NIL HEARDRECEPTION LOG

RWM Moscow time signal

tier A · carrier

4995 kHz USB · 2026-09-20 17:37:12Z · 02:29 · received at Heppen, Limburg, Belgium

Spectrogram of RWM Moscow time signal, 4995 kHz USB, 2026-09-20 17:37:12Z, 02:29: carrier 62% · mixed 25% · keyed-tone 12% · tone 999 Hz · keying 0.50 Hz depth 0.54
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 2.3 MB ⤓ Opus 635 kB { }
What was heard
carrier 62% · mixed 25% · keyed-tone 12% · tone 999 Hz · keying 0.50 Hz depth 0.54 — dominant tone 999 Hz, keyed at 0.5 Hz (depth 0.54). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Heppen, Limburg, Belgium (JO21oc) · Longwire 54m top 70m above sealevel · reported SNR 38 dB — thanks to the operator. Receivers
Provenance
sha256 af77edfb09846c0b15c002e84d105c0d58f63cace1cb9cadaabb514637920bde
source 02:29 WAV, 12000 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-20T1737Z-4995-rwm-4996
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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