sdrangel

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Robin Getz b834b80f05 adsb: fix BDS 2,1 registration character decoding

Fix an incorrect bit shift when decoding aircraft registration
markings from BDS 2,1 Comm-B messages.

Coverity (CID 649088) reported that the expression
'(data[7] & 0x1) >> 3' always evaluates to zero, causing one bit of
the 6-bit character value to be discarded.

The BDS 2,1 aircraft registration marking format encodes seven
6-bit characters. Based on the bit layout defined in ICAO Doc 9871
(Technical Provisions for Mode S Specific Services) and verified
against independent implementations such as pyModeS/rs1090, the
remaining bit from data[7] is the most significant bit of the
character and must be shifted left, not right.

Update the extraction to preserve this bit when combining it with
the remaining bits from data[8].

Signed-off-by: Robin Getz <rgetz503@gmail.com>

2026-07-12 19:35:04 -04:00

channelmimo

Release 7.25.0

2026-05-04 06:00:17 +02:00

channelrx

adsb: fix BDS 2,1 registration character decoding

2026-07-12 19:35:04 -04:00

channeltx

Get Qt6 build working on Android.

2026-07-09 23:16:19 +01:00

feature

Use default QSurfaceFormat when MSAA enabled. May fix #2788 , #2022 and #1616