What frequency? What spacing between the peaks?
On VHF this effect can often be seen due to aircraft scatter, ie doppler
shifted returns as well as the direct one.
So lots of possible explanations.
Graham
On 19:59, Gerard Elijzen wrote:
I was in contact with a CW station recently and his
I suspect this is/was a MCW generated signal with a bit too much drive
applied. Thus over drive of any audio stage such as may occur when
feeding the computer output or sound card output to the microphone
input. In this configuration it is very easy to overdrive the first
stage, which
could be sending Audio tone CW from a sound card and overdriving?
Robin G1MHU
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One could think - after so many proposals on this thread - it's time for the originator to
clarify/exclude some of the suggestions?
Bert DL8BDF
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A distinct possibility. For those that have a P3/PX3/SDR Panadapter and
can hear WWV on several of its frequencies, compare the spectra of the
2.5 and 20 MHz transmissions with those of the 5, 10, and 15 MHz ones.
The 2.5 and 20 MHz transmitters are low level modulated followed by
linear
: elecraft@mailman.qth.net
Subject: Re: [Elecraft] CW reception with 3 peaks on PX3
could be sending Audio tone CW from a sound card and overdriving?
Robin G1MHU
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Check both I/Q plugs to insure they are all the way in. I have seen this
when the plugs are not completely plugged in. Push and rotate each plug for
a good connection..
--
View this message in context:
My P3 does that when the NB is on and the level is too high.
Myron
On 8/5/2015 11:41 PM, Gerard Elijzen wrote:
I was in contact with a CW station recently and his signal had 3 peaks on
my PX3.
Can anyone explain. The other station was using an ICOM 7410.
Submitted this
Gerald,
If you only saw it on one CW signal, I would suggest there is something
wrong with his transmission.
73,
Don W3FPR
On 8/5/2015 11:41 PM, Gerard Elijzen wrote:
I was in contact with a CW station recently and his signal had 3 peaks on my
PX3.
Can anyone explain. The other station
I've heard some South American stations using modulated CW (tone
modulated USB).This invariably produces sidebands.
If other signals don't show it, then it is possible you caught one of
those guys.
73 de Brian/K3KO
On 8/6/2015 11:47 AM, Myron Cherry wrote:
My P3 does that when the NB
Probably sidebands from stray modulation. Distance from carrier to one is the
freq of the modulating signal. I've very occasionally heard what sounds like
intentional MCW, you have to widen your filters to hear it but you can see it
on a P(X)3.
Fred K6DGW
Sparks NV
Gerard Elijzen
Mis-adjusted carrier null? PS hum?
73
Ken - K0PP
On Aug 5, 2015 9:42 PM, Gerard Elijzen vk2...@icloud.com wrote:
I was in contact with a CW station recently and his signal had 3 peaks on
my PX3.
Can anyone explain. The other station was using an ICOM 7410.
Submitted this also on the
Spurs, maybe? Meaning the TX station. Or maybe he was sending MCW
with a lot of distortion.
73,
matt W6NIA
On Thu, 06 Aug 2015 13:41:30 +1000, you wrote:
I was in contact with a CW station recently and his signal had 3 peaks on my
PX3.
Can anyone explain. The other station was using an
I was in contact with a CW station recently and his signal had 3 peaks on my
PX3.
Can anyone explain. The other station was using an ICOM 7410.
Submitted this also on the KX3 Yahoo forum and had 1 reply. Thanks for that.
Thought I might post it here in the hope to get an explanation. Have
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