Random tidbits Bdale thinks are worth documenting.
Bdale Garbee
bdale@gag.com
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Fri, 19 Aug 2005
It's About Time..
In the fall of 1998, work on our house caused me to take down my roof-mounted
GPS antenna. I finally got around to re-installing it today. It's hooked to
an HP 58503A GPS Time and Frequency Reference Receiver. This mean my NTP
stratum 1 will be back online soon. More importantly, it means I now
have an excellent 10 Mhz reference source to lock my test equipment and
software defined radio experiments to...
Broadcast Flag
Those who enjoyed my presentations at
Linux Conf Australia 2005
on software defined radio are invited to join me in a loud cheer in
support of the latest
court action
involving the now-infamous HDTV "broadcast flag"!
USRP Ordered
Came home from visiting family over Christmas to find that Matt Ettus has the
USRP
boards
available for sale.
Placed my order...
SSRP is Working!
After some iteration, I now have a full build of
GNU Radio
from CVS running on Debian with 2.6.8.1 kernel on my
HP tc1100 tablet,
including the
SSRP
firmware, utilities, and examples. And it all seems to work! Here's a
window dump of my
first FFT
with a signal generator feeding an unmodulated 1 Mhz carrier into
the board. And here's
a picture
of the test setup after I dialed the generator up to 2 Mhz.
SSRP Assembled
I sat up tonight putting together a semi-kit of David Carr's
Simple Software Radio Peripheral,
which is more or less an "RF to USB 2.0" interface. I'm going to use this
as a platform for learning more about
GNU Radio.
I'm looking forward to getting a USRP board soon, which I intend to use in the EME station I'm building. In the meantime, the SSRP board looked like an easy way to get started, particularly since it uses essentially the same parts of GNU Radio as the USRP...