Posted by JMOR on February 26, 2010 at 07:40:04 from (72.181.166.239):
In Reply to: OT: TV RANT posted by James Howell on February 24, 2010 at 20:19:55:
I don't care how many dB s gain your antenna & amp have or how high (assuming you don't want to spend million dollars for a quarter mile height), if you are 70 miles away and in a river valley with hills/mountains between you and the transmitter, you just are not going to get jack. Lower power, most moved to 'line-of-sight frequencies, so you just can not receive under some conditions regardless of equipment. Sure, one of my places is 25 miles from transmitters that are at 2,000 foot elevation and I'm at 625 feet...perfect pictures & about 3X more channels than in analog days, BUT, the other place I mention.....despite above & beyond eqmt & efforts, the result is virtually nothing. Yes, massive antenna (called HDTV ant), triangular base tower about 3X height of house ($ limit), rotor, antenna amplifier (tried two different units). The biggie in my case is the line-of-sight. If down in a hole at high UHF frequencies, you can't get blood out of a turnip. Back with the low frequency analog, many people did television DX reception as a hobby and I could sometimes pick up lower band channel well beyond the range related to earths curvature. One example I remember was Birmingham Alabama to Gulfport...250 miles. Another was Wichita Kansas to Dallas....400 miles. Ain't gonna happen now!
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