[Elecraft] Charging IMEDION2400 mAh batteries?

[David F. Reed]

I have these MEDION2400 mAh batteries that I am using in my KX3; I have 
2 set of them so I can be charging one set while operating with the other.


My question is, using my Powerex programmable charger, what settings 
should I use for current and time?


Thanks in advance & 72 de Dave, W5SV

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[Elecraft] [K3] FW 5.5 issue??

[Jim McDonald]

I installed K3 FW 5.50 to use my K-Pod, which I like very much.  I have a
couple of weird problems using DXLab now that I can't explain and wonder if
the new FW might be related.

 

In DXLab, when I click on RTTY DX spot in SpotCollector the K3 changes the
frequency in the K3 but it's 850 Hz higher than the frequency that DXLab
sends to the radio.  I'm using K3 FSK D with 1275/1445 tones, NOT AFSK.

 

I don't know if my other problem is attributable to the firmware either.
DXLab's rig control module, Commander, has a nice feature (activated by
clicking on a button in the VFO B panel) that will switch the radio to split
and turn on the subreceiver (called "dual receive" in Commander).  It used
to do both of those but now only turns on split but not the subreceiver.

 

I'd very much appreciate someone also using FW 5.50 and DXLab would check to
see if my experience is unique to me or not.

 

Thanks.

 

73, Jim N7US

 

 

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Re: [Elecraft] WSPR & Diversity RX

[Don Wilhelm]

Bret,

Since the computer soundcard is working only with one channel, diversity 
mode will not help - unless you can create an 'add-on' to interpret both 
channels and decide which one has better reception.


When using Diversity Mode, you listen with both ears to the left and 
right channels and your brain figures out which is the better side to 
listen to - one channel from the main RX and the other from the subRX.
With digital modes, the soundcard is listening only to the left channel 
- main RX.


Yes, you have antennas that will do diversity for you, but that will 
only be useful in voice modes and CW because the human brain will 
automatically decipher the best signal from the two channels - you 
listen to diversity with one channel in each ear.


73,
Don W3FPR

On 9/30/2016 5:36 PM, MaverickNH wrote:

I'm wondering about my K3S in Diversity RX on Digital modes, such as WSPR. I
have a G5RV and a 43ft Vertical, so was thinking I might find better overall
RX with Diversity enabled. Thoughts on this?



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Re: [Elecraft] genovation Keypad

[Joe Subich, W4TV]

On 9/30/2016 2:24 PM, Dave Cole wrote:
> I just need to write small stack to decoded the scan codes, then feed
> that to a lookup table, then fire off the macros to see if this is
> correct...  Should be a bit, as I am headed out on vacation shortly...

It depend on which Genovation unit you are using.  There are three
versions.  One is a true serial device - it emits ASCII (RS-232).  One
is a USB Virtual serial device - it also emits ASCII (USB).  The third
is an USB HID (Human Interface Device) - it is a virtual keyboard and
emits scan codes.

73,

  ... Joe, W4TV


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Re: [Elecraft] genovation Keypad

[Dave Cole]

On Fri, 2016-09-30 at 18:12 +, P.J.Hicks wrote:
> Dave, 
> 
> Not that I know what I'm doing but glad I could help. Hi 
> 
> I do know that with a few exceptions both rigs use the same commands
> from the utility programs. I am not a Rpi guy; I dabble in the Arduino
> but I'm sure the code could be ported over rather easily. Pleas keep
> me and all of us apprised of your progress. I am very interested. 
> 
> 73, 
> P. J. Hicks, N7PXY 
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> Message delivered to d...@nk7z.net

I may switch to the Arduino...  I found some code for doing scan codes
ready to fly on the Arduino...  Basically, all I need to do then is to
write a lookup table, and populate the macros into that...  :)  This
seems all too simple...  There will be a gotcha in here someplace...
-- 
73's, and thanks,
Dave (NK7Z)
For software/hardware reviews see:
http://www.nk7z.net

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Re: [Elecraft] K3, RX ANT and Band Outputs

[Don Wilhelm]

Per-Tore,

The band data outputs should follow the band set on VFO A.  That should 
not change with RX ANT in or out.


If you have VFO IND set to ON, the band outputs should still reflect the 
band for VFO A.


The other thing that affects the band data output is the menu 
CONFIG:KIO3 - if set to TRNS, then the band data output for HF-6 m will 
all be zero.  If set to NOR, they should conform to the chart in the manual.


If you have different results, please report it to Elecraft support as a 
problem.


