[Elecraft] K3 strange behavior

[Andreas Wachter via Elecraft]

I’ve noticed some strange behavior on my K3: sometimes on CW in the middle of a 
transmission, the K3 doesn’t switch back to RX mode and the red TX LED stays on 
- lost a few contacts during today's NA CW QSO party as I had to reset the K3 
in the middle of QSOs. Only way to get the receiver going again is to do a 
power cycle (there may be other ways as well, I don’t know). Also I have had 
all characters of the LCD display come on and back off again when turning VFO A 
knob. So if I tune slowly in one direction, the display switches from normal to 
all characters on and back to normal and so on. So something is definitely 
wrong here. How do I solve this problem? The K3 does not operate reliably 
anymore.

Thanks,

Andreas, K6AKW  
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[Elecraft] Elecraft CW Net Announcement

[kevinr]

Good Evening,

    It was a beautiful day to take a hike. Sunny, 50 degrees, with 
spiders building webs in hope of catching the early insects. The bracken 
fern has died back to where the contours of the ground are exposed 
allowing me to find footing with little danger. Normally they range from 
3 feet to 7 feet in height hiding any deadfalls and burrows. I was able 
to break a trail to a nearby intermittent stream. Before the forest had 
been clearcut the stream to my south flowed year round. Now it is 
seasonal until well below my elevation. As the forest regrows it becomes 
steady at ever higher elevations. Great place to build a blind to 
monitor the elk who bed nearby. With the fern die off they are walking 
new trails which I follow. Elk are tall enough to find paths where I 
don’t have to duck; our local Black-tailed deer are much shorter. Often 
their trails coincide but when a branch intervenes the elk walk around 
while the deer duck beneath it. I am lazy, I follow the elk path.


   The sun has sent us some ions, the aurora are active over Hudson 
Bay. Once this storm settles down we may have improved propagation. One 
can never tell. But radio is like fishing: if you don’t make a few casts 
you’ll never catch a fish and if you don’t catch a fish at least you 
were out fishing – can’t beat that.


Please join us tomorrow on:

14050 kHz at 2300z Sunday (3 PM PST Sunday)
  7045 kHz at 0100z Monday (5 PM PST Sunday)

73,
Kevin. KD5ONS

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Re: [Elecraft] Simple threads that take on a life of their own

[Rich Arland]

In a previous posting Sir Terrance of Brown said:


It’s interesting that sometimes a simple thread, usually with a very definitive 
statement of opinion (long wire antennas) generate an incredible number of 
differing opinions ( we hams are that way).  Then the topic morphs slightly and 
as long as Eric is tolerant of such threads covers a lot more topics. In the 
process, for me anyway,  I learn a lot about things that I had never explored 
in depth.


Hear, Hear!!!  Dilly, Dilly!!!  Totally tubular, Dude!


Vy 73 es gud DX!

Rich Arland   K7SZ
Cogito ergo CQ (I think therefore, I HAM)
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Re: [Elecraft] Long wire antennas MORE

[Eric Swartz - WA6HHQ, Elecraft]

And it looks now like we are -way- past the OT posting limit.  :-) Let's wind 
down the 'Long Wire' thread now and give our other Elecraft list readers a rest 
from email overload.

Thread closed.

73,

Eric
Moderator etc.
elecraft.com
_..._

> On Jan 13, 2018, at 6:01 PM, Wes Stewart  wrote:
> 
> I thought to add my two cents then I figured I ain't gonna smack this tar 
> baby.;-)
>> 
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Re: [Elecraft] Long wire antennas MORE

[Wes Stewart]

I thought to add my two cents then I figured I ain't gonna smack this tar 
baby.;-)

On 1/13/2018 1:57 PM, David Gilbert wrote:


"​Isn't Semantics fun?​"

True.  ;)

Well, I rarely get hung up on the terms people use as long as we all know what 
we mean when we call it whatever we are calling it. My problem with the term 
"counterpoise" as applied to an EFHW antenna is that it pretends that the 
extra length of wire is something other than a way to shift the feedpoint 
toward off-center instead of off-end.  In my opinion it's misleading in terms 
of how the thing actually functions.


Dave   AB7E


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[Elecraft] re recommendations for CW paddles under $125

[Bill Heybruck]

I have tried several and now have  2 of  THE BENCHER. I bought used for 
well under 100.


much better than the MFJ copy.

Bill W4EDN

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Re: [Elecraft] Simple threads that take on a life of their own

[David Gilbert]

I learn a lot from arguments whether I'm involved or not.

