[Elecraft] Data mode and filters
jim
jbollit at outlook.com
Fri May 8 18:09:15 EDT 2015
I also agree with K4TV.
I did a little experiment concerning the "poor" signals that I have heard on
the bands. I only looked at CW as that is my mode of choice.
When I "saw" a poor signal, I looked them up on QRZ.com and advised them via
e-mail, of their signal quality, and attached the two articles authored by
K6XX and K9YC that show the various
popular radios currently on the market and their corresponding transmitted
spectrum. I also took a "snapshot" of the P3 display, showing their signal
which then could be to the others on the pan-adaptor.
My efforts to accomplish this took place during the CWT tests. This mini
contest lent itself to showing a significant number of different signals at
the same time.
I sent emails to nine different people this week.
Three (3) people did not responsed to my email
Three (3) people came back to me stating they did not care at all about
their transmitted sitnal
Two (2) people were concerned/interested about their signal and was going to
further research the matter for the model number radio they had.
One (1)person was going to send his radio back to the mfg'er for an
update/mod and to change the mfg'er out out of box setting to 10
milliseconds.
Difficult to draw any conclusions from this small sample size, but people
with a wider xmit signal do have more **elnoww room**
Jim
W6AIM
.
-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of James
Wilson
Sent: Friday, May 8, 2015 7:56 AM
To: Elecraft
Subject: [Elecraft] Data mode and filters
I have to agree with Joe, K4TV in that use of super wide audio and
over-driven amplifiers are in poor taste. Look at your P3, Some have
considerable "other" sideband and run 10 to 12 KHz wide on congested bands.
73,
Jim W4RKS.
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