[Moon-net] How to mount and feed a 2x 2MXP32?

David Anderson GM4JJJ david at gm4jjj.co.uk
Thu Jan 24 03:38:56 CST 2008


On 24 Jan 2008, at 01:47, Bill Dzurilla wrote:

> Hi,
>
> We will be using 2x 2MXP32 for the Swan Island
> expedition and have a couple of questions:
>
> 1) Must the coax for each antenna be routed out behind
> the reflector, or is it OK to run the coax along the
> cross boom and configure the antennas in a X pattern,
> so that each antenna will be at a 45 degree angle from
> the coax?

You cannot run it along the boom even in X pattern.

Use another crossboom behind the DE to run the coax along. M2 show you  
where this would go if you use their T Brace.

See my webpage for details of how I did this with 4 M2 XPOL yagis.


> 2) Each antenna is 41' long and the cross boom is
> 180-190".  Will a Yaesu GT-5500 rotor be able to
> handle this?  If not, any recommendations for a
> suitable az-el rotor?  I think someone mentioned on
> the reflector that the Yaesu can even handle a
> well-balanced 4x.


No is my gut feeling. I'd use a Spid Az/El model. The standard RAS  
model would be more than capable, it is very heavy , however it does  
run from DC which could be useful.



73
___________________________________________________________________________
David Anderson, GM4JJJ         E-mail: david at gm4jjj.co.uk
___________________________________________________________________________
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