Dave  AB7E


On 1/13/2018 5:20 PM, Terry Brown wrote:

It’s interesting that sometimes a simple thread, usually with a very definitive 
statement of opinion (long wire antennas) generate an incredible number of 
differing opinions ( we hams are that way).  Then the topic morphs slightly and 
as long as Eric is tolerant of such threads covers a lot more topics. In the 
process, for me anyway,  I learn a lot about things that I had never explored 
in depth.
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Re: [Elecraft] EFHW vs Off-Center Fed Dipole

[David Gilbert]

Take a look at this link by AA6TB where he describes a counterpoise for 
an EFHW.


http://www.aa5tb.com/efha.html  (see Figure 5)

At least in his version, which I believe is the "standard" configuration 
for one, the additional 0.05 wavelength wire is indeed added to the 
length of the antenna.  All it has done is move the secondary of the 
transformer away from the end of the wire to get a lower impedance ... 
just as I described below.  I don't understand why this is so difficult 
to grasp.


Unless the counterpoise you are talking about is connected somewhere 
else in the system?  Primary side of the transformer?  Somewhere else?  
If so I'd like to see a link to a drawing of it and I'd like to have 
somebody explain how it supposedly works because it makes no sense to me 
to put it there.


Otherwise, you are indeed adding length to the antenna on the far side 
of the matching network ... just exactly as if it was an off-center fed 
dipole.


Dave   AB7E



On 1/13/2018 4:55 PM, Bill Johnson wrote:

The 3.5 ft aren't added.  On the transformer, the low gnd side is where the .05' wire is 
added.  It takes care of static and stray capacitance.  I cannot remember the fellow who 
has written volumes about EFHW's and there is clearly a need for this.  Absent a ground 
this works extremely well for portable end feds.  The research was done in the field not 
on a model.  There appears to be some misunderstanding, Dave. EFHW's use a wound 
transformer to match/reduce the impedance seen on the end of the wire.  I had written 
about this in a previous post with very poor sentence structure, using "smart 
phone".

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Gilbert
Sent: Saturday, January 13, 2018 12:22 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] EFHW vs Off-Center Fed Dipole



You can use whatever terms you want, but physically and electrically you are turning the 
EFHW into an off-center fed dipole when you add the "counterpoise" wire beyond 
the feedpoint.  If you don't agree with that you are merely adding to the confusion.

If you add 3.5 feet to a half wave 40 meter dipole it already is no longer a 
true half wave anyway, and you might as well just feed the half wave antenna 
3.5 feet from one end.

Don't believe me?  I modeled a half wave 40m dipole at 70 feet in
EZNEC+.  At 67 feet long and fed at the center the feedpoint impedance
was 66 - j4 ohms.  When I simply moved the feedpoint out to 3.5 feet from one end 
(keeping the total length at 67 feet) the feedpoint impedance became 1509 - j1202.  I 
then added 3.5 feet to the antenna (total of 70.5 feet) and fed it 3.5 feet from one end, 
which in your world would be the EFHW with a 3.5 foot "counterpoise."  The 
feedpoint impedance changed to 3317 - j3115 ohms.  Which do you think would be easier to 
match (or easier to understand)?   The 3D radiation pattern was indistinguishable from 
each other in all three cases, of course.

It doesn't matter what you call it, but if you take a piece of wire and feed it 
some distance from the end you now have an off-center fed dipole ... an extreme 
version possibly, but an off-center fed dipole nonetheless.

In my opinion, the term "counterpoise" is mostly a silly obfuscation.

Dave   AB7E



On 1/13/2018 6:44 AM, Don Wilhelm wrote:

Dave,

All information I have seen says that the counterpoise needed for an
EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet.

If you make it longer than that, it becomes an offset center fed
antenna, longer than a halfwave, in other words, it is a random length
wire.  Both the half wavelength wire and the counterpoise wire will
radiate.

73,
Don W3FPR

On 1/12/2018 7:43 PM, David Gilbert wrote:

Well, since you brought up EFHW there is a relevant comment I've
wanted to make for a while.

An EFHW with a counterpoise wire (which everyone seems to claim is
important to have) is basically just an extreme version of an
off-center fed dipole.  A half wave dipole has its lowest impedance
at the center, where the current is high and the voltage is low.  As
you move out away from the center the current decreases and the
voltage increases, which is equivalent to saying that the impedance
increases.  As you get to the end of the wire the current obviously
goes to near zero except for capacitive currents while the voltage
goes very high ... meaning high impedance.  The "counterpoise" for an
EFHW is merely an extension that puts the feedpoint back toward the
center where the impedance isn't quite as high.  And as with any
dipole, it isn't critical how that "counterpoise" is physically
arrayed because the current there is small so it doesn't affect the
pattern much ... just as is the case with a dipole with drooping ends.

I think if everyone viewed EFHW antennas as off-center-fed dipoles
there would be a lot less confusion about how they work.

[Elecraft] Simple threads that take on a life of their own

[Terry Brown]

It’s interesting that sometimes a simple thread, usually with a very definitive 
statement of opinion (long wire antennas) generate an incredible number of 
differing opinions ( we hams are that way).  Then the topic morphs slightly and 
as long as Eric is tolerant of such threads covers a lot more topics. In the 
process, for me anyway,  I learn a lot about things that I had never explored 
in depth. 
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Re: [Elecraft] EFHW vs Off-Center Fed Dipole

[Bill Johnson]

The 3.5 ft aren't added.  On the transformer, the low gnd side is where the 
.05' wire is added.  It takes care of static and stray capacitance.  I cannot 
remember the fellow who has written volumes about EFHW's and there is clearly a 
need for this.  Absent a ground this works extremely well for portable end 
feds.  The research was done in the field not on a model.  There appears to be 
some misunderstanding, Dave. EFHW's use a wound transformer to match/reduce the 
impedance seen on the end of the wire.  I had written about this in a previous 
post with very poor sentence structure, using "smart phone".  

