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Antenna R&D
lost channels on antenna
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<p>[QUOTE="Rickideemus, post: 115240, member: 12677"]I can't say for sure -- I don't even know how many elements you used, or what kind of reflector. It seems like the Stellar Labs 4 bay would be a good choice, or at least a good first choice. You might wind up with two antennas leading to a two tuner setup (or A/B switches) on each TV. That's still going to be cheaper / easier to use / less upkeep than a Yagi with a rotor.</p><p></p><p>I will say I don't get a lotta good vibes on your antenna design virtuosity. Don't take it personally. :hail:</p><p></p><p>@Steve: I guess you're right about the bandwidth. I was looking at the chart on solidsignal, and it looks like 78 degrees only takes off about 5 dB for UHF. But the beamwidth is probably narrower up at channels 49 and 51, where rbf needs it.</p><p></p><p>What would you think about bending back the reflector and the elements a little to increase the beamwidth?? The great EV suggested that for his Kosmic SuperQuad antenna. </p><p></p><p></p><p></p><p>Worth a shot? Man, 78 degrees is so close, but so far away. I don't think you can put the two halves of an 8 bay 78 degrees apart. Massive multipath. I think it has to be 90+ degrees.</p><p></p><p>Rick[/QUOTE]</p><p></p>
[QUOTE="Rickideemus, post: 115240, member: 12677"]I can't say for sure -- I don't even know how many elements you used, or what kind of reflector. It seems like the Stellar Labs 4 bay would be a good choice, or at least a good first choice. You might wind up with two antennas leading to a two tuner setup (or A/B switches) on each TV. That's still going to be cheaper / easier to use / less upkeep than a Yagi with a rotor. I will say I don't get a lotta good vibes on your antenna design virtuosity. Don't take it personally. :hail: @Steve: I guess you're right about the bandwidth. I was looking at the chart on solidsignal, and it looks like 78 degrees only takes off about 5 dB for UHF. But the beamwidth is probably narrower up at channels 49 and 51, where rbf needs it. What would you think about bending back the reflector and the elements a little to increase the beamwidth?? The great EV suggested that for his Kosmic SuperQuad antenna. Worth a shot? Man, 78 degrees is so close, but so far away. I don't think you can put the two halves of an 8 bay 78 degrees apart. Massive multipath. I think it has to be 90+ degrees. Rick[/QUOTE]
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