RWM Moscow time signal

tier A · keyed-tone

4995 kHz USB · 2026-09-18 21:08:18Z · 04:00 · received at Brettnach F57320

Spectrogram of RWM Moscow time signal, 4995 kHz USB, 2026-09-18 21:08:18Z, 04:00: keyed-tone 75% · mixed 17% · morse 8% · tone 1052 Hz · keying 1.00 Hz depth 0.99 — spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse mixed

loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 4.0 MB ⤓ Opus 1054 kB { }

What was heard

keyed-tone 75% · mixed 17% · morse 8% · tone 1052 Hz · keying 1.00 Hz depth 0.99 — dominant tone 1052 Hz, keyed at 1.0 Hz (depth 0.99). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.

Receiver

KiwiSDR, Brettnach F57320 (JN39GG) · vertical · reported SNR 39 dB — thanks to the operator. Receivers

Provenance

sha256 39c9095ce4eeee45a646520178281a9d3f787b2b62f957850bccdb17662526a4
source 04:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-09-18T2108Z-4995-rwm-4996

Heard in the record

— linked once the record exists.

Notes

rig: RWM 4996 kHz, dial 4995.0 USB so carrier pips read as 1000 Hz tone. Cycle per half hour: :00-:08 carrier, :08 off, :09 morse ID RWM, :10-:20 1 Hz pulses, :20-:30 10 Hz pulses; started 21:07 to span off/ID/1 Hz pips. https://www.sigidwiki.com/wiki/RWM https://en.wikipedia.org/wiki/RWM

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.

Related