73,
Don W3FPR

On 9/30/2016 6:17 PM, Per-Tore Aasestrand wrote:

Hello,

It appears that the Band Outputs are not according to the selected band
when RX ANT is active.

Anyone who can explain how this is supposed to function?




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[Elecraft] K3, RX ANT and Band Outputs

[Per-Tore Aasestrand]

Hello,

It appears that the Band Outputs are not according to the selected band
when RX ANT is active.

Anyone who can explain how this is supposed to function?

73 de

Per-Tore / LA7NO
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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] how to optimize end-fed?

[Fred Jensen]

Yes ... and forty three is held in reverence by others who attribute 
magical properties to it. :-)


73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 9/30/2016 1:22 PM, David Kuechenmeister wrote:

I think 42 might be a valid answer, depending on the question.
Forty-one is certainly a good answer! There are a couple pages that
try to address the question of what long wire lengths are the easiest
to tune, i.e. present a low SWR to the matching unit. The first is at
http://udel.edu/~mm/ham/randomWire/ and it's work is derived from
what was presented here,
http://www.qsl.net/on7dy/Documentation/Best%20%20Random%20Wire%20Antenna%20Lengths.htm

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[Elecraft] WSPR & Diversity RX

[MaverickNH]

I'm wondering about my K3S in Diversity RX on Digital modes, such as WSPR. I
have a G5RV and a 43ft Vertical, so was thinking I might find better overall
RX with Diversity enabled. Thoughts on this?

Bret/N4SRN



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/WSPR-Diversity-RX-tp7622983.html
Sent from the Elecraft mailing list archive at Nabble.com.
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[Elecraft] KIO3 K3

[Robert W5AJ Wood]

 

Looking for RS232 board for K3 

 

73 Robert W5AJ

 

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

[David Kuechenmeister]

I think 42 might be a valid answer, depending on the question. Forty-one is 
certainly a good answer!
There are a couple pages that try to address the question of what long wire 
lengths are the easiest to tune, i.e. present a low SWR to the matching unit.
The first is at http://udel.edu/~mm/ham/randomWire/ and it's work is derived 
from what was presented here, 
http://www.qsl.net/on7dy/Documentation/Best%20%20Random%20Wire%20Antenna%20Lengths.htm
Hope this helps a little. With my KX3 tuner, it doesn't seem to matter much 
what I use for a long wire. The tuner does a good job matching the antenna to 
the rig.
vy 73,Dave N4KD 

On Friday, September 30, 2016 4:01 PM, Fred Jensen  
wrote:
 

 Let me see if I understand the question:  You're looking for a simple 
algorithm to tell you how to "best" deploy a wire of indeterminate 
length in a configuration yet to be specified using a transformer of 
indefinite impedance ratio on any of a number of unnamed bands.

This is reminiscent of one of the five volumes in Douglas Adams' 
trilogy, "The Hitchhikers Guide to the Galaxy."  The people build a very 
powerful computer and then asked it, "What is the meaning of the 
Universe?"  The computer begins to compute, as is the wont of computers, 
and worked on the problem for a very long time.  Finally, it announced 
that it had determined the answer.  By this time, there was no one in 
the Universe that remembered the original question.  When asked for the 
answer, the computer replied, "Forty Two."

Possibly "forty two" would work for you as a rule of thumb? :-))

73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 9/29/2016 11:24 PM, 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.

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Re: [Elecraft] genovation Keypad

[Roger D Johnson]

Jeff, VA2SS, wrote an article covering this:

http://www.eham.net/articles/32176

Unfortunately, I can't retrieve the picture that went with the article. Jeff
used a "serial port splitter" but I think a program like LP-Bridge that
generated virtual ports will work also. I ordered a USB keypad that
didn't work so have a RS232 one on order. I'll let you know how it works.

73, Roger

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Re: [Elecraft] F.S. KX3

[Joe W2KJ]

The KX3 listed for sale below has been sold.

73, Joe W2KJ

On Sep 30, 2016, at 2:52 PM, Joe W2KJ wrote:

> Howdy Gang:
> 
> I offer for sale my back-up KX3...don't need two as I bought a KX2.
> 
> The KX3 is in most excellent condition...can't find a scratch, ding, dent 
> anywhere.
> 
> Unit has the internal auto tuner and roofing filter, plus the Gem Products 
> SideKx end panels/handles ($40 value).
> 
> Picture available for serious buyer.
> 
> Will ship for $975...sorry, no overseas shipping.
> 
> U.S. Postal Money Order is fine for payment or PayPal (please add 4% to cover 
> the fee).
> 
>   73, Joe W2KJ
>   I QRP, therefore I am
> 
> 

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[Elecraft] KPA500 down

[efortner]

KPA500 blew both FETS and PA module has been shipped for repairs. I am
trying to use an Ameritron AL-80B amplifier until I get my KPA500 back.  My
paddle goes to an external keyer (Navigator) which is plugged into PTT on my
K3s and the key out goes to the PTT input on the Ameritron amp. The paddle
works fine with the K3s but the Xmit tune button will not key the amp nor
the macro button on CW. I cannot find anything about config to make it work.
Any suggestions.

