Re: Elecraft Digest, Vol 87, Issue 46

[William Q Meeker]

they look good.

At 11:00 AM 7/27/2011, you wrote:

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>Today's Topics:
>
>    1. Re: A Different Look :-) (drewko)
>    2. Re: K4 (Mike)
>    3. Test (Dennis W0JX)
>    4. Re: ATU SWR LED's Dead (Don Wilhelm)
>    5. Re: K1/KX1 connection with small amplifiers...ideas? (Don Wilhelm)
>    6. Re: K1/KX1 connection with small amplifiers...ideas?
>       (Paul Christensen)
>    7. Re: 100 and 50 hz DSP filtering (Lu Romero)
>    8. KPA-500 SERIAL NO. 251 (K9ZTV)
>    9. Re: KPA-500 SERIAL NO. 251 (K9ZTV)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Wed, 27 Jul 2011 08:20:07 -0400
>From: drewko <[hidden email]>
>Subject: Re: [Elecraft] A Different Look :-)
>To: [hidden email]
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset=us-ascii
>
>For color scheme I think the K2 and the  Drake rigs can't be beat.
>
>73,
>Drew
>AF2Z
>
>Sent from my ancient Dell PC (for those who keep track of such
>things).
>______________________________________________________________
>
>
>On Wed, 27 Jul 2011 16:34:26 +1000, Jack VK4JRC wrote:
>
> >Ahem......just wonder how nice any of the Elecraft radios would
> look, painted in Military green?Just imagine the KX-3 in a super
> spy can't see me, camo colour :-)
> >I would go 'green'.....at the drop of a hat!
> >
> >73,  Jack VK4JRC
> >
> >Sent from my iPad
> >______________________________________________________________
>
>
>
>------------------------------
>
>Message: 2
>Date: Wed, 27 Jul 2011 08:25:20 -0400
>From: Mike <[hidden email]>
>Subject: Re: [Elecraft] K4
>To: [hidden email]
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Is it legal to ship a tethered human across state lines? What if I
>didn't like the
>one I got?
>
>73, Mike NF4l
>
>On 7/27/2011 12:53 AM, george fritkin wrote:
> > The new radio should not be a Swiss army of the frequency
> spectrum, but a "tour de force" of Elecraft.  It should have an on
> board computer with a tethered human interface.  It should have a
> generous sized display allowing the user to  control the radio's
> function with a terse set of knobs or the human interface with the
> screen sharing radio functions and a spectrum analyzer.
> > What I have seen here in  the way of suggestions is just
> packaging more functions rather revolutionary radio changes.
> > Radios today should be treated as a computing device  whose
> output happens to be an RF signal.  There have be some attempts at
> what I suggesting.  However, these attempts were just too
> pioneering.  As we say in  electronics, pioneers are those that get
> shot in the back.
> >   But, as an outsider looking in, Elecraft seems to have in hand
> the ability to build a truly revolutionary radio.  And, if you guys
> at Elecraft do this, sign me up for S/N 1.  By the way, I think the
> new radio, the KX-3, is the trial balloon.
> > Love my two K3s
> > George, W6GF
> >
> >
>
>
>
>
>------------------------------
>
>Message: 3
>Date: Wed, 27 Jul 2011 05:52:03 -0700 (PDT)
>From: Dennis W0JX <[hidden email]>
>Subject: [Elecraft] Test
>To: [hidden email]
>Message-ID:
>         <[hidden email]>
>Content-Type: text/plain; charset=us-ascii
>
>Please excuse bandwidth!
>
>------------------------------
>
>Message: 4
>Date: Wed, 27 Jul 2011 09:07:08 -0400
>From: Don Wilhelm <[hidden email]>
>Subject: Re: [Elecraft] ATU SWR LED's Dead
>To: Ron Biron <[hidden email]>
>Cc: [hidden email]
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Ron,
>
>That would be the result if diodes D1 and/or D2 in the KAT100 were
>damaged.  They are easy to replace.  If that does not correct things,
>then the KAT100 firmware IC may have a damaged input.
>
>The diodes are properly 1N5711s, but 1N4148s will work if you are
>willing to sacrifice a bit of "flatness" with respect to frequency.
>Those diodes can be damaged by static coming in on the antenna - not
>only lightning, but wind, rain or snow can generate a high static charge
