If you have access to plots but not the raw data, try using Data Thief
(www.datathief.org).
Tor N4OGW
On Sunday, November 15, 2020, 7:04:20 AM CST, Jim Brown
<k9yc@audiosystemsgroup.com> wrote:
That's a huge project you're asking for, Scott! I spent months on the
one that's published! OTOH, the spectrum plots from ARRL Labs certainly
provide the cues to which rigs have greater occupied spectrum. My work
simply took all the raw data and plotted it so that rigs could be more
precisely compared. So download the ARRL Lab reports and carefully study
the keying spectrum for each. Enlarge and print them, and carefully
measure bandwidth with a precision ruler with small calibrations, like
an architect's scale. That's what I did before I got ARRL's raw data in
electronic form.
73, Jim K9YC
On 11/14/2020 3:16 PM, Scott Wright wrote:
> Jim
>
> The examples you have in your slides are mainly out of production. Can you
> update them with the newer rigs? For example the Elecraft, Icom and Yaesu
> examples are no longer in production. Most have been replaced with newer
> stuff except the K3s and FT DX 5000 which still seems to be very popular.
>
> Let’s hope the K4d keeps those qualities. I am mainly interested in the Icom
> 7851/7610/7300 data personally.
>
> You and Rob Sherwood should do something for NCJ on “Desirable reforms for
> ham contest transmitters”.
>
> The ARRL efforts to reign in key clicks will be unenforceable but it is
> probably helpful to bring attention to the issue. I believe pressure must be
> placed on the manufactures.
>
>
> Sincerely,
>
> Scott Wright
>
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