Earl, K4KAY

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

[Fred Jensen]

Let me see if I understand the question:  You're looking for a simple 
algorithm to tell you how to "best" deploy a wire of indeterminate 
length in a configuration yet to be specified using a transformer of 
indefinite impedance ratio on any of a number of unnamed bands.


This is reminiscent of one of the five volumes in Douglas Adams' 
trilogy, "The Hitchhikers Guide to the Galaxy."  The people build a very 
powerful computer and then asked it, "What is the meaning of the 
Universe?"  The computer begins to compute, as is the wont of computers, 
and worked on the problem for a very long time.  Finally, it announced 
that it had determined the answer.  By this time, there was no one in 
the Universe that remembered the original question.  When asked for the 
answer, the computer replied, "Forty Two."


Possibly "forty two" would work for you as a rule of thumb? :-))

73,

Fred K6DGW
- Sparks NV DM09dn

- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 9/29/2016 11:24 PM, 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.


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[Elecraft] F.S. KX3

[Joe W2KJ]

Howdy Gang:

I offer for sale my back-up KX3...don't need two as I bought a KX2.

The KX3 is in most excellent condition...can't find a scratch, ding, dent 
anywhere.

Unit has the internal auto tuner and roofing filter, plus the Gem Products 
SideKx end panels/handles ($40 value).

Picture available for serious buyer.

Will ship for $975...sorry, no overseas shipping.

U.S. Postal Money Order is fine for payment or PayPal (please add 4% to cover 
the fee).

73, Joe W2KJ
I QRP, therefore I am


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Re: [Elecraft] genovation Keypad

[Dave Cole]

On Fri, 2016-09-30 at 18:12 +, P.J.Hicks wrote:
> Dave, 
> 
> Not that I know what I'm doing but glad I could help. Hi 
> 
> I do know that with a few exceptions both rigs use the same commands
> from the utility programs. I am not a Rpi guy; I dabble in the Arduino
> but I'm sure the code could be ported over rather easily. Pleas keep
> me and all of us apprised of your progress. I am very interested. 
> 
> 73, 
> P. J. Hicks, N7PXY 

I just need to write small stack to decoded the scan codes, then feed
that to a lookup table, then fire off the macros to see if this is
correct...  Should be a bit, as I am headed out on vacation shortly...


I will have the Genovation feeding directly into the K3, it just may
take some time for me to get my head around the scan code thing...  
-- 
73's, and thanks,
Dave (NK7Z)
For software/hardware reviews see:
http://www.nk7z.net

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[Elecraft] genovation Keypad

[P.J.Hicks]

Dave, 

Not that I know what I'm doing but glad I could help. Hi 

I do know that with a few exceptions both rigs use the same commands from the 
utility programs. I am not a Rpi guy; I dabble in the Arduino but I'm sure the 
code could be ported over rather easily. Pleas keep me and all of us apprised 
of your progress. I am very interested. 

73, 
P. J. Hicks, N7PXY 
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Re: [Elecraft] KPA 500 Hum

[Jack Brindle]

You may not have the transformer properly tightened down. Recheck it.

Also, 58V is not that bad, but you might want to recheck that you are using the 
proper tap
from the transformer. You just might want to go up a notch to get a higher 
voltage. Essentially
you want the tap that provides the highest voltage, but does not cause 
over-voltage faults.
Also, you might check your shack wiring. If you are sagging too much, then you 
are seeing
significant voltage drop in the AC wiring to the amplifier. This includes the 
power cord and
the wiring inside the wall. If you are a long ways from the breaker box you 
might want to consider
increasing the wire size in the wall, or better, going to 240V operation with 
the KPA.

The procedure for both these things is described in the KPA manual.

