[Yaesu] roofing filters

[Cecil Acuff]

I recently sold an Icom 756 Pro II with the all DSP based IF/Detector 
system.....much like the new 7800.  It didn't have the roofing filter in it. 
There is no denying the benefits of the roofing filter concept but I'm not 
sold on the all DSP based stuff yet.  Having all those bandwidths available 
are nice but I found myself typically using pretty much the same ones each 
time, that provided a balance between audio quality and rejection.  As for 
all the other bells and whistles they just got in the way so I went back to 
something very simple with all the buttons I most commonly use....a good ole 
FT-1000D.  I did own the two together long enough to do on the air 
comparisons of the receivers using a military HF receiver multicoupler and 
the FT-1000 stood it ground.  There was nothing I could tune on the Icom 
that I couldn't hear on the FT-1000D no matter how weak or strong.  Using 
the timewave audio DSP in the Yaesu speaker worked almost as well as the 
Icom's IF based DSP processing for noise and every bit as good for hets...

Haven't missed the Icom at all!  Then picked up a mint MP with an 
intermittent DSP bug and have run it with the 1000D and find the same 
thing....the two are very close and the MP is loaded with Inrad IF filters. 
When working DX I find myself using the D...on CW I like the MP's memory 
keyer for contesting and DXing.  I will probably end up buying a good memory 
keyer and putting it on the D and selling the MP at some point....after I 
get the DSP bugged out...

Someone's question about an all digital radio....maybe someday once they 
fully mature but today I more prefer a conventional radio.  I also don't 
care much for operating my radio via computer control....I guess I just like 
twisting the knobs....

I have a bunch of tube stuff to for the guy saying get a Valve radio....

The R-390A series with it's tracking front end is great but not much of a 
SSB rig without a bunch of massaging....

As a matter of fact on SWBC I have a Hammarlund SP-600 modified by the late 
John Leary that blows everything in the shack away....they hear carrier it 
demods audio.....pretty amazing.

Cecil....


----- Original Message ----- 
From: "Gregg Seidl" <K9KL at centurytel.net>
To: <Yaesu at contesting.com>
Sent: Thursday, July 20, 2006 2:58 PM
Subject: [Yaesu] roofing filters


> Until you have used one of those 10.6K -12.6 K radios you have no idea 
> what you are missing.I have one of the other brands of 10K radios only 
> because of the so called troubles of the Yaesus.That radio is by far the 
> best thing I have ever used including the 1000D.Its filtering is to die 
> for,I think when the 9000D is done growing it will be the same way.You can 
> say it doesn't make a difference all you want but until you use one during 
> a contest and just tuning around they can't be beat!  Gregg  K9KL
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