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[TenTec] CW Contests and IP3

To: <tentec@contesting.com>
Subject: [TenTec] CW Contests and IP3
From: w1rfi@arrl.org (Hare,Ed, W1RFI)
Date: Fri Mar 7 11:49:17 2003
If memory serves, the Argo V IP3 was improved at greater spacings than the 20 
kHz standard used in
the ARRL Lab tests.  The Lab actually tests dynamic range at a number of 
test-tone spacings 
and puts the results in the expanded test reports. Mike Tracy is, btw, working 
on the report as
we speak and I will post the URL as soon as it is up.

The use of 20 kHz spacing for the test tones could be another long thread in 
and of itself. :-)

73, 
Ed Hare, W1RFI
ARRL Lab
225 Main St
Newington, CT 06111
Tel: 860-594-0318
Internet: w1rfi@arrl.org
Web: http://www.arrl.org/tis



> -----Original Message-----
> From: John Rippey [mailto:w3uls@3n.net]
> Sent: Thursday, March 06, 2003 10:58 PM
> To: tentec@contesting.com
> Subject: [TenTec] CW Contests and IP3
> 
> 
> The ARRL lab's IP3 data for the Argonaut V and the Yaesu 
> FT-920 show the 
> latter's IP3 superior by a wide margin. Yet listening on 
> several CW contest 
> weekends yielded the finding that the Argonaut receiver's 
> front end did not 
> collapse under the multiple strong signal environment, while 
> the FT-920's 
> did. This is not to say that the Argo was perfect, but it was 
> useable even 
> in the face of the racket. I must have been hallucinating; 
> after all, you 
> can't argue with numbers.
> 
> 73,
> John, W3ULS
> 
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