If tightening the transformer hold-down nut does not quiet the amplifier, give 
the folks at the
factory a call. They should be able to help you get it more quiet, although 
they may
tell you the same things just did…

73,

Jack Brindle, W6FB
Elecraft Engineering


> On Sep 30, 2016, at 6:46 AM, Tom  wrote:
> 
> Just received a KPA 500 and KAT 500 yesterday.  Using them with my Icom
> 7300.  I know the manual says to expect some hum from the KPA 500 but I
> believe mine is more than a hum.  When I send CW I don't need to monitor
> the radio side tone.  I just have to listen to the amp. :-)  Anyone else
> experience this?
> 
> My HV voltage is 75 at idle.  I am using 120V power.  When I key down it
> drops to around 58.  Manual says 60+ is best.  Don't know if this has
> anything to do with the hum?
> 
> I have not contacted Elecraft yet.  I wanted to hear what folks say first.
> 
> 73,
> Tom
> KQ5S
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Re: [Elecraft] K2 Poor sensitivity

[Brian Denley]

Nice work Paul.

Brian 
KB1VBF
Sent from my iPad

> On Sep 30, 2016, at 10:41 AM, Radiobeamer  wrote:
> 
> Hi All,
> 
> Firstly, thanks for all of your help.  I checked the RFCs on the SSB board
> as per Steve's suggestion and they were OK, although my problem was quite
> similar (see below).  Also, thanks to Frank for your suggestion.  As I'm in
> the UK it is quite cost prohibitive to send the radio to Don.  Also, being
> able to fault-find, align and repair the K2 is part of its attraction.
> 
> Secondly, I managed to find the fault!.  I noticed that the sensitivity on
> the transverter input was better than on the antenna input.  Probing about
> on the TR switch led me to the conclusion that RFC3 was not connected
> properly, leading to excessive loss in D4.  Problems with poor soldering on
> enamelled wire are well known!  After re-making the joints of RFC3 I can
> hear signals down to -130dBm on all bands (with the preamp on).
> 
> I've still not measured the sensitivity accurately but it does seem to work
> properly now.  I'll re-align everything now for 100% performance.
> 
> Thanks again for a helpful and friendly group.
> 
> 73,
> 
> Paul
> G4KZY
> 
> 
> 
> --
> View this message in context: 
> http://elecraft.365791.n2.nabble.com/K2-Poor-sensitivity-tp7622862p7622968.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] how to optimize end-fed?

[Lynn W. Taylor, WB6UUT]

Maybe I'm missing something, but you have a selection of taps, the 
highest is 16:1.


If the wire is exactly 1/2 wave, then the impedance is going to be very 
high, and the 16:1 tap will come closest to matching a high impedance load.


If the wire is some multiple of 1/4 wave but not a an even multiple (not 
an multiple of a half wave) then the lowest tap is probably best.


I'd disable the tuner and check the SWR on each tap for each band -- if 
I wanted to verify the (very simple) math.


73 -- Lynn

On 9/29/2016 11:24 PM, Holger Schurig wrote:

The most easy thing to change (because it's often near the bottom) is
the UNUN tap I'm using.


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Re: [Elecraft] [KX3] Re: KX3/KXPA100 issue

[Jim Rhodes]

And make sure the contacts on your control cable are securely crimped.
Lessons learned from experience are best remembered.

On Sep 30, 2016 8:38 AM, "Don Wilhelm"  wrote:

> I have just been alerted that a loose RJ-45 plug in the KXPA100 Control
> jack can cause that same problem.  Make sure the plug is fully inserted and
> the locking tab has clicked into place.
>
> 73,
> Don W3FPR
>
> --
> David,
>
> The KX3 may still be running by virtue of the internal batteries if the
> KXPA100 power drops, but that will not prevent the KX3 from turning off the
> PA ON menu and dropping the power to 5 volts.
>
> Check your power cable - look in the end of the APP connector.  If you see
> the end of 2 pieces of metal (both the spring finger and the contact blade)
> the contact blade is not latched, give it a push from the wire side until
> it latches.
>
> Check the connections at your power supply, they must be tight - if you
> can move them at all, they are not tight.  Also check the fuse and
> fuseholder.  The fuse must make tight contact with the fuseholder contacts.
>
> 73,
> Don W3FPR
>
> On 9/30/2016 9:24 AM, 'David F. Reed' w5sv.d...@gmail.com [KX3] wrote:
>
>>
>> Geoff,
>>
>> Thanks for the idea... That might be it; I am not in the shack when it
>> happens, though if that were it, I would be surprised, as I have the
>> internal batteries in place, and I would have thought that the power
>> doesn't go away if the external supply drops.  Could be just enough I
>> guess...
>>
>> Thanks & 73 de W5SV, Dave
>>
>>
>> On 9/30/16 07:20, Geoff Allsup wrote:
>>
>>> If supply power goes off even momentarily (instead of turning power
>>> off on the KX3) that's exactly what happens. Check your supply would
>>> be my first suggestion.
>>>
>>>
>>>
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Re: [Elecraft] K2 Poor sensitivity

[Radiobeamer]

Hi All,

Firstly, thanks for all of your help.  I checked the RFCs on the SSB board
as per Steve's suggestion and they were OK, although my problem was quite
similar (see below).  Also, thanks to Frank for your suggestion.  As I'm in
the UK it is quite cost prohibitive to send the radio to Don.  Also, being
able to fault-find, align and repair the K2 is part of its attraction.

