Photos: https://imgur.com/a/aFhWrYM
The first photo is the one right above my workspace.
The next 2 photos are the units that were installed on the in side of our rooftop patio.
The last photo is of the main unit that powers all of them.

The main cabinet unit (last photo) is about 50' on the opposite side of the cell towers (we're in between). The cabinet rings high-pitched enough that we can't open our living room window without hearing it, and our neighbors have noticed it too. We've been told that it's the fans.

The units on the patio also have a noise to them, understandably, but it's not as high-pitched. We've been told all of this stuff is safe as long as we didn't go on the other side of it (we can't). There were many workers up there for months, and upon inquiring when they began, I was told by one technician: "I wouldn't live here with my wife and kids, but that's off the record". Freaked us out. All the other workers have told us many times that it's safe.

However, the high-pitched ringing is annoying and, despite being under them, still seems a little too close for comfort. Both myself and my roommate have developed tinnitus in the last year. It's likely entirely unrelated, and we're both under a lot of stress at work (a main cause of tinnitus), but it made us wonder. Especially after one of the techs insinuated a potential danger.

Are we totally safe? Is it bad being in between that main cabinet and multiple towers connected to it? Are there any hazards to living this close to these at all?

Again, I'm not crazy (I swear!), just genuinely curious! Thank you!!