Re: [Elecraft] K2 with KPA-100

2018-12-19 Thread Don Wilhelm

Brian,

Even though the KAT2 and the KPA100 are present in the "Twins" 
configuration, when the K2 MCU detects the presence of the KPA100, the 
KAT2 is bypassed and set to connect only to ANT1.

In other words, the KAT2 will not work with the KPA100 present.

If an ATU is required with the KPA100 in-line, the KAT100  or other ATU 
between the KPA100 output and the antenna is necessary.


Yes, the KAT2 is rated at up to 20 watts.  The KAT100 is rated at up to 
about 150 watts.


73,
Don W3FPR

On 12/19/2018 11:24 PM, Brian Denley wrote:

..unless you build it in the ‘Twins’ configuration.  Then you have the KAT2 and 
KAT100 both available in the system along with the KPA100.  But you need 
another EC2 enclosure.

Brian
KB1VBF
Sent from my iPad


On Dec 19, 2018, at 9:04 PM, Neil Zampella  wrote:

Gene ...

if you were planning to buy a K2 kit,  you should do that.   It was a pleasure, 
and a lot of fun to put together.   The KAT2 will not work with the KPA100 
option for the reason Don pointed out also, and Don correct me if I'm wrong, 
I'm not sure its rated for more than 20w.

The KAT100 is a great option, and is designed to sit below the K2/100.   If you 
need pictures, you can check out my K2 build pics here:


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Re: [Elecraft] K2 with KPA-100

2018-12-19 Thread Brian Denley
..unless you build it in the ‘Twins’ configuration.  Then you have the KAT2 and 
KAT100 both available in the system along with the KPA100.  But you need 
another EC2 enclosure.

Brian
KB1VBF
Sent from my iPad

> On Dec 19, 2018, at 9:04 PM, Neil Zampella  wrote:
> 
> Gene ...
> 
> if you were planning to buy a K2 kit,  you should do that.   It was a 
> pleasure, and a lot of fun to put together.   The KAT2 will not work with the 
> KPA100 option for the reason Don pointed out also, and Don correct me if I'm 
> wrong, I'm not sure its rated for more than 20w.
> 
> The KAT100 is a great option, and is designed to sit below the K2/100.   If 
> you need pictures, you can check out my K2 build pics here:
> 
> http://nz1951.com/2-uncategorised/2-elecraft-k2-build
> 
> Neil, KN3ILZ
> 
>> On 12/19/2018 5:18 PM, Gene O wrote:
>> I should have first stated that I do not have any K2 or any amplifiers or 
>> tuners.  Just asking questions in anticipation of getting a K2. Reading 
>> manuals and seeing photos of k2s is not as good as seeing the actual unit.
>> 
>> I am aware that the top of the KPA-100 is a black fined heat sink.  I was 
>> not aware that the KAT2 could not fit below it.
>> 
>> Now I know why Elecraft came out with the K3. Confusion reigns at least for 
>> me.  Think I will just get a KX3 which is very much like my K3 which I have 
>> had for over 10 years.
>> 
>> Thanks to every one who responded.
>> 
>> 73, Gene W2BXR
>> 
>> 
> 
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Re: [Elecraft] wire for random wire antenna using kx3

2018-12-19 Thread W2xj
Shortwave transmitters tend to live very long lives. 

Sent from my iPhone

> On Dec 19, 2018, at 19:13, Phil Kane  wrote:
> 
>> On 12/19/2018 3:25 PM, W2xj wrote:
>> 
>> must have been an old tx. The ones dating back around 60 years had
>> front panel cranks and newer models did changes automatically.
> 
> He actually had to go into the cage and change taps on coils.  I don't
> remember the age/model of the TX but it was in service in the early
> 1980s as I remember it.
> 
> 73 de K2ASP - Phil Kane
> Elecraft K2/100   s/n 5402
> 
> From a Clearing in the Silicon Forest
> Beaverton (Washington County) Oregon
> 
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[Elecraft] Elecraft SSB Net for Sunday, December 16, 2018

2018-12-19 Thread Jim White NC0JW
Eric WB9JNZ, our normal net control station, promises to be back in the saddle 
next week.  In his absence  we managed to log 23 check ins with the much 
appreciated assistance from Steve WM6P, Roger N4NRW, and Bill AE6JV.

