Originally Posted by
Auxtank
From the BBC Vid of DH (2015) it looks like a BK KT97 (immediately below the Strike Finder) which is Mode C
Nothing to say it didn't get an upgrade between then and now.
ELT circled in red from earlier post.
N264DB is in the Airframes dot org database with a Mode S Hex code: A28E26 (ICAO24). This strongly suggests that it was Mode S equipped.
None of the tracking sites have Mode S data though, while most have good coverage in the area. Mode S not switched on / unserviceable?