A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Home Built
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

VHF Aviation FBO Antenna



 
 
Thread Tools Display Modes
  #1  
Old January 23rd 12, 04:43 AM posted to rec.aviation.homebuilt
Phil
external usenet poster
 
Posts: 22
Default VHF Aviation FBO Antenna

Hello , am looking for advise on a VHF Omni directional antenna for a small
fixed base operation , looked at a commercial ant. and the price is a little
high for a 1/4 wave vertical , am sure the quality is there but am wondering
if I could modify a Ringo or something else to work just as good , would
have it resonate on 123.000 as this is our Unicom freq., a little gain would
be OK .
Thanks
Phil L.
W8KLK


Ads
  #2  
Old January 23rd 12, 05:10 AM posted to rec.aviation.homebuilt
Bob
external usenet poster
 
Posts: 2
Default VHF Aviation FBO Antenna

On Sun, 22 Jan 2012 23:43:13 -0500, "Phil" wrote:

Hello , am looking for advise on a VHF Omni directional antenna for a small
fixed base operation , looked at a commercial ant. and the price is a little
high for a 1/4 wave vertical , am sure the quality is there but am wondering
if I could modify a Ringo or something else to work just as good , would
have it resonate on 123.000 as this is our Unicom freq., a little gain would
be OK .
Thanks
Phil L.
W8KLK


Have you looked at RST?

Regards,
Bob KA7HLB
  #3  
Old January 23rd 12, 06:31 AM posted to rec.aviation.homebuilt
Wayne Paul
external usenet poster
 
Posts: 905
Default VHF Aviation FBO Antenna



"Phil" wrote in message ...
Hello , am looking for advise on a VHF Omni directional antenna for a
small fixed base operation , looked at a commercial ant. and the price is
a little high for a 1/4 wave vertical , am sure the quality is there but
am wondering if I could modify a Ringo or something else to work just as
good , would have it resonate on 123.000 as this is our Unicom freq., a
little gain would be OK .
Thanks
Phil L.
W8KLK


Phil,

Why don't you build a J-Bar?
http://www.soaridaho.com/Antenna/J-Bar_Antenna.htm

Or even simpler, sting the following antenna in side a vertical piece of PVC
pipe.
http://www.soaridaho.com/Antenna/

Wayne
W7ADK





  #4  
Old January 23rd 12, 11:35 AM posted to rec.aviation.homebuilt
Scott[_7_]
external usenet poster
 
Posts: 257
Default VHF Aviation FBO Antenna

On 1-23-2012 04:43, Phil wrote:
Hello , am looking for advise on a VHF Omni directional antenna for a small
fixed base operation , looked at a commercial ant. and the price is a little
high for a 1/4 wave vertical , am sure the quality is there but am wondering
if I could modify a Ringo or something else to work just as good , would
have it resonate on 123.000 as this is our Unicom freq., a little gain would
be OK .
Thanks
Phil L.
W8KLK




Of course, there is always the standard 1/4 wave antenna made with an
SO-239 chassis mount antenna connector. 1/16" brass rod from
Menards/Home Depot, etc. works great for the elements.

At 123 MHz, the vertical element for the center pin should be just shy
of 23" total from tip to bottom of the solder cup on the connector
(22.83" to be exact, but not extremely critical) and the radial elements
should be about 24" and bent so they droop at a 45 degree angle.

A standard PL259 connector fits nicely inside a piece of 3/4" copper
water pipe. You can cut some slots about 3/4" long in the end of the
pipe with a hacksaw , slide the PL259 in until the SO239 bottoms out
against the pipe and secure with a hose clamp. I would use a short
piece of copper pipe as a long 10' piece might be apt to bend over in
high winds.

http://www.hamuniverse.com/2metergp.html

  #5  
Old January 25th 12, 06:07 PM posted to rec.aviation.homebuilt
RST Engineering[_2_]
external usenet poster
 
Posts: 36
Default VHF Aviation FBO Antenna

I just designed and made one for the son of one of my students. It
cost us about $5 in bits and pieces. I've posted it to my public
folder on Dropbox ) It will appear in Kitplanes
this May if you want to wait that long.

Use it with my compliments.

Jim

On Sun, 22 Jan 2012 23:43:13 -0500, "Phil" wrote:

Hello , am looking for advise on a VHF Omni directional antenna for a small
fixed base operation , looked at a commercial ant. and the price is a little
high for a 1/4 wave vertical , am sure the quality is there but am wondering
if I could modify a Ringo or something else to work just as good , would
have it resonate on 123.000 as this is our Unicom freq., a little gain would
be OK .
Thanks
Phil L.
W8KLK


 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Com Antenna Tony Condon[_2_] Soaring 2 May 5th 09 03:11 AM
antenna et Home Built 7 June 29th 08 04:00 PM
GPS Antenna 150flivver Owning 14 December 11th 05 05:38 AM
Using Wideband Aviation Antenna for TV Reception? CHANGE USERNAME TO westes General Aviation 1 July 7th 04 12:32 AM
where's the THRILL is flying, rec.aviation.balloon, rec.aviation.hang-gliding, rec.aviation.powerchutes, rec.aviation.soaring BW Rotorcraft 0 October 15th 03 11:42 AM


All times are GMT +1. The time now is 02:42 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright 2004-2018 AviationBanter.
The comments are property of their posters.