Ham, Shortwave radio, antenna 160 meter receive loop. ka1klo

demo http://www.youtube.com/watch?v=tzyavTm-I_0
All of my antennas are fed with 75 ohm catv cable I have 15 antennas some are multibanders, some are home brewed. The loop is 3/4" catv self supporting 20' long tunned for 1.900 with 400pf + or - capacitors at center conductor and is center fed. The outer sheild of loop has a 2" cut out in shield at the 10' mark and both halfs are joined to the sheild to shield of coax. You must use a preamp. I use an mfj tuneable preamp but have found the preamps in my 756 work well also. These loops can be put an a rotor and used to null noise or find noise and signals. Thanks for looking. I found all this info in old ARRL antenna books. Except for the 3/4 inch hardline Sincerely, John De ka1klo

Category:

Howto & Style

Tags:

• Home
• Brew
• antennas
• ham
• ka1klo
• amateur
• communications
• shortwave
• Venure
• loop

[Venure]

+ or --  400 pf caps Must be tuned for 1.900 mhz. ~~~20 Ft. 0.06 wave length.

[Venure]

If you read video discription on right it is explained. I plan to put the loop on a rotor as soon as weather breaks. 73

[itaRomeo]

Che voce del cazzo

[wx9dx]

what is in the box? How long is the 3/4" cable?

Thanks!! :)

Jimmy, WX9DX

[MrBinkynator]

Definitely has a very hammy look to it...

[kc7fys]

I'm also embarking on my first magnetic loop this weekend. I will use copper tubing, however.

[ironmill]

I designed the polar loop using coax with about 540 feet square. Use the shield. Connected to 450 ohm ladder line. Since the loop is about 100 ohms my balun is home made to match. it is very quite for 160 but during the summer it can have static on the antenna. Much better for winter. We used it in Alaska since the shielded coax ket swr from changing due to ice etc.

AL7KT

[k6tpl]

I have found that the antenna I use on 160 is very noisy on receive so am thinking of using a seperate antenna for receive...Thanks for showing me yours! 73 Jer

[AlamoCityCello]

thats some SKANKY homebrew dude!