I've been looking at numerous websites and videos for building digital tv antennas. I live in the country and am a long distance from all stations. (most are at least 50 miles). The plans for the antenna are mostly for a single, double, or 4 pole bow tie. But they all have different whisker lengths which is for different stations (vhf, lower uhf, middle uhf, and high uhf). They have referred to an online chart that shows the stations frequencies and the length of these whiskers that are most suitable for that frequency. i'm not finding such a chart.
I'm mostly looking to improve the upper VHF, channels 8 thru 10 (actual). I have one of those small RCA amplified antennas that are meant to mount on a wall or on a mast. I have mine on a mast, made from several lengths of 1-1/4" EMT conduit. It sits about 5 feet above the highest part of my roof. I'm getting a good signal for stations located between 15 to 50 (actual), but those other ones I mentioned above dont come in very good, or not at all.
I just want to play around with some ofthese bow tie antennas made from scrap wire and stuff, but so far, I only know that the whiskers need to be longer for the low uhf and upper vhf channels. I'd like to make one that is suitable for top gain for those channels 8 thru 10 (actual).
Thanks for all help.