Re: [Elecraft] Cruise lines

[riese-k3djc]

thank you k3djc


On Thu, 17 Oct 2019 06:54:17 -0700 "Eric Swartz - WA6HHQ, Elecraft"
 writes:
> Folks, this thread was closed yesterday and is drifting further OT. 
> Please end discussion or take it off list ifn the interest of 
> improving list SNR.
> 
> 73,
> 
> Eric
> Moderator, COO etc.
> elecraft.com
> _..._
> 
> > On Oct 17, 2019, at 4:35 AM, jeff griffin  wrote:
> > 
> > ?What I find interesting is their using the government supplied 
> scanning
> > equipment for free to remove any personnel alcohol, and increase 
> their
> > profit margin.75$ for a 7$ bottle of wine?! Along with the sub 
> standard
> > entertainment on board, bad food, etc. I avoid cruises like the 
> plague.
> __
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[Elecraft] Has anyone tried UBUNTU (Linux

[riese-k3djc]

when it was introduced i had a machine that would double boot
worked well, stable but not much written for it

Bob K3DJC




On Wed, 31 Jul 2019 22:49:03 -0400 Steve Boles  writes:
> Has anyone tried UBUNTU (Linux)...  73 - Steve (ARS: WB4SED)

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Re: [Elecraft] Silent power supply for a K3s

[riese-k3djc]

candy cookies,,,bottle of wine
Bob


On Mon, 10 Jun 2019 00:16:10 -0400 Bert  writes:
> How would a switched PS take out a radio?
> 
> Bert VE3NR
> 
> 
> 
> On 6/9/2019 11:40 PM, Jim - N4ST wrote:
> > I don't know how common it is, but eHam lists several failures of 
> the
> > MFJ-4230MV supply that took out the rig attached to it.
> > Looking at the reviews they are pretty much a 5 (love it) or a 0 
> (it smoked
> > my rig when it failed).
> >
> > 
> > 73,
> > Jim - N4ST
> >
> >
> > -Original Message-
> > From: elecraft-boun...@mailman.qth.net 
>  On
> > Behalf Of Richard Zalewski
> > Sent: Sunday, June 9, 2019 19:53
> > To: Leroy Buller 
> > Cc: Elecraft Reflector 
> > Subject: Re: [Elecraft] Silent power supply for a K3s
> >
> > I did two of the Samlex and returned them both.  The fan problem 
> drove me
> > crazy.  I replaced it with a MFJ-4230MV and love it.  Quiet cool 
> and good
> > metering.
> >
> > Richard
> > *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, 
> W0MQU,
> > J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV
> >
> >
> > *Be joyful in hope, patient in affliction, faithful in prayer*
> >
> > __
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Re: [Elecraft] K4

[riese-k3djc]

list overload ??  

Bob K3DJC


On Thu, 16 May 2019 17:44:25 -0400 "Mark Volstad" 
writes:
> Here�s an actual photo of a K4, with what looks like Eric 
> controlling it via 
> a tablet :
> 
> https://twitter.com/elecraft/status/1129123592166432769
> 
> Mark  AI4BJ
> 
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Re: [Elecraft] 1500 W is a lot of power

[riese-k3djc]

that would be the ARRL  handbook,,, it was for me

Bob K3DJC


On Mon, 11 Mar 2019 20:07:54 + (UTC) Al Lorona
 writes:
> About two months ago I posted that amateur radio needs a tutorial, 
> 'What to expect when you get an amplifier'. As we see again and 
> again here even basic things like cables, connectors, grounding, and 
> house wiring that work fine at 100 W may be inadequate for 1500 W. 
> We need guidance to study our stations piece by piece to ensure 
> those pieces can handle these power levels without failing or 
> causing problems.
> 
> Al  W6LX
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Re: [Elecraft] OT: Astron linear PS regulation issues

[riese-k3djc]

thought this thread was over

Bob


On Tue, 26 Feb 2019 09:17:16 -0800 Ron Genovesi 
writes:
> Astron used to make s great supply. I have the same problem with 
> RS-35M less then a year old.
> Worked fine for 8 or 9 months then developed a bad hum or buzz. I 
> got tired of listening to it and pulled out a 35 Amp switching 
> supply. Haven�t had the time to pull it apart yet.
> 
>  Ron Genovesi
>N3ETA
> Sent from my iPhone
> 
> > On Feb 26, 2019, at 8:12 AM, Ignacy  wrote:
> > 
> > I wanted to love a 45A Astron but it was heavy and hummed. Sold 
> for peanuts
> > at a hamfest. 
> > 
> > Replaced by Jetstream JTPS32MAB. Probably same as MFJ-4230MV and 
> many
> > others. Small, quiet and cheap. Excellent regulation. If it dies, 
> it is $80. 
> > 
> > Ignacy, NO9E
> > 
> > 
> > 
> > --
> > Sent from: http://elecraft.365791.n2.nabble.com/
> > __
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Re: [Elecraft] KPA-1500 failed!

[riese-k3djc]

https://en.wikipedia.org/wiki/UHF_connector


On Sat, 16 Feb 2019 14:19:48 -0700 Wes  writes:
> Thousands of people; without issue.
> 
> Wes  N7WS
> 
> On 2/16/2019 1:55 PM, John Stengrevics wrote:
> > Who uses PL-259s?
> 
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Re: [Elecraft] Latest Elecraft NEWS

[riese-k3djc]

lots of info on U tube both alignment and operation

Bob K3DJC




Fri, 25 Jan 2019 16:52:51 -0500 Don Wilhelm 
writes:
> Jan,
> 
> The HW-16 was a crystal controlled transmitter only - no receive 
> capability.
> 
> Yes, there was a time when transceivers did not exist, and many 
> transmitters did not come with a VFO.  Many VFOs were external to 
> the 
> transmitter.
> 
> 73,
> Don W3FPR
> 
> On 1/25/2019 4:35 PM, Jan wrote:
> > Err, WAYNE  - - there is some question as to the contents of the 
> latest 
> > E-NEWS  
> > 
> > You write: armed with a dozen or so crusty FT-243 crystals for my 
> Heath 
> > HW-16  (Away from "where" was a poorly answered question, as 
> my 
> > Hallicrafters receiver dial wasn't exactly digital.)
> > 
> > QUESTION: Did your Heathkit HW-16 not have a tune-able receiver? 
> So, why 
> > the Hallicrafters mention ??
> > 
> > Then you continue with:   Fortunately I soon acquired an 
> outboard VFO, a 
> > life-changing addition to my station. Jealous friends doubled up 
> on 
> > their paper routes to pay for their own. Girls suddenly paid more 
> > attention to me.
> > 
> > QUESTION: What do an outboard VFO  and  ... /Girls suddenly paid 
> more 
> > attention to me/.   have to do with CW??
> > 
> > Nice write-up about CW Spotting
> > 
> > Cheers, Jan K1ND
> > 
> >  I've read many a paper in my role as a professor ;-)
> > 
> > __
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Re: [Elecraft] wire for random wire antenna using kx3

[riese-k3djc]

wow I am so embarised


Bob K3DJC
On Mon, 17 Dec 2018 17:25:10 -0500 Don Wilhelm 
writes:
> Does this mean that the electrons just will not stop?
> I brake my car when I need to stop it.
> I fix it when it it breaks.
> 
> If I pull on the wire enough, it certainly will break.
> 
> Proper spelling equals meaningful words - the English language is 
> complicated, but I thought we learned many of the spelling 
> differences 
> in grade 6 - here vs. hear, there vs. their, etc. even though they 
> sound 
> the same.
> It seems that texting and "OMG", "LOL" and such have devalued our 
> use of 
> good language and spelling skills.
> 
> 73,
> Don W3FPR
> 
> On 12/17/2018 4:24 PM, riese-k3...@juno.com wrote:
> > if you can find telephone house service wire,,, is copper clad 
> and
> > impossible to brake
> 

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Re: [Elecraft] wire for random wire antenna using kx3

[riese-k3djc]

if you can find telephone house service wire,,, is copper clad and
impossible to brake


Bob K3DJC


On Mon, 17 Dec 2018 09:04:04 -0900 Edward R Cole 
writes:
> I see the humour genes is alive and well in some hams!
> 
> But seriously plastic coated wire will work on HF antennas, though 
> you may see a slight lenthening of resonant length vs bare wire.
> 
> My 80m/40m fan inverted-V is made of coated copper-weld and I just 
> tuned it using my MFJ-269B antenna analyzer.  My 43 by 122-foot 
> inverted-L (630m band) is also the same copper-weld steel.  It uses 
> a 
> huge base coil that set the tap for resonance.  Z = 20 +0j  It warms 
> 
> worms well in the winter with 100w input and 4w EIRP.
> 
> Years ago I made a light-weight 80m dipole using 18ga speaker 
> wire.  Worked Anchorage over 500 mi with 100w from a checkpoint on 
> the Iditarod Sled Dog race.
> 
> 73, Ed - KL7UW
>http://www.kl7uw.com
> Dubus-NA Business mail:
>dubus...@gmail.com 
> 
> __
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Re: [Elecraft] wire for random wire antenna using kx3

[riese-k3djc]

if you can find telephone house service wire,,, is copper clad and
impossible to brake
makes good antenna,, not for use as feeders though

Bob K3DJC
> 
> 
> On Mon, 17 Dec 2018 09:04:04 -0900 Edward R Cole 
>  writes:
> > I see the humour genes is alive and well in some hams!
> > 
> > But seriously plastic coated wire will work on HF antennas, though 
> 
> > you may see a slight lenthening of resonant length vs bare wire.
> > 
> > My 80m/40m fan inverted-V is made of coated copper-weld and I just 
> 
> > tuned it using my MFJ-269B antenna analyzer.  My 43 by 122-foot 
> > inverted-L (630m band) is also the same copper-weld steel.  It 
> uses 
> > a 
> > huge base coil that set the tap for resonance.  Z = 20 +0j  It 
> warms 
> > 
> > worms well in the winter with 100w input and 4w EIRP.
> > 
> > Years ago I made a light-weight 80m dipole using 18ga speaker 
> > wire.  Worked Anchorage over 500 mi with 100w from a checkpoint on 
> 
> > the Iditarod Sled Dog race.
> > 
> > 73, Ed - KL7UW
> >http://www.kl7uw.com
> > Dubus-NA Business mail:
> >dubus...@gmail.com 
> > 
> > __
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> > 

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Re: [Elecraft] loss of RX sensitivity

[riese-k3djc]

https://www.eham.net/ehamforum/smf/index.php?topic=34680.0;wap2

Bob K3DJC



On Tue, 18 Sep 2018 16:53:01 -0400 (EDT) donov...@starpower.net writes:
> Hi Wes, 
> 
> 
> Thanks for forwarding the information about DG5MK's new FA-VA5 
> VNA. What is its current selling price? 
> 
> 
> If you use many BNC connectors, you'll notice a distinct difference 
> in 
> connector quality especially above 100 MHz. Avoid using BNC male 
> connectors with weak tension when you turn the bayonette 
> to engage the connector. If the bayonette turns too easily it 
> doesn't 
> maintain sufficient engagement force to keep the RF connections 
> in proper alignment. 
> 
> 
> 73 
> Frank 
> W3LPL 
> 
> 
> 
> 
> - Original Message -
> 
> From: "Wes Stewart"  
> To: elecraft@mailman.qth.net 
> Sent: Tuesday, September 18, 2018 5:51:45 PM 
> Subject: Re: [Elecraft] loss of RX sensitivity 
> 
> It's difficult to argue with Frank's experience and expertise. That 
> said, fools 
> rush in... 
> 
> I own some network analyzers, 1) an N2PK which I built with type N 
> connectors, 
> 2) a DG8SAQ VNWA-3, supplied with SMA connectors and 3) a RigExpert 
> AA-55 Zoom 
> with a SO239. Professionally, I've used analyzers with type N, 3.5mm 
> (beadless 
> SMA) and K connectors. With the exception of the AA-55, which only 
> goes to 55 
> MHz, all of these can be calibrated with "precision" calibration 
> kits that can 
> cost thousands of dollars. So far, Frank is right, not a BNC in the 
> bunch. 
> 
> But that has changed with the introduction of the DG5MK's FA-VA5, 
> one-port 
> vector analyzer. I am on the reserve list to buy one of these. The 
> thing to 
> note is that it is supplied with a BNC connector. There has been a 
> lot of 
> anguish, heartburn, etc about this on the VNWA Yahoo group but the 
> consensus is 
> that it will be fine and BNC calibration kit has been developed and 
> tested 
> without issue. https://www.youtube.com/watch?v=X8Z7veGV57o 
> 
> There are tens of thousands of BNCs on oscilloscopes and other 
> instruments and 
> I've seldom had an issue with them in 30+ years of lab work. For 
> quick 
> disconnect I also use short jumper cables with BNCs to break the 
> connections 
> between the hardline running to the tower and the cable entrance to 
> the shack 
> during lightning season. Admittedly, I'm only running 500 W. When I 
> can leave 
> them more permanently connected I revert to type N. 
> 
> Wes N7WS 
> 
> On 9/17/2018 5:04 PM, donov...@starpower.net wrote: 
> > If you have a vector network analyzer you'll discover that BNC 
> > connectors aren't all that great at VHF and above, l oss and 
> > impedance vary with connector axial alignment because the bayonnet 
> 
> > shell doesn't support aligh the connector body very well. Strain 
> relief 
> > is extremely important with BNC connectors. TNC connectors are 
> > far superior but not widely used. 
> > 
> > 
> > While professionally installed N connectors have superb RF 
> > characteristics, all too often they're improperly installed -- 
> even by 
> > professionals -- leading to damaged connectors if the male pin is 
> 
> > misaligned, or unreliable contact if the pin or socket depth is 
> just a 
> > few millimeters less than the manufacturers specification. I use 
> > only captive pin male N connectors, avoiding the most severe 
> > problems. I never use female N connectors on cables, the N sockets 
> 
> > are much too fragile. 
> > 
> > 
> > Its hard to beat high quality silver plated UHF connectors at HF 
> and 
> > 6 meters. But its important to use a tool to tighten them. That's 
> a 
> > small price to pay for a very reliable connector. 
> > 
> > 
> > 73 
> > Frank 
> > W3LPL 
> > 
> 
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Re: [Elecraft] Any advice, please?

