[1000mp] (no subject)

[1000mp@mailman.qth.net]

Barry, N1EU wrote:

"These figures were fuel for much discussion about a year ago, if my
memory is correct.  I've examined the swept curves for several of these
rigs from the ARRL expanded test reports and corresponded privately with
Mike Tracey at the ARRL labs and have concluded that this table of
figures, which has been widely circulated, is an inaccurate presentation
of the relative performance of these radios.  I urge interested parties
to examine the BDR/IMD curves themselves.  ARRL members can download the
reviews at http://www.arrl.org/members-only/prodrev/bymfg.html "
----------
I went to that URL and the only ARRL expanded test reports after January
2001 are for the IC-256PRO II, TS-2000 and FT817, none of which were
mentioned in the IMDDR and BDR test results I posted.

As a result of posts in early January 2001 by Tom Rauch, W8JI and Dean
Straw on the Topband Reflector, N6BV, on 11 January 2001 ARRL test lab
engineer Michael Tracy, KC1SX posted the following on the Topband
Reflector:
==========
I went through a number of swept test data and was surprised to find that
my generalization was not true in all cases.  Here is the 5-kHz data for
the rigs I checked:

(In alphabetical order...)

Rig                     BDR          IMD DR
Elecraft K2             126          88
ICOM IC-706 MkII G      86           74
ICOM IC-756             98           67
ICOM IC-756 Pro         104          80
ICOM IC-775DSP          104          77
Kenwood TS-570D         87           72
Ten-Tec Omni 6+         119          86
Yaesu FT-1000MP         111          83
Yaesu FT-1000MP Mark V  106          78
==========
You said that Michael Tracy, KC1SX said that the above table of figures
"is an inaccurate presentation of the relative performance of these
radios." 

If KC1SX decided to reject the figures in the above table (which he
posted!), why did he do so?

73, de Earl, K6SE

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