NIL HEARDRECEPTION LOG

CFH Halifax (Canadian Forces) fax/RTTY

tier A · mixed

6494.5 kHz USB · 2026-09-21 20:08:36Z · 10:00 · received at villers aux bois france

Spectrogram of CFH Halifax (Canadian Forces) fax/RTTY, 6494.5 kHz USB, 2026-09-21 20:08:36Z, 10:00: mixed 93% · morse 7% · tone 372 Hz · keying 5.03 Hz depth 0.77
spectrogram 0–6.0 kHz · analysis blocks: morse mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.5 MB ⤓ Opus 2516 kB { }
What was heard
mixed 93% · morse 7% · tone 372 Hz · keying 5.03 Hz depth 0.77 — dominant tone 372 Hz, keyed at 5.03 Hz (depth 0.77). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, villers aux bois france (JN18xw) · LW 20 LONG FIL MULTIBANDE 0 à 30 mhz · reported SNR 30 dB — thanks to the operator. Receivers
Provenance
sha256 181385eab2587c8eb993bdf3b6335dbf21dcdaa66fc77f99a51a3c55f419026d
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-21T2008Z-6494.5-rtty-cfh-6496
Heard in the record
— linked once the record exists.
Licence
CC BY 4.0 — credit NIL HEARD / Reception Log. The recording is ours; the transmission is somebody else's. Descriptions describe sound, never content — why.
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