[riese-k3djc]

WOW   K3DJC


On Sun, 1 Jul 2018 20:01:19 -0400 W2xj  writes:
> AFIK you are not the moderator so who cares what you wish. 
> 
> Sent from my iPad
> 
> > On Jul 1, 2018, at 7:51 PM, Don Wilhelm  
> wrote:
> > 
> > wunder,
> > 
> > How do you achieve "cleaner mic bias" - the mic bias is either 
> turned on or turned off.  The bias voltage comes from the K3.
> > 
> > Sorry, but for purposes of this email reflector, I do not wish to 
> read your entire links - often with links like that, there is no 
> content of value.  Put the relevant information in the text please.
> > 
> > 73,
> > Don W3FPR
>

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[Elecraft] Fw: Re: Mobile antenna breakthrough?

[riese-k3djc]

Subject: Re: [Elecraft] Mobile antenna breakthrough?

someone makes a rear window antenna  held with sticky pads to the
inside
of the glass,, worked well on 144

Bob K3DJC


On Sun, 20 Aug 2017 17:15:20 -0700 Phil Kane  writes:
> On 8/19/2017 9:26 PM, Doug Smith wrote:
> 
> > Yes, I was thinking along the same lines ? that copper 
> ?conductive tape? stuff.
> > 
> > It could be mounted to the outside of the carrier and would look 
> like stylish racing stripes!

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Re: [Elecraft] Counterpoises and Grounding

[riese-k3djc]

Yep   Bob K3DJC


On Sat, 10 Jun 2017 19:58:01 -0400 Michael Walker 
writes:
> Jim sort of nailed it.
> 
> :)
> 
> Mike va3mw
> 
> On Sat, Jun 10, 2017 at 4:59 PM, Fred Moore  wrote:
> 
> > Jim please accept my apologies, I didn't realize that since you 
> have
> > written extensively on the subject and actually had a website that 
> no
> > one else is allowed to comment without being chastised for 
> contributions.
> >
> > I have made myself a note to never reply to any conversation you 
> are
> > currently or could possibly become involved in , as all 
> authoritative
> > answers have already been provided on your web site.. and 
> absolutely
> > nothing else ever need be discussed.
> >
> > and again I must disagree with you.  when you state that
> >
> > "I think what you view as disagreement is my failure to write well 
> enough."
> >
> > you write extremely well, your condescending attitude comes 
> through very
> > clear, to everyone.
> >
> > Still wondering if I should remove all of my links on the 
> internet, as I
> > now realize I only need one.
> >
> > again, please accept my apologies.. I will make every attempt to 
> make
> > sure it never happens again.
> >
> > Fred Moore
> > email: f...@fmeco.com
> >wd8...@gmail.com
> > phone: 321-217-8699
> >
> > On 6/10/17 4:36 PM, Jim Brown wrote:
> > > On Sat,6/10/2017 12:39 PM, Fred Moore wrote:
> > >> Jim, lets stop talking about grounds totally when dealing with 
> RF, it's
> > >> just a confusion factor when it comes to discussions.
> > >
> > > That's what I said.
> > >
> > >>   unless we are
> > >> talking about as NEC and others when they correctly call it a 
> "Safety
> > >> Ground" or a "Grounding Conductor" and make sure that everyone
> > >> understands the difference..  most don't
> > >>
> > >> discussions should be about
> > >>
> > >> Safety Grounds, and grounding conductors 100% about 60 cycle 
> and DC
> > >> currents
> > >> common connection points  100% about how the above are 
> connected
> > >> counterpoises, radiating elements: deals 100% with RF and 
> antenna's
> > >>
> > >> etc.. properly understanding each one and you won't be confused 
> at all..
> > >
> > > I've written extensively on this topic, and both that writing 
> and
> > > several slide shows are on my website. k9yc.com/publish/htm
> > >
> > >>
> > >> I also disagree with your statement
> > >>
> > >> "First, and most important, for lightning protection and 
> electrical
> > >> safety."
> > >>
> > >> The first and most important item is an electrical Safety 
> Ground as it
> > >> protects people, they can't be replaced.
> > >> Second is lightening protection, as it typically protects 
> equipment.
> > >> equipment can be replaced
> > > Again, I refer you to my website.
> > >>
> > >> They don't carry the same weighting factor.. as very few 
> worldwide are
> > >> killed from lightning vs improper safety grounds.
> > > They are not different. Again, see my website. ALL grounds in a
> > > premise MUST be bonded together. PERIOD. Power entry, Telco 
> entry,
> > > CATV entry, antennas, shack, etc. These connections must NEVER 
> be
> > > separate or independent of each other.
> > >
> > >> most likely the only thing we don't agree on..  everything else 
> you seem
> > >> spot on...
> > >
> > > I think what you view as disagreement is my failure to write 
> well enough.
> > >
> > > 73, Jim K9YC
> > > __
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> >
> >
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Re: [Elecraft] OT: Ground rods and concrete

[riese-k3djc]

I sure hope so

Bob K3DJC

On Tue, 18 Apr 2017 18:10:48 -0400 "Terry Posey" 
writes:
> I expect that the Moderator will be ending this Off Topic soon.  
> 
> However:
> 
> One of my clients operates a large 90 tower (all self-supported) 
> microwave
> system here in Florida.  Florida is often regarded as the lightning 
> capital
> of the world.  I have helped my client with repairing damaged 
> (cracked)
> tower foundations.  Approximately $1 Million have been spent over 
> the last
> five years repairing concrete foundations that have embedded Ufer 
> rods in
> addition to an extensive external grounding system comprised of 
> radials and
> soil driven rods.  No repairs have been needed to any of the tower
> foundations that do not have Ufer embedded rods.
> 
> I have noticed that the damaged foundations cracks seem to appear 
> after 15
> years of service.  This could be evidence of long term repetitive 
> internal
> stresses - perhaps stresses resulting from steam expansion of the 
> concrete's
> internal moisture due to repetitive high energy lightning pulses to 
> the Ufer
> rod.  Of course, none of that thought is easily provable.
> 
> In the meantime, I do not include Ufer ground rods in any tower 
> foundation
> designs that I have professional responsibility.   
> 
> Terry K4RX
> 
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Re: [Elecraft] K3: past chirp report

[riese-k3djc]

for all you churp cops,,, tune around during th antique radio contest,,
no rig circuit
made after 1929 is used i use a hartley  osc which can cherp out of
the k3 pasband
if i pushit over 3 watts to the antenna,,, it begains to sound real good

Bob
 K3DJC

http://www.antiquewireless.org/awa-on-the-air.html




On Fri, 20 Jan 2017 06:10:19 -0700 (MST) Barry  writes:
> Does the radio automatically go into chirp mode if it detects 
> operation from
> Cuba?
> Barry W2UP
> 
> 
> 
> --
> View this message in context: 
>
http://elecraft.365791.n2.nabble.com/K3-past-chirp-report-tp7625892p76259
20.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] reflow solder K-pod power resistor

[riese-k3djc]

radio shack and others have acid free soldering flux
I find a toothpick tip holds enough to solder a component
touch the flow point and leave a bit of flux
cleans up well with a bit of alcohol
ect

Bob K3DJC



On Mon, 26 Dec 2016 19:03:19 -0500 "Bob Novas" 
writes:
> I successfully reflow soldered the surface mount 6.8 ohm resistor 
> across R82
> in my K3S today. It took me a while to get my courage up, but it 
> worked out
> well.
> 
>  
> 
> In the kind of reflow soldering I used, you melt some solder and 
> flux on the
> tip of a temperature controlled iron, and then, while holding the 
> SMD part
> to be soldered to the board in its final location, touch the iron 
> tip to the
> surface mount part one one side and then the other until it heats up 
> and
> solder flows (the "reflow").  It's hard to hold everything perfectly 
> still,
> but you can take a couple cracks at it until you get it right.
> 
>  
> 
> Bob - W3DK
> 
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[Elecraft] Fw: Re: Antenna Question

[riese-k3djc]

 
50 Ohm Magic, UHF Connectors 
TO: The Savvy Microwave Group 
FROM: Dick, K2RIW. 
RE: Coax Impedances, Losses, and the Maligning of UHF Connectors.
Coax Impedances, Losses, and the Maligning of UHF Connectors
by Dick Knadle, K2RIW, 31 May 2001. 
Coax Impedance -- Concerning the possible choices of the impedance of a
coaxial transmission line, a great reference is "Microwave Transmission
Design Data", by Theodore Moreno, Dover Publications, 1948. On pages 64
through 69 he discusses four criteria for choosing a particular
impedance. The four choices displayed in the graph on page 64
demonstrates how non-critical (broad ranged) many of these impedances
are. Most of the following addresses air dielectric coaxial transmission
lines. Here are some interesting "Moreno" facts: 
1. The maximum continuous power handling occurs at an impedance of 30
ohms.
2. The maximum breakdown voltage occurs at an impedance of 60 ohms.
3. The minimum insertion loss occurs at 77 ohms.
4. The maximum shorted line, resonant impedance occurs at 133 ohms.
5. Conductor losses (in dB's) are proportional to the square root of
frequency.
6. Dielectric loss (in dB) is linearly proportional to frequency. Hence,
at higher frequencies the dielectric losses become increasingly
important.
Cable Graphs -- We have all seen graphs of the insertion loss of our
favorite cables. They are usually displayed on Log-Log paper with the
horizontal axis being frequency, and the vertical axis being insertion
loss in dB per 100 feet (or 100 meters). The curious thing is that the
insertion loss graph appears as a sloping straight line, with some of the
cables displaying a slight upward hook at the highest recommended
frequency. Here is the explanation. 
On Log-Log paper an exponential function appears as a straight line where
the slope is proportional to the exponent value. A square root function
has a exponent of 1/2. A linear function has an exponent of 1. On most of
the cables, only the conductor losses (exponent of 1/2) are significant
throughout much of the recommended frequency range. Thus, most of that
range is displayed with a slope of 1/2. The hook at the end represents
the upper frequency range where the dielectric losses are beginning to
kick in. Here the line is beginning to slide into a slope of 1.5, due to
the combined effects of the 1/2 slope (conductor losses), plus the 1.0
slope (dielectric losses). 
Estimating Trick -- Knowing these facts allows you to make some
interesting mental approximations. Let's assume you know that your
favorite cable has an insertion loss of 1.0 dB per 100 feet at 144 MHz.
If your friend asks you what's the approximate loss at 432, here is what
you can do. Since you know that the cable is usable to at least 2 GHz,
you assume that conductor losses dominate throughout most of the 144 to
432 frequency region, and conductor loss is proportional to the square
root of frequency. 432 MHz versus 144 MHz is a 3:1 frequency ratio. The
square root of 3 is 1.73. Multiply the 144 MHz loss (1.0 dB) by the 1.73
factor, and you come up with a predicted approximation of 1.73 dB per 100
feet at 432 MHz. Because there will be a slight contribution due to
dielectric losses at this end of the cable's operating range you could
round your prediction up to 1.75 dB per 100 feet. Try this procedure on
the graphs of your favorite cables and you will be amazed how close the
approximation usually is. 
Cut-Off Frequency -- As you go beyond the manufacturer's upper
recommended frequency, the cable is capable of acting like a round piece
of wave guide (WG). The presence of the center conductor adds a little
capacitive loading that slightly lowers the WG cut-off frequency. Moreno
recommends using this approximate equation for predicting the cut-off
wavelength: 
Lambda = Pi * (a + b). 
a = outer radius of the center conductor. b = inner radius of the outer
conductor. Pi = 3.1416 ... 
In other words, the limiting wavelength is approximately equal to the
circumference at the arithmetic mean diameter. 
Coaxial WG -- Now, don't let this limitation always scare you into
submission. The cable isn't going to explode if you use it above the
recommended frequency, it just gets a little tricky up there. The first
wave guide (WG) mode to consider is the TE11 circular mode. That's the
one used by the 10 GHz guys who are using 3/4 inch water pipe as a poor
man's wave guide -- it turns out to be a very high quality [low loss]
wave guide. In the TE11 WG mode the maximum E-field lines flow from the 6
o'clock position to the 12 o'clock position in the pipe (vertical
polarization is assumed). If your coax cable doesn't have any significant
bends in it, and the inner conductor is centered, it won't launch any
E-field (WG mode) at right angles to the center conductor. Your next
question is "what's a significant bend?" The microwaver's are going to
have to study this, but, my gut feel is that a bend radius of greater
than 1 foot is OK. 
It is just a matter of time 

Re: [Elecraft] Antenna Question

[riese-k3djc]

a much better good connector that prople think

Bob K3DJC


On Tue, 11 Oct 2016 09:29:19 -0400 "Charlie T, K3ICH" 
writes:
> I'm curious as to exactly why a "junk" connector supposedly has so 
> much more
> loss than a "good" connector?
>
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[Elecraft] Fw: Re: how to optimize end-fed?

