GMT, I need some help on a totally unrelated topic. You seem really bright, so maybe you can help me with this.
I am a UHF antenna guy. HD signals come free over VHF and UHF. Anyways, I've tried a bunch of commercial antennas, and they've worked ok, but I'm designing my own stuff now, and would like your scientific opinion.
I currently have a multi-bay bowtie antenna. It works pretty good, but I'm having issues pulling in the upper frequencies, as we still use UHF 53 and above in Canada. The problem I'm having is that FOX in Buffalo is located at UHF 14. That's low in the frequency band. Anyways, I have an 8 bay bowtie antenna pointed at Buffalo, and have it amped with a CM7778 UHF pre-amplifier. It has good results, but due to amplification, and the sheer number of bowties, it's very directional. Buffalo is located at about 140 degrees magnetic North. Toronto is at 60 degrees magnetic North, so there's a fair delta between the two cities.
I need an antenna with excellent low UHF gain, as the Buffalo transmit antenna is directional for UHF 14. However, I need excellent gain at the high UHF band as well, for the Canadian HD channels. Now, I have my current antenna on a rotor, but I'd like to combine two antennas, and remove the rotor.
My question is, do you think I should make another 8-bay bowtie antenna to combine with my first, then combine them and amp together? Should I build a Dual Loop Chireix antenna, which is a lot smaller than the bowtie, but doesn't have the same UHF high gain figure? What should I do? I've been working on this for a couple of weekends now, but seeing as I have the smartest man I've ever encountered on a newsgroup at my disposal, I figured I'd use your powers for my benefit, and give the CTE guys a little rest for awhile.
Get back to me with the exact way I should do this. Thanks!