[Icom] Rig advice

Siu Johnny [email protected]
Sat, 22 Feb 2003 07:41:02 +0800


Just to further supplement my previous message.  My IC756 original is
equipped with 9Mhz FL223 and 455 Khz FL222 filters.  The 455Khz IF filter
FL96 has also been upgraded with INRAD 109 (i.e. FL44A equivalent).

73

Johnny Siu VR2XMC
----- Original Message -----
From: "Igor Sokolov" <[email protected]>
To: <[email protected]>
Sent: Friday, February 21, 2003 11:54 PM
Subject: Re: [Icom] Rig advice


> This is my personal opinion. 90% of my activity is contesting. I have 765
> and use it from home. Club station got a pair of original 756 and I use
them
> when at the club. I would not trade 765 for 756 because IMHO 765 with some
> mods being once one of the flagships of Icom is much better receiver then
> 756 and much more suitable for contests. ProII must be one good radio
(never
> used one, only worked with PRO) but based on my experience with DSP in
> contests,that includes use of TS870, FT1000MP, 756PRO (especially 160 and
80
> meters) I am pretty convinsed that good  analog  filters are better then
> today's DSP filtering technology. It may change in the future (although I
am
> not 100% sure) but it did not happen yet. Again what I said is only
> applicable to contesting and DXing may be somewhat different. But
contesting
> is what I do.
>
>
> 73, Igor UA9CDC
>
>
>
> > Hi Larry,
> >
> > Just my personal comments.  IC756 (original) has already been better
than
> > IC-765.  Therefore, applying the same logic, IC756 proII should be
better.
> > Please visit Adam AB4OJ's web page at www.qsl.net/icom.  You would get
an
> > answer.
> >
> > While external AF DSP unit is good (I use a Clear Speech Unit with my
> > IC756), it cannot be compared with IF DSP where you have a whole range
IF
> > filter selection.  The IF DSP filter of IC756 pro II is within AGC loop
so
> > that pumping effect by surrounding big guns has been much reduced.  With
> > advancement of electronic technology, the drawbacks previously facing IF
> DSP
> > filters have been gradually overcome.
> >
> > It would be a big jump in performance if you replace your IC765 with
IC756
> > proII.  Clearly, I do not say that your IC765 is of no good but the
IC756
> > family is better.
> >
> > 73
> >
> > Johnny Siu VR2XMC