[ICOM] Sherwood Engineering test numbers

[Glen Rosenthal]

I am not sure a dB or two makes one radio better than another. There are 
always other factors to consider when making objective and subjective 
measurements/statements, and for what are you actually using the radio.

Glen


>From: John Geiger <johngeig at yahoo.com>
>Reply-To: ICOM Reflector <icom at mailman.qth.net>
>To: ICOM Reflector <icom at mailman.qth.net>
>Subject: Re: [ICOM] Sherwood Engineering test numbers
>Date: Sun, 15 Oct 2006 21:42:54 -0700 (PDT)
>
>Hi Tim,
>
>Yes, I have heard others say that also.  But that
>still doesn't get down to my original question-how did
>it score so well on the IMD DR Sherwood test??  Better
>than many radios considered contest radios.
>
>73s John W5TD
>
>--- Tim Duffy K3LR <k3lr at k3lr.com> wrote:
>
> > John:
> >
> > My 706 is a much better radio when using antennas
> > that are somewhat inefficient
> > such as mobile and portable antennas.
> > If I hook my 706 up to a beam or a full-size dipole,
> > the attenuators do a
> > wonderful job of protecting the front end and making
> > the radio usable.
> >
> > Remember that the IC706 series receiver was never
> > intended to compete along side
> > radios that cost far more and perform much better
> > with lots of strong signals on
> > the band.
> >
> > 73!
> > Tim K3LR
> >
> > John Luthy wrote:
> >
> > > John,
> > >
> > > First I am NOT any kind of expert,
> > >
> > > But I have noticed that my 706MkIIg is almost hard
> > to listen to,
> > > mostly because it hears everything, so I wonder if
> > it is fed a small
> > > signal in a lab it might look like a very good
> > reciver,
> > > So I wonder if I would be happier with my 706  if
> > I had a differnt
> > > filters in it.
> > >
> > > ----- Original Message -----
> > > From: "John Geiger" <johngeig at yahoo.com>
> > > To: <cq-contest at contesting.com>;
> > <yaesu at mailman.qth.net>;
> > > <icom at mailman.qth.net>; <yaesu at contesting.com>;
> > > <dx-list at yahoogroups.com>
> > > Sent: Sunday, October 15, 2006 1:58 PM
> > > Subject: [ICOM] Sherwood Engineering test numbers
> > >
> > > > How much stock does everyone place in the
> > Sherwood
> > > > Engineering receiver test numbers
> > (www.sherweng.com)?
> > > > While I admit that the 2khz spacing is a much
> > more
> > > > useful measurement than the 20khz the ARRL has
> > used
> > > > for a long time, and I believe that Rob Sherwood
> > knows
> > > > what he is talking about when he tests
> > receivers, I
> > > > have a hard time believing some of his numbers.
> > > >
> > > > For example, he measures the 2khz IMD DR for the
> > Icom
> > > > 706MKIIG at 74db. This places it right in line
> > with
> > > > the PROII and PROIII at 75db, and better than
> > the
> > > > 756PRO (71db), FT1000D (69db), FT1000mp MK V
> > (69db),
> > > > and the Icom 746 (70db).  Now I have owned many
> > of
> > > > these radios, and I did not find the 706MKIIG to
> > have
> > > > that good of a receiver, definitely not better
> > than
> > > > the 756PRO or the Yaesu FT1000 series.  It
> > overloaded
> > > > pretty bad under contest conditions.  What am I
> > > > missing in his measurements, that makes the
> > 706MKIIG
> > > > look so much better than these other radios?
> > > >
> > > > 73s John W5TD
> > > >
> > > >
> > __________________________________________________
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> > >
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> >
> >
> > ----
> > Your Moderator: Dick Flanagan K7VC,
> > icom-owner at mailman.qth.net
> > Icom Users Net: Sundays, 1700Z, 14.316 MHz
> > Icom FAQ: http://www.qsl.net/icom/
> >
>
>
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>----
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