[amsat-bb] Re: VO52 and verticals

w4upd updwrb at bristor-assoc.com
Thu Jun 9 10:12:34 PDT 2011

I have had some success with vertical monobanders on all of the birds 
including VO-52 and A0-7. I use a Ringo Ranger II on two meters and a 
1/4 wave homebrew two meter groundplane for 70cm, which makes it 3 waves 
long for 70cm. The main disadvantage I run into is that two different 
antennas located at different locations on the house here cause 
dissimilar tracking of the birds.

Remember, a vertical antenna with gain will cause your angle of 
radiation to be lower than a simple 1/4 wave for that particular 
frequency. I find that with the Ringo my best angle is about 15 - 50 
degrees. The 1/4 wave 2 meter used on 70 cm is a bit better. It is 
difficult to work AO-7 with this arrangement but is doable.

Some day I'll get my arrays back in the air (down since the storms of '04').

Reid, W4UPD
Amsat #17002

On 6/9/2011 12:35 PM, John Geiger wrote:
> Has anyone had success getting into VO52 using a vertical, omnidirectional
> antenna on the uplink. I have a nice M2 2M9SSB for 2m but only have a
> dualband J pole to cover UHF with and wonder if I could get into VO52 with
> it for my uplink antenna.
> 73s John AA5JG
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