WSPR (pronounced « whisper ») stands for « Weak Signal Propagation Reporter ». It is a protocol, used for weak-signal radio communication. The protocol was designed, and a program written by Joe Taylor, K1JT. This project is a stand alone WSPR beacon complete and a radio transmitter including low pass filters. The beacon, once configured, will run stand alone transmitting a WSPR sequence each even minute.
WSPR beacon features:
Arduino nano (atmega328P) based microcontroller :
- Support Arduino IDE 1.0+ (OSX/Win/Linux)
- Power via USB or External Source + 5v
- Built-in USB
- 2 I/O Pins (for GPS receiver)
- Removable filter
- AD9850 DDS
- RTC DS3231
- BS170 power amplifier 0.1W
- Fit in Aluminium Instrument Box Enclosure Case 100x66x43
- Status LED.
- PCB available (f4goh at orange.fr)
- diaporamas en français ici
- wspr ebay links
Projets radio 