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WSPR - Signal Identification Wiki
https://www.sigidwiki.com/wiki/WSPR#:~:text=WSPR%20%28short%20for%20Weak%20Signal%20Propagation%20Reporter%29%20is,times%20and%20provides%20callsign%2C%20location%2C%20and%20power%20information.
WSPR Audio Signal Source | WSPRnet
http://www.wsprnet.org/drupal/node/1415
WSPR Audio Signal Source | WSPRnet WSPR Audio Signal Source I have documented my most recent project that allows a portable SSB QRP transceiver to transmit WSPR beacons from a portable location without a computer. The project consists of a simple audio oscillator controlled by a Microchip 16F628 PIC that has the following capabilities:
Software Update for the WSPR Audio Signal Source | WSPRnet
http://www.wsprnet.org/drupal/node/1520
Software Update for the WSPR Audio Signal Source. The PIC software for the Audio WSPR Source was updated to include on-chip WSPR message generation. On-the-fly grid square location updating for portable operation is also included if GPS timing is used. The system now has the following capabilities:
W3PM's blog - WSPRnet
https://www.wsprnet.org/drupal/blog/349
Solar powered WSPR fun with 0.000085 watt (85 uW) W4ATV is an experimental solar powered sub-mW WSPR beacon located in Madison, Alabama (EM64). It is capable of outputting either 1000, 500, 250, or 85 uW on 30m. Power output was verified using a calibrated HP-432A power meter and GIL-360-2 bolometer mount.
WSPR (Weak Signal Propagation Reporter) Stand Alone …
https://www.instructables.com/WSPR-Weak-Signal-Propagation-Reporter-Stand-Alone-/
A WSPR (pronounced 'whisper') beacon is a low power radio transmitter operating on amateur bands from 2m to 160m or approximately 144MHz to 1.8MHz respectively. The implementation presented here can support 5 bands of which I concentrate on 2 bands - 20m and 40m. My particular antenna is best suited to 20m and 40m.
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