Re: [Elecraft] Antenna for 2nd receiver

[Vic Rosenthal]

I like the Pixel Loop (I think DX Engineering now makes it). It is vertically 
polarized and somewhat directional, which makes it work well for diversity. It 
works throughout the HF bands, can null local QRN, and has a feature to turn 
itself off when you transmit in order to protect its preamp and your receiver.

Vic 4X6GP

> On 3 Jan 2017, at 03:11, Paul Van Dyke  wrote:
> 
> I broke down and bought a K3s and now I'm going to have the second
> receiver. Can somebody tell me a good antenna to put on there as I will be
> using a TH11DX as the main antenna
> 
> Thank you
> Paul - KB9AVO
> 
> 
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Re: [Elecraft] Antenna switches

[Robert Nobis]

I agree, isolation is the most important factor for antenna switches. However, 
I wouldn’t use a switch unless it had at least 60dB of isolation in the HF 
band, even with Tx power of 100-watts.

73,


Bob Nobis 
n7...@nobis.net


> On Jan 2, 2017, at 20:23, Don Wilhelm  wrote:
> 
> Jim,
> 
> The most important factor when talking about connecting multiple transceivers 
> to antennas is isolation.
> The real question is just how much RF energy will leak back into the 
> non-transmit transceiver.
> Yes, there is the possibility of damage to the receiving circuits and T/R 
> switch of the receive transceive that is just supposed to be listening if it 
> gets too much RF at its receive input.
> 
> That is what the real discussion is all about.  The amount of isolation 
> required in the switch depends on the power level.  If you are talking about 
> 100 watts power from the transmitter, 40 dB isolation is likely OK, but at 
> higher powers, you will need more isolation.
> 
> 73,
> Don W3FPR
> 
> On 1/2/2017 9:53 PM, Jim Miller wrote:
>> Off topic.  Sorry.  What are the functional disadvantages that make it
>> apparently undesirable to build an antenna switch that is a crossover 2
>> radios x 2 antennas?  What if you only used one path at a time but could
>> switch them easily?  Crosstalk?  Is it so strong as to damage the other
>> radio?  Is it not possible to achieve acceptable compatibility with 2 radios
>> and 2 antennas?  Or to swap amplifiers between two radios and two antennas
>> by placing one on the input and another on the output of the amplifiers?  Or
>> to swap in the better antenna for a short contact that you just can't seem
>> to make on the current one?
> __
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> 

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Re: [Elecraft] Antenna switches

[Don Wilhelm]

Jim,

The most important factor when talking about connecting multiple 
transceivers to antennas is isolation.
The real question is just how much RF energy will leak back into the 
non-transmit transceiver.
Yes, there is the possibility of damage to the receiving circuits and 
T/R switch of the receive transceive that is just supposed to be 
listening if it gets too much RF at its receive input.


That is what the real discussion is all about.  The amount of isolation 
required in the switch depends on the power level.  If you are talking 
about 100 watts power from the transmitter, 40 dB isolation is likely 
OK, but at higher powers, you will need more isolation.


73,
Don W3FPR

On 1/2/2017 9:53 PM, Jim Miller wrote:

Off topic.  Sorry.  What are the functional disadvantages that make it
apparently undesirable to build an antenna switch that is a crossover 2
radios x 2 antennas?  What if you only used one path at a time but could
switch them easily?  Crosstalk?  Is it so strong as to damage the other
radio?  Is it not possible to achieve acceptable compatibility with 2 radios
and 2 antennas?  Or to swap amplifiers between two radios and two antennas
by placing one on the input and another on the output of the amplifiers?  Or
to swap in the better antenna for a short contact that you just can't seem
to make on the current one?

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Re: [Elecraft] Coaxial Transfer Switches

[Richard Fjeld]

I just bought a DPDT toggle switch to replace a winch control with push 
buttons.  The guy at the counter said his catalog specs showed 50 A at 
12 volts.  That seems hard to believe, but it seems rugged and I needed 
it now.  I bought it at NAPA auto parts.  It was about $12 incl sales 
tax.  One thing that may have driven the price up is that I needed a 
momentary with center off.  They had enough to chose from that he had to 
look it up in his parts book.

Dick, n0ce


On 1/2/2017 2:51 PM, Dauer, Edward wrote:
> Just did some shopping on the Internet and found transfer switches by 
> Teledyne starting at about $275.  Did not find any Birds, used or otherwise, 
> and the Transcos I found were in the $800 range.  I confess this was a very 
> quick search.
>
> Interesting that many if not most of them require 28 VDC.  Anyone know why?  
> Is that a marine application?  These seem too heavy for aviation.
>
> The subject is of interest because I have two MFJ SPDT switches, neither of 
> which I particularly like.  One of them works fine if the switch knob is 
> toggled back and forth a few times.  And that’s the one that’s been indoors 
> all its life.  Anyone found something DPDT, store-bought and acceptable, in a 
> moderate price range?
>
> Ted, KN1CBR
>
>
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[Elecraft] Antenna switches

[Jim Miller]

Off topic.  Sorry.  What are the functional disadvantages that make it
apparently undesirable to build an antenna switch that is a crossover 2
radios x 2 antennas?  What if you only used one path at a time but could
switch them easily?  Crosstalk?  Is it so strong as to damage the other
radio?  Is it not possible to achieve acceptable compatibility with 2 radios
and 2 antennas?  Or to swap amplifiers between two radios and two antennas
by placing one on the input and another on the output of the amplifiers?  Or
to swap in the better antenna for a short contact that you just can't seem
to make on the current one?  

 

I don't relish placing a switch on each antenna and another switch on every
radio in order to connect anything to anything.  How do you do it?  

 

It would take 4 1x2 switches on the input of the amplifiers and 4 more on
the output to do what could be done with 2 switches of 2x2.

 

Thanks, Jim KG0KP

 

 

 

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Re: [Elecraft] Antenna for 2nd receiver

[Matt Zilmer]

I use a 200 foot doublet on the Main, and a 33 foot vertical on the 
Sub.  Does quite well on 40, 15m.


73,

matt W6NIA


On 1/2/2017 5:11 PM, Paul Van Dyke wrote:

I broke down and bought a K3s and now I'm going to have the second
receiver. Can somebody tell me a good antenna to put on there as I will be
using a TH11DX as the main antenna

Thank you
Paul - KB9AVO

On Jan 2, 2017 2:05 PM, "Rick Tavan"  wrote:

Looking for a sounding board here to jump-start my brain. I run Windows 7
under VMware Fusion on a Macbook Pro. Although it's a difficult environment
to maintain, most Windows software works well. I run RemoteRig boxes to
connect a local K3 acting as a control head to a remote K3. The RemoteRig
box presents the remote K3's serial port as a local port (COM12 today) and
both Writelog and N1MM+ can connect to it and control the remote radio.
Right now, however, K3 Utility and K3 Memory Editor are not connecting to
it. (Yes, I terminated the loggers before trying the Elecraft apps.) I'm
pretty sure this configuration used to work, so I'm baffled. Usually it's
the other way around - a COM port has changed and I use K3 Utility to
discover which new port number to specify in the logger. But today the
logger connects and Utility doesn't.

If I eliminate the RemoteRig boxes and associated K3 Remote firmware, both
K3 Utility and the logger connect to the local K3 just fine from the
virtual Windows OS. I'm running FW Rev 5.55 on both K3's.

Any ideas?

Thanks,

/Rick N6XI

--

Rick Tavan
Truckee, CA
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--
Always store beer in a dark place.  - R. Heinlein

Matt Zilmer, W6NIA
[Shiraz]

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Re: [Elecraft] Antenna for 2nd receiver

[Bill Frantz]

I rarely use diversity reception, but I should set up my antenna 
switch to use it. Most of my use of the second receiver is to 
listen to the pileup or to listen to other signals when 
monitoring a frequency e.g. for a net to start. For me, 
monitoring the pileup is the killer application.


For diversity, almost any antenna as a second antenna will get 
you started.