>on some antennas.  The safest thing to do is switch the input to a dummy
>load when not in use.
>
>73,
>Don W3FPR
>
>
>On 7/27/2011 4:30 AM, Ron Biron wrote:
> > I'm a new K2 user, but not the builder of this rig.  It seemed to perform
> > perfectly for one day, then the ATU's SWR LED's quit while tuning.  I get a
> > 1:1 readout in the K2's LCD, but unlike previous tuning, the ATU's relay's
> > go through the matching process, as if I had changed band or frequency.
> >
> > Any thoughts will be appreciated.... 73 Ron
> > ______________________________________________________________
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> >
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>
>
>------------------------------
>
>Message: 5
>Date: Wed, 27 Jul 2011 09:28:34 -0400
>From: Don Wilhelm <[hidden email]>
>Subject: Re: [Elecraft] K1/KX1 connection with small
>         amplifiers...ideas?
>To: VK7JB <[hidden email]>
>Cc: [hidden email]
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>John,
>
>You can use the amp keying circuit described for the K2 on the Elecraft
>website http://www.elecraft.com/Apps/Amp_keying_ckt.htm.  With the K1,
>you would use the 6R signal line in the K1 to drive it.
>
>If your amp relay voltage is higher (or the current required is higher)
>than can be handled by a 2N2222, take a look at the circuit used by Tom
>Hammond at http://www.n0ss.net/k2_t-r_rly_drvr.pdf.  Unfortunately, Tom
>cannot supply kits at this time, but it is not difficult to construct
>this circuit on perfboard.
>
>73,
>Don W3FPR
>
>On 7/26/2011 10:20 PM, VK7JB wrote:
> > Hi All,
> >
> > I have a K1 and also a cute, but rugged, little Tokyo HP-45b amp,
> which puts
> > out about 45W and I take it camping.  I've been thinking of
> pairing the two.
> > The THP amp doesn't have RF sensing for switching.  Can anyone point me in
> > the direction of a simple way to key the amp with a K1 /
> KX1?  Are there amp
> > keying buffer circuits you can make up and use with the K1/KX1?
> >
> > Perhaps someone out there has done this successfully already.  I can't find
> > much in the archives, so perhaps others have worked out that it's not worth
> > the fuss?! :)
> >
> > Thanks!
> >
>
>
>------------------------------
>
>Message: 6
>Date: Wed, 27 Jul 2011 09:41:25 -0400
>From: "Paul Christensen" <[hidden email]>
>Subject: Re: [Elecraft] K1/KX1 connection with small
>         amplifiers...ideas?
>To: <[hidden email]>
>Message-ID: <805D0BC4D2A343949FC6AF42D3A934AB@DBTOA000>
>Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>         reply-type=original
>
>Some simple, inexpensive and high-performance kits similar to Tom's design:
>
>http://wb9kzy.com/keyall.htm
>
>http://tinyurl.com/4x932a9
>
>Paul, W9AC
>
>
>----- Original Message -----
>From: "Don Wilhelm" <[hidden email]>
>To: "VK7JB" <[hidden email]>
>Cc: <[hidden email]>
>Sent: Wednesday, July 27, 2011 9:28 AM
>Subject: Re: [Elecraft] K1/KX1 connection with small amplifiers...ideas?
>
>
> > John,
> >
> > You can use the amp keying circuit described for the K2 on the Elecraft
> > website http://www.elecraft.com/Apps/Amp_keying_ckt.htm.  With the K1,
> > you would use the 6R signal line in the K1 to drive it.
> >
> > If your amp relay voltage is higher (or the current required is higher)
> > than can be handled by a 2N2222, take a look at the circuit used by Tom
> > Hammond at http://www.n0ss.net/k2_t-r_rly_drvr.pdf.  Unfortunately, Tom
> > cannot supply kits at this time, but it is not difficult to construct
> > this circuit on perfboard.
> >
> > 73,
> > Don W3FPR
> >
> > On 7/26/2011 10:20 PM, VK7JB wrote:
> >> Hi All,
> >>
> >> I have a K1 and also a cute, but rugged, little Tokyo HP-45b amp, which
> >> puts
> >> out about 45W and I take it camping.  I've been thinking of pairing the
> >> two.
> >> The THP amp doesn't have RF sensing for switching.  Can anyone point me
> >> in
> >> the direction of a simple way to key the amp with a K1 / KX1?  Are there
> >> amp
> >> keying buffer circuits you can make up and use with the K1/KX1?
