NIL HEARDRECEPTION LOG

4XZ Israeli Navy Haifa, night CW marker 6607 kHz

tier B · morse

6606.2 kHz USB · 2026-10-02 22:17:53Z · 10:00 · received at Kuwait City, Kuwait

Spectrogram of 4XZ Israeli Navy Haifa, night CW marker 6607 kHz, 6606.2 kHz USB, 2026-10-02 22:17:53Z, 10:00: morse 100% · tone 800 Hz · keying 8.96 Hz depth 0.98
spectrogram 0–6.0 kHz · analysis blocks: morse
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 9.3 MB ⤓ Opus 2884 kB { }
What was heard
morse 100% · tone 800 Hz · keying 8.96 Hz depth 0.98 — dominant tone 800 Hz, keyed at 8.96 Hz (depth 0.98). Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Kuwait City, Kuwait (LL39) · HyEndFed · reported SNR 27 dB — thanks to the operator. Receivers
Provenance
sha256 de8fc557499d8a008f0225671f28e66b68e26391101690805ed0af2d2194dc08
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-02T2217Z-6606.2-4xz-6607
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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