Uploaded July 2011 | Updated September 2026, 1 day ago

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Hacked Racewood 900MHz video transmitter.
The SMD PIC and channel switch is replaced to make a remotely controlled frequency FM phase locked loop transmitter.
Precise control of the frequency, between 850MHz and 1050MHz for this transmitter but it works with any other !
TSA5520 I2C PLL is programmed with the Arduino Mini Pro (Atmel ATmega328 / C++ / open hardware and open source tools).
PLL of ground station receivers must be synchronised (same proceeding) !