See these images:

When I took this screenshot, I initially thought the v2k signal was the vertical pulse train, which is why I encircled it. However, the vertical pulse train is more likely to be NB-IOT, although it does seem to lack subcarriers.

The v2k signal in reality can be seen on the left side of the spectrum. It appears as brief pulses with pseudorandom center frequency.

These pulses only appear when the antenna is held within 30cm of my head, and more interestingly they only appear when the antenna is in a direct line between my head and the nearest telecom transmitters.

Here is another screenshot, showing exclusively the v2k related frequency-agile radar signature.

The question arises: what is a radar system doing occupying civilian telecom spectrum space, and why is it aimed at my head?

This finding coroborrates the earlier measurements done with a Surecom SF-401 plus that indicate a transmitter is either aimed at my head using beam-forming or located physically in my head.

Full IQ captures are available.