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Hello
Markus,
how accurate can you receive a 60 KHz time signal,I
don't know. If there is no doppler
shift or simmilar effects it should be spot on at the 0.00Hz marker.Then Henny's
freq should be 8970.0237Hz....
The beads are probably caused by the computer,I don't
see them on a laptop but the laptop drifts much
more.
Hope this helps you,
73
Victor
PS looking ar RWM at 9.996MHz in a qrss60 screen shows
dopplershift up to 2Hz during a day.
Hi Victor,
nice signal from Henny, without any visible
drift. How accurate is the displayed frequency, 8970.0237 Hz?
Do you have an idea about the regularly
spaced "beads" on the line? Looks almost like 180° phase
inversions. Is that an intentional modulation? Similar effects could
be caused by buffer underflows in one of the soundcards, eg. due to
samplerate oddities.
Best regards,
Markus (DF6NM)
Sent: Wednesday, March 09, 2011 7:32 PM
Subject: LF: 8970.025
HI all,
attached a picture from Henny's signal the last 24 hours
that shows the
total drift of his tx,my rx and the soundblaster audigy
soundcard.Not much
to see with a noisebandwidth of 438 uHz.
No locking
to gps or wathever.The signal at 0.00Hz is Rugby at 60 KHz to
check my
rx.
73
Victor
PA3FNY
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