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Shortwave/Medium wave antennas...
1/12/2000 1:52:22 PMJustin Shetler
Hello everyone,

Now that I have my big Zenith console up and running, I would like to construct an antenna a step above the wire-around-the-room variety. I was hoping to find some plans searching the internet, but have came up empty handed. I have the entire attict to work with as well as a 50 foot tower we use for TV. Anyone know of any good websites or have suggestions? Someone suggested wrapping several turns of wire around the mast of the tower and running the line down the tower and through the attict to the set. Seem logical? Also, I have noticed on many of the sets I've found, since recently getting into the hobby, have had condensers added between the antenna post and wire connection. they're always differing values; I suppose they are a home attempt at noise reduction, but what is the logical principle behind the differing values? Thanks as always for your helpful information.

Justin

1/12/2000 2:42:22 PMNorm Leal
Hi Justin

That antenna sounds as good as any. The higher and longer the antenna usually the better for general coverage. If you to use the radio on a specific frequency a certain length of wire would be best.

Condensers between the antenna and radio serve a couple purposes. They will isolate the radio from the antenna, preventing shock and sometimes sparks. They also minimizes coupling to the radio. A large antenna, connected to the antenna terminal, adds capacity and detunes the input circuit. Some radios have a adjustable input cap.

You may want to bring your long antenna through a panel which has a variable capacitor.

Norm

: Hello everyone,

: Now that I have my big Zenith console up and running, I would like to construct an antenna a step above the wire-around-the-room variety. I was hoping to find some plans searching the internet, but have came up empty handed. I have the entire attict to work with as well as a 50 foot tower we use for TV. Anyone know of any good websites or have suggestions? Someone suggested wrapping several turns of wire around the mast of the tower and running the line down the tower and through the attict to the set. Seem logical? Also, I have noticed on many of the sets I've found, since recently getting into the hobby, have had condensers added between the antenna post and wire connection. they're always differing values; I suppose they are a home attempt at noise reduction, but what is the logical principle behind the differing values? Thanks as always for your helpful information.

: Justin

10/7/2000 2:17:58 PMPeter
Hi everyone ,
We have a problem : we want to make or buy an antenna that can transmit on 1044 Khz. Can someone help us. Please contact us : peter.alexander@belgacom.net

: That antenna sounds as good as any. The higher and longer the antenna usually the better for general coverage. If you to use the radio on a specific frequency a certain length of wire would be best.

: Condensers between the antenna and radio serve a couple purposes. They will isolate the radio from the antenna, preventing shock and sometimes sparks. They also minimizes coupling to the radio. A large antenna, connected to the antenna terminal, adds capacity and detunes the input circuit. Some radios have a adjustable input cap.

: You may want to bring your long antenna through a panel which has a variable capacitor.

: Norm

: : Hello everyone,

: : Now that I have my big Zenith console up and running, I would like to construct an antenna a step above the wire-around-the-room variety. I was hoping to find some plans searching the internet, but have came up empty handed. I have the entire attict to work with as well as a 50 foot tower we use for TV. Anyone know of any good websites or have suggestions? Someone suggested wrapping several turns of wire around the mast of the tower and running the line down the tower and through the attict to the set. Seem logical? Also, I have noticed on many of the sets I've found, since recently getting into the hobby, have had condensers added between the antenna post and wire connection. they're always differing values; I suppose they are a home attempt at noise reduction, but what is the logical principle behind the differing values? Thanks as always for your helpful information.

: : Justin



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