Secondly, I managed to find the fault!.  I noticed that the sensitivity on
the transverter input was better than on the antenna input.  Probing about
on the TR switch led me to the conclusion that RFC3 was not connected
properly, leading to excessive loss in D4.  Problems with poor soldering on
enamelled wire are well known!  After re-making the joints of RFC3 I can
hear signals down to -130dBm on all bands (with the preamp on).

I've still not measured the sensitivity accurately but it does seem to work
properly now.  I'll re-align everything now for 100% performance.

Thanks again for a helpful and friendly group.

73,

Paul
G4KZY



--
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http://elecraft.365791.n2.nabble.com/K2-Poor-sensitivity-tp7622862p7622968.html
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Re: [Elecraft] [KX3] Re: KX3/KXPA100 issue

[David F. Reed]

Don,

understood; the cables and PS and its connections are fine.  I expect 
what is happening is I am occasionally losing line power, which shuts 
down the PA without it communicating to the KX3; I think that is what is 
resetting things...


Thanks for the help & 73 de W5SV, Dave

On 9/30/16 09:16, Don Wilhelm wrote:
I have been corrected - last word of 1st paragraph should have been 
'watts' instead of 'volts'.

I trust everyone knew that!

73,
Don W3FPR

David,

The KX3 may still be running by virtue of the internal batteries if 
the KXPA100 power drops, but that will not prevent the KX3 from 
turning off the PA ON menu and dropping the power to 5 volts.


Check your power cable - look in the end of the APP connector.  If you 
see the end of 2 pieces of metal (both the spring finger and the 
contact blade) the contact blade is not latched, give it a push from 
the wire side until it latches.


Check the connections at your power supply, they must be tight - if 
you can move them at all, they are not tight.  Also check the fuse and 
fuseholder.  The fuse must make tight contact with the fuseholder 
contacts.


73,
Don W3FPR

On 9/30/2016 9:24 AM, 'David F. Reed' w5sv.d...@gmail.com [KX3] wrote:


Geoff,

Thanks for the idea... That might be it; I am not in the shack when it
happens, though if that were it, I would be surprised, as I have the
internal batteries in place, and I would have thought that the power
doesn't go away if the external supply drops.  Could be just enough I
guess...

Thanks & 73 de W5SV, Dave


On 9/30/16 07:20, Geoff Allsup wrote:

If supply power goes off even momentarily (instead of turning power
off on the KX3) that's exactly what happens. Check your supply would
be my first suggestion.






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Re: [Elecraft] [KX3] Re: KX3/KXPA100 issue

[David F. Reed]

Don,

understood; the cables and PS and its connections are fine.  I expect 
what is happening is I am occasionally losing line power, which shuts 
down the PA without it communicating to the XK3; I think that is what is 
resetting things...


Thanks for the help & 73 de W5SV, Dave

On 9/30/16 09:16, Don Wilhelm wrote:
I have been corrected - last word of 1st paragraph should have been 
'watts' instead of 'volts'.

I trust everyone knew that!

73,
Don W3FPR

David,

The KX3 may still be running by virtue of the internal batteries if 
the KXPA100 power drops, but that will not prevent the KX3 from 
turning off the PA ON menu and dropping the power to 5 volts.


Check your power cable - look in the end of the APP connector.  If you 
see the end of 2 pieces of metal (both the spring finger and the 
contact blade) the contact blade is not latched, give it a push from 
the wire side until it latches.


Check the connections at your power supply, they must be tight - if 
you can move them at all, they are not tight.  Also check the fuse and 
fuseholder.  The fuse must make tight contact with the fuseholder 
contacts.


73,
Don W3FPR

On 9/30/2016 9:24 AM, 'David F. Reed' w5sv.d...@gmail.com [KX3] wrote:


Geoff,

Thanks for the idea... That might be it; I am not in the shack when it
happens, though if that were it, I would be surprised, as I have the
internal batteries in place, and I would have thought that the power
doesn't go away if the external supply drops.  Could be just enough I
guess...

