hfmodemDocumentation

VARA mail through KB8AY — 2026-09-18

W9SSJ sent message NL03TXWQ8SGL through KB8AY using hfmodem's VARA modem. The gateway accepted the proposal with FS Y and returned FF after the body. The operator reported receipt at the destination; the audio does not establish inbox delivery.

FieldValue
RecordingDownload WAV
Format48 kHz mono; 8,231,424 samples; 171.488 s
Start2026-09-18 15:48:46 UTC
Channel7100.0 kHz USB dial; 7101.5 kHz centre; BW2300
SourceRig speaker audio with transmit monitor enabled
Message633 bytes rendered; 441 bytes compressed

Local transmit-monitor audio and received signals share one recording clock. A local monitor signal alone does not prove reception at the peer.

Provenance records the recording hash and source. Verify the shipped audio from this directory:

shasum -a 256 audio/20260918T154839Z-W9SSJ-tap.wav

Expected SHA-256: c35119771eff9a5a5d2041750063a55dc00dbec7108ea754f130a38bf4645bcd.