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Need advice for groundcrew vehicle antenna for 123.5



 
 
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  #1  
Old October 23rd 10, 12:25 AM posted to rec.aviation.soaring
John Bojack[_2_]
external usenet poster
 
Posts: 40
Default Need advice for groundcrew vehicle antenna for 123.5

I have a Roadtrek (small Chevy van converted to a mini-motorhome) which has
a fiberglass upper roof.

Wanting to set up good ground to air communications ability on 123.5 and
123.3 with a Tait mobile radio in the vehicle. The problem is establishing
a ground plane with the fiberglass roof.

Other than a magnetic mount antenna on the metal hood....any suggestions?

Wouldn't mind a fiberglass whip type set-up if the performance gains
justified it, but I would like it to be functional while driving....also
don't know how to establish the ground plane.

Appreciate any advice. Thanks!

J4


  #2  
Old October 23rd 10, 12:40 AM posted to rec.aviation.soaring
Darryl Ramm
external usenet poster
 
Posts: 2,403
Default Need advice for groundcrew vehicle antenna for 123.5

On Oct 22, 4:25*pm, "John Bojack" wrote:
I have a Roadtrek (small Chevy van converted to a mini-motorhome) which has
a fiberglass upper roof.

Wanting to set up good ground to air communications ability on 123.5 and
123.3 with a Tait mobile radio in the vehicle. * The problem is establishing
a ground plane with the fiberglass roof.

Other than a magnetic mount antenna on the metal hood....any suggestions?

Wouldn't mind a fiberglass whip type set-up if the performance gains
justified it, but I would like it to be functional while driving....also
don't know how to establish the ground plane.

Appreciate any advice. *Thanks!

J4


I'll just point out that 5/8 wavelength whip antennas do not need a
ground plane. 1/4 wave ones definitely do. You may well do better with
a 5/8 one for lots of reasons. Your need there will be a secure mount
location to the longer whip.

Darryl
  #3  
Old October 23rd 10, 01:29 AM posted to rec.aviation.soaring
Wayne Paul
external usenet poster
 
Posts: 905
Default Need advice for groundcrew vehicle antenna for 123.5

Darryl,

I disagree with you on this one. A 5/8 DOES require a ground plane. However, a 1/2 wave length doesn't.

Respectfully,

Wayne
Ham radio W7ADK
http://www.soaridaho.com/


"Darryl Ramm" wrote in message ...
On Oct 22, 4:25 pm, "John Bojack" wrote:

I'll just point out that 5/8 wavelength whip antennas do not need a
ground plane. 1/4 wave ones definitely do. You may well do better with
a 5/8 one for lots of reasons. Your need there will be a secure mount
location to the longer whip.

Darryl
  #4  
Old October 23rd 10, 02:43 AM posted to rec.aviation.soaring
Darryl Ramm
external usenet poster
 
Posts: 2,403
Default Need advice for groundcrew vehicle antenna for 123.5

Wayne

Doh what a silly slip, thanks for catching that. But you can get
base 5/8 antennas that include the round plane stubs like Paul
mentioned here.

Darryl
(I won't embarrass myself with my expired amateur callsign).

On Oct 22, 5:29*pm, "Wayne Paul" wrote:
Darryl,

I disagree with you on this one. *A 5/8 DOES require a ground plane. *However, a 1/2 wave length doesn't.

Respectfully,

Wayne
Ham radio W7ADKhttp://www.soaridaho.com/

"Darryl Ramm" wrote in ...

On Oct 22, 4:25 pm, "John Bojack" wrote:

I'll just point out that 5/8 wavelength whip antennas do not need a
ground plane. 1/4 wave ones definitely do. You may well do better with
a 5/8 one for lots of reasons. Your need there will be a secure mount
location to the longer whip.

Darryl


  #5  
Old October 23rd 10, 05:17 AM posted to rec.aviation.soaring
glidergeek
external usenet poster
 
Posts: 183
Default Need advice for groundcrew vehicle antenna for 123.5

On Oct 22, 6:43*pm, Darryl Ramm wrote:
Wayne

Doh what a silly slip, thanks for catching that. *But you can get
base *5/8 antennas that include the round plane stubs like Paul
mentioned here.

Darryl
(I won't embarrass myself with my expired amateur callsign).

On Oct 22, 5:29*pm, "Wayne Paul" wrote:

Darryl,


I disagree with you on this one. *A 5/8 DOES require a ground plane. *However, a 1/2 wave length doesn't.


