[1000mp] Roofing Filters

[Mike Brown]

I'm sure there is a great benefit by using the Inrad roofing filter during a 
contest. However, to say it is a "must" is a bit too much. 1000 MP's have 
been used in contest for years without the Inrad filter. Yes, it's something 
to put on the list if you can afford it, but you'll also want to get at 
least 2 500khz filters if you do any cw contesting. The 1000 MP is great 
without the roofing filter, and probably "greater" with one. I intend on 
putting the roofing filter in mine, but right now have other priorities. And 
I will be in the contest without the roofing filter until I get a chance to 
get one. Label the roofing filter, as "nice" or an "improvement", but it is 
hardly a must if you already have your 500 or 400 hz crystal filters in.

The intent of this message was not to down play in any way the Inrad roofing 
filter. It's just that it is not a "must", or 1000 MP's would not have been 
sitting on the desk of  contesters for years.

Mike, K9MI
----- Original Message ----- 
From: "Jon Kovacs" <jkovacs at neo.rr.com>
To: <1000mp at mailman.qth.net>
Sent: Friday, December 24, 2004 16:52 PM
Subject: [1000mp] Roofing Filters


Guys...    Like most of you, I have had my Mark V for several months.   My 
contesting is mainly CQWW and ARRL DX contest, both modes.   Occasionally 
few other contest of interest.

My rig is stock, with no filters.  Several of my contest club friends have 
told me that the "roofing filter" is a must in this rig for contesting???? 
My previous rig of many years was the Icom 756 PRO with all the dsp goodies. 
I found the cw audio to be almost robotic in sound.   Was not totally 
pleasing, especially after hours of contesting.   But all in all, it was a 
great rig.

I see in the mailing list that many have the same question about the roofing 
filter as I do, and that is
"will it really make that much difference?"      If so, how much does it 
cost and where do I get it?    And most of all, is it idiot proof for 
installation??

Thanks to all

JON k8ly
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