Sunday’s check ins included:

WM6PSteve   GA  K3S 11453
N4NRW   Roger   SC  K3  1318
KE0RFZ  Ben NM  Kenwood TS-120
W1NGA   Al  CO  K3  5765
N6PGQ   Bob CA  K3  5891
KG5WEO  Tom TX  KX3 10175
N0MPM   MikeIA  K3S 10514
AE6JV   BillCA  K3  6299
K7BRR   BillAZ  K3S 10939
VE7GZ   FernBC  K3  412
W9PCS   PaulWI  K3S 10752
W7QHD   KurtAZ  K2  1538
K6VWE   StanMI  K3  650
W4DML   DougTN  K3  6433
W7ASY   Tim NV  Kenwood TS-690
WA5DSS  BillTX  K3S 10835
N7BDL   Terry   AZ  K3S 10373
W7REK   GlenK3  K3  2843
K7DIP/KH6   BurtHI  Icom 756 Pro2
K7JGJohnWA  KX3 3519
KG6MH   RichCA  MFJ QRP 10 watts
K6FWFrank   CA  K3S 11652
NC0JW   Jim CO  KX3 1356

As a reminder the Elecraft SSB Net meets every Sunday at 1800 UTC on or about 
14.3035 MHz.  Our Net Control Station is Eric WB9JNZ in Chicago, IL.  With 
propagation being a bit tricky these days we employ several relay stations 
located through out the continental USA.  As conditions permit we take 
questions and comments after our check ins.  Stop by, check the propagation, 
and say Hi.

Jim White - NC0JW
Colorado Springs, CO






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

2018-12-19 Thread Phil Kane
On 12/19/2018 3:25 PM, W2xj wrote:

> must have been an old tx. The ones dating back around 60 years had
> front panel cranks and newer models did changes automatically.

He actually had to go into the cage and change taps on coils.  I don't
remember the age/model of the TX but it was in service in the early
1980s as I remember it.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] Opportunism, bravery, insanity: putting the "eXtreme" in Elecraft's KX and AX gear

2018-12-19 Thread Rick Bates (WA6NHC)
It’s also a growing, dynamic therefore unstable collection of code.  Wait for 
it to mature. 

Rick WA6NHC

Smell Czech correction happen

> On Dec 19, 2018, at 5:55 PM, Neil Zampella  wrote:
> 
> FWIW ... easier said than done, there's a lot more to it than there is to CW, 
> RTTY, or even PSK.
> 
> Neil, KN3ILZ
> 
>> On 12/19/2018 9:44 AM, Andy McMullin wrote:
>> I’d vote for that idea too!
>> 
>> Regards
>> Andy, G8TQH
>> 
>>> On 19 Dec 2018, at 14:36, Bob N3MNT  wrote:
>>> 
>>> Maybe add WSJT-X capability to PX3
>>> 
>>> 
>>> 
>>> --
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>> 
> 
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Re: [Elecraft] K2 with KPA-100

2018-12-19 Thread Neil Zampella

Gene ...

if you were planning to buy a K2 kit,  you should do that.   It was a 
pleasure, and a lot of fun to put together.   The KAT2 will not work 
with the KPA100 option for the reason Don pointed out also, and Don 
correct me if I'm wrong, I'm not sure its rated for more than 20w.


The KAT100 is a great option, and is designed to sit below the K2/100.   
If you need pictures, you can check out my K2 build pics here:


http://nz1951.com/2-uncategorised/2-elecraft-k2-build

Neil, KN3ILZ

On 12/19/2018 5:18 PM, Gene O wrote:
I should have first stated that I do not have any K2 or any amplifiers 
or tuners.  Just asking questions in anticipation of getting a K2. 
Reading manuals and seeing photos of k2s is not as good as seeing the 
actual unit.


I am aware that the top of the KPA-100 is a black fined heat sink.  I 
was not aware that the KAT2 could not fit below it.


Now I know why Elecraft came out with the K3. Confusion reigns at 
least for me.  Think I will just get a KX3 which is very much like my 
K3 which I have had for over 10 years.


Thanks to every one who responded.

73, Gene W2BXR




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Re: [Elecraft] Opportunism, bravery, insanity: putting the "eXtreme" in Elecraft's KX and AX gear

2018-12-19 Thread Neil Zampella
FWIW ... easier said than done, there's a lot more to it than there is 
to CW, RTTY, or even PSK.


Neil, KN3ILZ

On 12/19/2018 9:44 AM, Andy McMullin wrote:

I’d vote for that idea too!

Regards
Andy, G8TQH


On 19 Dec 2018, at 14:36, Bob N3MNT  wrote:

Maybe add WSJT-X capability to PX3



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

2018-12-19 Thread W2xj
must have been an old tx. The ones dating back around 60 years had front panel 
cranks and newer models did changes automatically. 

