[Elecraft] Data mode and filters

Sat May 9 07:21:04 EDT 2015

Hi Jim,

Thanks for the expansion here.  If you do see me on CW sometime, please
do shoot me a report!  It is difficult of late to get reports from
people that actually know what they are doing when they report things.
I tend to only work DX, which is probably why we have not worked CW yet.

I contest, but never even thought of intentionally widening my signal to
keep others out...  Sigh...  As I said, ham radio is not like it used to
be...
-- 
Thanks and 73's,
For equipment, and software setups and reviews see:
www.nk7z.net
for MixW support see;
http://groups.yahoo.com/neo/groups/mixw/info
for Dopplergram information see:
http://groups.yahoo.com/neo/groups/dopplergram/info
for MM-SSTV see:
http://groups.yahoo.com/neo/groups/MM-SSTV/info

On Fri, 2015-05-08 at 23:23 -0700, jim wrote:
> .
> 
> My "testing" was using CW mode only.
> 
> I do include a snapshot from the P3 pan-adapter when I send the person a
> mail.
> 
> In all cases, the screenshot had signals that are stronger than the one I
> question and did not show phase and Key Klick issues.  This is EXTREMELY
> easy to find and point out with stations that run the CWT during the week.
> There you can find a good number of signals that are over 1.4 kHz in width
> and the jitter on the sidebands jumps out at you.
> 
> The strength of the signals are no greater than -65 dBm on the pan adapter.
> 
> What is interesting is that the stations in question had a Yaesu or Icom
> listed or shown on their QRZ page.
> 
> Take a look at the upcoming CWT test this week.  The contest runs from 19:00
> to 20;00 Zulu on May 13 and 03:00 to 04:00 Zulu on May 14.  You will see the
> stations I am talking about, clear as day on your P3.
> 
> The CW part of Sweepstakes is also unreal.  There are stations that
> deliberately run the rise times at < 5 mSec to make sure they have elbow
> room.  People have used old Drake transmitters with modified waveform
> shaping values (easy to find and change values) to make sure they are wide
> (Key Klicks), and then use a K3 as their receiver.
> 
> BTW, David, I have not heard you on CW, and have no idea of your signal
> quality.
> 
> Jim
> W6AIM
> 
> -----Original Message-----
> From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of David
> Cole
> Sent: Friday, May 8, 2015 7:13 PM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Data mode and filters
> 
> 
> Hi Jim,
> 
> Honestly, my first question to you would be how is YOUR radio setup, and how
> strong was my signal at your location? Are you overloading?  Were you
> running with the Attenuator on, did you have AGC on, etc.
> 
> I have heard many, many people accuse another ham of being broad, when they
> were just strong, not wide.
> 
> When I send out a report to another ham, about wide signals, I include a
> snap shot from the P3, with a good signal at the same strength as the
> offending signal.  That way the person knows that his/her signal is
> different from a signal that is the same strength, on the same screen, at
> the same time.  
> 
> That sort of ends all questions along the lines of the one above I listed.
> 
> I am a bit surprised some folks actually responded that they did not care...
> Ham radio has changed a lot over the past 40 years...
> 
> --
> Thanks and 73's,
> For equipment, and software setups and reviews see:
> www.nk7z.net
> for MixW support see;
> http://groups.yahoo.com/neo/groups/mixw/info
> for Dopplergram information see:
> http://groups.yahoo.com/neo/groups/dopplergram/info
> for MM-SSTV see:
> http://groups.yahoo.com/neo/groups/MM-SSTV/info
> 
> 
> On Fri, 2015-05-08 at 15:09 -0700, jim wrote:
> > 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.
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft at mailman.qth.net
> > 
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> Message
> > delivered to jbollit at outlook.com
> > 
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft at mailman.qth.net
> > 
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to dave at nk7z.net
> 
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to jbollit at outlook.com
> 