[riese-k3djc]

some years ago the arrl handbook had a Series Parallel Capacitor tuner
which matches my 1/2 wave 75 meter wire,,, makes, for me, a good 1000
mile antenna and when the band is open works DX as well
used to match the antenna at the end wit coils etc but the SPC has
replaced all that
with a 50 Ft run of coax to the antenna end
the tuner can be a problem to find the sweet spot but it doesnt change
once found


Bob


Subject: Re: [Elecraft] how to optimize end-fed?
>

Holger,

There are many answers to your questions.  You will have to get more 
specific about the wire lengths and the band(s) of operation for 
specific answers.

If you want an easy antenna that will work for 40 thru 10 meters with no 
feedline, download the KXAT1 manual from Elecraft and look at page 10.  
It is just two wires and a BNC to binding post adapter, you can't get 
much simpler than that.

If you just want to experiment with antennas, feedlines and matching 
networks, do it with some education - get the ARRL Handbook and the ARRL 
Antenna Book ans spend some time studying while doing your experiments.

73,
Don W3FPR

On 9/30/2016 2:24 AM, Holger Schurig wrote:
> Fred Jensen  writes:
>
>> How long is the wire?
>> What band?
> Who knowns?  I'm not asking for a *specific* optimization, I'm asking
> for a general rule of thumb.
>
> I'm not talking about a permanent installation, I'm talking about going
> to some field, or hill. I don't know the band in advance, I don't know
> the propagation conditions. And I have several lengths of wire with me,
> I can adjust the wire length. And given the circumstances of the
> location, even the layout of my wire (only on fiber glass post, between
> tree and fiber glass post, etc) will change (e.g. sloper, vertical,
> etc). Even the high will be undefined and/or changeable.
>
> That is actually to fun (for me): to change things and try out.
>
>

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Re: [Elecraft] KX3: Scuff marks on display cover

[riese-k3djc]

works on watch crystals too


On Tue, 9 Aug 2016 22:55:08 -0400 Mike va3mw 
writes:
> Toothpaste. 
> 
> Colgate. 
> 
> I was taught this by a jet airplane mechanic when I was 15. That's 
> what they used on the windscreen. 
> 
> Mike va3mw
> 
> > On Aug 9, 2016, at 4:54 PM, Mel Farrer via Elecraft 
>  wrote:
> > 
> > I found that putting the clear shipping tape on the display before 
> going into the rough will save the display.  
> > 
> > Mel, K6KBE
> > 
> > 
> >  From: Ron D'Eau Claire 
> > To: 'Nick Kennedy' ; 
> Elecraft@mailman.qth.net 
> > Sent: Tuesday, August 9, 2016 1:46 PM
> > Subject: Re: [Elecraft] KX3: Scuff marks on display cover
> > 
> > A slightly more aggressive approach is to pick up the headlight 
> lens cleaner sold at most automobile stores - the stuff that takes 
> the "yellow" haze off of plastic headlight covers. It's also sold 
> for use on aircraft windshields to polish out the scratches that 
> inevitably come from charging through the air at 150 mph or so (but 
> that costs 10X as much because it is sold for use on "airplanes"). 
> > 
> > All you do is wipe it on, rubbing aggressively with a cloth and 
> then, as it turns white, wipe it off. 
> > 
> > I've read of people using toothpaste with the same result. (And 
> then you'd have a fluoride protected lens that won't get tooth 
> decay.) 
> > 
> > 73, Ron AC7AC
> > 
> > -Original Message-
> > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf 
> Of Don Wilhelm
> > Sent: Tuesday, August 9, 2016 9:42 AM
> > To: Nick Kennedy; Elecraft@mailman.qth.net
> > Subject: Re: [Elecraft] KX3: Scuff marks on display cover
> > 
> > Nick,
> > 
> > The easiest is to use a bit of oil on a cloth and rub the area 
> with some pressure.
> > That will take care of scuff marks, but it will not eliminate 
> scratches that have gouged into the plastic.
> > 
> > If the plastic surface has been gouged, I think the best thing is 
> to order a new bezel.
> > 
> > 73,
> > Don W3FPR
> > 
> >> On 8/9/2016 12:13 PM, Nick Kennedy wrote:
> >> I�ve got some scuff / scratch marks on my KX3 display�s 
> cover. (Yes, 
> >> shame on me!)
> >> 
> >> Is there any kind of buffing or cleaning agent that can fix this? 
> Or would it be better to order a replacement from Elecraft?
> > 
> > 
> > __
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> > 
> > 
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Re: [Elecraft] ½ λ dipoles

[riese-k3djc]

early on the antenna would help define the operating frequency
spark made RF everywhere and the tank and antenna coupled
the RF to the operating frequency

Bob K3DJC




On Fri, 5 Aug 2016 18:41:57 -0400 "Charlie T, K3ICH" 
writes:
> I'm curious as to when the concept of a ½ λ dipole became the norm?
> 
> In other words, the idea of the current distribution as exists on a 
> dipole.
> 
> Early pictures of typical ham antennas looked more like a set of 
> parallel
> clothesline wires.
> 
> What I gather from reading early articles,  it seemed that the more 
> wire you
> had in the air, the better it would "capture" (and radiate) the 
> signals.
> 
> Feel free to reply directly if you don't want to clutter the forum.
> 
> (k3ich at arrl dot net)
> 
> 73, Charlie k3ICH
> 
> 
> 
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf 
> Of Phil
> Wheeler
> Sent: Friday, August 05, 2016 10:58 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] OT:. G5RV's
> 
> Alas, the poor G5RV.  Now that its been flogged to death, maybe we 
> need a
> new target -- say the Windom?
> 
> Phil W7OX
> 
> On 8/4/16 10:22 PM, Wes Stewart wrote:
> > The tuner loss also depends on how it is adjusted. For example the 
> 
> > very popular high-pass Tee with three adjustable elements has an 
> > infinite number of possible combinations that will effect a match 
> on 
> > the same load Z.  One of them is the lowest loss solution, all of 
> the 
> > others aren't.
> >
> > As I said earlier, in a letter to Dean Straw dated February 2, 
> 1994 I 
> > offered an example where the SPC tuner, then current in the 
> handbooks, 
> > could be used to match an impedance of 4.34 +j46 to 50 ohm. (I 
> forget 
> > where this came from but it was a real possibility)  I assumed Qc 
> = 
> > 1000 and Ql = 300 (generous). I used Touchstone to calculate the 
> > minimum loss and maximum loss solutions The best case was 1.6 dB 
> and 
> > the worst case was 7.8 dB.
> >
> > With lower Q components, Qc = 500, Ql =200, the losses were 2.4 to 
> 9.5 
> > dB!
> >
> > Wes  N7WS
> >
> >
> >  On 8/4/2016 2:00 PM, Alan Bloom wrote:
> >> > It's a pity that too many newcomers, as well
> >> as many oldsters, are
> >> > enamored by this piece of wire.
> >>
> >> The G4RV is definitely a compromise antenna.  
> >> However its advantage is that is has low-enough SWR to be easily 
> >> matched by most tuners on a number of bands.
> >>
> >> > ... the horrific losses that could be
> >> incurred even
> >> > with high quality tuners,
> >>
> >> It's true that tuner losses are the
> >> manufacturers' dirty little secret. Loss is rarely specified, 
> partly 
> >> because it can be pretty bad, and partly because it is hard to 
> >> measure, but also because it is not constant - it depends on the 
> >> particular impedance being matched.
> >>
> >> One exception is the old Drake tuners.  Their Pi-L topology makes 
> the 
> >> loss almost independent of the load impedance.  If you can get it 
> to 
> >> match, you know that almost all the power is going into the feed 
> >> line. For example, the
> >> MN-2700 that I designed when I was at Drake was specified at 0.5 
> dB 
> >> maximum insertion loss and I did a lot of testing and tweaking to 
> 
> >> achieve that on all bands.
> >>
> >> Alan N1AL
> 
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[Elecraft] those end fed half waves

[riese-k3djc]

Well

years ago I put up a 160 meter L and found it to be a noisy band
so went to 75
found it could be matched with the K3s tuner
but I wanted to run me amp
built a matcher that did a good job with that 75 meter half wave 
that end fed half wave does a good job stateside and when 75 opens
up does a good job working DX
so its a half wave,, is end fed and I like it

Bob K3DJC

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Re: [Elecraft] OT - 6m antenna

[riese-k3djc]

geezs   google 6 meter dipole
cut a piece of wire to length and tape to a piece of 
plastic water pipe or just string up a dipole as high as you can get it
favor east / west to cover Europe etc
have fun

Bob K3DJC


On Wed, 13 Jul 2016 18:08:43 + (UTC) John Saxon via Elecraft
 writes:
> I want to start giving 6m a try, since my K3 is the first rig I have 
> had that covers 6m.  Recently I read an article describing a 
> homebrew 6m dipole.  The author had constructed a simple dipole 
> using aluminum flat stock and rods, along with some u-bolts.  I can 
> not for the life of me find that article.  I think it was recent 
> and I was hoping some one out there also saw it and can remind my 
> aging brain where I saw it.  I have checked recent QSTs and ERs to 
> no avail, although I certainly could have missed it.
> Thank you for the bandwidth,JohnK5ENQ
> 
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Re: [Elecraft] R: OT - Neumann vs. Heil Michrophone

[riese-k3djc]

Not good to use at all,,, way too broad for
crowded bands

 , Bob K3DJC


On Mon, 4 Jul 2016 18:53:36 -0600 Ken G Kopp  writes:
> In the same category as gold-plated speaker wire. (;-0)
> 
> Kudos to Elecraft for limiting TX audio to 4 KHZ, regardless of 
> filter
> selection.
> 
> ESSB is an abomination on the amateur bands!
> 
> 73!
> 
> 
> K0PP

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Re: [Elecraft] Powerpoles (again)

[riese-k3djc]

for up tp 5 amps so I like RCA Phono Plugs inex,,, cant reverse them,, 
makes it hard for other folk to borrow your gear really !

Bob K3DJC



On Sun,  3 Jul 2016 11:05:28 -0700 Bill Frantz 
writes:
> [New subject in an attempt to avoid topic drift.]
> 
> Several people have said that they don't like Powerpole power 
> connectors. I like them quite a bit, given their flexibility and 
> ease of use. I will note that the proximate problem that started 
> this thread again was a bad solder joint, which doesn't seem 
> particularly limited to Powerpoles.
> 
> What power connectors do people actually like?
> 
> 73 Bill AE6JV
> 
> ---
> Bill Frantz| "The only thing we have to   | Periwinkle
> (408)356-8506  | fear is fear itself." - FDR  | 16345 
> Englewood Ave
> www.pwpconsult.com | Inaugural address, 3/4/1933  | Los Gatos, 
> CA 95032
> 
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Re: [Elecraft] Elecraft] RFI on K3s

[riese-k3djc]

its silver plated 

Bob K3DJC
On Tue, 21 Jun 2016 16:43:44 -0500 Grant Youngman 
writes:
> I'm still wondering why anyone would BUY a bit of 10 ga twisted pair. 
> It blows the mind.
> 
> To each his own I suppose  but really?
> 
> On the other hand, I do know one or two hams who will stare at a 
> pair of RCA plugs and a bit of wire with a deer-in-the-headlights 
> look in their eyes and then drive to RS to buy a cable. 
> 
> smh ... 
> 
> Grant NQ5T
> 
> Sent from my iPhone
> 
> > On Jun 21, 2016, at 3:51 PM, w4sc  wrote:
> > 
> > Some one ask for this
> > 
> > On ePay:
> > 
> > 
>
http://www.ebay.com/itm/10-feet-10-AWG-Shielded-Twisted-Pair-Silver-Plate
d-Cable-speaker-wire-37-strands-/381493258989?hash=item58d2c52aed:g:2YEAA
OSwTapV4jU~
> > 
> > 
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Re: [Elecraft] KXPA100 Keying Mod

[riese-k3djc]

Heathkit SB220 or at least my 221 keys from the bias voltage,,, ??? 130
vo;ts or so
I did a complete install of all the Harbach updates and this makes for a
very stable amp. The heath line of anps are a deal,,, 3 to 500 bux as
opposed to
3500 for newer amps