Sent from my iPad

> On Dec 19, 2018, at 2:40 PM, Phil Kane  wrote:
> 
>> On 12/18/2018 10:35 AM, W2xj wrote:
>> 
>> I was referring to ham tuners but shortwave broadcast stations QSY
>> with hundreds of kilowatts many times a day.
> 
> And a former friend who was one of th station operators at KGEI (SW
> station now defunct) had the record time for changing bands on the 100
> KW TX.  Even though the 100 was off the air, the 250 KW was still on the
> air on yet another band so rubber mats, grounding sticks, and gloves
> were the order of the day.
> 
> 73 de K2ASP - Phil Kane
> Elecraft K2/100   s/n 5402
> 
> From a Clearing in the Silicon Forest
> Beaverton (Washington County) Oregon
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[Elecraft] OT: Trickle Chargers

2018-12-19 Thread Doug Hensley
I'm a past customer of Keyline trickle chargers and in the past few days have 
been in touch with Customer Service there.  I inquired as to what changes were 
made in their announcing they have re-done their small chargers and why they 
think the new versions are much better.  I'm referring to the 1.25 A/Hr and 
0.75 A/Hr units.  Matt responded for Keyline this way:
[https://ssl.gstatic.com/ui/v1/icons/mail/profile_mask2.png]
i...@keylinechargers.com

3:25 PM (1 hour ago)
to me
[https://mail.google.com/mail/u/0/images/cleardot.gif]

Hi Doug,
Should be the same cost unless you purchased them directly from Amazon which 
marks up the price if we are not selling them directly at the time.  Regarding 
the improvement, almost every internal component has been upgraded from new or 
existing suppliers. The burn in time has been tripled and the reliability is 
now at a .001 failure rate.

Thanks,
Matt

For anyone looking at this area, I thought this would be good information to 
know.  Don Wilhelm kindly rewired by K2 so that I could keep the internal 
battery on a trickle charger.   Works great.

Cheers & Merry Christmas to everyone,


Doug W5JV
K1, K2, K3s's




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Re: [Elecraft] K2 with KPA-100

2018-12-19 Thread Fred Jensen
Well, proceed as you must Gene, but building and operating a K2 is an 
experience in radio like no other.  And "Mr. K2" [Don] is always here to 
help.


73,
Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 12/19/2018 2:18 PM, Gene O wrote:
I should have first stated that I do not have any K2 or any amplifiers 
or tuners.  Just asking questions in anticipation of getting a K2. 
Reading manuals and seeing photos of k2s is not as good as seeing the 
actual unit.


I am aware that the top of the KPA-100 is a black fined heat sink.  I 
was not aware that the KAT2 could not fit below it.


Now I know why Elecraft came out with the K3. Confusion reigns at 
least for me.  Think I will just get a KX3 which is very much like my 
K3 which I have had for over 10 years.


Thanks to every one who responded.

73, Gene W2BXR


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

2018-12-19 Thread W2xj
but phasors are not matching networks. theoretically they are 50 ohms in and 50 
ohms out although in reality that is not quite the case. in any rate the high 
power sites i have built has the phasor at the highest power tower.  at some 
sites i put the phasor in its own building at the center of the array. 

Sent from my iPad

> On Dec 19, 2018, at 2:18 PM, Phil Kane  wrote:
> 
>> On 12/17/2018 7:45 PM, W2xj wrote:
>> 
>> Coming from the broadcast side, especially AM broadcasting, I never
>> considered resonance particularly important. Really it’s just the
>> transmitter that cares. We always put matching at the antenna but in
>> ham radio we usually have tuners at or in the TX.
> 
> Ah, but the phaser (matching networks) for AM broadcast directional
> arrays usually is located at or near the transmitter - or at least they
> were when I dealt with AMers in the 1960s-1990s.
> 
> 73 de K2ASP - Phil Kane
> Elecraft K2/100   s/n 5402
> 
> From a Clearing in the Silicon Forest
> Beaverton (Washington County) Oregon
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Re: [Elecraft] wire for random wire antenna using kx3

2018-12-19 Thread Phil Kane
On 12/18/2018 10:35 AM, W2xj wrote:

> I was referring to ham tuners but shortwave broadcast stations QSY
> with hundreds of kilowatts many times a day.

And a former friend who was one of th station operators at KGEI (SW
station now defunct) had the record time for changing bands on the 100
KW TX.  Even though the 100 was off the air, the 250 KW was still on the
air on yet another band so rubber mats, grounding sticks, and gloves
were the order of the day.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Nr4c
If you’re using a BALUN is it saturating or ha anything changed in your antenna 
system?  Connectors checked for tightness?