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Gilbert
Sent: Saturday, January 13, 2018 12:22 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] EFHW vs Off-Center Fed Dipole



You can use whatever terms you want, but physically and electrically you are 
turning the EFHW into an off-center fed dipole when you add the "counterpoise" 
wire beyond the feedpoint.  If you don't agree with that you are merely adding 
to the confusion.

If you add 3.5 feet to a half wave 40 meter dipole it already is no longer a 
true half wave anyway, and you might as well just feed the half wave antenna 
3.5 feet from one end.

Don't believe me?  I modeled a half wave 40m dipole at 70 feet in 
EZNEC+.  At 67 feet long and fed at the center the feedpoint impedance
was 66 - j4 ohms.  When I simply moved the feedpoint out to 3.5 feet from one 
end (keeping the total length at 67 feet) the feedpoint impedance became 1509 - 
j1202.  I then added 3.5 feet to the antenna (total of 70.5 feet) and fed it 
3.5 feet from one end, which in your world would be the EFHW with a 3.5 foot 
"counterpoise."  The feedpoint impedance changed to 3317 - j3115 ohms.  Which 
do you think would be easier to match (or easier to understand)?   The 3D 
radiation pattern was indistinguishable from each other in all three cases, of 
course.

It doesn't matter what you call it, but if you take a piece of wire and feed it 
some distance from the end you now have an off-center fed dipole ... an extreme 
version possibly, but an off-center fed dipole nonetheless.

In my opinion, the term "counterpoise" is mostly a silly obfuscation.

Dave   AB7E



On 1/13/2018 6:44 AM, Don Wilhelm wrote:
> Dave,
>
> All information I have seen says that the counterpoise needed for an 
> EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet.
>
> If you make it longer than that, it becomes an offset center fed 
> antenna, longer than a halfwave, in other words, it is a random length 
> wire.  Both the half wavelength wire and the counterpoise wire will 
> radiate.
>
> 73,
> Don W3FPR
>
> On 1/12/2018 7:43 PM, David Gilbert wrote:
>> Well, since you brought up EFHW there is a relevant comment I've 
>> wanted to make for a while.
>>
>> An EFHW with a counterpoise wire (which everyone seems to claim is 
>> important to have) is basically just an extreme version of an 
>> off-center fed dipole.  A half wave dipole has its lowest impedance 
>> at the center, where the current is high and the voltage is low.  As 
>> you move out away from the center the current decreases and the 
>> voltage increases, which is equivalent to saying that the impedance 
>> increases.  As you get to the end of the wire the current obviously 
>> goes to near zero except for capacitive currents while the voltage 
>> goes very high ... meaning high impedance.  The "counterpoise" for an 
>> EFHW is merely an extension that puts the feedpoint back toward the 
>> center where the impedance isn't quite as high.  And as with any 
>> dipole, it isn't critical how that "counterpoise" is physically 
>> arrayed because the current there is small so it doesn't affect the 
>> pattern much ... just as is the case with a dipole with drooping ends.
>>
>> I think if everyone viewed EFHW antennas as off-center-fed dipoles 
>> there would be a lot less confusion about how they work.
>

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Re: [Elecraft] Long wire antennas MORE

[David Gilbert]

"​Isn't Semantics fun?​"

True.  ;)

Well, I rarely get hung up on the terms people use as long as we all 
know what we mean when we call it whatever we are calling it.  My 
problem with the term "counterpoise" as applied to an EFHW antenna is 
that it pretends that the extra length of wire is something other than a 
way to shift the feedpoint toward off-center instead of off-end.  In my 
opinion it's misleading in terms of how the thing actually functions.


Dave   AB7E


On 1/13/2018 12:45 PM, Don Sanders wrote:


A
​ Rose by any other name is still a Rose.​
​Isn't Semantics fun?​


On Sat, Jan 13, 2018 at 1:37 PM, David Gilbert 
> wrote:




Calling it a counterpoise is a misnomer.

Dave   AB7E







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Re: [Elecraft] K3S and N1MM+ Logger question

[Ian Kahn]

Chuck,

Record your audio files as .WAV files. There is extensive documentation on
the N1MM Logger+ Web site, in the documentation section, on where to place
the audio files in the N1MM Logger+ directories, how to edit the
configuration file for its voice keyer function, and how to configure the
logger and the K3S so they all work properly. I had my K3 set up per these
instructions for a couple of years,and it worked very well. Then, last
year, I finally got the K3DVR board.

Good luck!