73 Bill AE6JV

On 1/2/17 at 5:11 PM, pvandyke1...@gmail.com (Paul Van Dyke) wrote:


I broke down and bought a K3s and now I'm going to have the second
receiver. Can somebody tell me a good antenna to put on there as I will be
using a TH11DX as the main antenna

---
Bill Frantz|"After all, if the conventional wisdom was 
working, the
408-356-8506   | rate of systems being compromised would be 
going down,

www.pwpconsult.com | wouldn't it?" -- Marcus Ranum

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[Elecraft] Antenna for 2nd receiver

[Paul Van Dyke]

I broke down and bought a K3s and now I'm going to have the second
receiver. Can somebody tell me a good antenna to put on there as I will be
using a TH11DX as the main antenna

Thank you
Paul - KB9AVO

On Jan 2, 2017 2:05 PM, "Rick Tavan"  wrote:

Looking for a sounding board here to jump-start my brain. I run Windows 7
under VMware Fusion on a Macbook Pro. Although it's a difficult environment
to maintain, most Windows software works well. I run RemoteRig boxes to
connect a local K3 acting as a control head to a remote K3. The RemoteRig
box presents the remote K3's serial port as a local port (COM12 today) and
both Writelog and N1MM+ can connect to it and control the remote radio.
Right now, however, K3 Utility and K3 Memory Editor are not connecting to
it. (Yes, I terminated the loggers before trying the Elecraft apps.) I'm
pretty sure this configuration used to work, so I'm baffled. Usually it's
the other way around - a COM port has changed and I use K3 Utility to
discover which new port number to specify in the logger. But today the
logger connects and Utility doesn't.

If I eliminate the RemoteRig boxes and associated K3 Remote firmware, both
K3 Utility and the logger connect to the local K3 just fine from the
virtual Windows OS. I'm running FW Rev 5.55 on both K3's.

Any ideas?

Thanks,

/Rick N6XI

--

Rick Tavan
Truckee, CA
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Re: [Elecraft] Morse reader on KX2

[Nr4c]

I'm no expert but the reader is probably reading exactly what you send. I will 
frequently see my K3S read "NR4TR". It's all in the spacing and we know what we 
mean to send but the reader has no idea until it hears it. And, it has no 
"context" to assist it. 

Sent from my iPhone
...nr4c. bill


> On Jan 2, 2017, at 3:59 PM, n...@zianet.com wrote:
> 
> Emory Schley writes:
> 
>> Whenever I use the built-in keyer to send my callsign, the screen readout 
>> interprets my call as N4LEG instead of the correct N4LP.
> 
> I had the same problem when I first got my KX2.  The CW weighting was set for 
> 1.0; I changed it to 1.25 for a better dit-to-dah ratio and my sent CW became 
> much more readable.  Don't know if that addresses your problem, but worth 
> checking.  The reader does seem to slice certain letters into two (like F 
> into I N) if you're not real snappy :-)
> 
> 72, Paul NA5N
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[Elecraft] K3 Utility Not Connecting (Virtual Windows Environment may be a factor)

[Rick Tavan]

Looking for a sounding board here to jump-start my brain. I run Windows 7
under VMware Fusion on a Macbook Pro. Although it's a difficult environment
to maintain, most Windows software works well. I run RemoteRig boxes to
connect a local K3 acting as a control head to a remote K3. The RemoteRig
box presents the remote K3's serial port as a local port (COM12 today) and
both Writelog and N1MM+ can connect to it and control the remote radio.
Right now, however, K3 Utility and K3 Memory Editor are not connecting to
it. (Yes, I terminated the loggers before trying the Elecraft apps.) I'm
pretty sure this configuration used to work, so I'm baffled. Usually it's
the other way around - a COM port has changed and I use K3 Utility to
discover which new port number to specify in the logger. But today the
logger connects and Utility doesn't.

If I eliminate the RemoteRig boxes and associated K3 Remote firmware, both
K3 Utility and the logger connect to the local K3 just fine from the
virtual Windows OS. I'm running FW Rev 5.55 on both K3's.

Any ideas?

Thanks,

/Rick N6XI

-- 

Rick Tavan
Truckee, CA
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Re: [Elecraft] Audio artifacts in DATA A mode with KX3

[Harry Yingst via Elecraft]

Back when I was playing with SDR's I would notice the same thing (Deep nulls)
Sometimes resetting the software (or turning the rig on and off again) would 
cure it.

Something to try




  From: Nicklas Johnson 
 To: elecraft  
 Sent: Monday, January 2, 2017 6:54 PM
 Subject: Re: [Elecraft] Audio artifacts in DATA A mode with KX3
   
Jörg in the Elecraft KX3 group on Facebook had an interesting observation:
with WJST's waterfall, if the "flatten" mode is on, it produces some
unusual artifacts in the presence of sharp spectrum drop-offs, and indeed
if I turn off the "flatten" feature and manually set the zero point for the
waterfall, the artifacts go away.

It's still an open question as to why the data-a mode has a steep drop-off
at 400Hz when the PBT settings on the rig would seem to indicate otherwise,
and the same drop-off isn't there in USB mode.

I see searching on "400 Hz" that GM4JJJ had the same question here on the
last back in July 2015, but never really got an answer.  I basically have
the same question as this one:
https://www.mail-archive.com/elecraft@mailman.qth.net/msg183837.html

  Nick


On 2 January 2017 at 12:06, Nicklas Johnson  wrote:

> I'm seeing some unexpected audio artifacts when using DATA A mode with the
> latest production firmware on my KX3, on all bands.  This is something I
> observe when the PBT BW is set all the way wide (4KHz) and FC is centered.
>
> In DATA mode, there's an audio drop-off between 200 and 325 Hz, with an
> almost completely dead audio "hole" between 250 and 300 Hz.  Then there's
> some additional noise between 350 and 500 Hz.
>
> If I switch to USB mode (with no EQ or audio effects applied, naturally),
> all of these artifacts go away, and it's perfectly smooth across the
> spectrum.  No drop-off, no noise.
>
> Pictures of the waterfalls for comparison here: http://imgur.com/a/AjHu4
>
> Am I doing something wrong, or is there something I should check?  I've
> taken the usual steps, but it's plausible I've missed something.
>
> ​  Nick​
>
> --
> *N6OL*
> Saying something doesn't make it true.  Belief in something doesn't make
> it real. And if you have to lie to support a position, that position is not
> worth supporting.
>



-- 
*N6OL*
Saying something doesn't make it true.  Belief in something doesn't make it
real. And if you have to lie to support a position, that position is not
worth supporting.
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Re: [Elecraft] Audio artifacts in DATA A mode with KX3

[Nicklas Johnson]

Jörg in the Elecraft KX3 group on Facebook had an interesting observation:
with WJST's waterfall, if the "flatten" mode is on, it produces some
unusual artifacts in the presence of sharp spectrum drop-offs, and indeed
if I turn off the "flatten" feature and manually set the zero point for the
waterfall, the artifacts go away.

It's still an open question as to why the data-a mode has a steep drop-off
at 400Hz when the PBT settings on the rig would seem to indicate otherwise,
and the same drop-off isn't there in USB mode.

I see searching on "400 Hz" that GM4JJJ had the same question here on the
last back in July 2015, but never really got an answer.  I basically have
the same question as this one:
https://www.mail-archive.com/elecraft@mailman.qth.net/msg183837.html

   Nick


On 2 January 2017 at 12:06, Nicklas Johnson  wrote:

> I'm seeing some unexpected audio artifacts when using DATA A mode with the
> latest production firmware on my KX3, on all bands.  This is something I
> observe when the PBT BW is set all the way wide (4KHz) and FC is centered.
>
> In DATA mode, there's an audio drop-off between 200 and 325 Hz, with an
> almost completely dead audio "hole" between 250 and 300 Hz.  Then there's
> some additional noise between 350 and 500 Hz.
>
> If I switch to USB mode (with no EQ or audio effects applied, naturally),
> all of these artifacts go away, and it's perfectly smooth across the
> spectrum.  No drop-off, no noise.
>
> Pictures of the waterfalls for comparison here: http://imgur.com/a/AjHu4
>
> Am I doing something wrong, or is there something I should check?  I've
> taken the usual steps, but it's plausible I've missed something.
>
> ​   Nick​
>
> --
> *N6OL*
> Saying something doesn't make it true.  Belief in something doesn't make
> it real. And if you have to lie to support a position, that position is not
> worth supporting.
>



-- 
*N6OL*
Saying something doesn't make it true.  Belief in something doesn't make it
real. And if you have to lie to support a position, that position is not
worth supporting.
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Re: [Elecraft] KX3/KX2 voltage display

[Marc Veeneman via Elecraft]

> On Jan 2, 2017, at 2:04 PM, E T  wrote:
> 
> I just switched over to a different one (Black & Decker) that keeps the SLA 
> closer to 13.8.  Of course when I use my PowerWerx supply I can set that to 
> anything… :-)

But do not turn on the PowerWerx while the KX3 is running or you'll receive a 
nasty surprise.  There's a strong voltage spike from the PowerWerx that 
overwhelms the KX3 and the KX3, in response, shuts down.   If you plan to use 
the SLA as backup while mains power fails, be sure to turn off the PowerWerx 
before mains power returns.

