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WORK IN PROGRESS

Weak signal beacon project

The project consists in the creation of a low power WSPR beacon. The goal is to study propagation, based on short and long term statistics.

WSPR implements a protocol designed for probing potential propagation paths with low-power transmissions. Normal transmissions carry a station's callsign, Maidenhead grid locator, and transmitter power in dBm. The program can decode signals with S / N as low as -28 dB in a 2500 Hz bandwidth. Stations with internet access can automatically upload their reception reports to a central database called WSPRnet, which includes a mapping facility.

wsprtx.jpg

Low power WSPR and FT8 beacon

Ionosphere index.jpg

FT8 experiments are done with this layout: Flex1500 transceiver with adjustable output power from 0.05 to 5 watts

WSJTX for FT8.png
MAP65_2.2 (1).png

Work in progress
for WSPR low power beacon

The new WSPR beacon on Arduino platform is under construction.   

(Designed and engineered by IU3AGC)

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