73 de,

Ian, KM4IK

On Jan 13, 2018 3:36 PM, "Chuck Chandler"  wrote:

> I am getting my K3S set up for contesting.  So far I have N1MM+ sending CW
> through the USB control.
>
> My question is for setting up voice contesting.  I do not have the K3
> digital voice option yet but I can see that N1MM+ does interface with the
> K3S audio codecs.
>
> Is there a way to use the N1MM+ software to send audio files over the air,
> or to use the K3S to record audio files to be saved and sent later?
>
> 73 de Chuck, WS1L
>
> --
>
>
> ===
> Chuck Chandler
> chandler...@gmail.com
> ===
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[Elecraft] Time for the 3rd Annual K3S Raffle!

[Alan Sewell N5NA]

This is the third year the Midland (TX) Amateur Radio Club is raffling 
off an Elecraft K3S plus MH4 mic.  A maximum of 300 tickets are 
available for only $20 each!


The drawing will be held on March 17, 2018, at the annual St. Patrick's 
Day Hamfest in Midland, TX.


For more information and to purchase a raffle ticket (or many raffle 
tickets!) please visit . The previous years 
lucky winners are also listed.


73 and Good Luck!

Alan N5NA

P.S. This year the Grand Prize for the hamfest is a KX2 plus MH-3 mic!
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[Elecraft] K3S and N1MM+ Logger question

[Chuck Chandler]

I am getting my K3S set up for contesting.  So far I have N1MM+ sending CW
through the USB control.

My question is for setting up voice contesting.  I do not have the K3
digital voice option yet but I can see that N1MM+ does interface with the
K3S audio codecs.

Is there a way to use the N1MM+ software to send audio files over the air,
or to use the K3S to record audio files to be saved and sent later?

73 de Chuck, WS1L

-- 


===
Chuck Chandler
chandler...@gmail.com
===
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Re: [Elecraft] KX3 suddenly putting out no audio on SSB......loud static on FM as usual

[Charlie T]

Although 99% of us have never experienced this, thanks for taking the time to 
point it out, since it just might save a few of us some hair-pulling in the 
future.

73, Charlie k3ICH




-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Tosiello
Sent: Saturday, January 13, 2018 1:44 PM
To: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] KX3 suddenly putting out no audio on SSB..loud 
static on FM as usual

And, of course, as soon as I sent out an email, I figured out that the OFS/VFO 
B knob had been spun WAY out of whack and the RIT/XIT offset was way off. 
Cleared it out and all is well.

Thanks, sorry to take up bandwidth.

Mark KD8EDC

--
___
*“Capitalism is the extraordinary belief that the nastiest of men for the 
nastiest of motives will somehow work together for the benefit of all.”*

 ― John Maynard Keynes
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Re: [Elecraft] recommendations for CW paddles under $125

[Charlie T]

AAARRRHH, my eyeballs are starting to bleed.

Can we just end this endless thread by saying that #1, you get what you pay
for and 
#2, different strokes for different folks.

If not, why not ANOTHER round of what mike to use ???
Or, what antenna works best???
Or, what grass seed works best under a dipole antenna

73, Charlie k3ICH




-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Scott Manthe
Sent: Saturday, January 13, 2018 1:43 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] recommendations for CW paddles under $125

I will second this. Yes, they are well worth the money!

73,
Scott N9AA


On 1/13/18 1:37 PM, Mike Markowski wrote:
> If you can stretch to $165, Kent Engineering paddles ( 
> http://www.kent-engineers.com/ ) are very good.
>
> 73,
> Mike ab3ap
>
> Am 13.01.2018 3:56 nachm. schrieb "Niel Skousen" 
> :
>> so all the HexKey discussion has awakened an itch to ask
>>
>> What's the 'best' paddles under $125 ??
>>
>> Niel
>> WA7SSA
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[Elecraft] K3 extra cable

[Buck]

Belay my previous.  I got ahead of myself.

--
k4ia, Buck
K3# 101
Honor Roll  8B DXCC
EasyWayHamBooks.com
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Re: [Elecraft] Long wire antennas MORE

[Don Sanders]

A
​ Rose by any other name is still a Rose.​
​Isn't Semantics fun?​


On Sat, Jan 13, 2018 at 1:37 PM, David Gilbert 
wrote:

>
>
> Calling it a counterpoise is a misnomer.
>
> Dave   AB7E
>
>
>
>
>>
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[Elecraft] K3 S Extra cable?

[Buck]

New K3S build
Installing SubRx
No 2 meter module
No Rear Panel Aux RF connector

I have an extra 5 inch TMP cable.  Is that correct?
--
k4ia, Buck
K3# 101
Honor Roll  8B DXCC
EasyWayHamBooks.com
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Re: [Elecraft] KX3 suddenly putting out no audio on SSB......loud static on FM as usual

[Dale Boresz]

Hello Mark,

Just a guess, but could your RF Gain have been inadvertently reduced
significantly? That could render CW, SSB and AM inaudible while still
allowing FM hiss, assuming it was not being otherwise squelched.