> >>
> >> Perhaps someone out there has done this successfully already.  I can't
> >> find
> >> much in the archives, so perhaps others have worked out that it's not
> >> worth
> >> the fuss?! :)
> >>
> >> Thanks!
> >>
> > ______________________________________________________________
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:[hidden email]
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
>
>
>
>------------------------------
>
>Message: 7
>Date: Wed, 27 Jul 2011 09:49:50 -0400
>From: "Lu Romero" <[hidden email]>
>Subject: Re: [Elecraft] 100 and 50 hz DSP filtering
>To: [hidden email]
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset="iso-8859-1"
>
>This is why I monitor this reflector.  I did not know that
>the filter was not cascaded; I assumed it was!
>
>I have also experienced this "issue" as I do equalize on
>receive... Now I know the reason why its not an "issue". I
>will give it a try this evening and see if it solves the
>"problem"
>
>How did I miss this in the manual's "Theory of Operation"
>section? :)
>
>-lu-W4LT-
>K3 # 3192
>------------------------
>
>Message: 12
>Date: Tue, 26 Jul 2011 15:10:07 -0700
>From: "lyle johnson" <[hidden email]>
>Subject: Re: [Elecraft] 100 and 50 hz DSP filtering
>To: "Tommy Alderman" <[hidden email]>,
>     <[hidden email]>
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset="ISO-8859-1";
>format="flowed"
>
>You are probably using Rx EQ and have your preferred
>sidetone pitch peaked to something more than 0 dB.  RxEQ
>is not available at these two narrow bandwidths.
>
>Note:  It seems that many people believe that the Rx EQ is
>an *additional* filter cascaded with the normal DSP
>filter.  It is not.
>
>In general, if you want to apply RxEQ shaping in CW mode,
>I recommend that you set your preferred sidetone pitch to
>0 dB and use cuts on either side, or for whatever shaping
>you prefer, and not use any peaking above 0 dB.  That will
>avoid this problem.
>
>73,
>
>Lyle KK7P
>
>
>
>
>------------------------------
>
>Message: 8
>Date: Wed, 27 Jul 2011 10:32:42 -0500
>From: K9ZTV <[hidden email]>
>Subject: [Elecraft] KPA-500 SERIAL NO. 251
>To: Elecraft <[hidden email]>
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Ordered at Dayton, first one to the booth, first order taken.
>
>Just arrived, 10:25 a.m., July 27th.
>
>73,
>
>Kent  K9ZTV
>
>
>
>-----
>No virus found in this message.
>Checked by AVG - www.avg.com
>Version: 10.0.1390 / Virus Database: 1518/3791 - Release Date: 07/27/11
>
>------------------------------
>
>Message: 9
>Date: Wed, 27 Jul 2011 10:59:01 -0500
>From: K9ZTV <[hidden email]>
>Subject: Re: [Elecraft] KPA-500 SERIAL NO. 251
>To: Paul Christensen <[hidden email]>, Elecraft
>         <[hidden email]>
>Message-ID: <[hidden email]>
>Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
>Faster than a 66 year old man had any business doing.
>
>And watching Eric get his electronic order-taker working was the
>amusement of the week.
>
>Kent
>
>
>
>On 7/27/2011 10:40 AM, Paul Christensen wrote:
> > How fast were you walking/running?  :-)
>
>
>
> >
> >
> > ----- Original Message ----- From: "K9ZTV" <[hidden email]>
> > To: "Elecraft" <[hidden email]>
> > Sent: Wednesday, July 27, 2011 11:32 AM
> > Subject: [Elecraft] KPA-500 SERIAL NO. 251
> >
> >
> >> Ordered at Dayton, first one to the booth, first order taken.
> >>
> >> Just arrived, 10:25 a.m., July 27th.
> >>
> >> 73,
> >>
> >> Kent  K9ZTV
> >>
> >
>
>
>
>-----
>No virus found in this message.
>Checked by AVG - www.avg.com
>Version: 10.0.1390 / Virus Database: 1518/3791 - Release Date: 07/27/11
>
>------------------------------
>
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>End of Elecraft Digest, Vol 87, Issue 46
>****************************************

William Q. Meeker
Department of Statistics
2109 Snedecor Hall
Iowa State University
Ames, Iowa 50011
Phone: [phone]
Fax: [phone]
Home Fax: [phone]
www.public.iastate.edu/~wqmeeker

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