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Hello, I have a TV antenna tower it's probably about 30 feet tall. Am I able to just mount the mag mount that I use for my car up on top of the mast? I have about a 40 foot cord on it. and If I create a metal plate for it to magnet mount to on top of the mast? Will that receive signals from further away? Being up 30 feet in the air? How far do you think I could monitor with a mag mount antenna 30 feet up?

Thanks,

Sorry all I am new to this external antenna stuff.