2750KHz odd sound

mi...@sushi.com

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Mar 22, 2008, 5:55:02 PM3/22/08

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http://www.lazygranch.com/sound/shortwave/2750khz.ogg
SF Bay area approx 9GMT 3/22/2008
2750Khz AM 9.5kHz filter

Telamon

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Mar 22, 2008, 6:10:16 PM3/22/08

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In article
<83f52918-9baf-4818...@a1g2000hsb.googlegroups.com>,
mi...@sushi.com wrote:

What is the file format?

--
Telamon
Ventura, California

mi...@sushi.com

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Mar 22, 2008, 6:18:56 PM3/22/08

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On Mar 22, 3:10 pm, Telamon
<telamon_spamshi...@pacbell.net.is.invalid> wrote:
> In article
> <83f52918-9baf-4818-9841-a8f7690e7...@a1g2000hsb.googlegroups.com>,

>
> m...@sushi.com wrote:
> >http://www.lazygranch.com/sound/shortwave/2750khz.ogg
> > SF Bay area approx 9GMT 3/22/2008
> > 2750Khz AM 9.5kHz filter
>
> What is the file format?
>
> --
> Telamon
> Ventura, California

Ogg. It plays in winamp, irfanview, videolan.

mi...@sushi.com

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Mar 22, 2008, 6:25:08 PM3/22/08

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A few days ago they were doing what I call "ding dong whoop." Then 2
second beep, 4 seconds off. I didn't record those events.

Mats Peterson

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Mar 22, 2008, 7:02:59 PM3/22/08

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Trying to advocate the use of Ogg Vorbis are we?
Just kidding.

--
Mats

msg

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Mar 22, 2008, 9:08:23 PM3/22/08

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mi...@sushi.com wrote:

>>>http://www.lazygranch.com/sound/shortwave/2750khz.ogg
>>>SF Bay area approx 9GMT 3/22/2008
>>>2750Khz AM 9.5kHz filter

Hmm, your original post never arrived at Supernews.

Interesting; sounds like some sort of channel
calibration/equalization/training. What were your
receiver settings (mode, filter widths, processing)?

When I first began listening, my impression was of
out-of-band interference from a paging transmitter
or trunking public service repeater slowed _way_ down.

Michael

Telamon

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Mar 22, 2008, 8:45:46 PM3/22/08

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In article
<daeb3461-a8d2-4c87...@s37g2000prg.googlegroups.com>,
mi...@sushi.com wrote:

> On Mar 22, 3:10 pm, Telamon
> <telamon_spamshi...@pacbell.net.is.invalid> wrote:
> > In article
> > <83f52918-9baf-4818-9841-a8f7690e7...@a1g2000hsb.googlegroups.com>,
> >
> > m...@sushi.com wrote:
> > >http://www.lazygranch.com/sound/shortwave/2750khz.ogg
> > > SF Bay area approx 9GMT 3/22/2008
> > > 2750Khz AM 9.5kHz filter
> >
> > What is the file format?
> >
>

> Ogg. It plays in winamp, irfanview, videolan.

I down loaded the free videolan player. Nice app.

I think someone is testing a transmitter. It just sounds to me to be a
series of tones low to high and at one point a tone ramp.

If I'm awake at 2 AM I'll give it a listen.

--
Telamon
Ventura, California

mi...@sushi.com

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Mar 22, 2008, 8:46:26 PM3/22/08

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On Mar 22, 6:08 pm, msg <msg@_cybertheque.org_> wrote:

I already stated the receiver was in AM mode using the 9.5Khz
bandwidth. No processing.

mi...@sushi.com

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Mar 22, 2008, 8:51:40 PM3/22/08

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On Mar 22, 4:02 pm, Mats Peterson <matsp...@yahoo.com> wrote:

I've been uploading audio in ogg for years.
http://www.lazygranch.com/red_audio.htm
http://www.lazygranch.com/janet_audio.htm

While not much of an advantage for mono, ogg is very useful for stereo
scanner recording. That is, you record two scanners in real time. MP3
will share the audio between channels, while ogg behaves as if each
channel is discrete.

