hfmodemDocumentation

VarAC high-speed reception — 2026-10-24

Passive BW500 reception on 20 m, slot 1. The 125-second recording contains CRC-valid L6, L7, L6 and L5 frames carrying TEXT-compressed forwarded VMail fragments. RF endpoints are unknown. This is partial reception, not evidence of complete-message delivery or local transmission.

The audio ships once, with the site example. Its SHA-256 is 17c559926de09821ac0d335423a8783332c795331dadcf1200f7301e480b5c9a.