Sent from my iPhone
...nr4c. bill


> On Dec 19, 2018, at 2:13 PM, Bob McGraw K4TAX  wrote:
> 
> I just performed a transmit test on 10M with my radio.   CW mode, key closed, 
> 100 watts into dummy load, PA current 17.38A as indicated on the radio, PA 
> voltage 13.6 volts as indicated on the radio.  After a 2 minute key closed 
> period the PA temp was 56 C and stable.  Fans stepped to max.
> 
> Same test on 80M.  PA current 18.3A , PA voltage 13.5V and PA settled at 57 
> C.  Fans stepped to max.
> 
> Also ran 10M RTTY / AFSK at 100 watts out with a 1 minute transmission and 
> observed about the same as above.
> 
> The 15 second transmit / receive cycle sounds like WSJT-X and FT-8 mode or 
> MSK-144 mode {not normally used on 10M}Normally I do not run any analog 
> digital mode at 100 watts due to a bit of compression that appears to occur 
> in the PA stage. My suggestion, as I do, run 50 to 75 watts with analog 
> data. Likewise with the KPA500, about 300 to 400 watts max for analog data 
> signals.
> 
> In working SSB do you get reports of "fuzzy audio" or with PSK-31 get reports 
> of poor IMD ?  If so I would suspect an issue with the KPA3A.Consult 
> Elecraft Tech Support.
> 
> 73
> 
> Bob, K4TAX
> 
> 
>> On 12/19/2018 10:34 AM, Robert Harvey wrote:
>> Hi Bob and Don:
>> 
>> Actually, I am not transmitting data at anywhere near that length of time.  
>> I am talking about a 10-15 second transmission in which I notice this.
>> 
>> Just some observations:
>> 
>> 1.  There is no cooling fan obstruction and they run normally as far as I've 
>> been able to observe.
>> 2.  This is a new problem.
>> 3.  The power supply is delivering 14.0 volts under load, with a line drop 
>> of .2 volts on transmit.
>> 4.  This occurs into a dummy load, or any one of three matched antennas.  
>> Even bypassing tuners into the DL or antennas shows this same effect.
>> 5.  The antenna system SWR is steady, both on the DL and on the antenna's 
>> while this is taking place.
>> 
>> If this is more or less normal behavior on 10M, and not indicative of 
>> bandpass filter failure or imminent failure, I can live with it.  I can run 
>> the KPA500, which only requires about 20W input on 10M to get full output, 
>> so I am not concerned about loss of signal all that much.
>> 
>> Thanks and 73!
>> 
>> Harv
>> K2PI
>> 
>> 
>> -Original Message-
>> From: Bob McGraw K4TAX [mailto:rmcg...@blomand.net]
>> Sent: Wednesday, December 19, 2018 1

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

2018-12-19 Thread Phil Kane
On 12/17/2018 7:45 PM, W2xj wrote:

> Coming from the broadcast side, especially AM broadcasting, I never
> considered resonance particularly important. Really it’s just the
> transmitter that cares. We always put matching at the antenna but in
> ham radio we usually have tuners at or in the TX.

Ah, but the phaser (matching networks) for AM broadcast directional
arrays usually is located at or near the transmitter - or at least they
were when I dealt with AMers in the 1960s-1990s.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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[Elecraft] K2 with KPA-100

2018-12-19 Thread Gene O
I should have first stated that I do not have any K2 or any amplifiers 
or tuners.  Just asking questions in anticipation of getting a K2. 
Reading manuals and seeing photos of k2s is not as good as seeing the 
actual unit.


I am aware that the top of the KPA-100 is a black fined heat sink.  I 
was not aware that the KAT2 could not fit below it.


Now I know why Elecraft came out with the K3. Confusion reigns at least 
for me.  Think I will just get a KX3 which is very much like my K3 which 
I have had for over 10 years.


Thanks to every one who responded.

73, Gene W2BXR

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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Don Wilhelm

Harv,

Can you please report your current draw, temperature, etc. in a similar 
manner to what Bob observed when he tested his K3S.


Maybe with that data, we can make some recommendations.

73,
Don W3FPR

On 12/19/2018 4:26 PM, Robert Harvey wrote:

Hi:

Thanks for the information Bob.  No, I don't receive poor audio reports, and 
yes, I was testing with FT8 on 10M this morning, but I have also notice similar 
symptoms on CW.

I will keep an eye on it, but it sounds like yours is "normal", and mine less 
so.


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

2018-12-19 Thread Phil Kane
On 12/17/2018 2:43 PM, W2xj wrote:

> Remember this IS a hobby and to each their own. As an engineer, I do
> model and design what I use. I hate the “by guess and by golly”
> approach. Everything I do is carefully planned in advance and is a
> part of my enjoyment of the hobby but YMMV.

I too am an engineer, senior manager of a consulting engineering firm,
but I separate my hobbies from my work.  Keeps me sane.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] wire for random wire antenna using kx3

2018-12-19 Thread Phil Kane
On 12/17/2018 11:03 AM, Fred Jensen wrote:

> Larson E. Rapp is using an alias now?

Haven't seen that author attribution for decades.  Shows my age.  :)

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Bob McGraw K4TAX
I just performed a transmit test on 10M with my radio.   CW mode, key 
closed, 100 watts into dummy load, PA current 17.38A as indicated on the 
radio, PA voltage 13.6 volts as indicated on the radio.  After a 2 
minute key closed period the PA temp was 56 C and stable.  Fans stepped 
to max.


