WHNE STA

[Splouge]

Thanks for your suggestions! But there's still some things I could not find the answer to.

Horizontal dipole reflectors are 5% longer than the half wavelength (half wavelength in this case is 7.8 ft, with a reflector length of 8.2 ft). Would the folded dipole reflector length be 8.2 ft, or is it 1.05 times one of those dimensions on that calculator? Would the spacing still be .15 wavelength? And what about the director lengths? The director lengths are supposed to be shorter than the receiving element, but with the folded dipole, the 47.5% wavelength directors would be longer than the folded dipole.

Regarding the balun, one of those "pitchfork" twin leads should work, right?

As for the attic, even though I don't have metal roofing, there still isn't a window up there. Is height more important than a clear line of sight?

And a non design related question: Does anyone know where I can get a 60-66 MHz band pass filter?

[CK-722]

With a metal roof, you want it outside. But generally both a clear line of sight and height will improve the signal. It improves the Fresnel Zone.

As for band pass filters, I don't really think that is necessary. Winegard and Channel Master and Jerrold used to sell tunable band reject filters, if you can figure out the source of interference. I would try things first before you do unnecessary things. You might try mounting it at the top of a camera or telescope tripod to experiment. A set of rabbit ears might help in early experimentation.

[Splouge]

I don't have metal roofing.

[Splouge]

Also, my intention is to put the antenna on my patio, which is made entirely of wood and faces north. I never use my patio anyway. I'm going to attach the metal elements to some lumber and then attach the lumber to my patio railing. That way, I won't have a mast to ground.

The patio area is 10 ft x 10 ft, and the railing is 5 ft above the ground.

[innate-in-you]

Thanks for your suggestions! But there's still some things I could not find the answer to.

Horizontal dipole reflectors are 5% longer than the half wavelength (half wavelength in this case is 7.8 ft, with a reflector length of 8.2 ft). Would the folded dipole reflector length be 8.2 ft, or is it 1.05 times one of those dimensions on that calculator? Would the spacing still be .15 wavelength? And what about the director lengths? The director lengths are supposed to be shorter than the receiving element, but with the folded dipole, the 47.5% wavelength directors would be longer than the folded dipole.

Regarding the balun, one of those "pitchfork" twin leads should work, right?

As for the attic, even though I don't have metal roofing, there still isn't a window up there. Is height more important than a clear line of sight?

And a non design related question: Does anyone know where I can get a 60-66 MHz band pass filter?

You won't need a bandpass filter, or, at least until the day another station close to you opens up for business on channel 2 of channel 4, that is significantly stronger than WHNE-LD.

Here, I have an attic antenna system that combines a long yagi for UHF with a folded dipole antenna, fabricated from twinlead, for channels 11, 13 and 40 (which is actually RF channel 5). Channels 11 & 13 (actually on their respective RF channels) work as a third harmonic antenna, not that performance matters as those stations are only ten miles distant.

The folded dipole looks just like the folded FM dipole that were packed with every stereo set back in the day, only longer.

[innate-in-you]

Thanks for your suggestions! But there's still some things I could not find the answer to.

Horizontal dipole reflectors are 5% longer than the half wavelength (half wavelength in this case is 7.8 ft, with a reflector length of 8.2 ft). Would the folded dipole reflector length be 8.2 ft, or is it 1.05 times one of those dimensions on that calculator? Would the spacing still be .15 wavelength? And what about the director lengths? The director lengths are supposed to be shorter than the receiving element, but with the folded dipole, the 47.5% wavelength directors would be longer than the folded dipole.

Regarding the balun, one of those "pitchfork" twin leads should work, right?

As for the attic, even though I don't have metal roofing, there still isn't a window up there. Is height more important than a clear line of sight?

And a non design related question: Does anyone know where I can get a 60-66 MHz band pass filter?

You won't need a bandpass filter, or, at least until the day another station close to you opens up for business on channel 2 or channel 4, that is significantly stronger than WHNE-LD.

Here, I have an attic antenna system that combines a long yagi for UHF with a folded dipole antenna, fabricated from twinlead, for channels 11, 13 and 40 (which is actually RF channel 5). Channels 11 & 13 (actually on their respective RF channels) work by using the dipole as a third harmonic antenna. Not that performance matters, as those stations are only ten miles distant.

The folded dipole looks just like the folded FM dipoles that were packed with every stereo set back in the day, only longer.