PDA

View Full Version : Antenna


BMT (RIP)
12-05-2009, 17:02
Ok Echo's can you ID this antenna?

http://www.af.mil/shared/media/photodb/photos/091105-F-7797P-105.jpg

BMT

mojaveman
12-05-2009, 18:48
Phased Array?

lindy
12-05-2009, 19:23
BMT,

Not an Echo but I'd sure like to play in this round! Please consider me for "phone a friend"!

Lindy

Ret10Echo
12-05-2009, 19:52
Phased array?

Yagi?

Shhh....he said "Echos"...


BMT, I have my bid in a sealed envelope here at the house. :D

But, I am retired so I leave it to the active studs.....

mojaveman
12-05-2009, 20:13
Shhh....he said "Echos"...


BMT, I have my bid in a sealed envelope here at the house. :D

But, I am retired so I leave it to the active studs.....

I once was an 05B/18E many years ago. :lifter

I too endured the torture of learning International Morse Code and learned how to make antennas from junk.

How do you think that I was able to try and guess what type of antenna that was? ;)

head
12-05-2009, 20:21
Looks like an AS-3482. It's some model of rotatable log-periodic antenna. Directional and good for medium to long range HF.

albeham
12-05-2009, 20:58
HF for Air-Craft

LPA setup for high angle radiation. Model : Big (Don't know, but I can find out.

This model can be rotated by remote switching.

Why?


AL 18E :munchin

look here : http://www.antennaproducts.com/LPH89DETAIL.htm

PS Head I agree with you.

BMT (RIP)
12-06-2009, 04:46
albeham nailed it!!
Used by the Air Force with the Global HF net.

Try 11.175USB and 8.992USB.

8.992 come's in LIMA CHARLIE here in FL using an end fed long wire.

BMT

BMT (RIP)
12-06-2009, 04:52
http://mt-milcom.blogspot.com/2009/12/rural-communications-site-has-global.html

BMT

Ret10Echo
12-06-2009, 06:24
I once was an 05B/18E many years ago. :lifter

I too endured the torture of learning International Morse Code and learned how to make antennas from junk.

How do you think that I was able to try and guess what type of antenna that was? ;)


A fellow code-room survivor....:lifter My apologies for applying impedence to your R.F.....:D


R10

Ret10Echo
12-06-2009, 06:52
This model can be rotated by remote switching.

Why?


AL 18E :munchin

Radiation pattern..... (I would say main lobe orientation, but we often used the back lobe of an LPA for shorter links...)



ability for multiple stations to access....

albeham
12-06-2009, 15:38
Radiation pattern..... (I would say main lobe orientation, but we often used the back lobe of an LPA for shorter links...)



ability for multiple stations to access....

You know it all..TNXS.

I once made a LPA out of wire, it was huge, it was bigger then huge, but worked the world.

QRZ DE AL