Same test on 80M.  PA current 18.3A , PA voltage 13.5V and PA settled at 
57 C.  Fans stepped to max.


Also ran 10M RTTY / AFSK at 100 watts out with a 1 minute transmission 
and observed about the same as above.


The 15 second transmit / receive cycle sounds like WSJT-X and FT-8 mode 
or MSK-144 mode {not normally used on 10M}    Normally I do not run any 
analog digital mode at 100 watts due to a bit of compression that 
appears to occur in the PA stage.     My suggestion, as I do, run 50 to 
75 watts with analog data. Likewise with the KPA500, about 300 to 400 
watts max for analog data signals.


In working SSB do you get reports of "fuzzy audio" or with PSK-31 get 
reports of poor IMD ?  If so I would suspect an issue with the KPA3A.    
Consult Elecraft Tech Support.


73

Bob, K4TAX


On 12/19/2018 10:34 AM, Robert Harvey wrote:

Hi Bob and Don:

Actually, I am not transmitting data at anywhere near that length of time.  I 
am talking about a 10-15 second transmission in which I notice this.

Just some observations:

1.  There is no cooling fan obstruction and they run normally as far as I've 
been able to observe.
2.  This is a new problem.
3.  The power supply is delivering 14.0 volts under load, with a line drop of 
.2 volts on transmit.
4.  This occurs into a dummy load, or any one of three matched antennas.  Even 
bypassing tuners into the DL or antennas shows this same effect.
5.  The antenna system SWR is steady, both on the DL and on the antenna's while 
this is taking place.

If this is more or less normal behavior on 10M, and not indicative of bandpass 
filter failure or imminent failure, I can live with it.  I can run the KPA500, 
which only requires about 20W input on 10M to get full output, so I am not 
concerned about loss of signal all that much.

Thanks and 73!

Harv
K2PI


-Original Message-
From: Bob McGraw K4TAX [mailto:rmcg...@blomand.net]
Sent: Wednesday, December 19, 2018 10:43 AM
To: Gadget Lust
Cc: donw...@embarqmail.com
Subject: Re: [Elecraft] k3 High Current Message on 10 meters

Harv:

Per the manual the transmitter is rated at 100% duty cycle for CW and
SSB modes.   This is for 10 minutes key down.  Then it should be in
standby for 10 minutes.  I do agree with Don that RTTY at 100 watts is
likely above the duty cycle rating.As temperature increases so does
current.   Which makes for more heat.Most radios and amps are rated
at 50% duty cycle for carrier modes such as RTTY.   Most RTTY operations
I've observed do transmit a lot more than receive.

You haven't indicated but is this a new problem or just a problem
observed?  Other bands the KPA3A is more efficient and will produce less
heat than on 10M.  In fact 6M has restrictions on power level where
power should be reduced to 85 watts or 70 watts depending on segment of
the band.

Fans, ..cooling is the key factor.   What temp is the PA running
under these conditions?   Has the temperature calibration been done?
Also are the fans ramping up as they should?  Is the power supply
delivering 13.8 to 14.8 under load?   If it is low the PA will draw more
current to produce 100 watts.

Just a few thoughts.

"Duty Cycle:  CW and SSB modes, 100% 10-min. 100 W key-down at 25 C
ambient".

73

Bob, K4TAX


On 12/19/2018 9:07 AM, Gadget Lust wrote:

HI Don:

Understood, but the K3 is rated for full duty cycle on those modes, and this is 
a new issue.  I can certainly run it way under that and turn on the KPA500, but 
still worry something is going south.

73
Harv
K2PI

Sent from Mail for Windows 10

From: Don Wilhelm
Sent: Wednesday, December 19, 2018 10:05 AM
To: Gadget Lust; elecraft@mailman.qth.net
Subject: Re: [Elecraft] k3 High Current Message on 10 meters

Harv,

I think the key is what you said about "long cycles modes like RTTY".
Things heat up in those instances and the current will increase.  The
only 'cure' is to reduce power.  I would suggest running RTTY at a power
level of 50% of the CW/SSB rating for the transmitter.

73,
Don W3FPR

On 12/19/2018 9:53 AM, Gadget Lust wrote:

Hi Don:

Actually, my issue is only on 10M.  It appears that as I transmit,
current consumption increases, and I get occasional high current
messages.  This is more apparent on long duty cycle modes like RTTY,
and at higher power levels (80-100W).  If I watch, I can see current
consumption start at 16 amps, and slowly rise to 25-27 amps.

I performed a TX gain Cal successfully, and that made it a bit more
stable (only rising to 20 or 21 amps now), but it still concerns me.
A friend suggested this may be blown coils in the output bandpass
filters.  I can wrap new coils if needed, but don’t want to do this if
that’s not the problem.




