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| | |-+  Airband Yagi antenna designs
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Author Topic: Airband Yagi antenna designs  (Read 61882 times)
saurabhchan
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« Reply #45 on: July 15, 2010, 04:21:28 AM »

Hi Dave,
I tried downloading the Pdf file but it says that it is corrupted file....can u help.
I am trying to build a yagi antenna based on that design

Thanks
Saurabh Chandra
These designs are reprinted with the permission of Kent England WA5VJB.  They appeared in the March 2008 issue of Popular Communications.

For those of you looking to get good airband reception in a particular direction, these antennas should work wonders for you.  And they are very inexpensive to build.

Enjoy - and you can find more designs and info at http://www.wa5vjb.com (currently in the process of changing DNS so try tomorrow).

-Dave


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Caleb
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« Reply #46 on: July 15, 2010, 03:35:57 PM »

One of my friends makes Yagi's. He currently has the desighn for military air, but VHF will be out soon. He has picked up (DX'ed) ground stations from over 175 miles away. They have a 9.8db gain. Scroll down to watch the video. This guy has the best milair setup I have ever seen. He is the best milair antenna maker by far.

Also, if you live in a less populated area, you may want to try a preamp. This is the same company that makes it for NASA www.AngleLinear.com

Yagi's are great for ATC, and air. They will do the BEST job.

73s
Caleb
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Vatsim ZMA ARTCC S2 | Student Pilot
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AB9IL
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« Reply #47 on: November 17, 2010, 02:33:32 AM »

Is anyone interested in a 10 element yagi or log periodic antenna for the VHF air band?  I've been experimenting with some java number crunching programs, and worked out data for two such high gain antennas.  If you're interested in a particular airport or ATC sector that is hard to receive, one of these antennas could improve reception.

Here's the link: http://www.ab9il.net/aviation/airband-antenna1.html

The idea for an air band project came after enjoying good results with similar wi fi and FM broadcast antennas; 10 elements is about as large as practical for the aviation band.  Beyond that it makes more sense to just locate a receiver closer to the action.

Regards,
Phil
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MSLP
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« Reply #48 on: February 02, 2016, 10:39:41 AM »

what is the best antenna for good reception these of air signal
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InterpreDemon
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« Reply #49 on: February 02, 2016, 01:01:20 PM »

It depends upon many factors... what portions of the band you need to listen to, distance from ground stations or airports, elevation of your site above ground level, etc., not to mention space, mounting requirements, lightning protection and cost. For example, the antennas described in the prior few posts (5 yrs old) are about 12' long, need a decent and strong mounting and, unless you are pointing at a single station or airport within the radio horizon and far away, or you are surrounded by powerful radio and TV stations and need to point a pencil thin beam at a nearby airport in order to hear low power walkie-talkies or airplane tugs on the ground without interference, you would need an antenna rotator in order to listen to anything from other directions. On the other hand, if you are located far from any airports or ground stations with no hope of ever picking up any ground traffic, a simple ground plane antenna made from five pieces of #12 solid copper wire, an SO-239 or "N" bulkhead adapter and a couple feet of 1" PVC pipe will pick up just about anything in the air out to a few hundred miles depending upon how high they are flying.

Best would be to describe your situation and needs, then folks here can chime in with recommendations.
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