[Elecraft] Sherwood on ARRL Testing Methodology

[Bill W5WVO]

Bill Tippett wrote:

> (keyclicks and phase noise).  They're getting better but
> IMHO they need to tone down the fluffiness in the QST
> articles.

I agree. I find the articles themselves to be mostly non-critical rah-rah 
stuff that the Marketing Department at the radio company could just as well 
have written.

> BTW Sherwood measured the SDR-5000's IMDDR3 at
> 5 kHz as 96 dB.  It's going to be a real horse race to see if
> the K3 may top that but if not it should be very close.

I don't know what the test configuration of the SDR-5000 was -- I don't think 
it uses any discrete hardware roofing filters, does it? -- but Elecraft is 
already claiming that the IMDDR3 at 5 kHz spacing (400 Hz CW roofing filter) 
will be greater than 100 dB. (See K3 Specs page) I don't believe Eric would 
have let that spec be on a public web page unless he was pretty certain it 
would still be true when the final numbers come out.  :-)

Bill / W5WVO