Re: [Elecraft] Swiss Army Knife

2018-12-19 Thread Phil Kane
On 12/18/2018 5:41 PM, Brian Denley wrote:

> I got my Swiss Army Knife on board a Swiss Air flight back from
> Amsterdam.  This was a year before 9/11 however.

I don't have a Swiss Army Knife any more (lots of things got lost
between my overseas assignment and divorce 20 years later) but I have
Swiss Army Wristwatch - the brand name is Wenger but it  has the
white-cross-in-red shield on it and the watch back actually says "SWISS
ARMY KNIFE".  Keeps accurate time, too.

73 de K2ASP - Phil Kane
Elecraft K2/100   s/n 5402

>From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
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Re: [Elecraft] K2 with KPA-100

2018-12-19 Thread Don Wilhelm

Gene,

Look at the top of the K2 - does it have a black finned heatsink?  If 
so, that is the KPA100.


If you have 2 BNC connectors at the ANT1 and ANT2 positions on the upper 
rear panel of the K2, then the KAT2 is installed.  BUT the KPA100 and 
the KAT2 cannot co-exist since they occupy the same physical space.


Is there something you are not telling us - like is the KPA100 mounted 
in an external enclosure?


In any case, even if you do have the KAT2, it will be automatically 
bypassed and set to ANT1 if the KPA100 is detected.


The ATU must be located between the PA and the antenna - so you need the 
KAT100 if you are using the KPA100.  Having an ATU at the input of the 
amplifier does no good because the amplifier input should present a 50 
ohm load to the exciter.


73,
Don W3FPR

On 12/19/2018 11:11 AM, Gene O wrote:

For a portable operation:

Can anyone tell me if I have a K2 with the KPA-100 and the KAT2 low 
power auto tuner installed can it be operated at say 35 watts.  I will 
have a battery large enough to supply power. (Will not use this setup at 
100W).  Will the tuner work OK?



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Re: [Elecraft] Opportunism, bravery, insanity: putting the "eXtreme" in Elecraft's KX and AX gear

2018-12-19 Thread Dave New, N8SBE
Wayne,

Some means to GPS-lock the frequency, ala the QRPlabs QLG1:

https://www.qrp-labs.com/qlg1.html

This would make running a number of really-low-power long-transmit-time
digital modes like WSPR and QRSS more practical.

Also, built-in Free-DV support would be really nifty, for all the
K-line.  This is starting to show up in certain competitive radios.

Thanks for asking.

73,

-- Dave, N8SBE


 Original Message 
Subject: [Elecraft] Opportunism, bravery, insanity: putting the
"eXtreme" in Elecraft's KX and AX gear
From: Wayne Burdick 
Date: Tue, December 18, 2018 1:41 pm
To: Elecraft Reflector , "k...@yahoogroups.com"


Since the beginning, Elecraft products have been used under difficult
field conditions. There's the usual rain, insects, and insomnia of Field
Day, of course. Murphy at his best. But our customers have gone well
beyond this, conquering uncharted territory, experimenting with new
technology, even recruiting diminutive ungulates as pack animals.

Feedback about these experiences has helped us hone our ultraportable
transceivers; they've gotten smaller, lighter, and more capable, leading
to the present KX3 and KX2. We've also answered the call for a truly
compact, multi-band pedestrian mobile antenna with the introduction of
the AX1 and its accessories.

No doubt -- with your help -- our gear will continue to evolve. Tell us
about your operating adventures. And misadventures. What worked best?
Where could things have been improved? For example, when you were
clinging to a tree limb using an inverted vertical last winter, could
you still hear signals above the blizzard? On that ironman run, did you
need an antenna that deploys with one hand? Maybe an integrated
speech-to-FT8 converter? And when you embellish your tales beside a
campfire, should your detachable keyer paddle double as a bottle opener?

A few of your stories will find their way into our monthly newsletter.
All of them will help inform and inspire the next generation of
Elecraft's outdoor product line.

73,
Wayne
N6KR

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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Howard Stephenson
Harv,

Make sure that you are getting  13.8V at the K3 when it's in TX
Tap DISP and turn VFO B to **.* V to read that voltage.


73
Howard Stephenson K6IA
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Re: [Elecraft] Finger dimple

2018-12-19 Thread Pete Lascell
Is this what your looking for ?  
https://www.amazon.com/ThimbleDimple-1-Finger-Protector-Adhesive-Colonial/dp/B0149H9R80

Read  
https://www.eham.net/ehamforum/smf/index.php/topic,107127.0/prev_next,prev.html#new

Pete W4WWQ

- Original Message -
From: 
To: 
Sent: 12/19/2018 11:35:21 AM
Subject: [Elecraft] Finger dimple


I'm in search of a few finger dimples for a project that I am working on. A
google search failed to yield any positive results. Any assistance is
greatly appreciated.

