Ira Franklin wrote:
>I know several of you fellows have already put roofing filters in your Omni 
>6's has anyone tried the roofer with out a  narrow filter in the 9 mz slot? 
>Would be interested in how it performed.
>Thanks  Ira  k4ymq
>  
>
I'm running the 600hz filter in my Omni VI without a filter in the NAR 
slot - works fine.  I don't see/hear the need for a filter in the NAR 
slot due to how well the INRAD roofing filter works. 
The only benefit I can imagine where you would benefit is if you had a 
very narrow filter in the NAR slot like the #753 400hz or #760 250hz 
filter but you're boxed in pretty well as far as the sidetone pitch you 
use - the roofing filter and your NAR filter all have to match or you'll 
hurt your performance.  The roofing filter by itself does an excellent job.
73 Jason N1SU
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