73,

Dale -- WA8SRA

___
"America's abundance was not created by public sacrifices to 'the common
good', but by the productive genius of free men who pursued their own
personal interests and the making of their own private fortunes."

-- Ayn Rand



On Sat, Jan 13, 2018 at 1:22 PM, Mark Tosiello  wrote:

> Hi,
>
> I have no idea what is going on, but I probably simply misconfigured
> something. I have a KX3/PX3/KXPA100, and I was using it happily yesterday.
> Earlier today, I disconnected it to measure for my pelican case, but
> reconnected everything and double checked the connections as I always do.
> Everything powers up normally including the amp with the special cable, but
> there is COMPLETE silence on SSB and CW modes, and just static on FM as
> usual.. Turned the radio back off and on, nothing. Upgraded the firmware,
> no change. A setting was probably changed last time I used it, but I can't,
> for the life of me, figure out which. The sidetone is nice and loud on CW,
> but tuning up and down on CW or SSB produces nothing but silence, no
> headphone or speaker output at all.
>
> I'd appreciate it if you good folks could help me out.need to get back
> on the air
>
> Thanks!
>
> Mark KD8EDC
>
> --
> ___
> *“Capitalism is the extraordinary belief that the nastiest of men for the
> nastiest of motives will somehow work together for the benefit of all.”*
>
>  ― John Maynard Keynes
>
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Re: [Elecraft] KX3 suddenly putting out no audio on SSB......loud static on FM as usual

[Mark Tosiello]

And, of course, as soon as I sent out an email, I figured out that the
OFS/VFO B knob had been spun WAY out of whack and the RIT/XIT offset was
way off. Cleared it out and all is well.

Thanks, sorry to take up bandwidth.

Mark KD8EDC

-- 
___
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nastiest of motives will somehow work together for the benefit of all.”*

 ― John Maynard Keynes
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Re: [Elecraft] recommendations for CW paddles under $125

[Scott Manthe]

I will second this. Yes, they are well worth the money!

73,
Scott N9AA


On 1/13/18 1:37 PM, Mike Markowski wrote:
If you can stretch to $165, Kent Engineering paddles ( 
http://www.kent-engineers.com/ ) are very good.


73,
Mike ab3ap

Am 13.01.2018 3:56 nachm. schrieb "Niel Skousen" 
:

so all the HexKey discussion has awakened an itch to ask

What's the 'best' paddles under $125 ??

Niel
WA7SSA

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Re: [Elecraft] recommendations for CW paddles under $125

[Mike Markowski]

If you can stretch to $165, Kent Engineering paddles ( 
http://www.kent-engineers.com/ ) are very good.


73,
Mike ab3ap

Am 13.01.2018 3:56 nachm. schrieb "Niel Skousen" 
:

so all the HexKey discussion has awakened an itch to ask

What's the 'best' paddles under $125 ??

Niel
WA7SSA

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Re: [Elecraft] Long wire antennas MORE

[David Gilbert]

You are both perpetuating the confusion here by pretending that these 
are two different forms of antenna.


Of course the "counterpoise" will radiate.  It will radiate energy 
proportional to the current in it, and the longer its length the higher 
the current will be.  That's EXACTLY the same case as for an off-center 
fed antenna ... they are the same thing.  If you drop the end of an 
off-center fed dipole too close to the ground it will waste energy in 
the form of ground losses as well.


Calling it a counterpoise is a misnomer.

Dave   AB7E



On 1/13/2018 9:41 AM, K9MA wrote:

On 1/13/2018 07:44, Don Wilhelm wrote:
All information I have seen says that the counterpoise needed for an 
EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet.


If you make it longer than that, it becomes an offset center fed 
antenna, longer than a halfwave, in other words, it is a random 
length wire.  Both the half wavelength wire and the counterpoise wire 
will radiate. 


True, and the longer the counterpoise, the more it will radiate, right 
into the ground if it's just lying on the ground, so there's really no 
point in a longer counterpoise for the EFHW.


One extreme case is the center-fed full wave, or "two half waves in 
phase".  It has the high feedpoint impedance of the EFHW (actually 
about double) and has a pattern much like a dipole, but sharper.  It 
has a couple dB of gain over a dipole broadside but, of course, less 
gain in other directions.


73,

Scott K9MA



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[Elecraft] OT: Key source

[Ken G Kopp]

Google "Morse Express" ...

FWIW, Kent paddles appeal to many.

73!

Ken - K0PP
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[Elecraft] KX3 suddenly putting out no audio on SSB......loud static on FM as usual

[Mark Tosiello]

Hi,

I have no idea what is going on, but I probably simply misconfigured
something. I have a KX3/PX3/KXPA100, and I was using it happily yesterday.
Earlier today, I disconnected it to measure for my pelican case, but
reconnected everything and double checked the connections as I always do.
Everything powers up normally including the amp with the special cable, but
there is COMPLETE silence on SSB and CW modes, and just static on FM as
usual.. Turned the radio back off and on, nothing. Upgraded the firmware,
no change. A setting was probably changed last time I used it, but I can't,
for the life of me, figure out which. The sidetone is nice and loud on CW,
but tuning up and down on CW or SSB produces nothing but silence, no
headphone or speaker output at all.

