Hi

I do have some info but am in a state of go-between
into my new radio shack and all is in boxes.

For additional info you may want to look under
"microwave RF "designs and companies that produce
microwave components.All the digital radio channels in
long haul microwave systems  use rings in their
antenna branching (similar to combining) .

>From memory there are two paths from the input-one
path has a low insertion loss and the other a high
insertion loss. there is usually an impedence matching
r / L / C circuit to match and the resistor is to
broaden the resonance( extremely deep null).
In the one path there is a cavity.My rings were made
of semi-rigid to minimise leakage-braid is too
unstable.

They were a challenge and due to the deep nulls
extreme temperature changes can affect the workings
severely.Thet are challenging to maintain 100 %.

Since due to the tower seperation I have resorted to
sperate antennas-X200-N and only one RX cavity and all
has been working well for years this way.

Rings do have up to 4 dB loss- design dependant.

Regards

Bradley Glen  ZS5WT


--- w4rfj <[EMAIL PROTECTED]> wrote:
> Hi I am looking for information on Hybrid Ring
> Duplexers...  I have 
> looked on the Web and in the ARRL Handbooks that I
> own and no Info...
> I am interested in learning / analyzing how they
> work Does anyone 
> have any info on How to build / or How a Hybrid Ring
> Duplexer works?
> 
> Thanks in advance!
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
>      [EMAIL PROTECTED]
> 
>  
> 


__________________________________
Do you Yahoo!?
Yahoo! Finance: Get your refund fast by filing online.
http://taxes.yahoo.com/filing.html




 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
     http://groups.yahoo.com/group/Repeater-Builder/

<*> To unsubscribe from this group, send an email to:
     [EMAIL PROTECTED]

<*> Your use of Yahoo! Groups is subject to:
     http://docs.yahoo.com/info/terms/
 


Reply via email to