I think the WRAL tower in Raleigh is 1800. It has a 2m repeater that has a humongous footprint. I have hit it a few times from Winston.I used to climb antennas for a living, we considered anything over 50' is a death fall...going higher just gives you more time to think about it on the way down. That image looks like duder is over 1,000', probably good bit higher than that. I think the tallest antenna tower is 2,100 feet, somewhere in the midwest, South Dakota or Nebraska, can't remember.