I'd appreciate it if you good folks could help me out.need to get back
on the air

Thanks!

Mark KD8EDC

-- 
___
*“Capitalism is the extraordinary belief that the nastiest of men for the
nastiest of motives will somehow work together for the benefit of all.”*

 ― John Maynard Keynes
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Re: [Elecraft] EFHW vs Off-Center Fed Dipole

[David Gilbert]

You can use whatever terms you want, but physically and electrically you 
are turning the EFHW into an off-center fed dipole when you add the 
"counterpoise" wire beyond the feedpoint.  If you don't agree with that 
you are merely adding to the confusion.


If you add 3.5 feet to a half wave 40 meter dipole it already is no 
longer a true half wave anyway, and you might as well just feed the half 
wave antenna 3.5 feet from one end.


Don't believe me?  I modeled a half wave 40m dipole at 70 feet in 
EZNEC+.  At 67 feet long and fed at the center the feedpoint impedance 
was 66 - j4 ohms.  When I simply moved the feedpoint out to 3.5 feet 
from one end (keeping the total length at 67 feet) the feedpoint 
impedance became 1509 - j1202.  I then added 3.5 feet to the antenna 
(total of 70.5 feet) and fed it 3.5 feet from one end, which in your 
world would be the EFHW with a 3.5 foot "counterpoise."  The feedpoint 
impedance changed to 3317 - j3115 ohms.  Which do you think would be 
easier to match (or easier to understand)?   The 3D radiation pattern 
was indistinguishable from each other in all three cases, of course.


It doesn't matter what you call it, but if you take a piece of wire and 
feed it some distance from the end you now have an off-center fed dipole 
... an extreme version possibly, but an off-center fed dipole nonetheless.


In my opinion, the term "counterpoise" is mostly a silly obfuscation.

Dave   AB7E



On 1/13/2018 6:44 AM, Don Wilhelm wrote:

Dave,

All information I have seen says that the counterpoise needed for an 
EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet.


If you make it longer than that, it becomes an offset center fed 
antenna, longer than a halfwave, in other words, it is a random length 
wire.  Both the half wavelength wire and the counterpoise wire will 
radiate.


73,
Don W3FPR

On 1/12/2018 7:43 PM, David Gilbert wrote:
Well, since you brought up EFHW there is a relevant comment I've 
wanted to make for a while.


An EFHW with a counterpoise wire (which everyone seems to claim is 
important to have) is basically just an extreme version of an 
off-center fed dipole.  A half wave dipole has its lowest impedance 
at the center, where the current is high and the voltage is low.  As 
you move out away from the center the current decreases and the 
voltage increases, which is equivalent to saying that the impedance 
increases.  As you get to the end of the wire the current obviously 
goes to near zero except for capacitive currents while the voltage 
goes very high ... meaning high impedance.  The "counterpoise" for an 
EFHW is merely an extension that puts the feedpoint back toward the 
center where the impedance isn't quite as high.  And as with any 
dipole, it isn't critical how that "counterpoise" is physically 
arrayed because the current there is small so it doesn't affect the 
pattern much ... just as is the case with a dipole with drooping ends.


I think if everyone viewed EFHW antennas as off-center-fed dipoles 
there would be a lot less confusion about how they work. 




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Re: [Elecraft] recommendations for CW paddles under $125

[Don Wilhelm]

Neil,

That all depends on your interpretation of "best".  Please provide the 
parameters for what you want in your paddles, and you will likely 
receive a better answer.
I think my N3ZN single lever paddle is best for me, but it certainly 
cost a lot more than $125.
There is a lot of personal tradeoffs that depend on a lot of things 
related to your tactile sensation.  Some would be able to homebrew 
paddles from 2 hacksaw blades and some contacts salvaged from relays, 
while others would never be happy with something like that.
You might want to peruse the portable paddles used by QRPers if you are 
into obtaining effective paddles at a low price.
If you have the Elecraft KX2 or KX3, you might want to consider the 
KXPD2 or KXPD3 - both are under your target price.


73,
Don W3FPR

On 1/13/2018 9:55 AM, Niel Skousen wrote:

so all the HexKey discussion has awakened an itch to ask

What's the 'best' paddles under $125 ??

Niel
WA7SSA
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Re: [Elecraft] Long wire antennas MORE

[Don Wilhelm]

I once heard LB Cebik give a 'balloon' analogy of directional or gain 
antennas.
He said the radiation pattern is like a balloon - you have to squeeze it 
somewhere to get it to expand in another direction.  There is no overall 
gain, it just directs the radiation in one or more directions at the 
expense of other directions.


