23, 09:29
RE: Signal graphs - by readbueno - 2017-09-23, 11:38
RE: Signal graphs - by Alanpenwith - 2017-09-23, 16:42
RE: Signal graphs - by readbueno - 2017-09-23, 17:18

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