73,
Marc W8SDG



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Re: [Elecraft] KXPA100 with PX3

[Nr4c]

You may just need more volts at the amp. For full power from KXP100 you'll need 
at least 14 to 14.5 volts at the amp end of the cable. From battery power, use 
two short cables of at least  AWG 12 or 14 wire. 

Sent from my iPhone
...nr4c. bill


> On Jan 2, 2017, at 12:32 PM, Don Wilhelm  wrote:
> 
> Ray,
> 
> Have you tried running the TX Gain Calibration on the KX3?
> It may be that the KX3 wattmeter is not well calibrated.
> 
> If you do the TX Gain Calibration manually, it must be done on each band.
> The KX3 Utility automates the process.
> 
> 73,
> Don W3FPR
> 
>> On 1/2/2017 11:55 AM, rsoif...@aol.com wrote:
>> Don and others,
>> 
>> The good news is that you were right: the RJ-45 connectors in the control 
>> cable were not making good contact.  I fixed that and PA ON operation of the 
>> KXPA100 is now working.
>> 
>> The bad news, however, is that in Basic operation with PA OFF, the 
>> KX3/KXPA100 puts out full power, but the most I can get out of it with PA ON 
>> is 50-60 watts.  The attenuator is set for OUT/AUTO and there is no more 
>> than 1 or 2 watts reflected power.
>> 
>> 
> 
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[Elecraft] 4O3A Coaxial Transfer Switch

[Ken Widelitz]

http://www.4o3a.com/index.php/products/antenna-switchers/reversable-switch-3
000/ 289EU

 

Controller Module 99EU

 

The 4O3A products are very well made.

 

73, Ken, K6LA / VY2TT

 

 

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Re: [Elecraft] KX3 Gain Calibration - Failing

[KENT TRIMBLE]

Aaron . . .

In addition to what Don says, I'd recommend setting the KX3's POWER 
control to the maximum before running the TX GAIN procedure.  I've had 
it fail when I had the output set at 5 watts.  Running it to maximum 
would then result in a successful calibration.


By the way, I always do a TX GAIN calibration after each firmware 
upgrade, although I'm not sure it's necessary.


73,

Kent  K9ZTV




On 1/2/2017 1:37 PM, Don Wilhelm wrote:

Aaron,

The most common reason for a failure in the KX3 TX Gain Calibration is 
a dummy load that does not present a good 50 ohm non-reactive load.

You can check your dummy load at 28 or 50 MHz with an antenna analyzer.

You apparently did not disconnect the KXPA100 when running the KX3 TX 
Gain Cal procedure.  Remove the KXPA100 and run with the KX3 and the 
dummy load only.
If you do the manual procedure in the KX3 manual, it should be good 
for all bands where it passed.  If you used KX3 Utility, it quits on 
the first band that produces an error.


After you get a successful TX Gain Calibration with the KX3 only, then 
do the TX Gain Cal for the KXPA100 as indicated in Appendix B of the 
KXPA100 manual.  Your dummy load must be rated for 75 watts or greater.


73,
Don W3FPR

On 1/2/2017 1:52 PM, Aaron Marroquin wrote:

I have been a lurker on the reflector for almost a year and this is my
first email to request guidance.

I have a KX3 and a KXPA100 and with the recent thread about running a
calibration I figured I needed to do likewise. The amp is a new 
addition to
my setup so I am still learning the details. Anyway, while running 
the KX3

Utility I get a failure during the calibration process (the output is
below). The amp is in bypass mode and I am using an MFJ-260C for the 
dummy

load attached to ANT1.


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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7996 / Virus Database: 4749/13692 - Release Date: 
01/02/17





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Re: [Elecraft] P3 macros on the KPod?

[Charles R.Tropp via Elecraft]

Thanks, Fred.  73, Charles N2SO
Treasurer, Quarter Century Wireless Association, Inc. http://QCWA.org 

On Monday, January 2, 2017 2:44 PM, "Cady, Fred"  wrote:
 

 #yiv5980068783 #yiv5980068783 -- P 
{margin-top:0;margin-bottom:0;}#yiv5980068783 
Unfortunately, you cannot have P3 commands stored in a K3 macro.  You can have 
K3 commands stored in a P3 macro, though.  So to do what you would like, you 
need to store the macro one of the 50 P3 macro locations and then assign it to 
one of the P3 function keys.The reason it works from the Utility is that the 
serial communication path to the K3 is through the P3 and so the P3 acts on its 
commands.
(And just to be a bit pedantic, I think it is better to not call K3 macros Kpod 
macros.  The Kpod doesn't store any macros.  It just provides an additional 16 
function keys that activate the 16 macro storage locations in the K3.)


Cheers,Fred KE7X
For all KE7X Elecraft books, see www.ke7xcom
From: Elecraft  on behalf of Charles R.Tropp 
via Elecraft 
Sent: Monday, January 2, 2017 11:51 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] P3 macros on the KPod? Hi,

I want to program the following Split+1 macro in myKPod and having trouble with 
thefollowing:

SWT13;SWT13;FT1;UPB4;DV0;SB1;RT0;XT0;LK1;BW0010;BW$0270;#SPN80;#RCF+004000;

Although it works fine in the K3 Utility Tester, itdoes not work in the KPod. 
The problem seems to be the two P3 macros which donot work. I suspect the KPod 
does not work with P3 macros. Is that the case?


 
 73, Charles N2SO
Treasurer, Quarter Century Wireless Association, Inc. http://QCWA.org
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Re: [Elecraft] Coaxial Transfer Switches

[Jim Brown]

On Mon,1/2/2017 12:51 PM, Dauer, Edward wrote:

  Anyone found something DPDT, store-bought and acceptable, in a moderate price 
range?


I think I posted yesterday that the Alpha Delta switches seem properly 
done, and should provide good isolation. They make a 2x1 and a 4x1. You 
would need two of them. I own several that I've used up to 440 MHz. I've 
not measured them, but I've also not noticed any issues.


73, Jim K9YC

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Re: [Elecraft] Morse reader on KX2

[na5n]

Emory Schley writes:

Whenever I use the built-in keyer to send my callsign, the  
screen readout interprets my call as N4LEG instead of the correct N4LP.


I had the same problem when I first got my KX2.  The CW weighting was set  
for 1.0; I changed it to 1.25 for a better dit-to-dah ratio and my sent CW  
became much more readable.  Don't know if that addresses your problem, but  
worth checking.  The reader does seem to slice certain letters into two  
(like F into I N) if you're not real snappy :-)


72, Paul NA5N
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[Elecraft] Coaxial Transfer Switches

[Dauer, Edward]

Just did some shopping on the Internet and found transfer switches by Teledyne 
starting at about $275.  Did not find any Birds, used or otherwise, and the 
Transcos I found were in the $800 range.  I confess this was a very quick 
search.

Interesting that many if not most of them require 28 VDC.  Anyone know why?  Is 
that a marine application?  These seem too heavy for aviation.  

The subject is of interest because I have two MFJ SPDT switches, neither of 
which I particularly like.  One of them works fine if the switch knob is 
toggled back and forth a few times.  And that’s the one that’s been indoors all 
its life.  Anyone found something DPDT, store-bought and acceptable, in a 
moderate price range?