73,
Don W3FPR

On 1/13/2018 11:41 AM, K9MA wrote:


One extreme case is the center-fed full wave, or "two half waves in 
phase".  It has the high feedpoint impedance of the EFHW (actually about 
double) and has a pattern much like a dipole, but sharper.  It has a 
couple dB of gain over a dipole broadside but, of course, less gain in 
other directions.

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Re: [Elecraft] Mixer for audio

[Jim Brown]

On 1/13/2018 4:19 AM, G4GNX wrote:
Has anyone else done this and can recommend a unit that's as RF proof 
as possible.


I would start with any model of Rane or Mackie manufactured AFTER about 
1998. That's around the time that both companies acknowledged their Pin 
One Problems and corrected them. I'm recommending these companies 
because their products don't have this problem. Most other products DO.


73, Jim K9YC

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Re: [Elecraft] recommendations for CW paddles under $125

[Hajo Dezelski]

Hi,

you can't go wrong with the paddles from Palm Radio. In former times I used
the Mini Paddles but switched to the Palm Single and Pico Single. They are
reliable at every speed and you can adjust them to a very low pressure.

73 de

Hajo dl1sdz

---
Cela est bien dit, mais il faut cultiver notre jardin.


http://hajos-kontrapunkte.blogspot.de/



Am 13.01.2018 3:56 nachm. schrieb "Niel Skousen" :

> so all the HexKey discussion has awakened an itch to ask
>
> What's the 'best' paddles under $125 ??
>
> Niel
> WA7SSA
> __
> Elecraft mailing list
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Re: [Elecraft] K3 NO ATU ?!?!?1

[Jamie WW3S]

its in CONFIG, but when I press ATU it says NOT INSTALLED.

-Original Message- 
From: Nr4c

Sent: Saturday, January 13, 2018 11:47 AM
To: Jamie WW3S
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 NO ATU ?!?!?1

Look in manual about installing. Your Configuration may be confused or you 
may have accidentally in-installed it in Configuration.


Sent from my iPhone
...nr4c. bill



On Jan 13, 2018, at 11:43 AM, Jamie WW3S  wrote:

All of a sudden, my K3, that SHOULD have an ATU, is displaying NO ATU when 
I try to tune an antenna, no sure what got discombulated

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---
This email has been checked for viruses by AVG.
http://www.avg.com 


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Re: [Elecraft] K3 NO ATU ?!?!?1

[Bob McGraw K4TAX]

One thing I  do is make a configuration backup using the Utility.  I 
think is saves this type of data.  In any event, when I get things 
messed up for some unknown reason {usually mine}, I just revert to the 
backup and restore the radio.  All is then well.


Usually do my backups for the radio and computer and a couple of other 
devices, at least once per week.   More than once I have found that has 
this saved my hide.


73

Bob, K4TAX


On 1/13/2018 10:47 AM, Nr4c wrote:

Look in manual about installing. Your Configuration may be confused or you may 
have accidentally in-installed it in Configuration.

Sent from my iPhone
...nr4c. bill



On Jan 13, 2018, at 11:43 AM, Jamie WW3S  wrote:

All of a sudden, my K3, that SHOULD have an ATU, is displaying NO ATU when I 
try to tune an antenna, no sure what got discombulated
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Re: [Elecraft] K3 NO ATU ?!?!?1

[Nr4c]

Look in manual about installing. Your Configuration may be confused or you may 
have accidentally in-installed it in Configuration. 

Sent from my iPhone
...nr4c. bill


> On Jan 13, 2018, at 11:43 AM, Jamie WW3S  wrote:
> 
> All of a sudden, my K3, that SHOULD have an ATU, is displaying NO ATU when I 
> try to tune an antenna, no sure what got discombulated
> __
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[Elecraft] K3 NO ATU ?!?!?1

[Jamie WW3S]

All of a sudden, my K3, that SHOULD have an ATU, is displaying NO ATU when I 
try to tune an antenna, no sure what got discombulated
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Re: [Elecraft] Long wire antennas MORE

[K9MA]

On 1/13/2018 07:44, Don Wilhelm wrote:
All information I have seen says that the counterpoise needed for an 
EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet.


If you make it longer than that, it becomes an offset center fed 
antenna, longer than a halfwave, in other words, it is a random length 
wire.  Both the half wavelength wire and the counterpoise wire will 
radiate. 


True, and the longer the counterpoise, the more it will radiate, right 
into the ground if it's just lying on the ground, so there's really no 
point in a longer counterpoise for the EFHW.


One extreme case is the center-fed full wave, or "two half waves in 
phase".  It has the high feedpoint impedance of the EFHW (actually about 
double) and has a pattern much like a dipole, but sharper.  It has a 
couple dB of gain over a dipole broadside but, of course, less gain in 
other directions.


73,

Scott K9MA

--
Scott  K9MA

k...@sdellington.us

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Re: [Elecraft] Recomendations for paddles

[Roy Koeppe]

Just my idea maybe...if you do not plan to squeeze key, then I think a 
single-lever version is superior. In simple terms, 'the finger piece can 
only be in one place at a time.'


