Sorry, I just see i missed to insert the resistive load to the plate
that is used to inject some signal into the mic input (when TXing on
VLF). Now the mic input is totally overloaded when i TX on LF. This way
the phase stabilisation and compensation of eventual phase glitches
will not work.
Since i am already at home, i have to delay the experiment :-( . Maybe
tomorrow ...
73, Stefan
Am 14.01.2019 22:16, schrieb DK7FC:
PS: Repeatinh hourly, until including 6 UTC.
Am 14.01.2019 22:13, schrieb DK7FC:
Hi LF,
Just a short EbNaut message tonite. I'm interested to see the phase
changes on a long path. Markus's showrawsyms does a good job there, as
long as 8K19A is used. A shorter message should also help to build up a
clear trace.
So let's try an unusual short message:
f = 137.545 kHz
Start time: 14.JAN.2019 22:00:00.3 UTC
Symbol period: 4 s
Characters: 4
CRC bits: 16
Coding 8K19A
Antenna current: 4 A
Duration: 30:56 [mm:ss]
Reports, including phase plots, welcome :-)
73, Stefan
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