A blog about Amateur Radio, Medium Wave DX-ing, Electronics and Technology in general by Eric, SA5BKE.
Showing posts with label junk box. Show all posts
Showing posts with label junk box. Show all posts
Friday, April 30, 2010
WSPR receive and flea market
Using the same equipment and QTH as last time I now finally tried the WSPR system that I´ve heard a lot about lately. I only run with receive but I hope to be able to transmit sometime soon. Basically WSPR is a narrow digital mode to be used as a beacon. When you receive and decode a WSPR station, which is done automatically in the software, it uploads the spot to a central database and can be tracked by other users.
Here are a few links to get more information about WSPR:
http://wsprnet.org/drupal/
http://www.physics.princeton.edu/pulsar/K1JT/wspr.html%20
Here are the 2 most noteworthy catches in terms of power and distance:
G4PEC 30m 0.001W 1060km
RA9CUA 17m 2W 2710km
The complete log can be found here:
WSPR log SA5BKE 20100417
This weekend I also went to some flea markets to look for interesting equipment. I came home with these things:
2 Valve radios that of course included variable capacitors, an old box with big variable resistors, some kind of alarm controller (atleast a box for other project) and an equalizer. Also got some telescopic antennas and cables (twin lead and speaker cable). I didn´t pay much, so I think it was a bargain!
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