Forum: GNU Radio free USRP (has a new home)

Hi,

Congratulations Jerry KD6JDJ as we discussed you will be receiving my 
USRP for your
NOAA satellite project!  To all those 30+ people who wrote me an email, 
thanks for sharing
your project proposals, it was very nice to be able to read them all, I 
wish you all can have
a free USRP! ;)

cheers,
Jamie

Great choice! I have used the USRP to receive NOAA APT signals before
(with one of Jerry's antenna designs it seems, incidentally). Very
curious what he is going to do with it :)

Best,
Markus


On 08.02.2010, 22:21 Jamie Morken <truespace1@hotmail.com> wrote:

> Hi,

> Congratulations Jerry KD6JDJ as we discussed you will be receiving my USRP for your
> NOAA satellite project!  To all those 30+ people who wrote me an email, thanks for sharing
> your project proposals, it was very nice to be able to read them all, I wish you all can have
> a free USRP! ;)

On Tue, 2010-02-09 at 03:01 +0100, Markus Kern wrote:

> Great choice! I have used the USRP to receive NOAA APT signals before
> (with one of Jerry's antenna designs it seems, incidentally). Very
> curious what he is going to do with it :)

BTW, the (newish) gr-noaa component in GNU Radio can receive and
demodulate the AVHRR/HRPT 1.1 km/pixel telemetry from NOAA POES
spacecraft.  There is a crude Matlab/Octave rasterizer script to turn
the telemetry into B&W PNG files for each imaging channel, or the output
can be read directly into a commercial HRPT rendering program like
HRPTreader for more sophisticated false color image generation.

Johnathan

On 09.02.2010, 05:26 Johnathan Corgan <jcorgan@corganenterprises.com> 
wrote:

> On Tue, 2010-02-09 at 03:01 +0100, Markus Kern wrote:

>> Great choice! I have used the USRP to receive NOAA APT signals before
>> (with one of Jerry's antenna designs it seems, incidentally). Very
>> curious what he is going to do with it :)

> BTW, the (newish) gr-noaa component in GNU Radio can receive and
> demodulate the AVHRR/HRPT 1.1 km/pixel telemetry from NOAA POES
> spacecraft.  There is a crude Matlab/Octave rasterizer script to turn
> the telemetry into B&W PNG files for each imaging channel, or the output
> can be read directly into a commercial HRPT rendering program like
> HRPTreader for more sophisticated false color image generation.

That looks impressive! Is there any documentation on the RF front end
you used? Can the DBSRX be used directly with a suitable antenna?

Markus

FYI,

There is also a cross-platform POES/GOES LRIT/HRIT spacecraft decoder
work-in-progress
Screen shot 
http://www.poes-weather.com/~patrik/1.7GHz/POES-USRP-Decoder.jpg

At the moment it does the following:
- render NOAA POES HRPT imagery
- render decompressed GOES LRIT/HRIT full disk imagery
- realtime satelellite tracking and prediction
- LPT rotor control support
- antenna AZ/EL HID device sensor support

I have not yet bothered to make a HOWTO web-page but soon when it gets
warmer up here North....
It is built using Qt Creator

If you are interested, checkout the latest revision from and do a build
svn checkout
http://noaaport.poes-weather.com:8081/subversion/hrpt-decoder/branches/1.0.0.2/

View the work in progress at
http://noaaport.poes-weather.com:8081/viewvc/branches/1.0.0.2/?root=hrpt-decoder

Warning, it is a VERY work in progress SW,
Patrik


----- Original Message -----
From: "Johnathan Corgan" <jcorgan@corganenterprises.com>
To: "Markus Kern" <mkern@fastmail.fm>
Cc: <discuss-gnuradio@gnu.org>
Sent: Tuesday, February 09, 2010 6:26
Subject: Re: [Discuss-gnuradio] free USRP (has a new home)