Our tower in Cleveland, that I'm close to in the picture, had beacons and side marker lights. The one in Pittsburgh had strobes. The towers are grounded with transmission line or waveguide going up to the base of the actual antennas. Our licensed power was 110KW visual, 11KW aural, with an ERP (Effective Radiated Power) of 2MW. The beam's cardioid pattern had a 6 degree downward tilt and was directed roughly NE to favor the city. I would NOT be up against that antenna while we were broadcasting. I could see coordinating with the climbers to go off the air when they were staged up near the top of the waveguide. I think our bulb replacements were done after signoff.
We had lots of folks renting our tower by the foot. MMDS wireless cable, a 10KW FM, cellular. Studio Transmitter Links and remote microwave link receivers are often mounted part way up towers too. Tower maintenance would involve determining what services might be impacted AND any dangers to the climber(s).
Joe
