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In Reply to: RE: FM Antenna? posted by M3 lover on June 17, 2017 at 09:55:49
Yes, a dipole mounted to a piece of foam board for portability. I'll try it.
Also you bring up a great idea; automotive antennas. I think I might have a spare out in the garage. The one I used on my Mini back in the seventies. I'll see if I can't dig that out.
Steve, I actually use a vertical antenna for FM. It is a single rod telescoping type like an auto antenna. It was home made by a buddy many years ago, I think the only specialized part is a Balun to allow 75 ohm cable for connection. It includes a dummy reflector rod at the opposite end of the base. Someone else who knows more about antennas can explain that. With it I can receive a stereo signal (most days) from the classical station in LA, albeit over ocean not mountains from San Diego, at least 100 miles away.
"The piano ain't got no wrong notes." Thelonious Monk
Yesterday, I tried a few things. And all of it worked to some degree or another. Also on the list of things to try, was an automotive antenna. At first I looked for my old antenna that I'd been using on my old Mini. Could not find that. Too bad because it was kind of cool, having a chrome plated coil spring at its base above the mounting bracket. Alas.
So I drove across the bridge (less than a mile) to my local Ace Hardware store and found one. What I bought, for $9.99, was an automotive antenna featuring a 30 inch long stainless steel rod. This antenna I modified by clipping off the oem connector plug and soldering on a 75 ohm balun to match input at my FM tuner. I used this with and without amplification. I can say that in this early implementation of it, it betters the Parsec Beam Booster amplified antenna that I have had for a number of years. when I used this vertical (automotive) antenna in combination with a RadioShack 2-2way signal amplifier, it brought in signal strength on most of the stations on my above posted list (see new data this thread) that was about 1 bar less than with the dipole I have mounted up on the wall.
I'm not done with it. Because this antenna features a fixed stainless steel rod, I think I will see what other mods are possible. I believe these can be made tunable and also modified as your friend did yours with a dummy reflector, etc. But I have much to study before chasing this rabbit.
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