Thanks & 73 de W5SV, Dave


On 9/30/16 07:20, Geoff Allsup wrote:

If supply power goes off even momentarily (instead of turning power
off on the KX3) that's exactly what happens. Check your supply would
be my first suggestion.






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Re: [Elecraft] [KX3] Re: KX3/KXPA100 issue

[Don Wilhelm]

I have just been alerted that a loose RJ-45 plug in the KXPA100 Control 
jack can cause that same problem.  Make sure the plug is fully inserted 
and the locking tab has clicked into place.


73,
Don W3FPR

--
David,

The KX3 may still be running by virtue of the internal batteries if the 
KXPA100 power drops, but that will not prevent the KX3 from turning off 
the PA ON menu and dropping the power to 5 volts.


Check your power cable - look in the end of the APP connector.  If you 
see the end of 2 pieces of metal (both the spring finger and the contact 
blade) the contact blade is not latched, give it a push from the wire 
side until it latches.


Check the connections at your power supply, they must be tight - if you 
can move them at all, they are not tight.  Also check the fuse and 
fuseholder.  The fuse must make tight contact with the fuseholder contacts.


73,
Don W3FPR

On 9/30/2016 9:24 AM, 'David F. Reed' w5sv.d...@gmail.com [KX3] wrote:


Geoff,

Thanks for the idea... That might be it; I am not in the shack when it
happens, though if that were it, I would be surprised, as I have the
internal batteries in place, and I would have thought that the power
doesn't go away if the external supply drops.  Could be just enough I
guess...

Thanks & 73 de W5SV, Dave


On 9/30/16 07:20, Geoff Allsup wrote:

If supply power goes off even momentarily (instead of turning power
off on the KX3) that's exactly what happens. Check your supply would
be my first suggestion.




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Re: [Elecraft] [KX3] Re: KX3/KXPA100 issue

[Don Wilhelm]

I have been corrected - last word of 1st paragraph should have been 
'watts' instead of 'volts'.

I trust everyone knew that!

73,
Don W3FPR

David,

The KX3 may still be running by virtue of the internal batteries if the 
KXPA100 power drops, but that will not prevent the KX3 from turning off 
the PA ON menu and dropping the power to 5 volts.


Check your power cable - look in the end of the APP connector.  If you 
see the end of 2 pieces of metal (both the spring finger and the contact 
blade) the contact blade is not latched, give it a push from the wire 
side until it latches.


Check the connections at your power supply, they must be tight - if you 
can move them at all, they are not tight.  Also check the fuse and 
fuseholder.  The fuse must make tight contact with the fuseholder contacts.


73,
Don W3FPR

On 9/30/2016 9:24 AM, 'David F. Reed' w5sv.d...@gmail.com [KX3] wrote:


Geoff,

Thanks for the idea... That might be it; I am not in the shack when it
happens, though if that were it, I would be surprised, as I have the
internal batteries in place, and I would have thought that the power
doesn't go away if the external supply drops.  Could be just enough I
guess...

Thanks & 73 de W5SV, Dave


On 9/30/16 07:20, Geoff Allsup wrote:

If supply power goes off even momentarily (instead of turning power
off on the KX3) that's exactly what happens. Check your supply would
be my first suggestion.




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[Elecraft] KPA 500 Hum

[Tom]

Just received a KPA 500 and KAT 500 yesterday.  Using them with my Icom
7300.  I know the manual says to expect some hum from the KPA 500 but I
believe mine is more than a hum.  When I send CW I don't need to monitor
the radio side tone.  I just have to listen to the amp. :-)  Anyone else
experience this?

My HV voltage is 75 at idle.  I am using 120V power.  When I key down it
drops to around 58.  Manual says 60+ is best.  Don't know if this has
anything to do with the hum?

I have not contacted Elecraft yet.  I wanted to hear what folks say first.

73,
Tom
KQ5S
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Re: [Elecraft] [KX3] Re: KX3/KXPA100 issue

[Don Wilhelm]

David,

The KX3 may still be running by virtue of the internal batteries if the 
KXPA100 power drops, but that will not prevent the KX3 from turning off 
the PA ON menu and dropping the power to 5 volts.


Check your power cable - look in the end of the APP connector.  If you 
see the end of 2 pieces of metal (both the spring finger and the contact 
blade) the contact blade is not latched, give it a push from the wire 
side until it latches.


