Posted by
Don Wilhelm-4 on
May 22, 2010; 6:04pm
URL: http://elecraft.85.s1.nabble.com/FT-5000-againts-K3-tp5088345p5088731.html
While the RadCom reports are trustworthy, I have not seen the complete
test results nor the procedures documented in a manner similar to the
ARRL test reports and procedures. I do see and hear Peter Hart's
ranking (the K3 is 3rd for 2 kHz IMD at 500 Hz BW), but how does it rank
for the other parameters - there is more to receiver performance than
just 2 kHz IMD. What is most important to Peter Hart may not be most
important to me - there are trade-offs with any piece of equipment, and
any chosen parameter may be improved at the expense of other parameters.
73,
Don W3FPR
Bill W4ZV wrote:
> Radcom's tests, under Peter Hart G3SJX, are just as trustworthy as ARRL and
> Sherwood, and in fact have more continuity (in longevity of personnel,
> equipment and procedure) than ARRL and maybe a bit more integrity than
> Sherwood. I say the latter because Rob has had the K3 listed #1 even though
> both the Flex 5000 and Perseus exceed it at 500 Hz BW. The only reason the
> K3 is ranked #1 is that it uses a narrower bandwidth (200 Hz) than the other
> two rigs to achieve the #1 position. Rob has this clearly footnoted but it
> still doesn't seem right to me to list the K3 at the top based on footnotes.
>
> With equal 500 Hz BWs, the 2 kHz IMD results are:
>
> Perseus - 99 dB
> Flex 5k - 96 dB
> K3 - 95 dB
>
>
http://www.sherweng.com/table.html>
> Someone may forward this to Rob which will be no surprise to him since I've
> told him this directly. Frankly I doubt many would notice the difference
> between 95, 96, 99 or even 101 (with 200 Hz) so I don't understand why not
> rank rigs at identical bandwidths (500 Hz).
>
> 73, Bill
>
>
>
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