Weather fax on 15986 khz
 

JeroenK wrote:
Steve schreef:

It is puzzling though. Like you, I can't find anything about the use
of this frequency for weather faxes.


Looking at the spectogram I am receiving something *far* in the noise
right now. But its way to weak to be able to get anything in an image.

--
JeroenK

I asked the gents over in the yahoo utilities forum if they had any
ideas, and one person said it was DDK7 Hamburg Meteo, Germany on 15988
khz. This makes sense, given the nature of the fax and given that I
was tuned a couple of khz below on USB, but then I'd certainly expect
you to receive it in the Netherlands. I think I'll keep digging....

Weather fax on 15986 khz
 

Steve schreef:

I asked the gents over in the yahoo utilities forum if they had any
ideas, and one person said it was DDK7 Hamburg Meteo, Germany on 15988
khz.

That was my initial thought. I received from them quite a few times, so...

This makes sense, given the nature of the fax and given that I
was tuned a couple of khz below on USB, but then I'd certainly expect
you to receive it in the Netherlands. I think I'll keep digging....


I'm puzzled too. Unless this is meant to be broadcast over longer
distances and I am located in the first hop? Not sure whether so close
this would be possible however. I have yet much to learn when it comes
to this type of propagation. f anyone on the group could fill me in on
this, that would be great!


--
JeroenK

Weather fax on 15986 khz
 

HankG wrote:
This is the first I'm hearing of this. Flipped on the radio & MultiPSK.
Coming in quite clear at 14:20 UTC in South Jersey.



I'm hearing it too this morning:

http://img2.freeimagehosting.net/ima...de91c6b796.jpg

I wonder what their broadcast power is.

Steve

Weather fax on 15986 khz
 

This is the first I'm hearing of this. Flipped on the radio & MultiPSK.
Coming in quite clear at 14:20 UTC in South Jersey.

HankG
"Steve" wrote in message
ups.com...

JeroenK wrote:
Steve schreef:
Several times now I've received German weather faxes on 15986 khz.
Anyone happen to know where the station is located?

Have any UTC's ready when you received them? I have no sign of that
frequency in any schedule I have here. Might try and catch a fax as
well, maybe I can get anything that verifies the station.

--
JeroenK

This morning I caught the tail end of a fax at a little after 13:00
utc. I didn't save it, but here's a part of one that I received a
while back:

http://www.supload.us/free/gwf.BMP/view/

I should have saved the one I received this morning because the copy
was cleaner. Anyway,
I've received these faxes at various different times of day, so it
might be worth checking the frequency from time to time.

Steve

Weather fax on 15986 khz
 

While I was monitoring, there was no readily visible vertical bars to center
the image. There was a vertical line with occasional text imbedded in it.
Used that, but each time they started a new image, the picture shifted.

HankG


"Steve" wrote in message
oups.com...

HankG wrote:
This is the first I'm hearing of this. Flipped on the radio & MultiPSK.
Coming in quite clear at 14:20 UTC in South Jersey.



I'm hearing it too this morning:

http://img2.freeimagehosting.net/ima...de91c6b796.jpg

I wonder what their broadcast power is.

Steve

Weather fax on 15986 khz
 

On Mar 23, 10:59 am, "HankG" wrote:
While I was monitoring, there was no readily visible vertical bars to center
the image. There was a vertical line with occasional text imbedded in it.
Used that, but each time they started a new image, the picture shifted.

HankG

This same thing happens to me from time to time. What software are you
using?

Steve

Weather fax on 15986 khz
 

In article . com,
Steve wrote:
On Mar 23, 10:59 am, "HankG" wrote:
While I was monitoring, there was no readily visible vertical bars to center
the image. There was a vertical line with occasional text imbedded in it.
Used that, but each time they started a new image, the picture shifted.

HankG

This same thing happens to me from time to time. What software are you
using?

If you tune in on the opposite mode (USB vs LSB) the signal would be
inverted so that any black sync bar would be whiter than white (or vice
versa) and may not get recognized by the software.

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)

Weather fax on 15986 khz
 

Michael schreef:
Weather fax is fun to play with, but getting the actual satellite
transmissions is much more fun.

There are no satelites though on shortwave, are there?

Or maybe some retransmissions of wetaher imagery for shipping maybe?

If you have some freqs, I would love to play with it.


--
JeroenK

Weather fax on 15986 khz
 

"JeroenK" wrote in message
...
Michael schreef:
Weather fax is fun to play with, but getting the actual satellite
transmissions is much more fun.

There are no satelites though on shortwave, are there?

Or maybe some retransmissions of wetaher imagery for shipping maybe?

If you have some freqs, I would love to play with it.


--
JeroenK

Hiya...

The NOAA satellites have their APT downlink on high frequency. NOAA 12 is
on 137.5, NOAA 15 is on 137.5, NOAA 17 is on 137.62 and NOAA 18 is
currently on 137.9125. It is in FM and you will need a receiver that has a
filter width of about 50kHz. The ICOM PCR-1000 is perfect for the task. It
has a 50khz filter setting in FM. You'll also need some kind of an antenna
that is good for high frequency. Although a quick dirty and cheap homebrew
quadrifilar helix antenna would be ideal, like the one in this link,
http://va6bc.no-ip.com/jerry_pix/Qua...ix_antenna.htm
you don't need to have one. A simple discone or any antenna tuned for high
frequency will work. I have a 200ft homebrew roof wire that I built to use
as a scanner antenna. It also happens to work great for receiving the NOAA
satellite images.

If you don't want to rig up a satellite ground station and you would still
like to get your own satellite image, you can always decode the satellite
image that is sent via shortwave wefax stations. You wont receive it
directly from the satellite in real time, you'll just get the image as
retransmitted by the NOAA station.

For instance... If you are located in the northeastern part of the US, you
can receive the NOAA wefax of the recent NOAA satellite pass from Halifax Or
Boston. Take a peek at the link below. You will see a comprehensive
listing for all of the NOAA shortwave frequencies/locations and schedules.

http://www.nws.noaa.gov/om/marine/rfax.pdf

Once you have set up a program like WXSat and plugged your receiver into
your PC's sound card, set your sw radio on the proper frequency during the
time when the satellite image is scheduled to be transmitted and viola, your
own satellite image. If you use WXSat, make sure you've got the FM tuning
and the modulation set first. Also.... It is always better to record the
transmission first and then feed it into your program.

Hope that helps....
--
Respectfully,

Michael

Location: NJ
Primary Radio: ICOM IC-R75 (full Kiwa mods)
Antennas: G5RV & 200ft "Frankenstein" Roof Wire
Additional Radios: Icom IC-PCR1000,
Sony 7600GR, Grundig YB400,
Tecsun PL-550, Kaito KA1101, Kaito KA1102
GE SR-III, Westinghouse H-104 (seven tube)

Weather fax on 15986 khz
 

Michael schreef:
snip
Hope that helps....

Will start playing around with it :)

Thanks for the pointers. Am thinking of a PC based new receiver so will
look in your suggested solution as well.

Thanks again,

--
JeroenK