Hi skip .The repeater radios are maxon sm4450sc and the link is a tait t2010
The test I have tried in the past have been definitely point to the link
being the problem as when we turn the link off the repeater works to its
full range but with it on we get desence.
We used to have the link closer to the repeaters aprox 487mhz but we shifted
it to 517mhz to fix desense and we find we are still having problems.I think
the white noise could be the issue but I  tried a notch on the link cable
tuned to the  repeaters receive and that seem to cause more interference and
weaken the links Transmit range.I wondered about putting a BP cavity filter
inline with the link but since our link frequencies are 5.2mhz apart I feel
you can only tuned the filter for either TX or rx frequencies and not  both
Unless maybe you can install two in pararell ,one  tuned to TX and the other
rx .
 
 
  
Thank You,
Ian Wells,
Kerinvale Comaudio,
3A Murchison Street,Biloela.4715
Ph 0749922449 or 0409159932 or 0749922574
www.kerinvalecomaudio.com.au
 
-------Original Message-------
 
From: skipp025
Date: 6/28/2010 2:50:00 AM
To: [email protected]
Subject: [Repeater-Builder] Re: Coax shielding
 
  

> "kerincom " <kerin...@...> wrote:
> Hi guys .I am just wanted to confirm a question on 
> coax shielding .


 

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