I try to use open source standards where possible, i.e. LAME or Ogg
versus mp3. FLAC versus whatever crap Apple is pushing lately.

Message has been deleted

msg

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Mar 22, 2008, 9:56:57 PM3/22/08

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mi...@sushi.com wrote:

Sorry, in the clutter of quoted material and since I was
distracted by the lack of the original post, I simply
missed that.

Michael

mi...@sushi.com

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Mar 22, 2008, 10:03:30 PM3/22/08

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On Mar 22, 5:45 pm, Telamon
<telamon_spamshi...@pacbell.net.is.invalid> wrote:
> In article
> <daeb3461-a8d2-4c87-a018-7ddcffbd4...@s37g2000prg.googlegroups.com>,

That is my guess too. The signal itself doesn't sound "informative",
i.e. no modulation.

The allocation for that frequency isn't all that strict(fixed, mobile,
some aero), but given the power and consistency, it is fixed.

Telamon

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Mar 22, 2008, 10:12:59 PM3/22/08

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In article
<38bd13cf-74da-4aab...@u10g2000prn.googlegroups.com>,
mi...@sushi.com wrote:

> On Mar 22, 5:45 pm, Telamon
> <telamon_spamshi...@pacbell.net.is.invalid> wrote:
> > In article
> > <daeb3461-a8d2-4c87-a018-7ddcffbd4...@s37g2000prg.googlegroups.com>,
> >
> > m...@sushi.com wrote:
> > > On Mar 22, 3:10 pm, Telamon
> > > <telamon_spamshi...@pacbell.net.is.invalid> wrote:
> > > > In article
> > > > <83f52918-9baf-4818-9841-a8f7690e7...@a1g2000hsb.googlegroups.com>,
> >
> > > > m...@sushi.com wrote:
> > > > >http://www.lazygranch.com/sound/shortwave/2750khz.ogg
> > > > > SF Bay area approx 9GMT 3/22/2008
> > > > > 2750Khz AM 9.5kHz filter
> >
> > > > What is the file format?
> >
> > > Ogg. It plays in winamp, irfanview, videolan.
> >
> > I down loaded the free videolan player. Nice app.
> >
> > I think someone is testing a transmitter. It just sounds to me to be a
> > series of tones low to high and at one point a tone ramp.
> >
> > If I'm awake at 2 AM I'll give it a listen.
> >
>

> That is my guess too. The signal itself doesn't sound "informative",
> i.e. no modulation.
>
> The allocation for that frequency isn't all that strict(fixed, mobile,
> some aero), but given the power and consistency, it is fixed.

The series of tones and tone ramp could be a test of the transmitter
modulation capabilities.

--
Telamon
Ventura, California

Burr

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Mar 22, 2008, 11:20:30 PM3/22/08

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"Telamon" <telamon_s...@pacbell.net.is.invalid> wrote in message
news:telamon_spamshield-2...@newsclstr02.news.prodigy.com...

Nothing in Asia but static 0317z 080323

Telamon

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Mar 22, 2008, 11:41:04 PM3/22/08

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In article <13ubj3v...@corp.supernews.com>,
"Burr" <pitz...@earthlink.net> wrote:

It's still to early for you. Try again later.

--
Telamon
Ventura, California

m II

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Mar 23, 2008, 2:04:43 AM3/23/08

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mi...@sushi.com wrote:

> I try to use open source standards where possible, i.e. LAME or Ogg
> versus mp3.

Lame is a means of encoding mp3, not the format itself.

mike

RHF

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Mar 23, 2008, 4:11:57 AM3/23/08

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On Mar 22, 2:55 pm, m...@sushi.com wrote:

M...Sushi,

Tuned 2750 kHz @ 0:749~07:52 UTC

Sounds like Garbled Voice in AM

LSB sound was weaker.

