just took a close look and noticed the 1 Hz spaced
lines around 137.5 kHz. They appear to be a replica of
the DCF77 timecode, including the minima at +-10 Hz corresponding
to the 100 ms carrier gaps. Have you tried listening on this frequency?
There must be some combination producing either the RF frequency (eg.
60 + 77.5 = 137.5 kHz) or your IF (12.5 kHz), perhaps including multiples
of the 10 kHz GPS reference. I just cant point my finger exactly on
how it happens.
Sent: Thursday, January 08, 2015 9:51 PM
Subject: LF: Old version OPERA >> ''Opera Fixed''
You have been on air last night in OP32?
Unfortunately i got no decode.
I guess it could be due to the local QRM which
is still high in this
location. My LF DX grabber shown the RX window looking
424uHz and with AGC.
If you continue to TX this night maybe,
would you like to try a
frequency which is clean on my side?
to get a decode from you, to reduce the ratio (FC received by
XNS) / (XNS
received by FC)