[ICOM] Sherwood Engineering test numbers

[John Geiger]

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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