http://www.tvfool.com/?option=com_wr...0b86c3990ab330 i had a channel master ultra hi crossfire cm 3671 antenna installed on a 50 ft tower , with a pa 18 amplifier made by antenna direct, when first installed i got 24 channels next day down to 11 , hard to get buffalo channels after first day. I get all Canadian channels ok. the day the antenna was put up it was very warm temp. would that make a difference? Also some nights buffalo channels come in , but pickulating a bit. hope i spelled that word ok . i also have a rotor for antenna . do you think raising it a nother 10 ft would make it work better , or? thanks for any help