Ted, KN1CBR

--

Message: 22
Date: Mon, 2 Jan 2017 17:17:46 +
From: Richard Fjeld 
To: "elecraft@mailman.qth.net" 
Subject: Re: [Elecraft] {OT} - Variation on use of a coaxial switch
(stan levandowski)
Message-ID:



Content-Type: text/plain; charset="Windows-1252"

This sounds the same, and I made it to protect the front end of each 
radio by switching the radio not being tested to my dummy load in case 
one of the radios should transmit. I intended my switch for receive 
comparisons.  I am surprised the commercial switches can handle a 
kilowatt and provide adequate isolation.  I wouldn't want to use that 
kind of power with the switch I made.

I didn't know about the switches you mention.  I thought there should be 
a need for them, so I called MFJ.  I like to protect my equipment. I 
know guys who don't think this way. Maybe MFJ didn't sell any and 
discontinued them. At the time, I thought they described them rather 
vaguely, missing the whole purpose.  Maybe I haven't found them on their 
website now.

Dick, n0ce


On 1/2/2017 7:06 AM, Charlie T, K3ICH wrote:
> Several companies (Bird, Transco) make what you describe.  It is a four
> terminal coax relay called a "Transfer Switch" that for example, connects
> any two antennas to any two radios, but never at the same time.  In other
> words, radio A connects to antenna 1, and at the same time, radio B 
connects
> to antenna 2.  Activating the switch ( either mechanical or electrically
> activated) changes the condition for A to 2 and B to 1.  Most are good 
for a
> kilowatt well up into the UHF ranges.   For HF, I made one using a heavy
> DPDT relay.
>
> 73 Charlie k3ICH
>
>


--

Message: 23
Date: Mon, 2 Jan 2017 12:32:49 -0500
From: Don Wilhelm 
To: rsoif...@aol.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KXPA100 with PX3
Message-ID: <202d1e55-1ae8-03b1-c271-f99c1bfb2...@embarqmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed

Ray,

Have you tried running the TX Gain Calibration on the KX3?
It may be that the KX3 wattmeter is not well calibrated.

If you do the TX Gain Calibration manually, it must be done on each band.
The KX3 Utility automates the process.

73,
Don W3FPR

On 1/2/2017 11:55 AM, rsoif...@aol.com wrote:
> Don and others,
>
> The good news is that you were right: the RJ-45 connectors in the 
> control cable were not making good contact.  I fixed that and PA ON 
> operation of the KXPA100 is now working.
>
> The bad news, however, is that in Basic operation with PA OFF, the 
> KX3/KXPA100 puts out full power, but the most I can get out of it with 
> PA ON is 50-60 watts.  The attenuator is set for OUT/AUTO and there is 
> no more than 1 or 2 watts reflected power.
>
>



--

Message: 24
Date: Mon, 2 Jan 2017 12:42:49 -0500
From: rsoif...@aol.com
To: donw...@embarqmail.com
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KXPA100 with PX3
Message-ID: <1596046c9bd-5f8-28...@webprd-m06.mail.aol.com>
Content-Type: text/plain; charset=utf-8

Hi Don,


I tried that but an external wattmeter confirmed the KXPA100 forward and 
reflected power readings.  Something in the KX3 is holding down the power 
output when PA is ON, but not when PA is off.


73 Ray W2RS



-Original Message-
From: Don Wilhelm 
To: rsoifer1 
Cc: elecraft 
Sent: Mon, Jan 2, 2017 10:33 am
Subject: Re: [Elecraft] KXPA100 with PX3

Ray,

Have you tried running the TX Gain Calibration on the KX3?
It may be that the KX3 wattmeter is not well calibrated.

If you do the 

[Elecraft] Audio artifacts in DATA A mode with KX3

[Nicklas Johnson]

I'm seeing some unexpected audio artifacts when using DATA A mode with the
latest production firmware on my KX3, on all bands.  This is something I
observe when the PBT BW is set all the way wide (4KHz) and FC is centered.

In DATA mode, there's an audio drop-off between 200 and 325 Hz, with an
almost completely dead audio "hole" between 250 and 300 Hz.  Then there's
some additional noise between 350 and 500 Hz.

If I switch to USB mode (with no EQ or audio effects applied, naturally),
all of these artifacts go away, and it's perfectly smooth across the
spectrum.  No drop-off, no noise.

Pictures of the waterfalls for comparison here: http://imgur.com/a/AjHu4

Am I doing something wrong, or is there something I should check?  I've
taken the usual steps, but it's plausible I've missed something.

​   Nick​

-- 
*N6OL*
Saying something doesn't make it true.  Belief in something doesn't make it
real. And if you have to lie to support a position, that position is not
worth supporting.
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[Elecraft] Mint, 4 bank K1

[Bob Brown via Elecraft]

Mint K1; 40, 30, 20 & 17 meters (approximately 90 kHz coverage/band except for 
30 meters), internal tuner, backlight, portable stand, serial no. 3073.  Not 
built by me, but aligned by Don, W3FPR, after my initial purchase (will provide 
paperwork).  All manuals, etc.  $465, shipped.  Bob Brown, N1CVX
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Re: [Elecraft] K-Pod data wiring

[Wes Stewart]

You are correct.  The worry is that a wire dangling on that pin will upset the 
controller if RF or other noise is induced.  My informant had the bright idea to 
use the existing cable to get out of the radio and dangle it somewhere to the 
rear and then use an RJ12 female-to-female connector and a longer standard RJ12 
cable to the K-Pod.  Not elegant but effective.  Parts are on order.



On 1/2/2017 10:04 AM, Harry Yingst wrote:
As far as I can tell Pin One is connected to the reset pin on the CPU 
(Micro-controller)


I would assume it's the same on the K-pod as well.


The connector on the K3 appears to be a Programming connector for the main 
Micro-controller



You should be able to take an off the shelf 6 pin cable and carefully cut 
through the outer cable covering over pin 1.


Then cut a small section out off the inner Pin 1 wire and put a wrap of black 
tape over the cable to protect it.



I would think as long as the cut is close to the radio end it would be 
functionally the same as cutting it right at the connector.



I would thing the two main concerns are not having them connected and getting 
stray RF into pin 1 (hence cutting close to the radio end)








*From:* Wes Stewart 
*To:* Elecraft Reflector 
*Sent:* Monday, January 2, 2017 11:41 AM
*Subject:* [Elecraft] K-Pod data wiring

When my better half asked me for gift suggestions and I mentioned a K-Pod she
thought that was a great idea since I've aggravated an old rotator cuff injury
by constantly using my right hand tuning my K3 and running a mouse. I've since
trained my left hand to run the mouse and thought I could run the K-Pod the 
same.

The problem is the supplied data cable is too short and too stiff.  (IMHO there
are other deficiencies but those might be the subject of another message)
Unfortunately, one is left to manufacture a cable, since there is an
admonishment in the manual to NOT have a connection to Pin 1 (they don't want to
rile up Jim Brown I guess).  The puzzling part is that they warn that if a
standard RJ12 cable is modified (not sure how one would do this) to break the
Pin 1 connection, the end with the disconnect should connect to the K3.  So I
question: 1) Why should it matter?  2) If Pin 1 is unused why is it connected to
something inside the K-Pod?

Wes  N7WS
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Re: [Elecraft] KPA500 with WSJT digital modes

[Jim Miller]

My EME QSO with JR6EXN was on 50.187 on Dec 21, 2015.

jim ab3cv

On Mon, Jan 2, 2017 at 2:51 PM, Mike Hagele  wrote:

> What frequencies have you been using on 6 meters?
>
> Sent from my iPhone
>
> > On Jan 2, 2017, at 10:01 AM, Jim Miller  wrote:
> >
> > I've used mine for JT65a 6m EME which transmits full power for 50 seconds
> > with no problems at all.
> >
> > jim
> >
> >> On Mon, Jan 2, 2017 at 11:42 AM, Stew  wrote:
> >>
> >> I am considering using a KPA500 on 6 meter meteor scatter. The MSK144
> >> digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds.
> >> Can anyone share their experience using this amp in this mode? Is the
> >> KPA500 up to the task at full 500 watts output on six meters?
> >>
> >> Thanks & HNY
> >>
> >> Stew ke4yh
> >>
> >>
> >> __
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Re: [Elecraft] {OT} - Variation on use of a coaxial switch

[Edward R Cole]

I use a Dow Key 412-2301 Transfer Relay to select my 6m kilowatt amp 
or bypass it to the antenna.  It is powered with 26vdc and has 
N-connectors.  Don't recall isolation figures but think they were in 
60-dB range.  One could use this relay for TR with a kW amp, or to 
connect to two radios to two antennas or loads.  Its wired like a 
DPDT with internal crossover.  It cost me $40 used.


