1. DirecTV is around 99, 101, and 103 degrees (I think they center-aim it at 101 tho). HughesNet Echostar 19 is at around 97 degrees, so it's close. 2. As far as heaters go... I don't know about you, but anything electrically heated and not in the confines of a controlled environment scare me. First, the heat might warp the dish. Second, is the possibility of an animal eating the cord and causing a fire... I just wouldn't. If your sky is still clear to 97W somewhere near your DTV dish (in theory should be 4 degrees to the left of where it's pointing) I'd go with a pole mount.
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