[CQ] Weak Signal Propagation Reporting Node using only a Raspberry Pi & Low Pass Filter

[Greg Albrecht W2GMD]

http://wsprnet.org/drupal/node/3994

https://github.com/threeme3/WsprryPi

"""
Raspberry Pi bareback LF/MF/HF/VHF WSPR transmitter

 Makes a very simple WSPR beacon from your RasberryPi by connecting GPIO
 port to Antanna (and LPF), operates on LF, MF, HF and VHF bands from
 0 to 250 MHz.
"""


About WSPRNet:
"""
The Weak Signal Propagation Reporter Network is a group of amateur radio
operators using K1JT's MEPT_JT digital mode to probe radio frequency
propagation conditions using very low power (QRP/QRPp) transmissions. The
software is open source, and the data collected are available to the public
through this site.
"""

Here's a presentation from THIS WEEK! about WSPRNet:

http://www.k2r.org/kenji/papers/file-archive/rikitake-efsf2013-radioandriak-rev2.pdf?attredirects=0

-g

--
Greg Albrecht <gba at gregalbrecht.com> W2GMD
Software Developer-at-large. EMS & Disaster Worker.
Mobile: 1-310-621-9598
http://ampledata.org/
http://twitter.com/ampledata
https://github.com/ampledata
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