Bob K3DJC





On Thu, 9 Jun 2016 10:43:58 -0400 David Robertson 
writes:
> Everyone.
> 
> I had an interesting experience recently. I have a KX3 and KXPA100 ( 
> #519 )
> operating in my workshop in my basement. The rig drives my Heathkit 
> SB220
> which has the Harbach soft key mod which has less then 1 volt 
> keying
> voltage. This allows me to run up to 1000 watts no problem.
> 
> A couple of weeks ago a friend brought me his home brew linear to 
> test.
> Before connecting his linear to my KPA100 output I checked the 
> schematic
> and measured the keying voltage on his linear which was 24 volts dc 
> at less
> then 100 ma. When i connected the key line from his linear to the 
> RCA jack
> on the KXPA100 interface cable the linear went to key down without 
> any
> transmit command from the KX3. I then disconnected the KXPA100 from 
> my KX3
> and using the Elecraft keying interface cable to the linear directly 
> from
> the KX3, the linear keyed up upon transmit commands from the KX3 
> normally.
> Well I finished testing my friends linear with 10 watts drive and
> everything worked fine despite reduced output power.
> 
> Later I emailed Elecraft Support and asked them about the KXPA100 
> keying
> problem.
> I quickly got a response and a solution to the problem.
> 
> It seems that the first manufactured KXPA100 linears below serial 
> number
> 700 were designed to operate the KPA500 linear which has only a 5 
> volt
> keying voltage. Evidently,There was some problems with keying 
> linear
> amplifiers with higher keying voltages so after KXPA100 serial 
> number 700
> and above Elecraft modified the keying circuit to accommodate linear 
> amps
> with keying voltages up to 30 volts.
> 
> I either missed the memo or Elecraft didn't contact those of us 
> about this
> problem. Elecraft now has a mod kit that solved the keying problem. 
> The kit
> part number is KXPAMDKT2 and is free. It consists of a 4.7K 1/4 
> watt
> ressistor (E500158) and a diode BV19WSTPMS diode (E560076). The diode 
> is
> surface mount and the resistor is a leaded resistor. The  
> instructions are
> clear but some may have problems in removing a surface mount 
> resistor (R28)
> and installing the diode in its place. The resistor in the kit 
> solders to
> existing components.
> 
> The reason I am putting out this information is because I didn't 
> know of
> the limitations of the KXPA 100's keying input circuit and could 
> have
> easily blown that circuit out. Thanks for the bandwidth.
> 73
> 
> Dave Robertson KD1NA
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Re: [Elecraft] Fw: Re: New products

[riese-k3djc]

I want to talk about the best mike to use wit my K3

Bob K3DJC

n Mon, 6 Jun 2016 17:12:05 -0500 "Terry Schieler" 
writes:
> Apparently so, Bob.  Hard to believe this many Elecrafters were 
> absent when we beat this "Touch Screen" dead horse to death three 
> weeks ago.  ;o)
> 
> Terry, W0FM
> 
> 
> -Original Message-
> From: riese-k3...@juno.com [mailto:riese-k3...@juno.com] 
> Sent: Monday, June 06, 2016 8:08 AM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] Fw: Re: New products
> 
> 
> > 
> this is going to go on for a while isnt it
> 
> Bob K3DJC   
> 
> 
> 
> I have a new car with Touchscreen controls.  When the engine is off, 
> I see all the finger marks. Ugh.  No touchscreen for me. 
> 
> 73,
> Ron, K5HM
> k5hm@gmail.com
> www.qrz.com/db/k5hm
> 
> Excelsior!
> 
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf 
> Of Jerry More
> Sent: Sunday, June 5, 2016 9:06 PM
> To: John ; n...@n5ge.com
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] New products
> 
> Oh,, and I wanted to point out that if you are using a computer with 
> CAT then most software packages allow  you to operate with keyboard 
> shortcuts to QSY, tune up, tune down, change modes, filters..etc.. 
> all up to your imagination depending on the software and your 
> needs.
> Jer
> 
> Sent from Mail for Windows 10
> 
> From: Jerry Moore
> Sent: Sunday, June 5, 2016 5:05 PM
> To: John; n...@n5ge.com
> Cc: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] New products
> 
> Adding $100 or more to add a touchscreen ui to a radio provides very 
> little value in my view, is silly. The radio cost to value ratio is 
> very low (meaning the value is high). The only exception I can see 
> would be integrating the P3 as an option (hopefully enhancing with a 
> micro computer/ssd for logging, digital, extended macros...etc, 
> basically what I'm doing now with a raspberry pi). 
> 
> So that is if the cost is comparable to getting the P3.
> 
> Without the features of the P3 integrated; who changes settings so 
> often that the included programmable macro buttons aren't enough? 
> 
> On June 5, 2016 4:35:26 PM EDT, John  wrote:
> Ha, Elecraft needs to progress at some stage, or get left behind.
> 
> Touch screen UI is and has been extensively used - 3 billion touch 
> screen smart phones out there, 1.2 billion touch screen tablets. I 
> can see you all reaching for your keyboards to protest that phones 
> and tablets are not the same thing. Well, touch screen UI have also 
> moved over to commercial products, the military and airline pilots 
> also use touch screen UI communication devices. If they are good 
> enough to be used on commercial aircraft and in military 
> applications, then it sure is good enough for ham radio.
> Touch screen UI panels having become so prolific, that they have 
> dropped the cost enormously, resolution is picture sharp and 
> reliability is extremely good. 
> Touch screens have huge potential, and almost unlimited versatility. 
> If you need more knobs or buttons on your rig, due to new features 
> having been added  no problem with a touch screen.
> Just a firmware update to add a knob, button, slider or meter onto 
> the screen.
> The problem with conventional rigs, is you run out of physical knobs 
> and buttons when features are added to the radio. I see this in my 
> KX3 - some knobs have three functions, and to try and remember what 
> each knobs second or third function does, becomes difficult.
> 
> Food for thought :-)
> 
> 73
> John
> 
> 
> 
> 
> On 5 Jun 2016, at 10:13 PM, Amateur Radio Operator N5GE 
> 
> wrote:
> 
> Don,
> 
> I suspect that having redesigned a rig with touch screen capability 
> the manufacturer would, in a short period of time realize the error 
> of their ways.  Hopfully they would still have enough capital to 
> revert to the original design and fire the person responsible for 
> the change.
> 
> On Sun, 5 Jun 2016 15:37:42 -0400, you wrote:
> Lynn,
> 
> Please tell us how a touchscreen interface can enhance usability for 
> blind operators.
> Elecraft has made a commitment for such usability for all their 
> radios with those blind operators particularly in mind.
> A GUI interface means nothing to those who cannot see it.
> 
> 73,
> Don W3FPR
> 
> On 6/5/2016 3:16 PM, Lynn W. Taylor, WB6UUT wrote:
> A radio with only physical knobs and buttons severely limits future 
> upgradability, and leads to crazy button combinations to turn things 
>  on and off that weren't even a dream when the radio was originally 
> released.
> 
> Touch screens may not be always convenient, but they're much more 
> flexible than a silk-screened metal panel.
> 
> I realize that knobs and buttons are a religion for some, but it's 
> really time to lighten up, folks.
> 
> Either that or for Elecraft to release a rig with a whole bunch of 
> "empty" buttons 

[Elecraft] Fw: Re: New products

[riese-k3djc]

> 
this is going to go on for a while isnt it

Bob K3DJC   



I have a new car with Touchscreen controls.  When the engine is off, I
see all the finger marks. Ugh.  No touchscreen for me. 

73,
Ron, K5HM
k5hm@gmail.com
www.qrz.com/db/k5hm

Excelsior!

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Jerry More
Sent: Sunday, June 5, 2016 9:06 PM
To: John ; n...@n5ge.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] New products

Oh,, and I wanted to point out that if you are using a computer with CAT
then most software packages allow  you to operate with keyboard shortcuts
to QSY, tune up, tune down, change modes, filters..etc.. all up to your
imagination depending on the software and your needs.
Jer

Sent from Mail for Windows 10

From: Jerry Moore
Sent: Sunday, June 5, 2016 5:05 PM
To: John; n...@n5ge.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] New products

Adding $100 or more to add a touchscreen ui to a radio provides very
little value in my view, is silly. The radio cost to value ratio is very
low (meaning the value is high). The only exception I can see would be
integrating the P3 as an option (hopefully enhancing with a micro
computer/ssd for logging, digital, extended macros...etc, basically what
I'm doing now with a raspberry pi). 

So that is if the cost is comparable to getting the P3.

Without the features of the P3 integrated; who changes settings so often
that the included programmable macro buttons aren't enough? 

On June 5, 2016 4:35:26 PM EDT, John  wrote:
Ha, Elecraft needs to progress at some stage, or get left behind.

Touch screen UI is and has been extensively used - 3 billion touch screen
smart phones out there, 1.2 billion touch screen tablets. I can see you
all reaching for your keyboards to protest that phones and tablets are
not the same thing. Well, touch screen UI have also moved over to
commercial products, the military and airline pilots also use touch
screen UI communication devices. If they are good enough to be used on
commercial aircraft and in military applications, then it sure is good
enough for ham radio.
Touch screen UI panels having become so prolific, that they have dropped
the cost enormously, resolution is picture sharp and reliability is
extremely good. 
Touch screens have huge potential, and almost unlimited versatility. If
you need more knobs or buttons on your rig, due to new features having
been added��no problem with a touch screen.
Just a firmware update to add a knob, button, slider or meter onto the
screen.
The problem with conventional rigs, is you run out of physical knobs and
buttons when features are added to the radio. I see this in my KX3 - some
knobs have three functions, and to try and remember what each knobs
second or third function does, becomes difficult.

Food for thought :-)

73
John




On 5 Jun 2016, at 10:13 PM, Amateur Radio Operator N5GE 
wrote:

Don,

I suspect that having redesigned a rig with touch screen capability the
manufacturer would, in a short period of time realize the error of their
ways.  Hopfully they would still have enough capital to revert to the
original design and fire the person responsible for the change.

On Sun, 5 Jun 2016 15:37:42 -0400, you wrote:
Lynn,

Please tell us how a touchscreen interface can enhance usability for 
blind operators.
Elecraft has made a commitment for such usability for all their radios 
with those blind operators particularly in mind.
A GUI interface means nothing to those who cannot see it.

73,
Don W3FPR

On 6/5/2016 3:16 PM, Lynn W. Taylor, WB6UUT wrote:
A radio with only physical knobs and buttons severely limits future 
upgradability, and leads to crazy button combinations to turn things  on
and off that weren't even a dream when the radio was originally 
released.

Touch screens may not be always convenient, but they're much more 
flexible than a silk-screened metal panel.

I realize that knobs and buttons are a religion for some, but it's 
really time to lighten up, folks.

Either that or for Elecraft to release a rig with a whole bunch of 
"empty" buttons and sell stickers to update the front panel when the 
firmware grows to need them.

On 6/5/2016 10:18 AM, Buddy Brannan wrote:
Also, can we pllease, for the love of all that is holy, not do the  touch
screen GUI? At least, not an exclusively touch




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Re: [Elecraft] K3 Remote Power On/Off

[riese-k3djc]

   
I used to just cut power,, but the K3 really didnt like that
but I got away with it always turn off before cutting power

Bob K3DJC


On Tue, 31 May 2016 22:37:02 -0400 Don Wilhelm 
writes:
> The K3 (K3S) can also be turned off safely (and store the current 
> settings) by using the PS0 command - see the Programmer's 
> Reference.
> That command cannot be used to turn it on (there is no power to the 
> K3), 
> so the POWER_ON pin in the ACC connector can be pulled low by an 
> external device.
> 
> If you simply pull power, the current settings will not be saved, 
> and 
> could result in having to reload the firmware to get it going 
> again.
> 
> 73,
> Don W3FPR

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Re: [Elecraft] PL-259 connectors

[riese-k3djc]

Used PL259s on my 432 array,, was up for 15 year and
taped and coated with silicon seal,, looked like new when I 
took them down and the match was 1.1  
good connectors 

Bob K3DJC



> On connections open to the air (on a ship that meant constant salt 
> spray) we
> carefully sealed the connection with something like "Coax-Seal" -  a 
> putty
> like sealant - followed by several layers of good quality electrical 
> tape.
> Connectors that I had installed that way a few years previously that 
> I
> needed to disconnect for some reason looked a good as the day I had
> installed them, thousands and thousands of miles and years of salt 
> water
> later. 
> 
> 73, Ron AC7AC
> 
>

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Re: [Elecraft] K3 NB

[riese-k3djc]

lots of opinions,,, what I take away is regardless of the update ( I am
woefully behind )
the NB on the K3 doesnt work well on power line noise,,, this is my
experience as well
but I am behind on the software upgrades

Bob K3DJC 

> One of the (few) disappointments of my K3 is the NB.  I've never 
> found 
> any settings which are effective against power line noise under any 
> 
> conditions, 

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Re: [Elecraft] Will the K4 look like this?

[riese-k3djc]

On Tue, 12 Apr 2016 16:17:34 -0700 Dave Cole  writes:
> What's audio direct?
> -- 
> 73's, and thanks,
> Dave (NK7Z)
apparently sounds good

Bob K3DJC

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Re: [Elecraft] Pigtails on ANT1 and ANT2 UHF Bulkhead Connectors

[riese-k3djc]

http://www.wa1mba.org/UHFconn.htm0

bob k3djc

On Wed, 17 Feb 2016 09:31:28 -0800 Jim Brown 
writes:
> On Wed,2/17/2016 6:21 AM, Clay Autery wrote:
> > Please cite your authority for the "superiority" of "UHF 
> Connectors" to quality N-Connectors.
> 

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Re: [Elecraft] Fw: Re: Elecraft Website Down

[riese-k3djc]

yepper they have york pa up as well

Bob K3DJC

On Fri, 8 Jan 2016 02:32:44 + (UTC) Harry Yingst 
writes:


Finally working again in Central NY


I have Verizon FIOS
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[Elecraft] Fw: Re: Elecraft Website Down

[riese-k3djc]

still down in york pa

very amazimg !

Bob K3DJC




Thank you for all your feedback.  Apparently, here in Southeast
Pennsylvania, something is fubar.  I have reported the trouble to Verizon
and indicated a sample of the areas that are accessing Elecraft and those
that I know of that are not working.  
The Elecraft tech dept. is looking into it again.