73,  Roy   K6XK 



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Re: [Elecraft] recommendations for CW paddles under $125

[Bob McGraw K4TAX]

In the words of another highly regarded ham."what ever makes you 
feel comfortable is always best".   Personally I'm pleased with my 
Vibroplex Iambic paddle.  Don't remember what it cost, but are the 
standard model, no chrome base just texture grey finish but with 
upgraded jewel movements.


73

Bob, K4TAX


On 1/13/2018 9:23 AM, rich hurd WC3T wrote:

It depends on your requirements.  :)

On Sat, Jan 13, 2018 at 9:55 AM, Niel Skousen 
wrote:


so all the HexKey discussion has awakened an itch to ask

What's the 'best' paddles under $125 ??

Niel
WA7SSA
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Re: [Elecraft] recommendations for CW paddles under $125

[rich hurd WC3T]

It depends on your requirements.  :)

On Sat, Jan 13, 2018 at 9:55 AM, Niel Skousen 
wrote:

> so all the HexKey discussion has awakened an itch to ask
>
> What's the 'best' paddles under $125 ??
>
> Niel
> WA7SSA
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-- 
---
72,
Rich Hurd / WC3T / DMR: 3142737
PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*
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[Elecraft] recommendations for CW paddles under $125

[Niel Skousen]

so all the HexKey discussion has awakened an itch to ask

What's the 'best' paddles under $125 ??

Niel
WA7SSA
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Re: [Elecraft] Mixer for audio

[Russ]

Alan
I will be installing a Rolls MX28 mixer today for monitoring SO2R with a second 
Rx - a JRC NRD 525.
Ill let the group know how it goes
Russ KD4JO



Sent from my T-Mobile 4G LTE Device


 Original message 
From: G4GNX 
Date: 1/13/18 7:20 AM (GMT-05:00)
To: elecraft@mailman.qth.net
Subject: [Elecraft] Mixer for audio

I want to setup an audio mixer facility so that I can have at least on
stereo headphone output and/or a stereo speaker output. That's the easy end.
:-)

I want to feed it with inputs from the K3S, IC7100, SDR output from a PC and
possibly a Wouxun multi-band VHF. So a device with at least 4 stereo inputs
and appropriate level controls.

Has anyone else done this and can recommend a unit that's as RF proof as
possible. I'm not averse to using a few ferrites, but the system has to be
clean with 400W HF near it, as I need to listen to the SDR whilst
transmitting.

Thoughts on how to connect it would also be appreciated, bearing in mind
that AFAICR the Wouxun only has a low impedance speaker outlet and all
others must be stereo.

73,

Alan. G4GNX

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Re: [Elecraft] Long wire antennas MORE

[Don Wilhelm]

Dave,

All information I have seen says that the counterpoise needed for an 
EFHW is 0.05 wavelength - at 40 meters, that is about 3.5 feet.


If you make it longer than that, it becomes an offset center fed 
antenna, longer than a halfwave, in other words, it is a random length 
wire.  Both the half wavelength wire and the counterpoise wire will radiate.


73,
Don W3FPR

On 1/12/2018 7:43 PM, David Gilbert wrote:
Well, since you brought up EFHW there is a relevant comment I've wanted 
to make for a while.


An EFHW with a counterpoise wire (which everyone seems to claim is 
important to have) is basically just an extreme version of an off-center 
fed dipole.  A half wave dipole has its lowest impedance at the center, 
where the current is high and the voltage is low.  As you move out away 
from the center the current decreases and the voltage increases, which 
is equivalent to saying that the impedance increases.  As you get to the 
end of the wire the current obviously goes to near zero except for 
capacitive currents while the voltage goes very high ... meaning high 
impedance.  The "counterpoise" for an EFHW is merely an extension that 
puts the feedpoint back toward the center where the impedance isn't 
quite as high.  And as with any dipole, it isn't critical how that 
"counterpoise" is physically arrayed because the current there is small 
so it doesn't affect the pattern much ... just as is the case with a 
dipole with drooping ends.


I think if everyone viewed EFHW antennas as off-center-fed dipoles there 
would be a lot less confusion about how they work. 

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[Elecraft] Mixer for audio

[G4GNX]

I want to setup an audio mixer facility so that I can have at least on 
stereo headphone output and/or a stereo speaker output. That's the easy end. 
:-)


I want to feed it with inputs from the K3S, IC7100, SDR output from a PC and 
possibly a Wouxun multi-band VHF. So a device with at least 4 stereo inputs 
and appropriate level controls.


Has anyone else done this and can recommend a unit that's as RF proof as 
possible. I'm not averse to using a few ferrites, but the system has to be 
clean with 400W HF near it, as I need to listen to the SDR whilst 
transmitting.


Thoughts on how to connect it would also be appreciated, bearing in mind 
that AFAICR the Wouxun only has a low impedance speaker outlet and all 
others must be stereo.


73,

Alan. G4GNX

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