[Moon-net] 10GHz EME

[Brian Coleman]

Hello Ed

I think your system should work very well.  Have you found the VK3UM 
EMEcalc.exe program
(eg at http://www.sm2cew.com/download.htm ) . If you put your numbers into 
that it should tell you what to expect.

I don't think the length of rigid waveguide will be much of a problem.  If 
it had been flexible I would have suggested you test it because it can be 
very bad, but not always.


73 and hope to have QSO some day

Brian G4NNS


----- Original Message ----- 
From: "Edward R. Cole" <al7eb at acsalaska.net>
To: <moon-net at list-serv.davidv.net>
Sent: Saturday, September 30, 2006 5:56 PM
Subject: [Moon-net] 10GHz EME


> My efforts to 10-GHz have slipped over the years, but we just successfully
> moved the 2.4m ku-band dish to the new QTH.  It is currently set up with a
> cylindrical feed with two wr90 w/g runs (I suspect this was to provide
> orthoganal linear pols to the original VSAT system).  I propose to use one
> of these for intial testing and suppose this will result in linear pol.
> The dish is rotatable +/- 45 degrees in polarity.  I wonder if the roughly
> 2m of w/g will degrade performance?
>
> My plan is to mount a 4-port w/g switch at the back side of the dish and
> attach my 102-EME db6nt preamp on one port.  A wr90 coax transition will 
> be
> used to connect the 50w TWT which uses sma for output.
>
> I have some of these ideas on my 10-GHz EME webpage if anyone would look
> and comment on my plans.  I figure that it will be another couple years in
> building as 1296-EME is the goal for next summer.
>
> I follow the cp/linear pol discussion with interest.  CP can be done after
> the system is QRV with little problem.
> 73's,
> Ed - KL7UW
> =========================================
> http://www.qsl.net/al7eb - BP40iq
> 144-EME: FT-847, mgf-1801/1402, 4xM2-xpol-20, 170w
> 432-EME: FT-847, mgf-1402, 1x21-ele (18.6 dBi), 60w
> =========================================
>
>
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