[amsat-bb] Another go at Antennas!

Chris Bloy chris at photofuture.co.uk
Mon Oct 18 08:56:55 PDT 2010

Hi All,
I know this has been properly discussed a 1000 times in the past, but I am
going to ask it anyway :-

Currently I have a crossed 2 (9 ele) / 70 (19 ele) yagi that appears to work
quite well on 2m up 70 down, but does suffer de-sense on 70/2 ops. So my
question is twofold, first I am thinking about having two antennas mounted
on the rotator which will stop the de-sense?

I am looking at getting a WiMO X-Quad for 70cms but the website doesn't
appear to be to helpful in the polarization side of things! The X-quad is
fed by two times N-Types and they sell a phasing harness. Which brings me to
my question.. What is better L/RHCP as they don't appear to sell a switcher
for 70cms to changer the polarization manually?

I think this is why I couldn't work the linear satellites with a 70cms
uplink? I would like to try and make contacts on AO7,HO68 and VO52!

FM is no problem when people listen!

Thanks in advance,

Chris - M0DQO

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