[1000mp] New Roofing Filter

[G.La Parola, IT9BLB]

wx5l at charter.net wrote:

> I have a question for those who have recently installed the new Inrad roofing filter.
>
> 1. Can you detect insertion loss? Was it necessary to adjust/compensate the IF gain in Menu 9? Did it affect the sensitivity in any way? I have presently the IF mod installed and feel it's a worthwhile improvement for signal to noise improvement but do you lose this in favor of better dynamic range?
>
> I have read the pdf file and understand what this filter is doing but is there a trade-off.
>
> 2. Is it worth $165.00?
>
> 73,
> Randy
> WX5L

My first real test was on 20m during the just finished CQWW RTTY contest: the band was
extremely crowded and my MP worked like it never did !
On CW-RTTY, I use the original 500Hz + INRAD 400Hz and a combo of INRAD 250Hz,
I can confirm that the roofing filter makes an appreciable upgrade.
I find the same big effect found when I upgraded my old Drake R4-C with the famous
GUF-1 and GUF-2 ... :-))

Jump over the wall !

Joe, IT9BLB/KF6FBC/9H3DC/IH9P

 http://www.ih9p.com/

 TIKIRRIKI CONTEST CLUB
 *** No moscato passito wine?
 *** No party!