Thanks for the help guys. Those numbers you gave are pretty much the same thing I see on geometry edit (.2516).
9.88558 inches is what I see.
Hey watch it, I've gone metric 300ohm.
Is your GH10 installed in your attic or outdoors? If it is an outdoor install, do you have a preamp at the GH10 feed-point?
It's not really installed, I just wanted to do a quick test on my deck last night and I did use my channel master spartan3 0068 preamp. The preamp is located at the feed point.
( Attic locations can have a loss of around -10dB)
I've heard this over and over from people that I know are way smarter than me, but I just think it's a very muddy situation. For instance, I tried and tried to pick up channels 17 & 18 at several outdoor locations (couldn't get more than 10 ft up in the air). One night I put my gen1 sbgh antenna (which I'm VERY pleased with) back in my attic for different reasons. I pointed it right at Roanoke (ch 17, 18, & 30) and lo and behold I found the spot to get signal (except ch 17). Only thing is, reception is only from about 8pm to 10am. The channels drop out during the day. Ch 30 and 18 are pretty much equal regarding reception. I cannot pickup 17, possibly because of interference from another 17 with the same dbm rating (-103).
It's important to note that the attic is the highest place I've tried my sbgh. A steep 2 story house rooftop with no chimney is not my idea of a good safe outdoor installation. But I may get back on the roof again. I was just not that impressed when testing my old cm4221 on the rooftop. Reception seemed just as good in my attic with the 4221. My sbgh is not facing insulation or shingles in the attic, just going through osb board and vinyl siding. So I would think I'm not losing that much signal strength, right? I could go on about how different channels are better in the attic while some are better outside if you care to know.
Like I said, I will give a detailed channel report with tvfool references for my gen1 sbgh and sgbh10 for comparison when I finish the sbgh10 and get a good outdoor place (hopefully) for installation ready.