73,
Rob
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Re: [Elecraft] Elecraft website and Fios

[riese-k3djc]

I believe it is a Verizon issue as my DSL is out so I am not FIOS

Bob K3DJC



On Sun, 3 Jan 2016 10:30:42 -0700 (MST) ab2tc  writes:
> Hi,
> 
> Excellent work, Rick and well said about the relevance of this 
> thread.
> 
> I can also reach the FTP site. Another tidbit of information that 
> might help
> them: A guy in southern California sent me an E-mail reporting he 
> has the
> same problem and several of his buddies in the area likewise. So 
> it's not
> just an east coast thing.
> 
> Knut - AB2TC

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Re: [Elecraft] Elecraft website and Fios

[riese-k3djc]

not just FIOS verizon dsl isnt getting to elecraft either
win7 pro

Bob K3DJC


On Sat, 2 Jan 2016 15:58:46 -0500 Don Wilhelm 
writes:
> Knut,
> 
> The fact that the problem seems to be limited to Fios (but only some 
> of 
> the customers).
> Note that Steve W4FMD just posted that he had no problem with his 
> Windows 7 computer, but had the problem with his Win 10 computer 
> after 
> update Ver. 1511 Build 10586.36.
> 
> Are you running Windows 10?
> 
> 73,
> Don W3FPR

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Re: [Elecraft] Elecraft website

[riese-k3djc]

still down in central Pa,,, looks like Verizon had a major outage last
night
still problems for elecraft,, other sites work ?? odd

Bob K3DJC



On Thu, 31 Dec 2015 18:00:02 -0700 Sid Frissell 
writes:
> I just brought up the website on my iPad using first Hughesnet 
> satellite internet and then with Verizon.  Both worked fine.
> 
> Sid Frissell, NZ7M
> 
> Sent From Sid Frissell's iPad
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Re: [Elecraft] Rick & antennas...

[riese-k3djc]

i wondered about the 30 db difference,,,
har !! 

bob k3djc


> Whaaa? The Buckmaster is recommended to be 
> installed as an inverted V. That's sweet that the E Tuner gets along 
> with it but I have the 3,000w version and run full legal limit on 
> all bands (where allowed) that it operates on without the need to 
> use my tuner. Not high performance eh? Funny stuff. I suggest anyone 
> considering this fine antenna consult the  eHam reviews of it by 
> people who actually own the antenna & have experience with it. 
> Comparing a beam antenna to a wire is sort of ridiculous IMO for 
> what should be more than obvious reasons. Lotsa haters out there as 
> usual. 
> 
> kd0bcf
> 

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[Elecraft] Fw: Re: TX ESSB for K3 and CM500 headset mic

[riese-k3djc]

but its true non the less

Bob K3DJC

"Rose' didn't post this message ... I did ...  by mistake by using her
e-mail account instead of mine.  (;-)

73 - K0PP
On Oct 30, 2015 12:23 PM, "Rose"  wrote:

> Bill,
>
> The idea of using ESSB in a contesting situation is bizarre.  Why?
>
> IMO, ESSB has no place on our (usually) crowded bands, and especially
not
> in a contest.
>
> 73
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Re: [Elecraft] K3 Popping noise in headphones??

[riese-k3djc]

the only time I notice that issue is if I have the auto notch set
and tune around the band,, I just turn off auto notch and
it clears up   ??

Bob K3DJC

On Sat, 17 Oct 2015 09:59:21 -0700 Jim Brown 
writes:
> On Fri,10/16/2015 11:15 PM, Jim Bolit wrote:
> > The popping is present as I rotate the BW control back to wider 
> bandwidths also, but the popping stops once above 200 Hz bandwidth.

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Re: [Elecraft] OT: VHF radio in Tesla Model S

[riese-k3djc]

my prius c is fine,, thank you

Bob K3DJC


On Tue, 6 Oct 2015 11:15:49 -0700 Wayne Burdick 
writes:
> Dave,
> 
> It was entirely tongue-in-cheek. See my followup posting. I'm a huge 
> supporter of E-cars in general. I'm just jealous.
> 
> Wayne ("off-topic"), N6KR
> 
>

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[Elecraft] Fw: Re: On VHF & UHF radios

[riese-k3djc]

Subject: Re: [Elecraft] On VHF & UHF radios

I added the 2 meter option for the KX3
and I was impressed with the ability to handle
out of band pagers etc. I live next to a hospital and there , usually
dirty 
pagers etx cause problems with other 144 gear I have but the KX3 combo 
really handles the strong 149/150 Mhz signals ,,, could use external amp
for ssb but there pretty common and EZ to home brew

Bob K3DJC

On Wed, 16 Sep 2015 16:52:58 -0700 Jim Lowman 
writes:
> That could be, Bob.
> 
> I should have phrased my question more specifically.
> My intended use for such a transceiver would be weak-signal work.
> 
> I had the 2m option for the K3 but, with its low power output, I 
> sold it 
> and bought a Kenwood TS-2000X to be dedicated to VHF/UHF operation.
> However, this type of operation demands high power (at least 100w) 
> and 
> an antenna with high gain, so I would have to buy an external 
> amplifier 
> at any rate.

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Re: [Elecraft] Analog vs. Digital Front Ends

[riese-k3djc]

http://www.radio-electronics.com/info/antennas/basics/resonance.php


BOB k3djc
On Wed, 16 Sep 2015 08:21:03 -0700 "Wes (N7WS)" 
writes:
> I'm having a hard time understanding where the frequency selectivity 
> of a piece 
> of wire comes from.
> 
> On 9/16/2015 6:13 AM, Rick Stealey wrote:
> > And Joe presented a very useful tabulation showing how signals 
> combine.
> > One thing that we should keep in mind is that single band antennas 
> like Steppirs, single band dipoles, etc. greatly attenuate out of 
> band signals.  And from Joe's data look what a difference 10-20 db 
> can make.  This might be a good case against 80/40  fan dipoles and 
> trap tribanders.
> > Rick  K2XT 
> > _
> 
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Re: [Elecraft] Marking cables.

[riese-k3djc]

thought this thread was closed   ??

Bob K3DJC



On Wed, 9 Sep 2015 16:52:02 GMT "k...@juno.com"  writes:
> I've found the Brother "touch system to be inadequate.  The labels 
> fade very quickly in sunlight and fade (albeit much more slowly) 
> indoors.
> 
> For cables both inside and outside, I prefer coloured tape.  Scotch 
> 33 is available
> in standard colours for this purpose and can be purchased at a real 
> hardware store
> or "big box" retailer.
> 
> To differentiate between cables, I make the first colour 1.5 times 
> the width of the
> roll and subsequent colours standard width.
> 
> For example: cable 45 vs cable 54.
> 
> Cable 45 would have a wide yellow band and a regular width green 
> band.
> 
> Cable 54 would have a wide green band and a regular width yellow 
> band.
> 
> I do not use black or grey tape as they do not contrast well against 
> black or grey
> cables.
> 
> I do not use the same colour more than once so the colours can be 
> distinguished.
> 
> My experience is that violet tape does not stand up to outdoor use 
> as well as the other colours.
> 
> I use an arbitrary classification system so: Note that there are no 
> same colours
> on the same cable so there are no lines 22,33,44,55,66,77,88,99.
> 
> 1x series  Lines to HF antennas   
> 
> 2x series  Lines between equipment (rig to antenna tuner, for 
> example)
> 
> 3x series  Control lines rotor, remote antenna switch, 
> remote antenna tuner
> 
> 4x series  DC power
> 
> 5x series  AC power
> 
> 6x series  Grounds
> 
> 7x series  Lines to VHF-UHF antennas including repeaters
> 
> 8x series  not used yet
> 
> 9x series  not used yet
> 
> Should you need additional lines for a specific classification, it 
> is easy to add
> a 3rd digit with another normal width piece of tape.  For example, 
> another HF
> antenna line could be line 125:   wide brown, normal red, normal 
> green.
> 
> Signal direction of travel can be indicated so: 
> At the source, place the wide band right up to the connector, at the 
> load, place the narrow band(s) right up next to the connector.
> 
> I made up a table to indicate what goes where: (partial example 
> below)
>  CAPITALS indicate wide band.
> 
> LINECOLOURS  FROM  TONOTES
> 74  VIO - yelIC-7000  HF out   6m beam   8214 
> 64' new 7-2013
> 
> 75  VIO - grnIC-7000 VHF out   2m beam   8214 
> 56' new 8-2012
> 
> I've found it important to date each iteration of the Line sheet to 
> keep track of
> changes like adding another antenna.
> 
> In each junction-remote tuner box, there is a waterproofed line 
> sheet copy.
> I used a laser printer and then spray the sheets with Krylon matte 
> clear until the
> paper is soaked and then let it hang-dry.  I've had good results 
> with this. Inkjet
> printing will run when it gets wet or even humid.
> 
> For labeling outdoor objects, metal Dymo tape is hard to beat.  The 
> catch is
> that it is wildly expensive and takes vast amounts of money to 
> purchase the specially constructed die-cast metal lettering tool.  I 
> spent half-vast sums of money for mine at a hamfest.  The metallic 
> tape comes (came?) in aluminum and stainless steel.  UV proof and 
> the adhesive is quite strong.
> 
> For permanent writing, use a paint-based marker as the common "magic 
> marker" ink
> is subject to quickly fading. 
> 
> Markal (company name) makes a line of high-quality paint markers as 
> does Nissen.  
> If you state permits it, the xylene-based paints work better than 
> water-based.
> Check with WW Grainger or Fastenal. 
> 
> These paint markers mark on metal quite well but will flake off 
> anything that
> flexes.
> 
> The "Sharpie" metallic markers are suitable only for inside work.  
> I've not had
> much experience with their "Sharpie" paint markers. 
> 
> 72,
> 
> Tim Colbert  K3HX 
> 
> 
> 
> 
> 
> 
> Protect what matters
> Floods can happen anywhere. Learn your risk and find an agent 
> today.
> http://thirdpartyoffers.juno.com/TGL3131/55f0642926b364284f83st01duc
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Re: [Elecraft] K3 no xmit, no receive?

[riese-k3djc]

On Sat, 30 May 2015 10:34:31 -0500 James Wilson w4rk...@gmail.com
writes:
 Tom,
 
 Since you receive white noise, before you dive into
 the K3, consider that there is an item that is  common
 to all three antenna   inputs. - The BNC connector
 and coax to the BudiPole.
 
 Try another independent antenna into the antenna
 input you have active. Just a few feet of wire as an
 antenna will give you some signal reception.
 
 Then try transmitting into a dummy load using a
 completely different coax and connector.
 
 Just suggestions.
 
 73, Jim Wilson
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Re: [Elecraft] Using the Sub Receiver

[riese-k3djc]

http://www.elecraft.com/manual/E740107%20K3%20Owner's%20man%20D10.pdf


Sat, 18 Apr 2015 23:38:36 -0400 Chester Alderman
alderm...@windstream.net writes:
 Bruce,
 You obviously did not get a K3 user manual with your K3? It probably 
 would
 be very helpful if you called Elecraft and asked them to send you 
 oneand
 oh yea, it would really help with these simple issues if you would 
 read it.
 
 73,
 Tom - W4BQF
 

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[Elecraft] Fw: Re: Fw: LF New Synth/ Strange LF signal

[riese-k3djc]

Be fun to have privilege on 600 meters

Bob K3DJC

On 4/18/2015 8:38 AM, riese-k3...@juno.com wrote:
 Hi Fred

 what have you been using before for LF  ??

Palomar LF up-converter ... 0-500 KHz -- 3.5-4.0 MHz.  An awful lot of 
stuff on 80 bleeds through on it.

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Re: [Elecraft] Fw: Fw: Don't have a 50W dummy load

[riese-k3djc]

Oh Shucks

at some point elmers all used a lamp for a dummy load
back in the day with Pi tuning you could transfer a lot of
your output to a lamp,,, on 6 meters , as I recall ,, parts of the
filament would be brighter than other parts
we could talk about RF burns

HAR

Bob K3DJC 


On Thu, 26 Mar 2015 00:51:58 + (UTC) Bob Gibson via Elecraft
elecraft@mailman.qth.net writes:
  You guys are right!! SORRY FOR MY STUPID POST!! Sixty years ago I 
 did not have money for a dummy load..ENJOY   73s Bob W5RG
 

  Subject: Re: [Elecraft] Fw: Don't have a 50W dummy load

 Ummm ... several reasons.  Resistance component of an incandescent 
 bulb 
 impedance varies with the temperature [brightness] of the filament. 
 They are also somewhat reactive. 

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Re: [Elecraft] Latest MCU and DSP

[riese-k3djc]

consider
 the Power supply as well old electrolytic caps
will fail when I got mine from someone that didnt use it 
 for some time the power supply came up but the B+ was jumping
a bit I turned it off fast
may as well do the fan too
the old Heaths are good amps and not so damned heavy

Bob K3DJC

On Sat, 7 Mar 2015 15:48:02 -0500 Guy Olinger K2AV k2av@gmail.com
writes:
 If you are seriously considering an SB200 that needs a keying 
 circuit, the
 standard upgrade for any of the SB200/201/220/221 is the Harbach 
 Softkey
 keying mod, which changes it from your keying +200 volts (compatible 
 with
 nothing modern) to a tame low negative voltage low current key 
 voltage that
 works with anything modern.

http://www.cis.rit.edu/people/faculty/montag/vandplite/pages/chap_9/ch9p1
.html
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Re: [Elecraft] Synthesizer Issue

[riese-k3djc]

Hi Wayne

with the new board and software up dates is there a new band or do you
just keep tuning below
the BC band if we ever get 600 meters the K3 would be a great and
only rig to have
coverage

Bob K3DJC 


On Mon, 2 Mar 2015 18:21:50 -0800 Wayne Burdick n...@elecraft.com
writes:
 Some users of the new synthesizer have also reported an improvement 
 in the way diversity mode sounds. This is due to a change in the way 
 the receivers are driven by the synths. 
 
