Re: FT-5000 againts K3 ?

Posted by James Duffey on May 23, 2010; 4:02pm
URL: http://elecraft.85.s1.nabble.com/FT-5000-againts-K3-tp5088345p5091081.html

Dave - You wrote:

"AFAIK, all the testing is done with a single unit. Does anyone have an
idea as to what the normal unit-to-unit variation is? Are we talking
0.1dB, 1dB, 5dB?"

Variations of a few dB from one unit to another of the same radio are typical. For the higher performing radios, most operators will not be able to tell the difference.

There are exceptions, for a particularly pathological case look at the Third Order Dynamic Range Narrow Spaced (dB) for the two K2s that Robert Sherwood tested:

< http://www.sherweng.com/table.html >

For radios based on straight analog to digital converters (ADC), that is those that have no traditional mixer/LO/IF front end, such as the Perseus the third order dynamic range is not a good figure of merit, as the third order products do not manifest themselves until the ADC has essentially saturated.

Everyone should be happy that other manufacturers are striving for optimum receiver performance competitive with Elecraft, whether driven by the K3 or not. Competition is healthy for the market place and we all benefit. It is a lack of American competition in the 70s and 80s that allowed the Japanese imports to get a toehold here. For better and for worse.  - Duffey
--
KK6MC
James Duffey
Cedar Crest NM





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