So much info here that's not really accurate, some good also, but let me clarify a bit.
In general, you can't get too much on your body. If you can, you're doing something you shouldn't, like climbing on the tower, hugging the actual antenna element, or something similar. Especially if you're below the antenna level (more than say 20feet/6 meter), quite often the beam is directed above you, and the signal level is much less compared to same distance from the antenna but at same height than the antenna. That's not always the case, but usually. The antenna beam is formed that way to get maximum distance for the signal, no point beaming it to the ground close to the tower. Makes sense, right.
So #1, you're likely safe. 99% of the time you get more cell signal radiation from the one you hold on your ear, and that's why they have the SAR-test on the phones, with certain maximum limit they have to pass or FCC don't allow them to be sold. New phones are much much better on SAR than late-90 phones. So you're safe with your cell phone too. Unless you use the old POS from 90s, and they didn't kill anyone either.
As for equipment, it's still highly unlikely, but it is possible to get interference or even malfunction. Most electronics are tested towards certain type of radiation, both different frequency and power. On top of my head I can't recall the typical levels they test, but I think they are not that strong. So depending on the equipment, how well it was shielded and such, it might cause something if you are too close to the beam. Again, being below the tower helps compared to being same level with the antennas. Again, in most cases, not always.
I'm trying to think if it could cause permanent damage, but it should try to corrupt the FW in one way or another, and that's one step more difficult. So I'd say you're safe on both accounts, you and your gear, but if you see something odd behavior, turn off the camera and find position with less beam. Most likely you don't get anything.