Thanks
Gregg W6IZT

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- Original Message -
From: 
To: 
Sent: 12/19/2018 11:35:21 AM
Subject: [Elecraft] Finger dimple


I'm in search of a few finger dimples for a project that I am working on. A
google search failed to yield any positive results. Any assistance is
greatly appreciated.

Thanks
Gregg W6IZT

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[Elecraft] Finger dimple

2018-12-19 Thread gregg.w6izt1
I'm in search of a few finger dimples for a project that I am working on. A
google search failed to yield any positive results. Any assistance is
greatly appreciated.

Thanks
Gregg W6IZT

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[Elecraft] K2 with KPA-100

2018-12-19 Thread Gene O

For a portable operation:

Can anyone tell me if I have a K2 with the KPA-100 and the KAT2 low 
power auto tuner installed can it be operated at say 35 watts.  I will 
have a battery large enough to supply power. (Will not use this setup at 
100W).  Will the tuner work OK?


I've been hunting thru the archives trying to find an answer but it has 
eluded me.


Thank you.

Gene, W2BXR

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Re: [Elecraft] KX2 AUX

2018-12-19 Thread Phil Hystad via Elecraft
Don,

Thanks, I figured it was something I overlooked in my search.  I did not look 
at the options.  I do not have the KXIO2 option.  I had no need for it.

73, phil, K7PEH

> On Dec 18, 2018, at 3:46 PM, Don Wilhelm  wrote:
> 
> Phil,
> 
> Do you have the KXIO2 option in your KX2?  If so, that is where the plug for 
> that option is.
> 
> 73,
> Don W3FPR
> 
> On 12/18/2018 6:34 PM, Phil Hystad via Elecraft wrote:
>> On the KX2 end-cap, near the power adapter, is an arrow pointing around the 
>> corner I presume with the label AUX.  What is this for?  Can’t find any 
>> mention in the KX2 user guide.

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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Gadget Lust
HI Don:

Understood, but the K3 is rated for full duty cycle on those modes, and this is 
a new issue.  I can certainly run it way under that and turn on the KPA500, but 
still worry something is going south.

73
Harv
K2PI

Sent from Mail for Windows 10

From: Don Wilhelm
Sent: Wednesday, December 19, 2018 10:05 AM
To: Gadget Lust; elecraft@mailman.qth.net
Subject: Re: [Elecraft] k3 High Current Message on 10 meters

Harv,

I think the key is what you said about "long cycles modes like RTTY".  
Things heat up in those instances and the current will increase.  The 
only 'cure' is to reduce power.  I would suggest running RTTY at a power 
level of 50% of the CW/SSB rating for the transmitter.

73,
Don W3FPR

On 12/19/2018 9:53 AM, Gadget Lust wrote:
>
> Hi Don:
>
> Actually, my issue is only on 10M.  It appears that as I transmit, 
> current consumption increases, and I get occasional high current 
> messages.  This is more apparent on long duty cycle modes like RTTY, 
> and at higher power levels (80-100W).  If I watch, I can see current 
> consumption start at 16 amps, and slowly rise to 25-27 amps.
>
> I performed a TX gain Cal successfully, and that made it a bit more 
> stable (only rising to 20 or 21 amps now), but it still concerns me.  
> A friend suggested this may be blown coils in the output bandpass 
> filters.  I can wrap new coils if needed, but don’t want to do this if 
> that’s not the problem.
>
>


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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Bob McGraw K4TAX
Check fans and cooling. Make sure airflow is not obstructed. 

Bob, K4TAX


Sent from my iPhone

> On Dec 19, 2018, at 8:53 AM, Gadget Lust  wrote:
> 
> Hi Don:
> 
> Actually, my issue is only on 10M.  It appears that as I transmit, current 
> consumption increases, and I get occasional high current messages.  This is 
> more apparent on long duty cycle modes like RTTY, and at higher power levels 
> (80-100W).  If I watch, I can see current consumption start at 16 amps, and 
> slowly rise to 25-27 amps.  
> 
> I performed a TX gain Cal successfully, and that made it a bit more stable 
> (only rising to 20 or 21 amps now), but it still concerns me.  A friend 
> suggested this may be blown coils in the output bandpass filters.  I can wrap 
> new coils if needed, but don’t want to do this if that’s not the problem.
> 
> 73
> Harv
> K2PI
> 
> Sent from Mail for Windows 10
> 
> From: Don Wilhelm
> Sent: Wednesday, December 19, 2018 9:44 AM
> To: Bob Harvey - K2PI; elecraft@mailman.qth.net
> Subject: Re: [Elecraft] k3 High Current Message on 10 meters
> 
> Harv,
> 
> I did not see the initial post (fault of Nabble vs. the real Elecraft 
> reflector), but High Current messages can be caused by a low impedance 
> at the antenna connection, or also a fault in the KPA3, like one output 
> transistor that is no longer functioning properly.
> There are other causes, like incorrect bias to the PA transistors.
> Without more specific observations, it is difficult to give a specific 
> answer.
> 
> Have you tried a TX Gain Calibration on your K3/K3S?  If not, try it.
> 
> 73,
> Don W3FPR
> 
>> On 12/19/2018 9:30 AM, Bob Harvey - K2PI wrote:
>> John did you ever get an answer to this?  I have a similar situation.
>> 
>> 73
>> Harv
>> K2PI
>> 
>> 
>> 
>> --
>> Sent from: http://elecraft.365791.n2.nabble.com/
>> __
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>> 
> 
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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Don Wilhelm

