[R-390] Synthesizer Phase Noise

[Lester Veenstra]

Now that’s a rotatable array !!

But it is interesting that the commercial market  with it's arrays of
dipoles has not picked op on the SteppIR design for variable dipole lengths.


 
Lester B Veenstra  MØYCM K1YCM
lester at veenstras.com
m0ycm at veenstras.com
k1ycm at veenstras.com
 
 
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-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Sheldon Daitch
Sent: Wednesday, August 26, 2009 2:39 PM
To: lester at veenstras.com
Cc: r-390 at mailman.qth.net; 'Tisha Hayes'
Subject: Re: [R-390] Synthesizer Phase Noise

I always thought the virtue of an RLPA is they basically worked
equally bad on all frequencies.

These don't rotate, but they will slew, if you buy the
right options:

http://www.tcibr.com/?PageID=202

If you need to rotate it, try this:

http://www.thomsongrassvalley.com/docs/DataSheets/tbm/radio_transmission/TRB
-SWAnt-R1.0.pdf

Sheldon

Lester Veenstra wrote:
> Actually, the gain of those rotating LPA's is rotten. Now a nice sterba
> curtain or rhombic is another matter.
>
>  
>   
>
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