3.758MHz
Ian
Ian Jackson
writes
>Regular beeb every second. What is it?
>
Africa.
--
Ian
Brian Reay
news:fnKbD7lRiD$LF...@g3ohx.demon.co.uk...
I've heard it a few times in the past and assumed it was a beacon. Following
Ian's initial post I had a listen and put the audio through a spectrum
analyser. The beep is obvious when you listen to the audio but there is
another signal (which looks a bit like QRSS) a few hundred Hz higher and
another (slower) beep a few hundred Hz lower, which is less frequent. No
time to look further tonight but perhaps Ian (either one) can have a look.
Try something like Spectran or Spectrum Lab if you've not got a spectrum
analyser.
--
73
Brian G8OSN/W8OSN
www.g8osn.net
Ian Jackson
writes
weaker than the other, and occasionally seems to fade away for a few
seconds. I also occasionally get the impression that the weaker one is
very slightly delayed wrt the stronger (but keyed at same speed). The
filtering on my ancient TS520S is not sufficient to resolve them
separately.
They rise up from the noise in the middle of the afternoon, and are
fading away by the time I get going in the morning (!!). There is a
regular UK QSO on their frequency every afternoon, starting around 3pm.
There are a similar pair of (weaker) signals about 1kHz lower), and
another pair about 1kHz higher (again weaker). It is possible that they
are one signal (or one pair of signals), DSB suppressed carrier,
squarewave modulated.
--
Ian
Brian Reay
>>
> I hear two tones, but they are both in synchronism. I think that one is
> weaker than the other, and occasionally seems to fade away for a few
> seconds. I also occasionally get the impression that the weaker one is
> very slightly delayed wrt the stronger (but keyed at same speed). The
> filtering on my ancient TS520S is not sufficient to resolve them
> separately.
>
> They rise up from the noise in the middle of the afternoon, and are fading
> away by the time I get going in the morning (!!). There is a regular UK
> QSO on their frequency every afternoon, starting around 3pm.
>
> There are a similar pair of (weaker) signals about 1kHz lower), and
> another pair about 1kHz higher (again weaker). It is possible that they
> are one signal (or one pair of signals), DSB suppressed carrier,
> squarewave modulated.
Time permitting, I will listen again this evening.
Jim Stewart
"Brian Reay" <seewe...@invalid.com> wrote in message
news:Wg2Ln.86444$3a4....@newsfe30.ams2...
Ian Jackson
<seewe...@invalid.com> writes
or Middle East (Russia and to the south of it).
It's been there for years. Some pundit must know where it comes from.
--
Ian
luc...@eternal-flames.gov
<ianREMOVET...@g3ohx.demon.co.uk> wrote:
>It's been there for years. Some pundit must know where it comes from.
Mr. Benn
Is it possible that the signals are from more than one beacon synchronised
in time?
Jim Stewart
<luc...@eternal-flames.gov> wrote in message
news:mpkpv5lmbmgr3jrc0...@4ax.com...
"Nothing at 3757.60, but at 3757.00, I'm getting a ham operator, LSB ."
Shirley not .....
Ian Jackson
luc...@eternal-flames.gov writes
Good man.
The links to "The Pip"
http://www.brogers.dsl.pipex.com/page7.html
and then to the mp3 audio recordings
http://www.brogers.dsl.pipex.com/pipnor.mp3
http://www.brogers.dsl.pipex.com/pip.mp3
are interesting.
It's pretty certain that these are the signals we are hearing. The
'pips' (63 pulses a minute!) do seem a bit faster than usual, but I'll
check with a live signal tonight.
It says that the transmitter site is near the town of Krasnodar, in
Southern Russia - so obviously my guess as to its location was inspired
(but I'm not sure by what).
Presumably this answers the query from the OP's (the 'other Ian',
i...@lid.com) ?
--
Ian
Peter Able
"Ian" <i...@lid.com> wrote in message
news:hthbnh$mpm$1...@news.eternal-september.org...
> Regular beeb every second. What is it?
>
>
>
http://www.brogers.dsl.pipex.com/page7.html
Ian Jackson
<ianREMOVET...@g3ohx.demon.co.uk> writes
>http://www.brogers.dsl.pipex.com/pipnor.mp3
>It's pretty certain that these are the signals we are hearing. The
>'pips' (63 pulses a minute!) do seem a bit faster than usual, but I'll
>check with a live signal tonight.
>
Yes, the pips in the mp3 recording are running faster than what I'm
hearing tonight, live on ~3758kHz. I haven't counted a full minute's
worth, but they are running at around 55 pips per. Maybe the clock needs
winding up.
--
Ian
Ian
Cheers Ian, Brian, and others. It is nice to see that you can get a sensible
response on the newsgroup.