Respectfully,


Wayne
Ham radio W7ADKhttp://www.soaridaho.com/


"Darryl Ramm" wrote in ...


On Oct 22, 4:25 pm, "John Bojack" wrote:


I'll just point out that 5/8 wavelength whip antennas do not need a
ground plane. 1/4 wave ones definitely do. You may well do better with
a 5/8 one for lots of reasons. Your need there will be a secure mount
location to the longer whip.


Darryl


In your defense Darryl I've always had better trans/receive when I
mount a 5/8 wave antenna on a 40' stainless steel tanker than I do on
a fiberglass roof Kenworth tractor. 10-4
  #6  
Old October 26th 10, 01:35 AM posted to rec.aviation.soaring
Grider Pirate
external usenet poster
 
Posts: 238
Default Need advice for groundcrew vehicle antenna for 123.5

On Oct 22, 5:29*pm, "Wayne Paul" wrote:
Darryl,

I disagree with you on this one. *A 5/8 DOES require a ground plane. *However, a 1/2 wave length doesn't.

Respectfully,

Wayne
Ham radio W7ADKhttp://www.soaridaho.com/

"Darryl Ramm" wrote in ...

On Oct 22, 4:25 pm, "John Bojack" wrote:

I'll just point out that 5/8 wavelength whip antennas do not need a
ground plane. 1/4 wave ones definitely do. You may well do better with
a 5/8 one for lots of reasons. Your need there will be a secure mount
location to the longer whip.

Darryl


Wayne,
Wouldn't this have been a good place to link to your 'coax dipole'
antenna?
(I was looking for it and got side-tracked [squirrel!] looking at
Scheder stuff)
  #7  
Old October 26th 10, 01:45 AM posted to rec.aviation.soaring
Mike the Strike
external usenet poster
 
Posts: 952
Default Need advice for groundcrew vehicle antenna for 123.5

What is "ground crew"??

Mike


  #8  
Old October 26th 10, 01:51 AM posted to rec.aviation.soaring
Wayne Paul
external usenet poster
 
Posts: 905
Default Need advice for groundcrew vehicle antenna for 123.5

"Grider Pirate" wrote in message ...

Wayne,
Wouldn't this have been a good place to link to your 'coax dipole'
antenna?
(I was looking for it and got side-tracked [squirrel!] looking at
Scheder stuff)


James,

Is this the link you were looking for (http://www.soaridaho.com/Antenna/) before you got side-tracked on the Schreder Designs (http://www.soaridaho.com/Schreder/) website?

Wayne
HP-14 "6F"
http://www.soaridaho.com/

  #9  
Old October 26th 10, 04:09 AM posted to rec.aviation.soaring
Grider Pirate
external usenet poster
 
Posts: 238
Default Need advice for groundcrew vehicle antenna for 123.5

On Oct 25, 5:51*pm, "Wayne Paul" wrote:
"Grider Pirate" wrote in ...


Wayne,
*Wouldn't this have been a good place to link to your 'coax dipole'
antenna?
(I was looking for it and got side-tracked [squirrel!] looking at
Scheder stuff)


James,

Is this the link you were looking for (http://www.soaridaho.com/Antenna/) before you got side-tracked on the Schreder Designs (http://www.soaridaho.com/Schreder/) website?

Wayne
HP-14 "6F"http://www.soaridaho.com/


That's the one! BTW, without that link, I don't know how to find it.
  #10  
Old October 23rd 10, 01:38 AM posted to rec.aviation.soaring
Paul Remde
external usenet poster
 
Posts: 1,691
Default Need advice for groundcrew vehicle antenna for 123.5

Hi John,

I sell a nice 5/8 wave antenna that includes 4 radial rods at the base which
act as the ground plane. You can see details he
http://www.cumulus-soaring.com/larsen.htm#Larsen-BS-5-8

Best Regards,

Paul Remde
Cumulus Soaring, Inc.

"John Bojack" wrote in message
...
I have a Roadtrek (small Chevy van converted to a mini-motorhome) which has
a fiberglass upper roof.

Wanting to set up good ground to air communications ability on 123.5 and
123.3 with a Tait mobile radio in the vehicle. The problem is
establishing a ground plane with the fiberglass roof.

Other than a magnetic mount antenna on the metal hood....any suggestions?

Wouldn't mind a fiberglass whip type set-up if the performance gains
justified it, but I would like it to be functional while driving....also
don't know how to establish the ground plane.

Appreciate any advice. Thanks!

J4


 




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