Check the connections at your power supply, they must be tight - if you 
can move them at all, they are not tight.  Also check the fuse and 
fuseholder.  The fuse must make tight contact with the fuseholder contacts.


73,
Don W3FPR

On 9/30/2016 9:24 AM, 'David F. Reed' w5sv.d...@gmail.com [KX3] wrote:


Geoff,

Thanks for the idea... That might be it; I am not in the shack when it 
happens, though if that were it, I would be surprised, as I have the 
internal batteries in place, and I would have thought that the power 
doesn't go away if the external supply drops.  Could be just enough I 
guess...


Thanks & 73 de W5SV, Dave


On 9/30/16 07:20, Geoff Allsup wrote:
If supply power goes off even momentarily (instead of turning power 
off on the KX3) that's exactly what happens. Check your supply would 
be my first suggestion.





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

[Don Wilhelm]

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/KXPA100 issue

[David F. Reed]

Joel,

thanks for the help; typically I am not in the shack when this happens.
Software sometimes running WSJT-X, sometimes DXLab suite.
Firmware revisions: KX3 - MCU: 02.38, DSP 01.37 ... KXPA100 - 01.35

thanks & 73 de W5SV, Dave

On 9/30/16 06:55, Joel Black wrote:

Dave,

I run the same setup adding the PX3. First, I am *not* experiencing this with 
my setup. Second, what are you doing (i.e. software controls, macros, etc.) 
right *before* this happens? What version of F/W are you running on each?

73,
Joel - W4JBB


On Sep 30, 2016, at 06:42, David F. Reed  wrote:

I am running a KX3 into a KXPA100.

It all plays very nicely except for one issue; on a seemingly random basis, it 
seems to lose communications between them in a big way. The KX3 has (without my 
doing anything) reset the PA Mode to Off, and the PWR to 5.0.  When this 
happens, let's say I have power set to 30 watts; the KXPA100 shuts down and to 
get it back up, I have to go to the KX3, re-enable PA MODE from Off to On, and 
and reset the PWR level from 5.0 watts to 30 watts.

My questions are:

1. Is anyone else experiencing this?
2. What is going on?
3. How do I fix it

Any help appreciated.

Thanks & 73 de W5SV, Dave


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Re: [Elecraft] KX3/KXPA100 issue

[David F. Reed]

Geoff,

Thanks for the idea... That might be it; I am not in the shack when it 
happens, though if that were it, I would be surprised, as I have the 
internal batteries in place, and I would have thought that the power 
doesn't go away if the external supply drops. Could be just enough I 
guess...


Thanks & 73 de W5SV, Dave


On 9/30/16 07:20, Geoff Allsup wrote:
If supply power goes off even momentarily (instead of turning power 
off on the KX3) that's exactly what happens. Check your supply would 
be my first suggestion.


geoff - W1OH



Sent from my iPhone

Geoff Allsup, W1OH gall...@whoi.edu  or 
w...@whoi.edu 

Senior Engineer Upper Ocean Processes Group
Woods Hole Oceanographic InstitutionWoods Hole, MA


On Sep 30, 2016, at 07:42, David F. Reed > wrote:



I am running a KX3 into a KXPA100.

It all plays very nicely except for one issue; on a seemingly random 
basis, it seems to lose communications between them in a big way. The 
KX3 has (without my doing anything) reset the PA Mode to Off, and the 
PWR to 5.0.  When this happens, let's say I have power set to 30 
watts; the KXPA100 shuts down and to get it back up, I have to go to 
the KX3, re-enable PA MODE from Off to On, and and reset the PWR 
level from 5.0 watts to 30 watts.


My questions are:

1. Is anyone else experiencing this?
2. What is going on?
3. How do I fix it

Any help appreciated.

Thanks & 73 de W5SV, Dave


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[Elecraft] FS: P3 Panadaptor + P3SVGA video adaptor /FFT processor

[Johnny Siu via Elecraft]

Hello Elecrafters,
I am now downsizing my shack.  The above is available for sale at USD799 
including shipping by insured air parcel to major cities around the world.
I am the original owner, non -smoker. Excellent condition with manual. 

If you are interested or would like to see the photo, please contact me 
off-the-list at vr2xmc at yahoo dot com dot hk
73
Johnny VR2XMC
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Re: [Elecraft] KX3/KXPA100 issue

[Bob N3MNT]

Make sure you turn off the KX3 before you shut off power supply.