 In diversity mode, as long as the main and sub crystal filter 
 offsets are matched, both receivers are driven by the main synth 
 (the sub synth is not used in this case). So, when the VFO is moved, 
 the local oscillator phase relationship remains stable between the 
 main and sub receivers. 
 
 With the original synths, moving the VFO even a small amount causes 
 both the main and sub synths to be updated. Since they use separate 
 LC oscillators, the phase relationship will change. The two will 
 remain phase-locked to the reference, but the absolute value of the 
 phase between the two synths will be some value between 0 and 180 
 degrees.
 
 We'll add this to the FAQ.
 
 73,
 Wayne
 N6KR

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Re: [Elecraft] Split operation - display of Transmit frequency on keydown

[riese-k3djc]

On Wed, 18 Feb 2015 12:48:13 -0600 dave ho13d...@gmail.com writes:
 
 On the K3 here, changing mode does not cause it to drop out of 
 split. 
 I can change between SSB and CW and it remains in split. If I try to 
 


This isnt going to go away ? kinda a bit much


Bob K3DJC

 

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Re: [Elecraft] Split notes

[riese-k3djc]

HAR

as much fun as  which is the best mike for my K3 

Bob K3DJC


On Wed, 18 Feb 2015 21:19:02 -0500 W2RU - Bud Hippisley
w...@frontiernet.net writes:
 
  On Feb 18, 2015, at 8:25 26PM, KarlErb karle...@gmail.com wrote:
  
  Will now have all notes mentioning split handled as trash - if 
 not spam - in order to better enjoy the reflector. 
 
 Democracies and benevolent dictatorships are �messy�.  You�re 
 giving up a chance to see product improvements hashed out right 
 before your very eyes.  Your loss.
 
 Bud, W2RU
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Re: [Elecraft] My KX3 desk microphone project

[riese-k3djc]

^there is a good article in this months QST on building a mike
suitable for a K3,KX3

Bob K3DJC

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Re: [Elecraft] OT: Contesting / DXing practices

[riese-k3djc]

hand in hand with ESSB,, not shure why a 5 khz signal sounds better that
someone running a 3 Khz ssb  they may as well just run AM

HAR

Bob K3DJC

On Tue, 2 Dec 2014 19:11:06 + (UTC) Milverton M. Swire via Elecraft
elecraft@mailman.qth.net writes:
  It is really irritating to get stomped on by some jerk(s) 
 running several hundred watts to talk when they're less than 200 
 miles away, as happens here in southern AZ. 
 Did he had his mic gain turn way up, and his compression equally as 
 high , so he could get more PUNCH?! 
 
 73 Milverton /W9MMS

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[Elecraft] KX3 2M,, KX3

[riese-k3djc]

Just a quick report on the 2 meter option at my QTH
my antennas are 150 Ft away from many hospital pagers 
at 150 Mhz which cause issues on all the FM gear I have
so I expected the worse
but
using a simple stub I am able to eliminate any  interference from the
pagers
the stub is tunable and will notch any problems
the receiver sounds and works as well as my DEM station and takes up a
lot less space
really amazing 
the only issue was not seeing any output on the KX3 RF bridge,,, 
an nice enhancement would be to make the RF/SWR metering 
a bit more sensitive on 144
many thanks to Howard K6IA elecraft support for helping my bone headiness
I have a DEM 144 transceiver and a kenwood TS 850 up for sale
 
Bob K3DJC

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[Elecraft] rather good service fer sure

[riese-k3djc]

I had a bit of a problem installing the 144 board in the KX3 I built
actually the nut on the FET dropped off ,, I installed and removed the
unit
several times making sure the routing of the cables
I checked with Elecraft on the OK to use a drop of epoxy on the nut
and they suggested I send the KX3 back and allow them to do a full
install 
and set up

wild

that was an offer I couldnt refuse
the install of the trransverter was 
going well with no problems and I sure can
recommend the upgrade,,, it fits nice and the small coax connectors
popped
right into place
does anyone think any other manufacturer of ham gear would act in this
manor

anyone interested in a DEM 144 verter and a kenwood 850

Oh  it will be interesting to see how well the thing works as I am 200 Ft
from some very dirty 150 Mhz pagers,,, does effect the FM portion of 2
meters
but pretty clean at 144.2

Bob K3DJC

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Re: [Elecraft] Using tube transmitter with K3/KX3/K2 as receiver?

[riese-k3djc]

check the OT contest sponsored by the Antique Wireless Association
usually Hartleys or TPTG rigs what a fantastic contest
it is an honor to get a chirp report from a O O
80 and 40 meters 

I have a hartley which can chirp out of the passband of a modern rcv
depends on how much power I try to get out of it

HAR

Bob K3DJC

On Thu, 23 Oct 2014 20:25:38 -0400 david Moes dm...@nexicom.net writes:
 Good question and answers here   I did the same as don suggested up 
 till 
 recently.   I have  a Heathkit TX1.  I had no receiver until 
 recently 
 when I got the RX1 to go with it.   bit of a crappy reciever but its 
 
 still a fun to do the nostalgia thing.The TX1 will crank out a 
 whole 
 lot more power on AM and CW than the K3 and it warms the shack in 
 the 
 winter. Its not all DX and contests  sometimes its fun to get out 
 the 
 old and tinker.   next up is 1930 era two tube  push pull UX-245 40m 
 
 transmitter   now were talking chirp!.
 
 
 David Moes
 President: Peterborough Amateur Radio Club.
 dm...@nexicom.net
 VE3DVY,  VE3SD
 
 On 10/23/2014 09:13, stan levandowski wrote:
  Phil, AD5X, has an article on a T/R switch at: 
   http://www.ad5x.com/images/Articles/QSKBArevA.pdf
 
 
  I've built it and it works FB.
 
 
  As far as why one would want to do this: It's just downright fun 
 to 
  build a homebrew tube rig, for QRP or otherwise, and to restore a 
 
  vintage transmitter.  If we already have a good, modern 
 transceiver in 
  the shack, then half the problem is solved.
 
 
  I've had much fun with my Xtal controlled 6C4-5763 rig, chirps and 
 
  all
 
 
  73, Stan WB2LQF
 
  On Thu, Oct 23, 2014 at 12:18 AM, Don Wilhelm wrote:
 
  Eric,
 
  Although I am not certain why you would want to do that, it can 
 be 
  done - Elecraft gear offers seamless transceive operation all by 
 
  itself, so I do not understand the fascination with an external 
 tube 
  type transmitter.  OTOH, if you really want to do that --
 
 
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[Elecraft] K1-4 4 band version gone? (Hand SMT---Never

[riese-k3djc]

while this string is open 
 
I have used a small Iron and tweezers to position chip caps/resistors
tack one end and then do the other end,,, I use some liquid rosin
the multi lead devices make sure leads are centered on the board then
tack
one pin,,, solder the rest and use solder wick to clean up bridges
working under a mag light,,, than I go over it with a 10 power stereo
microscope
static strap fer sure 
 
however
 
when I built a DEM 1296 transverter board a chip cap got away from me
and couldnt find it,, when I was done I found it sticking to my thumb
nail
go figure
 
Bob K3DJC
 
On Sun, 20 Jul 2014 19:32:12 -0400 Bruce Beford
bef...@myfairpoint.net writes:
 While I understand this mindset; I for one, am grateful that there 
 are
 SMT-based kits available. I enjoy building both thru-hole and SMT 
 based
 projects. In many cases, thru hole equivalents are not available for 
 some
 components. I have built many all-SMT projects, notably those 
 offered by
 KD1JV,ad formerly NJQRP (now Midnight Design Solutions), among 
 others

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[Elecraft] test for traffic

[riese-k3djc]

Bob K3DJC

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Re: [Elecraft] A Good Antenna Length?

[riese-k3djc]

Hi Guy

same thing here I was going to use it on 160 but really like 75
makes a good DX antenna and when the band is open I have
no problems breaking pileups,,, up 40 Ft and out ? Horz
works OK on all other harmonic related bands ,,, did run some tests with 
a station 30 miles from me. I used to use a tuner at the base but I find
the
HB antenna tuner in the shack works well ,,,So what the heck ,,, Use a
series of ferrites on the
coax feed and run the feed about 50 Ft through the basement to the shack
not a QRP antenna ? use a Heath amp drive it wit a K3
bottom line
put up some wire and get on the air

Bob K3DJC


On Sat, 5 Jul 2014 16:08:19 -0400 Guy Olinger K2AV k2av@gmail.com
writes:
 An end-fed half wave inverted L (EFHWL) done properly works very 
 well. It
 needs to be tuned at the base of the wire against ground.
 
 An EFHWL for 80m is an excellent antenna that has no nulls and has
 vertically polarized low angle radiation equal to a decent 1/4 wave
 vertical. The horizontal wire fills in the general pattern to a 
 hemisphere
 with a broad and mild null in the direction of the horizontal pull. 
 It is
 an ideal all-distance contest antenna, because there are no holes 
 in
 coverage in any direction or elevation.

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Re: [Elecraft] KPA-500 fan noise

[riese-k3djc]

you guys

add one of these less strain on the fan and ur ears

Bob K3DJC

http://en.wikipedia.org/wiki/Thermoelectric_cooling



n Mon, 2 Jun 2014 08:46:45 -0700 (GMT-07:00) Fred Townsend
fptowns...@earthlink.net writes:
 I would hate to think what would happen if a water line breaks. Why 
 not duct the air from a portable AC unit to the KPA-500. Then when 
 the ducting breaks you won't have water all over the place... just 
 cool air.
 Seriously folks, any chance the exhaust air from the KPA is being 
 fed back into the air intake for the KPA? That will heat things up 
 in a hurry. Maybe outside air (depending where you live) ducted to 
 the KPA would keep things cooler. Failing that just empty the 
 contents of the beverage cooler into your stomach and after a while 
 the whole room will be spinning. The fans will be still running but 
 you won't notice.
 73
 Fred, AE6QL
 
 -Original Message-
 From: Fred Jensen k6...@foothill.net
 Sent: Jun 2, 2014 8:28 AM
 To: elecraft@mailman.qth.net
 Subject: Re: [Elecraft] KPA-500 fan noise
 
 Our Beverage Central is located in my shack.  I was contemplating 
 
 putting a heat exchanger on the KAP500 PA's and routing cold water 
 from 
 the drink fridge through it.  I guess that would class as 
 re-engineering?  Haven't figured out how to get the plumbing out 
 of 
 the fridge, however.
 
 73,
 
 Fred K6DGW
 - Northern California Contest Club
 - CU in the 2014 Cal QSO Party 4-5 Oct 2014
 - www.cqp.org
 
 On 6/2/2014 8:16 AM, Jim Brown wrote:
  On 6/2/2014 7:56 AM, AG0N-3055 wrote:
  You could always try replacing the fan with a quieter fan.
  I would consider that myself, but only with one recommended by 
 the
  good people at Elecraft.
 
  It is generally a bad idea to try to re-engineer a product, 
 especially
  one that is well designed. In this case, I would consider it a 
 really
  bad idea.
 
 
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[Elecraft] uhf connectors

[riese-k3djc]

Ummm

you may want to review this space http://www.wa1mba.org/UHFconn.htm
before making statements about UHF connectors

Bob K3DJC




On Sat, 17 May 2014 20:25:52 -0700 Walter Underwood
wun...@wunderwood.org writes:
 And we're still using RS-232 instead of USB. And UHF connectors, 
 which have been obsolete since the 1940's (when the N connector was 
 developed). It is all kind of embarrassing.
 
 wunder
 K6WRU


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Re: [Elecraft] Is there a reason the receive is so Skinny

[riese-k3djc]

Thanks for saying it


Bob K3DJC


 
 The infantile fascination with SSB flat from 50 Hz to 4000 Hz is
 nothing more than another childish, bandwidth wasting, QRM 
 generating
 temper-tantrum from those who don't know better or don't care.
 
 73,
 
 ... Joe, W4TV
 
 
 On 4/27/2014 10:13 AM, David Cole wrote:
  Hi,
 
  Sorry to jump in on the thread, without an answer, but a 
 question--  why
  the need for a low end below 200 HZ?  We are not broadcast 
 stations
  after all...  Maybe I am missing something but I see zero reason 
 for all
  of this Extended SSB, all it seems to do is cause splatter...
 

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Re: [Elecraft] Is there a reason the receive is so Skinny

[riese-k3djc]

A friend of mine has a flex and can vary his transmitter BW
we ran some tests
and as I told Dick,, if ur gonna chase DX as you narrow your
signal to 2 K or so with  the same mike gain etc really gives you punch
with better average power but no increase in distortion,, well not much
observing it on the P3
taking it much less than that does cause distortion bad sounding audio
but if you know any folk with a flex get them to do the same test
interesting to observe on the P3
Dick still likes to use ESSB but not when 75 is very active

long thread fer sure

HAR

Bob K3DJC



 
 The FCC rules say that an amateur station is to limit the bandwidth 
 to 
 that necessary for communications, and that is generally accepted as 
 a 
 2.8 kHz bandwidth for voice communications.
 
 For what purpose?  To sound like a broadcast station?  I do not see 
 the 
 merit in that since amateur radio should be more concerned with 
 communications effectiveness which means reducing the low frequency 
 
 content and transmitting within a 2.8 kHz bandwidth.

