Build a AM Antenna Lens

AM Antenna Lens

I miss spoke in the video about the length of the 22 gauge wire. It is 40 feet that is wrapped around the Styrofoam not 75. My mind was already set on 60-75 feet of wire needed, so that the Lens would cover the total AM band. If you build one of these use 60-75 feet of 22 gauge wire and as you build up the number of turns, twist a tap ever so many turns. The taps will give you much greater range option.

This antenna lens works with radios that have rod antennas and wire loop antennas. It does not work with radios with a straight wire antenna.

Category:

Education

Tags:

• AM
• Antenna
• Lens
• Radio
• build

[jim874]

Most likely a 160 or 80 meter antenna.

My property is not all that big. I use a single G5RVjr up 70 ft in a tree, with an old Dentron tuner for my ham gear

[AllAmericanFiveRadio]

Sounds like a great setup! One of the more interesting parts of Ham Radio is antenna design, it real is fascinating!

[gbowne1]

@AllAmericanFiveRadio There are people building their own DTV / HDTV antennas. Look them up on google too. The ancient UHF Bow Tie antennas work well. Another good choice is the UHF hoop antenna. which came out when may locales started adding the UHF channels... our first one was ch22 where I live.

[tobymichelletyler]

I love the AM station in this video. Concervatism in exile!

[AllAmericanFiveRadio]

For this antenna coil all you really need is the right length wire and tuning capacitor for the frequencies you want to cover. This one is easy, just make it look neat. THANKS!

[AllAmericanFiveRadio]

As the frequency increases from the AM bands to the TV bands the characteristics of how the wave travels through the air changes. So what may work well at low frequency will not work at a higher frequency.

[AllAmericanFiveRadio]

What I did for TV was I bought an antenna amplifier from Radio Shack. For TV's a loop is not practical because of the much higher frequencies.

[AllAmericanFiveRadio]

ALL TV's are going digital in 2009, so for an low res analog TV a converter box is a must.

[AllAmericanFiveRadio]

I help a friend through up wire all over his three acre antenna farm all the time. Its very interest stuff because he can make accurate measurements. Even tried out a wire Yagi, don't remember ham band, but the reflector element covered about half the width of his property, even pointed it toward Tennessee. Antennas are a very interesting study.

[jim874]

I use a 40ft outdoor random length up 30 ft for 4 shortwave receivers.I use a MFJ-901B antenna tuner with the long wire before it is fed to multiple receivers. As I use a particular receiver, I use the MFJ-901 to peak the receiver. I see no interaction between receiver front ends. Getting the antenna up 30ft in the air has reduced line noise. You can make a good stealth antenna with some of that magnet wire. Just scrape the enamel off the end that connects to the antenna connection.