BTW if you have some of these surplus 24-28vdc relays, I sell a 
regulated 5A power supply that is adjustable to 28v:

http://www.kl7uw.com/fs.htm

73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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Re: [Elecraft] KPA500 with WSJT digital modes

[Mike Hagele via Elecraft]

What frequencies have you been using on 6 meters?

Sent from my iPhone

> On Jan 2, 2017, at 10:01 AM, Jim Miller  wrote:
> 
> I've used mine for JT65a 6m EME which transmits full power for 50 seconds
> with no problems at all.
> 
> jim
> 
>> On Mon, Jan 2, 2017 at 11:42 AM, Stew  wrote:
>> 
>> I am considering using a KPA500 on 6 meter meteor scatter. The MSK144
>> digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds.
>> Can anyone share their experience using this amp in this mode? Is the
>> KPA500 up to the task at full 500 watts output on six meters?
>> 
>> Thanks & HNY
>> 
>> Stew ke4yh
>> 
>> 
>> __
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Re: [Elecraft] KPA500 with WSJT digital modes

[Cady, Fred]

Ditto for FSK ms on 6 m.  4 el yagi.



From: Elecraft  on behalf of Jim Miller 

Sent: Monday, January 2, 2017 11:01 AM
To: Stew
Cc: Elecraft Reflector
Subject: Re: [Elecraft] KPA500 with WSJT digital modes

I've used mine for JT65a 6m EME which transmits full power for 50 seconds
with no problems at all.

jim

On Mon, Jan 2, 2017 at 11:42 AM, Stew  wrote:

> I am considering using a KPA500 on 6 meter meteor scatter. The MSK144
> digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds.
> Can anyone share their experience using this amp in this mode? Is the
> KPA500 up to the task at full 500 watts output on six meters?
>
> Thanks & HNY
>
> Stew ke4yh
>
>
> __
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Re: [Elecraft] P3 macros on the KPod?

[Cady, Fred]

Unfortunately, you cannot have P3 commands stored in a K3 macro.  You can have 
K3 commands stored in a P3 macro, though.  So to do what you would like, you 
need to store the macro one of the 50 P3 macro locations and then assign it to 
one of the P3 function keys.

The reason it works from the Utility is that the serial communication path to 
the K3 is through the P3 and so the P3 acts on its commands.


(And just to be a bit pedantic, I think it is better to not call K3 macros Kpod 
macros.  The Kpod doesn't store any macros.  It just provides an additional 16 
function keys that activate the 16 macro storage locations in the K3.)




Cheers,

Fred KE7X


For all KE7X Elecraft books, see www.ke7xcom



From: Elecraft  on behalf of Charles R.Tropp 
via Elecraft 
Sent: Monday, January 2, 2017 11:51 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] P3 macros on the KPod?

Hi,

I want to program the following Split+1 macro in myKPod and having trouble with 
thefollowing:

SWT13;SWT13;FT1;UPB4;DV0;SB1;RT0;XT0;LK1;BW0010;BW$0270;#SPN80;#RCF+004000;

Although it works fine in the K3 Utility Tester, itdoes not work in the KPod. 
The problem seems to be the two P3 macros which donot work. I suspect the KPod 
does not work with P3 macros. Is that the case?



 73, Charles N2SO
Treasurer, Quarter Century Wireless Association, Inc. http://QCWA.org
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Re: [Elecraft] Morse reader on KX2

[Don Wilhelm]

Emory,

I suspect a little too much time between the first dit of the "P" and 
the following dah.

at slower speed, the element spacing is probably OK.

73,
Don W3FPR

On 1/2/2017 1:48 PM, Emory Schley wrote:

I'm having a bit of a problem with my KX2, not a serious one, but a confusing 
one. Whenever I use the built-in keyer to send my callsign, the screen readout 
interprets my call as N4LEG instead of the correct N4LP. This happens at 13 
wpm, but if I change the speed to 12 wpm, then my callsign is interpreted 
correctly. I don't think it's my keying because the internal keyer handles 
that. Does anyone else experience a problem like this... and is there a 
solution? Thanks

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Re: [Elecraft] KX3 Gain Calibration - Failing

[Don Wilhelm]

Aaron,

The most common reason for a failure in the KX3 TX Gain Calibration is a 
dummy load that does not present a good 50 ohm non-reactive load.

You can check your dummy load at 28 or 50 MHz with an antenna analyzer.

You apparently did not disconnect the KXPA100 when running the KX3 TX 
Gain Cal procedure.  Remove the KXPA100 and run with the KX3 and the 
dummy load only.
If you do the manual procedure in the KX3 manual, it should be good for 
all bands where it passed.  If you used KX3 Utility, it quits on the 
first band that produces an error.


After you get a successful TX Gain Calibration with the KX3 only, then 
do the TX Gain Cal for the KXPA100 as indicated in Appendix B of the 
KXPA100 manual.  Your dummy load must be rated for 75 watts or greater.


73,
Don W3FPR

On 1/2/2017 1:52 PM, Aaron Marroquin wrote:

I have been a lurker on the reflector for almost a year and this is my
first email to request guidance.

I have a KX3 and a KXPA100 and with the recent thread about running a
calibration I figured I needed to do likewise. The amp is a new addition to
my setup so I am still learning the details. Anyway, while running the KX3
Utility I get a failure during the calibration process (the output is
below). The amp is in bypass mode and I am using an MFJ-260C for the dummy
load attached to ANT1.


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[Elecraft] EZNEC Help

[Fred Jensen]

"Terry" who wanted help with EZNEC please reply directly to me.  Desktop 
has been performing very poorly and seems to have finally quit, with 
your email and address on it.


73,

Fred K6DGW
Sparks NV
Washoe County DM09dn


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Re: [Elecraft] KX3/KX2 voltage display

[E T]

Ok, thanks, that makes sense.  One of my SLA maintenance chargers was only 
keeping my external battery around 12.7V, so once in a while I’d get the LO 
SUPPLY indicator when charging the internal batteries.  I just switched over to 
a different one (Black & Decker) that keeps the SLA closer to 13.8.  Of course 
when I use my PowerWerx supply I can set that to anything… :-)

  Thanks and 73,
  Erik Tkal  -  W1QED

On Jan 2, 2017, at 12:59 PM, Lyle Johnson  wrote:

Hello Erik!

Yes, it is expected.  There is low-drop diode in series with incoming power to 
protect the radio circuitry from reversed polarity at the power connector.  The 
typical voltage drop is about 0.3V at nominal current.  The internal "12V" 
supply voltage being reported is after the diode's voltage drop.

Both radios share this characteristic.

73,

Lyle KK7P


On 1/2/17 10:46 AM, E T wrote:
> When using the special VFO B display to show the supply voltage, both my KX3 
> and KX2 disagree with the rest of my equipment.  The radios consistently are 
> 0.2V - 0.4V lower than my inline meters and my Fluke when measured at my 
> RigRunner distribution block and at the end of a cable (e.g. if I disconnect 
> my PX3).  I don’t see any way to calibrate this, is this expected?
> 
>   Thanks and 73,
>   Erik Tkal  -  W1QED

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Re: [Elecraft] KPA500 with WSJT digital modes

[Jim Miller]

Completed with a JR6. 

6M7. AZ only

Obviously he was doing the heavy lifting. 

Jim ab3cv

On Jan 2, 2017, at 1:50 PM, Josh  wrote:

Successfully? What antenna? Your call?

