Re: [TenTec] For Sale : Orion #762 600Hz Roofing Filter

[K4IA@aol.com]

Check out _http://users.vnet.net/btippett/inrad_.htm_ 
(http://users.vnet.net/btippett/inrad_.htm)    Bob Sherwood had an article 
about it too but I can't 
find it right now. 
 
Lower insertion loss than your 500hz and when your 500hz kicks in there is  
additional amplification that degrades the IMD. 
 
Using the low insertion loss INRAD in the 1Khz position gives you the best  
of both worlds.  Narrow roof, low insertion loss and no degradation in the  IMD 
because the extra pre amp doesn't come on 
 
I noticed a big difference and sold my Orion 500hz filter after I installed  
the INRAD.
 
K4ia  "Buck"
Fredericksburg, Virginia USA