[Elecraft] K3 key clicks

[Greg]

Or maybe the guest op not being familiar with the Yaezu.  Did the
owner of the station ever mention the problem?



On 12/13/12, Matthew Zilmer <mzilmer at magellangps.com> wrote:
> The K3 is the most click-free CW transmitter available on the market.
> Better take a look at the 5000's receiver!
>
> Matt Zilmer
> Consultant - Product Management Dept.
> Magellan Navigation / MiTAC Digital Corp.
> Tel: (909) 394-6052
> Cell: (909) 730-6552
> In status quo voluntas non sufficit
>
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of William Hein
> Sent: Thursday, December 13, 2012 11:24 AM
> To: elecraft at mailman.qth.net
> Cc: Larry Gerbaz; Jerry Fleck
> Subject: [Elecraft] K3 key clicks
>
> I am currently operating barefoot at my new-ish (moved here one year ago)
> QTH in Glade Park CO with a K3 and a Cushcraft vertical antenna.  (Much
> nicer antennas going up in the next few weeks and more power once I get 220V
> to the shack).
>
> I have a neighbor, Jerry K0DU, who lives about 4 miles away and is an active
> contester.  We can see each other's QTHs from our respective shacks across a
> high elevation Colorado plateau.  Needless to say we have no trouble hearing
> each other.
>
> I have noticed that I can get within 2-kHz of Jerry when he's operating CW
> with at full 1.5-kW output with no clicks or elevated tx noise.  I can see a
> giant signal on the P3 but can't hear a thing once I'm 2-kHz either side.
> This underscores how nice the K3 rx is.  I have a full set of accessory CW
> roofing filters.
>
> After the 10m test recently Jerry emailed me  "...(Jerry's guest op) came
> across you several times on CW... heard buckshot or key clicks out of the
> pass band of our receiver up & down the band"  This suprised since I had
> noted during the contest how close I could operate to Jerry.  And he was
> running his linear and I was operating barefoot.  Jerry has a FTdx5000 so I
> don't think poor selectivity or bad rx design is the issue.  I confirmed
> that Jerry's 5000 did not have the NB engaged during the 10m test.
>
> What can I do to check my K3 for transmitted key clicks and other unwanted
> emissions?  How to do to eliminate same once I confirm the problem?
> Frankly, I Jerry's transmissions don't bother me reciprocity didcates than
> my transmissions shouldn't bother him especially with an order-of-magnitude
> different to transmitted power.
>
> The Cushcraft vertical (an R8) sometimes has high SWR spikes.  Since its
> being decommissioned soon and I've been running low power I haven't bothered
> to trouble shoot it.  Could this be contributing to the clicks/"buckshot"?
>
> I'll run some tests with Jerry after I have a plan of attack.
>
> 73
> Bill
>
> -----
> William Hein, AA7XT
> (ex-AA4XT, NT1Y, AA6TT, KC6EDP)
>
> AMSAT Life Member
> ARRL Life Member
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>
> 1st W to OH0 QSO on 6m
> 1st North America to Asia QSO on 60m
> Founder of TopBand email reflector
>
> Web   www.AA7XT.com
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>
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