73
Josh W6XU

Sent from my mobile device

> On Jan 2, 2017, at 10:01 AM, Jim Miller  wrote:
> 
> I've used mine for JT65a 6m EME which transmits full power for 50 seconds
> with no problems at all.
> 
> jim
> 
>> On Mon, Jan 2, 2017 at 11:42 AM, Stew  wrote:
>> 
>> I am considering using a KPA500 on 6 meter meteor scatter. The MSK144
>> digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds.
>> Can anyone share their experience using this amp in this mode? Is the
>> KPA500 up to the task at full 500 watts output on six meters?
>> 
>> Thanks & HNY
>> 
>> Stew ke4yh
>> 
>> 
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[Elecraft] KX3 Gain Calibration - Failing

[Aaron Marroquin]

I have been a lurker on the reflector for almost a year and this is my
first email to request guidance.

I have a KX3 and a KXPA100 and with the recent thread about running a
calibration I figured I needed to do likewise. The amp is a new addition to
my setup so I am still learning the details. Anyway, while running the KX3
Utility I get a failure during the calibration process (the output is
below). The amp is in bypass mode and I am using an MFJ-260C for the dummy
load attached to ANT1.

Is the failure only on 29.000Mhz or does the whole process fail if any of
the calibrations fail? Anyway to continue?

Also, could the temperature of the dummy load impact the test, that is if I
run the test back to back several times, as the dummy load heats up will
this impact the process (I am thinking yes)? Should I cool the dummy load
before testing?

Thank you in advance.

Aaron KK6ZDB

/KX3 Utility Output Below\

Elecraft KX3 Utility Revision 1.16.2.12
OS Version 10.0 Build 14393
KX3 MCU revision 02.38. RS-232 speed 38400 bit/s
Calibrating at 1.900 MHz
Calibrating at 3.750 MHz
Calibrating at 5.336 MHz
Calibrating at 7.150 MHz
Calibrating at 10.125 MHz
Calibrating at 14.200 MHz
Calibrating at 18.110 MHz
Calibrating at 21.200 MHz
Calibrating at 24.930 MHz
Calibrating at 29.000 MHz
Power did not settle
Sample values:

  5.9 W ;
  5.9 W ;
  6.0 W ;
  5.9 W ;
Elapsed time: 93 seconds
Tx Gain calibration failed because power readings did not converge to a
consistent value
Calibration failed
Elapsed time: 93 seconds
-- 

Thank you,

Aaron M. Marroquin
(707) 540-4446
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[Elecraft] P3 macros on the KPod?

[Charles R.Tropp via Elecraft]

Hi,

I want to program the following Split+1 macro in myKPod and having trouble with 
thefollowing:

SWT13;SWT13;FT1;UPB4;DV0;SB1;RT0;XT0;LK1;BW0010;BW$0270;#SPN80;#RCF+004000;

Although it works fine in the K3 Utility Tester, itdoes not work in the KPod. 
The problem seems to be the two P3 macros which donot work. I suspect the KPod 
does not work with P3 macros. Is that the case? 


 
 73, Charles N2SO
Treasurer, Quarter Century Wireless Association, Inc. http://QCWA.org
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Re: [Elecraft] KPA500 with WSJT digital modes

[Josh]

Successfully? What antenna? Your call?

73
Josh W6XU

Sent from my mobile device

> On Jan 2, 2017, at 10:01 AM, Jim Miller  wrote:
> 
> I've used mine for JT65a 6m EME which transmits full power for 50 seconds
> with no problems at all.
> 
> jim
> 
>> On Mon, Jan 2, 2017 at 11:42 AM, Stew  wrote:
>> 
>> I am considering using a KPA500 on 6 meter meteor scatter. The MSK144
>> digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds.
>> Can anyone share their experience using this amp in this mode? Is the
>> KPA500 up to the task at full 500 watts output on six meters?
>> 
>> Thanks & HNY
>> 
>> Stew ke4yh
>> 
>> 
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Re: [Elecraft] KXPA100 with PX3

[Don Wilhelm]

Ray,

Did you do the basic KX3 Power Calibration as well as the Power 
Calibration with the KXPA100?  See Appendix B of the KXPA100 manual.


The external wattmeter has nothing to do with it, the power is measured 
internally by the KX3 and KXPA100 circuits.


You will need a good 50 ohm dummy load that is flat through 6 meters.

73,
Don W3FPR

On 1/2/2017 12:42 PM, rsoif...@aol.com wrote:

Hi Don,

I tried that but an external wattmeter confirmed the KXPA100 forward 
and reflected power readings.  Something in the KX3 is holding down 
the power output when PA is ON, but not when PA is off.


73 Ray W2RS


-Original Message-
From: Don Wilhelm 
To: rsoifer1 
Cc: elecraft 
Sent: Mon, Jan 2, 2017 10:33 am
Subject: Re: [Elecraft] KXPA100 with PX3

Ray,

Have you tried running the TX Gain Calibration on the KX3?
It may be that the KX3 wattmeter is not well calibrated.

If you do the TX Gain Calibration manually, it must be done on each band.
The KX3 Utility automates the process.

73,
Don W3FPR

On 1/2/2017 11:55 AM, rsoif...@aol.com  wrote:
> Don and others,
>
> The good news is that you were right: the RJ-45 connectors in the
> control cable were not making good contact. I fixed that and PA ON
> operation of the KXPA100 is now working.
>
> The bad news, however, is that in Basic operation with PA OFF, the
> KX3/KXPA100 puts out full power, but the most I can get out of it with
> PA ON is 50-60 watts. The attenuator is set for OUT/AUTO and there is
> no more than 1 or 2 watts reflected power.
>
>



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[Elecraft] Morse reader on KX2

[Emory Schley]

I'm having a bit of a problem with my KX2, not a serious one, but a confusing 
one. Whenever I use the built-in keyer to send my callsign, the screen readout 
interprets my call as N4LEG instead of the correct N4LP. This happens at 13 
wpm, but if I change the speed to 12 wpm, then my callsign is interpreted 
correctly. I don't think it's my keying because the internal keyer handles 
that. Does anyone else experience a problem like this... and is there a 
solution? Thanks
 
Emory Schley
N4LP
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Re: [Elecraft] KX3/KX2 voltage display

[Don Wilhelm]

Erik,

The KX3 and KX2 (and K3, K3S and K2) display the voltage AFTER the 
reverse polarity protection diode.  That is the actual operating voltage 
of the transceiver.
The Shottky diode typically drops about 0.3 volts, so the internal 
measurement will be about 0.3 volts lower than a voltage measurement 
external to the transceiver.


73,
Don W3FPR

On 1/2/2017 12:46 PM, E T wrote:

When using the special VFO B display to show the supply voltage, both my KX3 
and KX2 disagree with the rest of my equipment.  The radios consistently are 
0.2V - 0.4V lower than my inline meters and my Fluke when measured at my 
RigRunner distribution block and at the end of a cable (e.g. if I disconnect my 
PX3).  I don’t see any way to calibrate this, is this expected?

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[Elecraft] KX2 with KPA500 and KAT500

[Len Chesler home email]

Happy new year to all!  I am curious to know if anyone on the reflector has 
experienced this issue.  I occasionally like to use my KX2 at QRO power.  I 
have the ACC output of the KX2 interfaced to a KPA500 which is interconnected 
to a KAT500 antenna tuner.  When the tuner is not powered, the KX2 and 
amplifier work perfectly with over 150W output.

When I power up the KAT500 and switch the amp to “oper” mode, the receiver in 
the KX2 desenses rendering the combination inoperable.  When switching back to 
“STBY”, the receiver is back to operating normally.  Turning off the power to 
the tuner allows normal operation.  Not sure what is happening. Any 
suggestions?  Tnx. Len
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Re: [Elecraft] KXPA100

[Bob N3MNT]

Do a power out calibration,  Relatively easy if you have a good dummy load.




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Re: [Elecraft] KPA500 with WSJT digital modes

[Jim Brown]

On Mon,1/2/2017 8:42 AM, Stew wrote:
Is the KPA500 up to the task at full 500 watts output on six meters? 


Yes, sort of. According to the published spec for duty cycle, it is.  
I've use mine that way a lot for FSK441, JT65, and ISCAT, and it worked 
fine. But I managed to fry something running JT65 for a while in a VHF 
contest, and it was NOT repaired under warranty. I feel that it should 
have been.


