RE: [amsat-bb] AO-14, antennae etc

[Tony Langdon <tlangdon@xxxxxxxxxxxxxxxxxx>]

No, I haven't.  It would be easy to change the element lengths by using some
sort of shim on the bottom and extending the top of the antenna.  The
phasing coil would be a tad short though.

For satellite work, a 1/4 wave would probably work better anyway, as it
would have a higher angle of radiation.  a 2m 1/4 wave (3/4 wave at 70cm) is
particularly good for high elevation passes.

Tony Langdon.
Systems Development and Support.
ATC Training Australasia.  Level 2 321 Exhibition St Melbourne  3000.
Phone:  1300 13 1983     WWW:  http://www.atctraining.com.au


> -----Original Message-----
> From: Norm McMillan [mailto:njmcmillan@bigpond.com]
> Sent: Wednesday, 10 May 2000 9:51
> To: amsat-bb@AMSAT.Org
> Subject: [amsat-bb] AO-14, antennae etc
> 
> 
> 
> 
> 
> 
> 
> G'day,
> This ones for the VK's. Has anyone tried modifying a UHF CB commercial
> antenna for use as a 70 cm whip. Thinking of the 4dB "coil in 
> the middle
> type...1/2 wave over 1/4 wave I think.
> 
> It'd be silly to reinvent the wheel!!! so if some one else 
> has done it it
> may save me some time.
> 
> 
> 
> 
> 
> Norm, VK2XCI.
> Mount Hope NSW. Voice of the Edge of The Outback
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