NIL HEARDRECEPTION LOG

NSS US Navy Annapolis, continuous FSK

tier A · mixed

12013.5 kHz USB · 2026-10-03 11:07:52Z · 09:28 · received at Pine Bush, NY 12566

Spectrogram of NSS US Navy Annapolis, continuous FSK, 12013.5 kHz USB, 2026-10-03 11:07:52Z, 09:28: mixed 100%
spectrogram 0–6.0 kHz · analysis blocks: mixed
loop [ ] · speed in the player bar · deep link #t=seconds ⤓ FLAC 10.1 MB ⤓ Opus 2411 kB { }
What was heard
mixed 100%. Machine description of the sound by the rig's classifier; it sorts, it does not certify a station.
Receiver
KiwiSDR, Pine Bush, NY 12566 (FN21up) · 250 ft Doublet, Elevation 100 ft · reported SNR 34 dB — thanks to the operator. Receivers
Provenance
sha256 f6bcf5e405c96a1a40885957e1eb2c3ddc4278b79dbe6d21ead97bbf7def2e6b
source 09:28 WAV, 11999 Hz mono
kiwirecorder.py (jks-prv/kiwiclient v1.11) · rig item 2026-10-03T1107Z-12013.5-fsk-nss-12015
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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