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Re: [Elecraft] KX3 Serious Errors in the Manual

[riese-k3djc]

U wouldnt the correct term be Return 
when talking antennas

Bob K3DJC 



On Fri, 25 Apr 2014 17:04:13 -0700 Josh Fiden j...@voodoolab.com
writes:
 Used correctly, THAT symbol is specifically Earth ground. As opposed 
 to 
 the 'sideways E' (chassis ground)  or triangle (signal) ground 
 symbols.
 
 Lots of room for confusion, and very often they seem to be used 
 interchangeably. Using them correctly conveys useful info!
 
 I vote yes for pedantic!
 
 73,
 Josh W6XU
 
 
 On 4/25/2014 3:48 PM, Alan Bloom wrote:
  For example the shape on the schematic with the three little 
  horizontal lines is referred to as a ground symbol. 
 
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Re: [Elecraft] K4?

[riese-k3djc]

but what is the best mike for My k3, K2 Kx3

Bob K3DJCi


On Thu, 24 Apr 2014 14:48:53 -0700 Tim Tucker ae...@worldwidedx.com
writes:
 Hahaha...the person(s) that don't use social media criticize the 
 mockup
 image because they don't understand that the social media icons are 
 BELOW
 the graphic, added by imgur.com so that people who do use social 
 media can
 share the image with their friends, and are not part of the actual 
 graphic.
  Oh, the irony... :)
 
 
 On Thu, Apr 24, 2014 at 2:15 PM, Gary Gregory vk1zzg...@gmail.com 
 wrote:
 
  Scott,
 
  Yepand and buttons toohowever, the space on the front 
 panel is
  limited by design and I accept the minor inconvenience this gives 
 me in
  exchange for a brilliant receiver and all the other goodies 
 Elecraft
  included in the K3.
 
  My only regret is the P3 lacking the promised remote Tx Sensor 
 which
  appears to have fallen off some list somewhere and no amount 
 asking what
  happened to it has elicited a response from Elecraft. I have given 
 up hope
  it will appear.
 
  I smiled when I read your response Scottand I still am...:-)
 
  73
 
  Gary
 
 
  On 25 April 2014 07:09, Scott Manthe scott.man...@gmail.com 
 wrote:
 
   Gary,
   Thanks for explaining. I was just curious, and no criticism was 
 intended,
   so I'm hoping that none was inferred. I agree about the K3. I'd 
 love it a
   bit more with band stacking, though...
  
   73,
   Scott, N9AA
  
  
  
   On 4/24/14 4:56 PM, Gary Gregory wrote:
  
   Scott,
  
   Simple answer is I don't use Faceplant or other social media so 
 for me
   (and this was all I was implying) it would be off my list of
  transceivers I
   might want to purchase.
  
   I know lots of folks love social media and that is good for 
 them, I
  don't
   and that may well put me in a tiny minority, so be it...:-)
  
   Beauty is in the eye of the beholder they say and I love my K3 
 but i
  know
   there are folks that do not agree with me but that too is OK.
  
   But every now and then somebody comes up with an idea and at 
 the very
   least it stimulates (or at least I hope it does) the fertile 
 minds at
   Elecraft..:-)
  
   73
  
   Gary
  
  
 
 
  --
 
 
 
  *Gary - VK1ZZ, K3NHLSkype: Gary.VK1ZZhttp://www.qsl.net/vk1zz
  http://www.qsl.net/vk1zzMotorhome Portable*
  *Grumpy's House*
 
 
  *Elecraft K3KPA500FTKAT500FT*
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 -- 
 Owner, worldwidedx.com
 AE6LX, Amateur Radio
 NNN0ITA, Navy MARS
 NNN0GAF FOUR, Southern CA Director Assistant for Training, Navy 
 MARS
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Re: [Elecraft] Rotten Signals

[riese-k3djc]

  If I had a 
 device that is similar in capability to the P3 to monitor my 
 transmitted signal that might suffice. 

Just get rid of ESSB on 75 meters

Har

Bob
K3DJC

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[Elecraft] Fw: Anti Static Mats

[riese-k3djc]

I used a large piece of PC board and a ?? 100 K resister to ground
via a long jumper cord

Bob K3DJC

Due to the recent subject of Anti Static mats, I did a little googling 
and thought I'd share my findings.

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Re: [Elecraft] K3 - Ergonomics

[riese-k3djc]

 I had to have my orthopedic surgeon repair my hand
from the Ergonomics on the K3

Har

Bob K3DJC
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Re: [Elecraft] K3 in WPX SSB with 2.7 roofer

[riese-k3djc]

actually loading coils were to reduce overall  loss
by helping to cancel the line capacity
before amplifiers 1000 cycles was the frequency passed with 
best loss Characteristics the phones were designed to emphasise that
frequency
whats that you say 
making phone calls werent for sissies

Bob K3DJC

On Mon, 31 Mar 2014 10:52:13 -0400 George Danner
gdan...@windstream.net writes:
 One of the things that Bell Labs found in adding loading coils to 
 phone 
 lines (to reduce the high frequencies) was that in an audio system 
 if you 
 reduce the high frequencies then you needed to also reduce the low 
 frequencies to keep the intelligibility constant.
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[Elecraft] Fw: Re: KX3 through TSA Security ?

[riese-k3djc]

this is going to go on for a while isnt it  ??

Bob K3DJC

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Re: [Elecraft] K3/Heath SB-200

[riese-k3djc]

the output relay is driven/switched by a transistor should be little
current involved
the heath keys off the final bias supply ?? 130 volts and a fair amount
of current
I would always use an interface between a modern rig and any older amp
the ol heath amps are a fantastic deal with or without the harbach mods
I just completed mine with an upgrade for the fan  the soft start/key and
power upgrades are
well worth the price and the fun of installing
Harbach makes a good product and support 

Bob K3DJC



dnt b
On Tue, 04 Mar 2014 19:08:12 -0500 Don Wilhelm w3...@embarqmail.com
writes:
 Larry,
 
 Why not measure the current.  Break the positive 12 volt Power 
 Supply 
 connection and insert your DMM set to measure current.  Then short 
 the 
 keying input line on the relay box.  You DMM will tell you how much 
 
 current is being drawn.
 

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[Elecraft] Update Status

[riese-k3djc]

It would be nice if you were able to add the portion of the update you
felt you wanted
I havent updated since I added the P3,,, makes me an Ol Fart
but I would like the enhancements for the noise blanker and some other
parts of the K3
but
I dont want to have relearn the menu etc with some of the complete
software updates
I really like my K3 and dont want to do a complete upgrade
but I may have to

Bob K3DJC

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Re: [Elecraft] Update Status

[riese-k3djc]

On Fri, 28 Feb 2014 19:38:22 -0500 Don Wilhelm w3...@embarqmail.com
writes:
 Bob,
 
 You will not have to relearn the menu even with complete firmware 
 upgrades.  Things do not change THAT much.  Sometimes a new function 
 is 
 added, but you don't have to use it unless it interests you. Added 
 functions rarely change the operation unless you encounter that new 
 
 function in some way.


and that is my ummm fear having had the megacount button radios
inadvertently hitting one could take a long time sorting back out
the best part of elecraft gear is outstanding dynamic range and
just enough buttons
if it ever warms up looking forward to backpacking/biking with the KX3
built em both love them both

HAR

Bob K3DJC 

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Re: [Elecraft] Noise, RFI ?

[riese-k3djc]

I had local power line noise
so
Send a letter / form you can download from the ARRL to both CalTran and
the FCC local office
you will get results,, send to the in charge office of caltran
spend a buck and use USPS ceritfied letter with a return rcpt
it works

Bob K3DJC


 
 My current noise source is a sodium vapor lamp lighting the 
 interstate 
 off ramp about a mile from here.  The lamp is dying, it goes through 
 the 
 start sequence, appears to be firing up and then dies.  It will 
 repeat 
 in a couple of minutes.  The street lamp belongs to CalTrans, I 
 can't 
 get them to fix it.  Then again, I really have no illusions about 
 getting the State of California to fix anything.
 
 Unfortunately, tracking down noise with a portable radio [I use my 
 KX1] 
 requires that the noise be present for significant periods.  Good 
 luck, 
 if you find it, I'd like to know the source.
 
 73,
 
 Fred K6DGW

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Re: [Elecraft] VHF/UHF

[riese-k3djc]

to down east microwave
Bob K3DJC


On Mon, 3 Feb 2014 20:22:40 -0500 (EST) dbellw...@aol.com writes:
 I'd love to have a K3 size VHF/UHF radio covering 2 Meters through 
 1296,  
 all mode.  When do I send my check?
  
 73, Dave
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Re: [Elecraft] Would anyone like to see an all-mode VHF/UHFoffering from Elecraft?

[riese-k3djc]

more knobs more buttons,,, hundreds of buttons

HAR

Bob K3DJC


On Fri, 31 Jan 2014 15:36:58 -0500 Joe Subich, W4TV li...@subich.com
writes:
 
  A K3-based successor to the Yaesu FT-736 would be  far, far 
 better.
 
 The FT-736R is at least half again the size three times the weight
 of the K3/10 with KXV-2 for approximately the same power output.  
 One
 still needed external amplifiers for reasonable ( 100W) power 
 level.
 
 There is little difference in size, weight and complexity between 
 the
 K3/10 with KXV-2 plus XV-220/430 (or K3/100 with XV-144/220/430) 
 and
 the FT-736R but the performance difference is night and day.


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Re: [Elecraft] KX3 firmware rev. 1.84 (broadcast-band optimizations)

[riese-k3djc]

sure be nice to operate 600 meters if/when

Bob K3DJC
On Sun, 5 Jan 2014 17:59:21 -0800 Wayne Burdick n...@elecraft.com
writes:
 We had a great response to our request for volunteers to test this -- 
 too many to send out individually. Chances are this will be ready 
 for beta-test early next week. You'll be able to get it from our 
 website then.
 
 73,
 
 Wayne
 N6KR
 
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[Elecraft] KX3 agc

[riese-k3djc]

gang

put my KX3 together and after installing an in line fuze fired er up
most impressive receiver,,, unable to do a good test as right now I am
being slammed wit power line noise

but

has anyone played with AGC threshold settings,,, I find it is a bit ummm
noisy  some time ago someone presented different settings for the K3
agc and I followed that and really improved things,, for my ears

back in the day it was AGC on/off and if you had a really expensive radio
AGC slow/fast/medium
any one played with the settings

Looking forward to warmer weather and field operations with the KX3

Bob K3DJC

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[Elecraft] Fw: KX3 agc

[riese-k3djc]

didnt mention used mostly on SSB

has anyone played with AGC threshold settings,,, I find it is a bit ummm
noisy  some time ago someone presented different settings for the K3
agc and I followed that and really improved things,, for my ears

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Re: [Elecraft] Fw: KX3 agc

[riese-k3djc]

that's the site.. added it to my favorites

thanks  Bob K3DJC 



On Thu, 28 Nov 2013 07:57:30 +1100 Matt VK2RQ matt.vk...@gmail.com
writes:
Did you check out this article from Don W3FPR?
http://www.w3fpr.com/K3_AGC.htm

It was written for the K3, but is relevant to the KX3 as well.

73,
Matt VK2RQ
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Re: [Elecraft] KNB2 - looking for experience with mods that made it effective

[riese-k3djc]

Sounds like Plasma TVs I have one local that pretty messes up 
stuff around 3820 and it drifts ,,, put together a small loop and try to
DF it

Bob K3DJC


On Wed, 9 Oct 2013 16:20:43 -0700 (PDT) Stan AE7UT ae7...@gmail.com
writes:
 Thanks Don and Ron.
 
 I checked the NB and it appears to be working fine.
 I added the .001 and didn't notice any significant change in the 
 pulsing
 noise I'm hearing.
 
 I wish I could show a screen shot from my P3.  There are multiple 
 large
 swaths of pulsing
 S9+ RF in this rural town.  I do live about 3 miles from a power 
 plant with
 large electric lines
 about a mile away.  I've never really gone out and tried to pin down 
 the
 noises.  Sounds like
 a job for the KX3 on a lonely night.  In between the patches of 
 noise it's
 VERY quiet.  
 My glass is half full!  
 
 Thanks for the help.
 
 73
 Stan AE7UT  
 
 
 
 
 --
 View this message in context: 

http://elecraft.365791.n2.nabble.com/KNB2-looking-for-experience-with-mod
s-that-made-it-effective-tp7579755p7579758.html
 Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] Fw: K3 Suddenly died

[riese-k3djc]

but what microphone should I use on my K3

Bob K3DJC
On Mon, 7 Oct 2013 14:43:39 -0400 Charlie T, K3ICH pin...@erols.com
writes:
 
 
 What is most amazing about this thread is that two sides can state 
 the exact
 same thing, but find fault with and argue with the other.. (???)
 It's bordering on comical.
 
  73, Charlie k3ICH
 
 
  - Original Message - 
  From: Walter Underwood wun...@wunderwood.org
  To: Richard Fjeld rpfj...@embarqmail.com
  Cc: Elecraft Reflector elecraft@mailman.qth.net
  Sent: Monday, October 07, 2013 12:26 PM
  Subject: Re: [Elecraft] K3 Suddenly died
 
 
  Of course. My point was for a given current, so 20A at 120V and 
 20A at 
  13.8V.  --wunder, K6WRU
 
  On Oct 7, 2013, at 9:03 AM, Richard Fjeld wrote:
 
  I stated the voltage drop across a resistance (the wire 
 conductor) is 
  directly proportional to the amount of current flow (amperage) 
 through 
  it.
 