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Re: [Elecraft] KX3/KXPA100 issue

[Geoff Allsup]

If supply power goes off even momentarily (instead of turning power off on the 
KX3) that's exactly what happens. Check your supply would be my first 
suggestion.  

geoff - W1OH



Sent from my iPhone

Geoff Allsup, W1OH   gall...@whoi.edu or w...@whoi.edu
Senior Engineer Upper Ocean Processes Group
Woods Hole Oceanographic InstitutionWoods Hole, MA


> On Sep 30, 2016, at 07:42, David F. Reed  wrote:
> 
> I am running a KX3 into a KXPA100.
> 
> It all plays very nicely except for one issue; on a seemingly random basis, 
> it seems to lose communications between them in a big way. The KX3 has 
> (without my doing anything) reset the PA Mode to Off, and the PWR to 5.0.  
> When this happens, let's say I have power set to 30 watts; the KXPA100 shuts 
> down and to get it back up, I have to go to the KX3, re-enable PA MODE from 
> Off to On, and and reset the PWR level from 5.0 watts to 30 watts.
> 
> My questions are:
> 
> 1. Is anyone else experiencing this?
> 2. What is going on?
> 3. How do I fix it
> 
> Any help appreciated.
> 
> Thanks & 73 de W5SV, Dave
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Re: [Elecraft] FS MH2 Mic

[w4grj]

MH2 is SOLD
Jack W4GRJ


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jack
Satterfield
Sent: Friday, September 30, 2016 7:13 AM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] FS MH2 Mic

For Sale is a New MH2 mic, purchased when I got my K3 but never used.

I was going to use on my Kenwood but learned here I would have to modify

the  mic, don't want to do that. Selling for $48 mailed.

Responses off line please.

Jack

W4GRJ

 

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delivered to w4...@satterfield.org

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[Elecraft] KX3/KXPA100 issue

[David F. Reed]

I am running a KX3 into a KXPA100.

It all plays very nicely except for one issue; on a seemingly random 
basis, it seems to lose communications between them in a big way. The 
KX3 has (without my doing anything) reset the PA Mode to Off, and the 
PWR to 5.0.  When this happens, let's say I have power set to 30 watts; 
the KXPA100 shuts down and to get it back up, I have to go to the KX3, 
re-enable PA MODE from Off to On, and and reset the PWR level from 5.0 
watts to 30 watts.


My questions are:

1. Is anyone else experiencing this?
2. What is going on?
3. How do I fix it

Any help appreciated.

Thanks & 73 de W5SV, Dave
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[Elecraft] FS MH2 Mic

[Jack Satterfield]

For Sale is a New MH2 mic, purchased when I got my K3 but never used.

I was going to use on my Kenwood but learned here I would have to modify

the  mic, don't want to do that. Selling for $48 mailed.

Responses off line please.

Jack

W4GRJ

 

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Re: [Elecraft] gennovation keypad

[Bill]

Has anyone thought about simply asking the folks at Elecraft how it all 
works? Seems to me that getting factual answers from them would be far 
better than beating it to death here.


Bill W2BLC K-Line

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

[F5vjc]

If you are working QRP, take a look at
http://www.qrpproject.de/UK/atu.htm

This describes the 'Fuchs' half wave antenna and a matching unit in kit
form. I have built this, very compact,  it works well, gives a good
indication of optimum tune adjustment and is not totally dependent on a
good radial ground system.

73, Denis F5VJC

On 30 September 2016 at 08:29, Holger Schurig 
wrote:

> > Then I should go for the highest impedance and select 1:16, should I?
>
> I meant antenna impedance, not the impedance of the internal ATU
> inductor.
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Re: [Elecraft] how to optimize end-fed?

[Holger Schurig]

> Then I should go for the highest impedance and select 1:16, should I?

I meant antenna impedance, not the impedance of the internal ATU
inductor.
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Re: [Elecraft] how to optimize end-fed?

[Holger Schurig]

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.

But then arises the question: if I change this or that ... how can I
find out what setting is "good" or maybe even "best". Assuming I have
only the things with me that I normally have with me when I'm in the
field: KX3 and laptop.

The most easy thing to change (because it's often near the bottom) is
the UNUN tap I'm using. And I can check the LC-setting in the ATU.

And now I would like to know if there is a method --- in the field ---
where I can optimize wire and tap. And if a low inductance of the ATU
could be measure for it. And if this is true in both setings (the
inducator can be at the antenna side or at the radio side).


So either this question has never been solved amongst the readers here
... or I'm completely on the wrong track and shouldn't care at all what
the ATU finds as a match.



So far Ron's answer come the farthest in answering the question, he
optimizes for a high impedance. Then I should go for the highest
impedance and select 1:16, should I?


73,
Holger DHSHS
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