I live in a valley that has 70ft tall trees all around. I would like to put a Tram 1410 Discone Antenna up. My property goes from the road at ground level about 100 ft down to my house. I could mount the antenna on a pole up near the road but the coax run might be up to 150 ft with the loss in the coax and still not be above large trees. I could mount the antenna on a pole near the house but that would have a shorter coax run but it would 25 ft below the road level. I was wondering if I could put a rope up in a large tree and hang the discone by the rope above ground level but closer to my house to shorten the coax run. I want to use the antenna for SDR scanning for Aircraft,Police and 2mtr/440 transmitting. So what is the right balance of coax loss ant vs height above ground ?