73, Jim K9YC


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Re: [Elecraft] KPA500 with WSJT digital modes

[Jim Miller]

I've used mine for JT65a 6m EME which transmits full power for 50 seconds
with no problems at all.

jim

On Mon, Jan 2, 2017 at 11:42 AM, Stew  wrote:

> I am considering using a KPA500 on 6 meter meteor scatter. The MSK144
> digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds.
> Can anyone share their experience using this amp in this mode? Is the
> KPA500 up to the task at full 500 watts output on six meters?
>
> Thanks & HNY
>
> Stew ke4yh
>
>
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Re: [Elecraft] KX3/KX2 voltage display

[Lyle Johnson]

Hello Erik!

Yes, it is expected.  There is low-drop diode in series with incoming 
power to protect the radio circuitry from reversed polarity at the power 
connector.  The typical voltage drop is about 0.3V at nominal current.  
The internal "12V" supply voltage being reported is after the diode's 
voltage drop.


Both radios share this characteristic.

73,

Lyle KK7P


On 1/2/17 10:46 AM, E T wrote:

When using the special VFO B display to show the supply voltage, both my KX3 
and KX2 disagree with the rest of my equipment.  The radios consistently are 
0.2V - 0.4V lower than my inline meters and my Fluke when measured at my 
RigRunner distribution block and at the end of a cable (e.g. if I disconnect my 
PX3).  I don’t see any way to calibrate this, is this expected?

   Thanks and 73,
   Erik Tkal  -  W1QED


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[Elecraft] KXPA100

[Ray W2RS via Elecraft]

Bob,


It varies a bit from band to band but is within a range of 50 to 70 watts.


73 Ray W2RS
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[Elecraft] KX3/KX2 voltage display

[E T]

When using the special VFO B display to show the supply voltage, both my KX3 
and KX2 disagree with the rest of my equipment.  The radios consistently are 
0.2V - 0.4V lower than my inline meters and my Fluke when measured at my 
RigRunner distribution block and at the end of a cable (e.g. if I disconnect my 
PX3).  I don’t see any way to calibrate this, is this expected?

  Thanks and 73,
  Erik Tkal  -  W1QED

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Re: [Elecraft] KXPA100 with PX3

[Bob N3MNT]

What band are you seeing this reduced power out on.  It will most likely be
different for each band.



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Re: [Elecraft] KXPA100 with PX3

[Ray W2RS via Elecraft]

Hi Don,


I tried that but an external wattmeter confirmed the KXPA100 forward and 
reflected power readings.  Something in the KX3 is holding down the power 
output when PA is ON, but not when PA is off.


73 Ray W2RS



-Original Message-
From: Don Wilhelm 
To: rsoifer1 
Cc: elecraft 
Sent: Mon, Jan 2, 2017 10:33 am
Subject: Re: [Elecraft] KXPA100 with PX3

Ray,

Have you tried running the TX Gain Calibration on the KX3?
It may be that the KX3 wattmeter is not well calibrated.

If you do the TX Gain Calibration manually, it must be done on each band.
The KX3 Utility automates the process.

73,
Don W3FPR

On 1/2/2017 11:55 AM, rsoif...@aol.com wrote:
> Don and others,
>
> The good news is that you were right: the RJ-45 connectors in the 
> control cable were not making good contact.  I fixed that and PA ON 
> operation of the KXPA100 is now working.
>
> The bad news, however, is that in Basic operation with PA OFF, the 
> KX3/KXPA100 puts out full power, but the most I can get out of it with 
> PA ON is 50-60 watts.  The attenuator is set for OUT/AUTO and there is 
> no more than 1 or 2 watts reflected power.
>
>


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Re: [Elecraft] KXPA100 with PX3

[Don Wilhelm]

Ray,

Have you tried running the TX Gain Calibration on the KX3?
It may be that the KX3 wattmeter is not well calibrated.

If you do the TX Gain Calibration manually, it must be done on each band.
The KX3 Utility automates the process.

73,
Don W3FPR

On 1/2/2017 11:55 AM, rsoif...@aol.com wrote:

Don and others,

The good news is that you were right: the RJ-45 connectors in the 
control cable were not making good contact.  I fixed that and PA ON 
operation of the KXPA100 is now working.


The bad news, however, is that in Basic operation with PA OFF, the 
KX3/KXPA100 puts out full power, but the most I can get out of it with 
PA ON is 50-60 watts.  The attenuator is set for OUT/AUTO and there is 
no more than 1 or 2 watts reflected power.





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Re: [Elecraft] {OT} - Variation on use of a coaxial switch (stan levandowski)

[Richard Fjeld]

This sounds the same, and I made it to protect the front end of each 
radio by switching the radio not being tested to my dummy load in case 
one of the radios should transmit. I intended my switch for receive 
comparisons.  I am surprised the commercial switches can handle a 
kilowatt and provide adequate isolation.  I wouldn't want to use that 
kind of power with the switch I made.

I didn't know about the switches you mention.  I thought there should be 
a need for them, so I called MFJ.  I like to protect my equipment. I 
know guys who don't think this way. Maybe MFJ didn't sell any and 
discontinued them. At the time, I thought they described them rather 
vaguely, missing the whole purpose.  Maybe I haven't found them on their 
website now.

Dick, n0ce


On 1/2/2017 7:06 AM, Charlie T, K3ICH wrote:
> Several companies (Bird, Transco) make what you describe.  It is a four
> terminal coax relay called a "Transfer Switch" that for example, connects
> any two antennas to any two radios, but never at the same time.  In other
> words, radio A connects to antenna 1, and at the same time, radio B connects
> to antenna 2.  Activating the switch ( either mechanical or electrically
> activated) changes the condition for A to 2 and B to 1.  Most are good for a
> kilowatt well up into the UHF ranges.   For HF, I made one using a heavy
> DPDT relay.
>
> 73 Charlie k3ICH
>
>
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Re: [Elecraft] K-Pod data wiring

[Harry Yingst via Elecraft]

As far as I can tell Pin One is connected to the reset pin on the CPU 
(Micro-controller)
I would assume it's the same on the K-pod as well.

The connector on the K3 appears to be a Programming connector for the main 
Micro-controller

You should be able to take an off the shelf 6 pin cable and carefully cut 
through the outer cable covering over pin 1.
Then cut a small section out off the inner Pin 1 wire and put a wrap of black 
tape over the cable to protect it.


I would think as long as the cut is close to the radio end it would be 
functionally the same as cutting it right at the connector.

I would thing the two main concerns are not having them connected and getting 
stray RF into pin 1 (hence cutting close to the radio end)





  From: Wes Stewart 
 To: Elecraft Reflector  
 Sent: Monday, January 2, 2017 11:41 AM
 Subject: [Elecraft] K-Pod data wiring
   
When my better half asked me for gift suggestions and I mentioned a K-Pod she 
thought that was a great idea since I've aggravated an old rotator cuff injury 
by constantly using my right hand tuning my K3 and running a mouse. I've since 
trained my left hand to run the mouse and thought I could run the K-Pod the 
same.

The problem is the supplied data cable is too short and too stiff.  (IMHO there 
are other deficiencies but those might be the subject of another message)  
Unfortunately, one is left to manufacture a cable, since there is an 
admonishment in the manual to NOT have a connection to Pin 1 (they don't want 
to 
rile up Jim Brown I guess).  The puzzling part is that they warn that if a 
standard RJ12 cable is modified (not sure how one would do this) to break the 
Pin 1 connection, the end with the disconnect should connect to the K3.  So I 
question: 1) Why should it matter?  2) If Pin 1 is unused why is it connected 
to 
something inside the K-Pod?

Wes  N7WS
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Re: [Elecraft] KPA500 with WSJT digital modes

[Jim Rhodes]

Use mine for RTTY contesting, little longer transmit and receive times. At
times the fan speed kicks up so keep an eye on the temp, but other than
that I would just try it and see. If it gets too hot it will fault off.

On Jan 2, 2017 10:43, "Stew"  wrote:

> I am considering using a KPA500 on 6 meter meteor scatter. The MSK144
> digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds.
> Can anyone share their experience using this amp in this mode? Is the
> KPA500 up to the task at full 500 watts output on six meters?
>
> Thanks & HNY
>
> Stew ke4yh
>
>
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Re: [Elecraft] KXPA100 with PX3

[Ray W2RS via Elecraft]

Don and others,


The good news is that you were right: the RJ-45 connectors in the control cable 
were not making good contact.  I fixed that and PA ON operation of the KXPA100 
is now working.