USB almost could understand the {Male?} Voice.

Tuned up and down the Band 1000 Hz in
both AM and USB with no better results.

At 07:52 UTC the Signal was gone. ~ RHF
.
RHF's Radio Shack in Twain Harte, California -USA-
SHACK INFO => http://tinyurl.com/2skmxm
Shortwave Radio / Receiver and SWL Antenna Info
.

Burr

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Mar 23, 2008, 5:50:40 AM3/23/08

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"RHF" <rhf-new...@pacbell.net> wrote in message
news:cffae9a8-76ff-4b9d...@d4g2000prg.googlegroups.com...

M...Sushi,

LSB sound was weaker.

How that's a nice Sig block.
I don't have a site (or to dumb to set it up),
But maybe I'll learn just so I can have a sig like that.

Burr

Ian Jackson

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Mar 23, 2008, 11:59:44 AM3/23/08

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In message
<telamon_spamshield-6...@newsclstr02.news.prodigy.com>,
Telamon <telamon_s...@pacbell.net.is.invalid> writes

Second harmonic of MW transmitter (either transmitted, or generated in
your receiver)?
--
Ian

Ron Baker, Pluralitas!

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Mar 24, 2008, 11:44:22 PM3/24/08

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<mi...@sushi.com> wrote in message
news:83f52918-9baf-4818...@a1g2000hsb.googlegroups.com...

> http://www.lazygranch.com/sound/shortwave/2750khz.ogg
> SF Bay area approx 9GMT 3/22/2008
> 2750Khz AM 9.5kHz filter

I've listened for it several times and never heard it.
(I'm in San Diego.)

I haven't been able to listen to the .ogg file. I
installed winamp but it isn't working and I haven't
taken the time to figure out why.

I'm always interested in new types of signal so
keep on postin'. I'll continue to check out
2750 too.

mi...@sushi.com

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Mar 25, 2008, 12:06:13 AM3/25/08

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On Mar 24, 8:44 pm, "Ron Baker, Pluralitas!" <t...@aint.me> wrote:
> <m...@sushi.com> wrote in message

Gee, that is odd regarding winamp. Try the VLC player.
http://www.videolan.org/
Also irfranview
http://www.irfanview.com/
I always think of irfanview as a photoviewer, but it does audio too.

msg

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Mar 26, 2008, 10:03:00 PM3/26/08

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mi...@sushi.com wrote:

What do you hear now? At about 0200Z 03-27-2008 I am hearing a
steady slow male reader in a language that sounds a bit like
Spanish (but I can't make it out for the noise level). Mode
is USB, QTH No. MN.

Michael

CW

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Mar 26, 2008, 11:06:55 PM3/26/08

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Sounds like HAARP.

<mi...@sushi.com> wrote in message
news:daeb3461-a8d2-4c87...@s37g2000prg.googlegroups.com...

RHF

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Mar 27, 2008, 1:56:44 AM3/27/08

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On Mar 26, 7:03 pm, msg <msg@_cybertheque.org_> wrote:

> m...@sushi.com wrote:
> > On Mar 22, 2:55 pm, m...@sushi.com wrote:
>
> >>http://www.lazygranch.com/sound/shortwave/2750khz.ogg
> >>SF Bay area approx 9GMT 3/22/2008
> >>2750Khz AM 9.5kHz filter
>
> > A few days ago they were doing what I call "ding dong whoop." Then 2
> > second beep, 4 seconds off. I didn't record those events.

- What do you hear now? At about 0200Z 03-27-2008
- I am hearing a steady slow male reader in a language
- that sounds a bit like Spanish (but I can't make it out
- for the noise level). Mode is USB, QTH No. MN.
-
- Michael
-

MSG - That was sort of my general impression. ~ RHF
http://groups.google.com/group/rec.radio.shortwave/msg/2b70fb7bbf3b9923
.