NIL HEARDRECEPTION LOG

4XZ Israeli Navy Haifa, night CW marker 6607 kHz

tier B · carrier

6606.2 kHz USB · 2026-10-05 22:09:51Z · 10:00 · received at Kuwait City, Kuwait

Spectrogram of 4XZ Israeli Navy Haifa, night CW marker 6607 kHz, 6606.2 kHz USB, 2026-10-05 22:09:51Z, 10:00: carrier 53% · morse 33% · keyed-tone 7% · mixed 7% · tone 803 Hz · keying 8.96 Hz depth 0.92
spectrogram 0–6.0 kHz · analysis blocks: keyed-tone morse carrier mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.6 MB ⤓ Opus 2497 kB { }
What was heard
carrier 53% · morse 33% · keyed-tone 7% · mixed 7% · tone 803 Hz · keying 8.96 Hz depth 0.92 — dominant tone 803 Hz, keyed at 8.96 Hz (depth 0.92). 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 28 dB — thanks to the operator. Receivers
Provenance
sha256 f326104e5bbd07dcf370c8e12b4293fef41ca15af84103138f45d7f473078f7d
source 10:00 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-05T2209Z-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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