[CQ-Contest] INRAD Roofing filter impressions after CQ WW CW contest

[Gary Sutcliffe]

At 10:02 AM 11/29/2004, 4x1ad wrote:
>I would appreciate any feedback from operators in CQ WW CW contest for the 
>INRAD roofing filter installed on FT-1000MP & Mark V.



I bought one at Dayton, and finally got around to putting it into my MP a 
couple of weeks ago.

I used it for a few hours in SS phone, and for extended periods in CQWW CW 
this last weekend.

This is one of those things were you don't really notice the improvement 
easily without having the proper test equipment to measure it.  Nearby 
strong signals that caused problems before won't cause problems now, but 
you won't know the strong signal is there in the first place if the filter 
is doing its job.

My subjective feeling is that I had much less trouble with adjacent strong 
signals than in the past, especially on the low bands. Published test data 
I have seen supports that.

My FT1000MP is full of INRAD filters. They make great stuff.   If I ever 
get another FT1000xx the roofing filter will be one of the first upgrades I 
get for it.

73 - Gary


Gary Sutcliffe  W9XT
Unified Microsystems
w9xt at unifiedmicro.com
www.unifiedmicro.com