[ICOM] Sherwood Engineering test numbers
John Luthy
jluthy at worldnet.att.net
Sun Oct 15 19:19:27 EDT 2006
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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