  For a given resistance, as the current increases through it, the 
 voltage 
  drop increases in it.
 
  Changing the supply voltage will change the current flow through 
 the 
  same conductor resistance and affect the voltage drop in it.
 
 
 
  -Original Message- From: Walter Underwood
  Sent: Monday, October 07, 2013 10:20 AM
  To: Elecraft Reflector
  Subject: Re: [Elecraft] K3 Suddenly died
 
  There is a point which could be made -- the percentage voltage 
 drop is 
  bigger at 12V than at 120V.
 
  If the voltage drop on your power supply wire is 2V for a given 
 current, 
  that is the same regardless of the supply voltage. With a 120V 
 supply, 
  the wire will deliver 118V and with 13.8V it will deliver 
 11.8V.
 
  So the same voltage drop can matter more at lower supply 
 voltages.
 
  Note that I'm ignoring the difference between AC and DC and skin 
 effect.
 
  wunder
  K6WRU
 
 
 
 
 
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[Elecraft] Fw: 43' Vertical

[riese-k3djc]

last year I used some telescoping mast
( ended up needing to guy it )
made a 40 meter vert and ran out 20 or so 
short to long above the ground radials,,, longer ones through a tree
up perhaps 18 ft above the ground,,, the radiator is off the side of a
porch
added PVC outriggers and added 30 meter 20/and 10 meter sections
could add more bands,,, the 40 meter section worked on ?? 15 meters
tied them all together at the base of the tubing
works like a champ
a real dx antenna on 40 after dark
no need for a tuner as each section is on frequency
not sure what all the fuss is about a 43 ft radiator
I have considered replacing the mast with aluminium tubing
but it is still up and cost  ?? less than a 100 bux for the plastic mast
40 meter wire runs inside the mast
the whole thing is mounted on a back enclosed porch and the radials fan
out
across the roof of the porch and tree
I see no problem doing the same thing off an open deck and just run the
radials
stapled under the deck 

Bob K3DJC
r

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[Elecraft] UHF CONNECTORS

[riese-k3djc]

http://www.wa1mba.org/UHFconn.htm

OK

you made me dig this out 

Bob K3DJC



On Fri, 26 Apr 2013 19:05:53 -0700 Walter Underwood
wun...@wunderwood.org writes:
 On Apr 26, 2013, at 8:57 AM, riese-k3...@juno.com wrote:
 
  The UHF connecor will handle more power than a type N,,, has 
 negligable
  loss through 450 Mhz
 
 The N connector handles higher voltages and thus more power than 
 UHF.
 
 BNC is 500V peak: 
 http://www.amphenolrf.com/products/bnc.asp?N=0sid=5179C380537E17F;
 UHF is 500V peak: 
 http://www.amphenolrf.com/products/uhf.asp?N=0sid=5179C3807BBEE17F;
 Type N is 1500V peak: 
 http://www.amphenolrf.com/products/typen.asp?N=0sid=5179C38028A2E17F;
 
 The UHF connector has substantial loss at 450 MHz, 1dB per connector 
 pair. 
 
 http://www.qsl.net/vk3jeg/pl259tst.html
 
 wunder
 --
 Walter Underwood
 K6WRU
 CM87wj
 
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[Elecraft] Fw: Re: KXPA100 AMP and KXAT100 ATU pics and info

[riese-k3djc]

Oak Hills Research sells a similar BNC bulkhead connector that fits in a
UHF hole.

http://www.ohr.com/parts.htm

BNC can handle roughly the same power as UHF. The max voltage on an
Amphenol UHF connector is 600V. The max for BNC is 500V. A Type N
connector can handle 1500V, so you can see how poor the UHF is for its
size.

wunder
K6WRU
`


The UHF connecor will handle more power than a type N,,, has negligable
loss through 450 Mhz
EZ to install and anyone that installs any connector outside and doesnt
tape and seal is asking for issues
used UHFs in a 432 array which was up for 10 years the connectors were as
bright N shiny
as when I out em up,,, when I took then down

Bob K3DJC
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Re: [Elecraft] KXPA100 AMP and KXAT100 ATU pics and info

[riese-k3djc]

Its actually P O O P

People Order Our Products

Bob K3DJC

:
 As we say down here in upside - down world, built like a brick 
 outhouse
 73
 Kevin
 VK3DAP / ZL2DAP
 
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Re: [Elecraft] K3 with Heathkit SB200

[riese-k3djc]

So it is like a new Heath SB 200  ?? then you will have to change the PTT
line and I would suggest
http://harbachelectronics.com/ I did all the mods to one I picked up and
it works
great run maybe 70 watts or so into it,,, if you have the manual
check on the drive
recommendations,,, the amp is a great old work horse the harbach mods
are great and EZ to build
consider changing it to 220 

Bob K3DJC




On Sat, 20 Apr 2013 15:49:45 -0500 K5HM k5hm@gmail.com writes:
 Have a newly refurb'ed SB200 that I want to run with my K3. But not 
 sure how
 to proceed.  
 
 If anyone is running an SB200 with their K3, I would appreciate any 
 tips,
 especially about the ALC and PTT lines. 
 
 Thanks
 
 73,
 Ron, K5HM
 k5hm@gmail.com
 www.qrz.com/db/k5hm
 
 
 
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Re: [Elecraft] [OT] Lead-acid battery question

[riese-k3djc]

well it certanily sounds unhappy
check to see if there is any drain
as your system sets idle,, something
may be draining the battery

Bob K3DJC
On Mon, 08 Apr 2013 09:15:44 -0700 Vic K2VCO k2vco@gmail.com
writes:
 I know there are those on this list who can help me.
 
 I have a 5 kW generator at my house. It runs automatically once a 
 week for a half hour to 
 charge the (sealed) battery. The first battery lasted for about 10 
 years! The present 
 battery is about 2 years old.
 
 Some months ago, I noticed that it wasn't running. I found the 
 battery dead. I took the 
 battery back to Batteries Plus where I got it; they charged it 
 overnight and tested it 
 under load. They said the battery was OK. When I started the 
 generator and checked the 
 charging voltage, it was 13.8V which I thought was marginal, so I 
 replaced it.
 
 Yesterday the generator would not start. The battery voltage with no 
 load was 11.5V. I 
 left it on the charger all day. Then this morning I checked the 
 voltage and it was 13.5V. 
 The generator started up and the charging voltage was 14.5V.
 
 Do I have a bad battery?
 
 -- 
 Vic, K2VCO
 Fresno CA
 http://www.qsl.net/k2vco/
 
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Re: [Elecraft] [OT] Lead-acid battery question

[riese-k3djc]

well it certanily sounds unhappy
check to see if there is any drain
as your system sets idle,, something
may be draining the battery

Bob K3DJC
On Mon, 08 Apr 2013 09:15:44 -0700 Vic K2VCO k2vco@gmail.com
writes:
 I know there are those on this list who can help me.
 
 I have a 5 kW generator at my house. It runs automatically once a 
 week for a half hour to 
 charge the (sealed) battery. The first battery lasted for about 10 
 years! The present 
 battery is about 2 years old.
 
 Some months ago, I noticed that it wasn't running. I found the 
 battery dead. I took the 
 battery back to Batteries Plus where I got it; they charged it 
 overnight and tested it 
 under load. They said the battery was OK. When I started the 
 generator and checked the 
 charging voltage, it was 13.8V which I thought was marginal, so I 
 replaced it.
 
 Yesterday the generator would not start. The battery voltage with no 
 load was 11.5V. I 
 left it on the charger all day. Then this morning I checked the 
 voltage and it was 13.5V. 
 The generator started up and the charging voltage was 14.5V.
 
 Do I have a bad battery?
 
 -- 
 Vic, K2VCO
 Fresno CA
 http://www.qsl.net/k2vco/
 
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Re: [Elecraft] RepetitiveK on 7.039.3 question

[riese-k3djc]

may be a coke bottle caught on a window blind waving in an open window
tipped on to a straight key   ??

Bob K3DJC
On Wed, 3 Apr 2013 10:00:07 -0700 (PDT) Dave KK7SS kk...@frontier.com
writes:
 For at least the last 5 hours, there has been a station sending the 
 letter K on 7,039.3 CW once every second non-stop.
 Can anyone tell me what it is for??
 
  
 --
 Dave G  KK7SS
 Richland, WA
 
 KX3 #097
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Re: [Elecraft] K3 power instability issues

[riese-k3djc]

dont worry they will start talking about the best mike to use with the K3
odd lot

Bob K3DJC

On Thu, 21 Mar 2013 23:32:41 -0400 (EDT) w...@iw.net writes:
 Not to be a whiner, but ...
 
 I signed up to the Elecraft reflector looking for some
 assistance in troubleshooting my K3.  I'm continuing to
 work on the problem, with assistance from Elecraft 
 support.  I also received a number of suggestions from
 subscribers to the reflector -- thanks!
 
 However, by my count more than 1/2 of the previous 90+
 posts have been about contesting or debating whether ham
 radio is a sport.  Not quite what I had in mind when I
 signed up to the reflector.  True, there is the delete
 key, but there comes a point when the signal to noise
 ratio just gets too low and it's time to move on.  I
 think I've reached that point.
 
 Thanks again for everyone's help.
 
 73,  Arliss  W7XU
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Re: [Elecraft] Kenwood Mc-60 mic with K2

[riese-k3djc]

I thought the list admin requested ending this string  ??

Bob K3DJC
On Fri, 15 Mar 2013 08:25:57 -0400 Stephen Roberts
steve...@shoreham.net writes:
 There is no A anywhere indicated on the microphone or base. Preamp 
 is off and switch is on low impedence. When I plug it in I get a 
 continuous series if dits and no response from any of the controls 
 on the unit.
 
 Steve
 W1SFR
 
 
 Sent from my iPad
 
 On Mar 14, 2013, at 9:44 PM, Joe Subich, W4TV li...@subich.com 
 wrote:
 
  
  With a preamp switch on the base, that is an MC-60A.
  
  What position is the slide switch *on the microphone*?  That is 
 the
  switch that determines high vs. low impedance.  You  want it in 
 the
  Low (500 Ohm) position for the K2 (and K3).   There are two 
 switches
  - the one toward the rear is impedance, the one toward the front 
 is
  ON/OFF (the microphone element is disconnected in the OFF 
 position).
  
  If your microphone did not come with a manual, you may want to 
 download
  a copy from:  http://homepage.ntlworld.com/wadei/MC-60A.pdf or
  http://www.n6wk.com/kenwood/MC-60A.pdf
  
  73,
  
... Joe, W4TV
  
  
  On 3/14/2013 7:15 PM, Mike Flowers wrote:
  My MC-60 mic says on the bottom by the switch 'mic amp' in/out.   
 There
  isn't an 'A' on the Kenwood trim on the front - just MC-60.   
 Although it
  may be an MC-60A, there is no visible designation as such.
  
  - 73 de Mike, K6MKF, W6NAG, NCDXC, Conway Reef 2012, K3-P3 
 Addict, Maui
  
  -Original Message-
  From: elecraft-boun...@mailman.qth.net
  [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don 
 Wilhelm
  Sent: Thursday, March 14, 2013 4:12 PM
  To: elecraft@mailman.qth.net
  Subject: Re: [Elecraft] Kenwood Mc-60 mic with K2
  
  The MC-60 (not A) schematic that I see on the G4WPW website 
 indicates that
  the switch changes from low impedance to high impedance.  For use 
 with the
  K3 and other modern transceivers the switch should be in the low 
 impedance
  position.
   From the schematic, I cannot understand an out label on the 
 switch.
  If you have an MC-60A, then out would be reasonable referring 
 to the
  preamp either in or out.
  
  73,
  Don W3FPR
  
  On 3/14/2013 6:53 PM, Stephen Roberts wrote:
  It's a MC-60 and the switch is Out.
  
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[Elecraft] test

[riese-k3djc]

not showing any traffic
Bob K3DJC
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[Elecraft] KX3 on 600 meters ?

[riese-k3djc]

Hi Guys

just got back on the list,,, I had a cornea transplant one down one to go
generally I am having pretty good vision days and am anxious to attack
the KX3 kit I kinda remember remarks that the KX3 may
work/updated/modified
to work on 600 meters any info on that

Bob K3DJC
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Re: [Elecraft] KX3 Apps for Android

[riese-k3djc]

./;I have the SSTV and PSK31 on my xoom,,,problem is the xoom doesnt have
a mike input other than the built in mike
however it works well and plugging a set of ear buds in and positioning
them at the xoom mike input allows for
decoding,, I havent gone the next step to build an isolator cable to go
from the xoom out to the K3 inhe has 
an interface for some rigs but your tablet needs to have a mike in,,, 
there is nothing wrong wit using v o x to switch the k3 to tx

Anndroid is amazing 

Bob K3DJCi



On Wed, 17 Oct 2012 04:58:06 -0500 Jim Rhodes jimk...@gmail.com writes:
 You might check out www.wolphi.com for apps and interface. I have not 
 tried
 his stuff yet, but intend to when I get the time.
 
 Jim K0XU Sent from my Xoom tablet
 On Oct 16, 2012 8:15 PM, John Lally jla...@icehouse.net wrote:
 
  Does anyone know of any apps for android for a KX3 and interface 
 cables?  I
  am especially interested in an app which will do psk31.  The phone 
 would be
  a Motorola Razr.
 
 
 
  Thanks,
 
 
 
  John Lally
 
  W7JJL
 
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