For those who are to lazy to check the link, it's an Electronic Support Measures (ESM) mast and station. Essentially a highly specialized series of antennas, receivers, and processors designed to listen for Radio Frequency transmission on the battle field. Generally used in multiples to triangulate and track.
Cell phones have been a problem for modern armed forces for a while now, famously a secret base was made less than secret thanks to some folks using Strava and posting their routes.
So, likely yes. Especially given their lack of discipline / enforcement of OpSec.