VARA is a High Performance HF modem based on OFDM modulation. VARA Modem, brings state of the art Military grade technology to new and existing HF data. VaraAC (Vara Chat) uses VARA for keyboard-to-keyboard chatting, with full forward error correction. VarAC leverages the weak signal capabilities of the VARA software modem so chatting is possible even in poor conditions. In this video, your Ham Radio Sensei, Julian Frost (N3JF) teaches you how to setup and use VARA and VarAC.
You'll need two pieces of software:
VARA, which can be downloaded here: rosmodem.wordpress.com
VarAC, which can be downloaded here: www.varac-hamradio.com/download
Note: Both programs are free, but the free version of VARA HF limits the speed of transfer and requests you upgrade. The paid version unleashes the full speed of VARA on HF frequencies and doesn't nag you! Support the software author!
31 мар 2022