The bad news, however, is that in Basic operation with PA OFF, the KX3/KXPA100 
puts out full power, but the most I can get out of it with PA ON is 50-60 
watts.  The attenuator is set for OUT/AUTO and there is no more than 1 or 2 
watts reflected power.


What should I try now?


73 Ray W2RS



-Original Message-
From: Don Wilhelm 
To: rsoifer1 ; fcady ; ai6do 

Cc: elecraft 
Sent: Fri, Dec 30, 2016 10:23 am
Subject: Re: [Elecraft] KXPA100 with PX3

Ray,

Check to be certain the RJ-45 connectors are fully plugged in.  Some of 
them are difficult to seat if you hold onto the cover boot.  Pull the 
boot back and push the plug itself in until it clicks.

Make sure the other plugs are fully seated - give them an extra push 
into their jacks.

73,
Don W3FPR

On 12/30/2016 11:50 AM, Ray W2RS via Elecraft wrote:
> The KX3 says it has the KXPA100 behind it, but I still get no output.  When I 
> turn PA MODE to OFF, and turn the amp ON using the front panel switch, I get 
> full output but in Basic mode.
>

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Re: [Elecraft] F.S. KX3 and accessories

[rick jones via Elecraft]

Hi, Please email me: n3ikq at yahoo dot com
Thanks 
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[Elecraft] KPA500 with WSJT digital modes

[Stew]

I am considering using a KPA500 on 6 meter meteor scatter. The MSK144 
digital mode uses 100% duty cycle for 15 seconds and off for 15 seconds. 
Can anyone share their experience using this amp in this mode? Is the 
KPA500 up to the task at full 500 watts output on six meters?


Thanks & HNY

Stew ke4yh


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Re: [Elecraft] I need More RX Volume on my K3, has anyone run an external audio amp?

[Dave Heil]

My answer is to use the Radio Shack Optimus SA-155 Integrated Stereo 
Amplifier.  It was also produced as the RCA SA-155.  Specs are 1.8W per 
channel, 25-25,000 Hz.  Has tone and balance controls, an 1/8" stereo 
phone jack and a tuner, CD/tape and phono switch.  Works fine with phone 
or the beefy speakers I use (about three times the size of typical 
computer speakers).  Mine sits atop  the K3 with 3/4" to spare on either 
side of the K3.


Dave Heil K8MN

On 31-Dec-16 22:46, Harry Yingst via Elecraft wrote:


I have the K3 and a pair of SP3 speakers

When I turn down the RF gain and turn on the NR (to clean up the band noise)  I 
run out of Audio (too quiet) to hear the weaker signals.

I was curious if anyone is running a small external amp between the K3 and the 
speakers to help bring up the volume?

Thank you
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-
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.7996 / Virus Database: 4739/13683 - Release Date: 12/31/16


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[Elecraft] F.S. KX3 and accessories

[Joe W2KJ]

Howdy Gang:

If Santa didn’t stop by your QTH with a KX3 this year here’s your chance.

Selling my back-up KX3 s/n 6027..the rig is in absolutely mint, like-new 
condition and works great.

This unit was factory assembled.

The KX3 comes with the following accessories:

Internal auto-tuner

Roofing filter

Upgraded Elecraft heat sink

Nifty KX3 manual

Nifty KX3 stand

Original Elecraft manual

Will ship to your QTH for $1150.

Best wishes for a wonderful New Year to all on the Elecraft list.

73, Joe W2KJ
KX3, KX2


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Re: [Elecraft] MH3 mic with the K3?

[Nr4c]

Or just spend the ~$70 and buy an MH2.  It's already wired ready to go. 

Sent from my iPhone
...nr4c. bill


> On Jan 1, 2017, at 6:49 PM, Don Wilhelm  wrote:
> 
> Ron,
> 
> I am not going to give you a step by step set of instructions, but the K3 (no 
> hyphen) manual has the pinout for the 8 pin Foster jack, and the KX3 manual 
> has the pinout for the MH3 mic plug.
> Match up the AF lines and the shell (AF ground) with the 8 pin connections, 
> and match up the PTT on the MH3 plug ring 1 to the PTT pin on the 8 pin.
> The PTT return is a little more "tricky" and you should connect the MH3 ring 
> 2 to wither pin 7 or pin 8 on the 8 pin Foster plug.
> 
> You will need to turn bias on in the K3 menu, and the UP/DN buttons on the 
> MH3 mic will not work - but you should have audio and PTT.
> 
> 73,
> Don W3FPR
> 
>> On 1/1/2017 6:23 PM, Ron Manfredi wrote:
>> HNYto all!
>> 
>> Has anyone made an adapter cable to allow the MH-3  mic to be used with
>> the K-3?   I acquired a KX3 with its mic, and a K-3 without a mic, and
>> would like to be able to use the same mic on both rigs.
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Re: [Elecraft] Rotating Macros and the K-Pod ?

[Cady, Fred]

I think what he means about rotating macros is where one macro executes and 
then assigns another macro to the same function key.  I've been calling those 
"sequencing" macros.


Say Macro 8 sets AGC THR to 5 and Macro 7 sets AGC THR to 15 and holding PF2 is 
assigned to Macro 8 and you would like to use successive holds of PF2 to toggle 
between THR 5 and 15.  Code is added to the end of each macro to reassign PF2 
to activate the other macro.  (I don't remember who came up with this but it a 
nice idea although a bit like the old self modifying code days.)


You can't do this directly with a KPod button because their macro assignments 
cannot be reassigned like programmable function keys.  But you can do it 
indirectly by making another macro, say Macro 16, hold the PF2 key.  Now 
tapping KPod button 8 holds PF2 which toggles THR.  Note that (at present) the 
first two macros have to be in 1-8 because function keys can only be assigned 
to those locations.


So instead of two macros and a function key you use three macros, a function 
key, and a KPod button.


Cheers,

Fred KE7X


For all KE7X Elecraft books, see www.ke7x.com

(Macro Programming coming soon)




From: Elecraft  on behalf of NW0M 

Sent: Monday, January 2, 2017 5:55 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Rotating Macros and the K-Pod ?

I'm not sure what you mean by 'Rotating Macros.'

As far as not using Macros 1-8, just don't assign any macro commands to
them.  No action is taken by the K3 when pressing an F-key with no assigned
macro command.

73, Mitch
NWØm



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Re: [Elecraft] Transmit CW in SSB mode with KPOD

[lmarion]

High Mitch,

  You have it working, but still not where I would like to be.
I am still not understanding why  I can transmit CW  in SSB mode with the 
key line

without leaving SSB, but not with a KPOD macro.
But since none of the Elecraft folks have responded to this twice asked 
question,

maybe that’s the way it is.
I can hook up a keyer to the CW key line and send all the CW in SSB  mode I 
want.

I was just trying to use a KPOD button push for convenience.

Thanks for helping, 73,  Leroy AB7CE

-Original Message- 
From: NW0M

Sent: Monday, January 02, 2017 5:46 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Upgrade of K3 control of KPA500

Hi Leroy,

Regarding your macro question about sending CW in SSB mode I was able to do
this but had to create two macros.

First macro moved the Mode down (to get in CW mode) and sent the callsign:
SWT17;KYWAB7E;
Second macro moved the Mode up (to get back in SSB mode):  SWT18;

73, Mitch
NWØM



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[Elecraft] unsubscribe

[steve roberts]

Sent from Mail for Windows 10

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Re: [Elecraft] Rotating Macros and the K-Pod ?

[NW0M]

I'm not sure what you mean by 'Rotating Macros.'

As far as not using Macros 1-8, just don't assign any macro commands to
them.  No action is taken by the K3 when pressing an F-key with no assigned
macro command.

73, Mitch
NWØm



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Re: [Elecraft] Upgrade of K3 control of KPA500

[NW0M]

Hi Leroy,

Regarding your macro question about sending CW in SSB mode I was able to do
this but had to create two macros.

First macro moved the Mode down (to get in CW mode) and sent the callsign: 
SWT17;KYWAB7E;
Second macro moved the Mode up (to get back in SSB mode):  SWT18;

73, Mitch
NWØM



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