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Showing posts with label unid data protocol. Show all posts
Showing posts with label unid data protocol. Show all posts
24 February 2026

A 142-byte Data Link Protocol with fragmentation support

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The signal captures used for this post were recorded a few days ago on 6369.0 kHz (USB) and kindly provided by my friend Kosmod ; below is m...
3 comments:
4 December 2024

256-bit IVs & 0xD1E221E1 sequence

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Just a quick note to observe that bitstreams using (alleged) 256-bit Initialization Vectors (IV) encryption have the same 32-bit/4-byte sequ...
26 August 2024

about the unid 32-bit protocol used in S-4538 + MS-110A transfers

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This is the third time I have encountered these transmissions [1] and, given the good number of recordings made over a few days on the frequ...
30 May 2024

a STANAG-4285 autobaud waveform?

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Interesting STANAG-4285 transmission heard on 14000 KHz/USB and sent me by my friend GrandBleu from radiofrecuencias.es (Figure 1) Fig. 1 ...
15 April 2024

unid datalink protocol(s) over a PSK8 ST and STANAG-4539 (2)

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I had the opportunity to record other transmissions on 3712.70 KHz/USB and - also following the comment of my friend KarapuZ - I can state w...
9 April 2024

unid datalink protocol(s) over a PSK8 ST and STANAG-4539 (Thales? L3Harris?)

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A few days ago I came across some transmissions that caught my attention for at least three good reasons: 1. the frequency used, i.e. 7312.7...
2 comments:
26 February 2024

(unid) synchronous transfer protocol over MS-110A & FED-1052 DLP

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Durings the last few days I have monitored the frequency 7762.0 KHz/U and collected very interesting recordings of transmissions regarding a...