Harv,

I think the key is what you said about "long cycles modes like RTTY".  
Things heat up in those instances and the current will increase.  The 
only 'cure' is to reduce power.  I would suggest running RTTY at a power 
level of 50% of the CW/SSB rating for the transmitter.


73,
Don W3FPR

On 12/19/2018 9:53 AM, Gadget Lust wrote:


Hi Don:

Actually, my issue is only on 10M.  It appears that as I transmit, 
current consumption increases, and I get occasional high current 
messages.  This is more apparent on long duty cycle modes like RTTY, 
and at higher power levels (80-100W).  If I watch, I can see current 
consumption start at 16 amps, and slowly rise to 25-27 amps.


I performed a TX gain Cal successfully, and that made it a bit more 
stable (only rising to 20 or 21 amps now), but it still concerns me.  
A friend suggested this may be blown coils in the output bandpass 
filters.  I can wrap new coils if needed, but don’t want to do this if 
that’s not the problem.





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Re: [Elecraft] Opportunism, bravery, insanity: putting the "eXtreme" in Elecraft's KX and AX gear

2018-12-19 Thread Andy McMullin
I’d vote for that idea too!

Regards 
Andy, G8TQH 

> On 19 Dec 2018, at 14:36, Bob N3MNT  wrote:
> 
> Maybe add WSJT-X capability to PX3
> 
> 
> 
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Gadget Lust
Hi Don:

Actually, my issue is only on 10M.  It appears that as I transmit, current 
consumption increases, and I get occasional high current messages.  This is 
more apparent on long duty cycle modes like RTTY, and at higher power levels 
(80-100W).  If I watch, I can see current consumption start at 16 amps, and 
slowly rise to 25-27 amps.  

I performed a TX gain Cal successfully, and that made it a bit more stable 
(only rising to 20 or 21 amps now), but it still concerns me.  A friend 
suggested this may be blown coils in the output bandpass filters.  I can wrap 
new coils if needed, but don’t want to do this if that’s not the problem.

73
Harv
K2PI

Sent from Mail for Windows 10

From: Don Wilhelm
Sent: Wednesday, December 19, 2018 9:44 AM
To: Bob Harvey - K2PI; elecraft@mailman.qth.net
Subject: Re: [Elecraft] k3 High Current Message on 10 meters

Harv,

I did not see the initial post (fault of Nabble vs. the real Elecraft 
reflector), but High Current messages can be caused by a low impedance 
at the antenna connection, or also a fault in the KPA3, like one output 
transistor that is no longer functioning properly.
There are other causes, like incorrect bias to the PA transistors.
Without more specific observations, it is difficult to give a specific 
answer.

Have you tried a TX Gain Calibration on your K3/K3S?  If not, try it.

73,
Don W3FPR

On 12/19/2018 9:30 AM, Bob Harvey - K2PI wrote:
> John did you ever get an answer to this?  I have a similar situation.
> 
> 73
> Harv
> K2PI
> 
> 
> 
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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Don Wilhelm

Harv,

I did not see the initial post (fault of Nabble vs. the real Elecraft 
reflector), but High Current messages can be caused by a low impedance 
at the antenna connection, or also a fault in the KPA3, like one output 
transistor that is no longer functioning properly.

There are other causes, like incorrect bias to the PA transistors.
Without more specific observations, it is difficult to give a specific 
answer.


Have you tried a TX Gain Calibration on your K3/K3S?  If not, try it.

73,
Don W3FPR

On 12/19/2018 9:30 AM, Bob Harvey - K2PI wrote:

John did you ever get an answer to this?  I have a similar situation.

73
Harv
K2PI



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Re: [Elecraft] Opportunism, bravery, insanity: putting the "eXtreme" in Elecraft's KX and AX gear

2018-12-19 Thread Bob N3MNT
Maybe add WSJT-X capability to PX3



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Re: [Elecraft] k3 High Current Message on 10 meters

2018-12-19 Thread Bob Harvey - K2PI
John did you ever get an answer to this?  I have a similar situation.

73
Harv
K2PI



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