[Elecraft] KAT3A Question

[Jim Larson]

I have a K3S/10 with a few extra filters and the DVR board installed.  I’d like 
to purchase the KAT3A automatic antenna tuner, but want to make sure that it 
can be installed in this 10w version of the K3S, or does it require the 100w 
option?

Do you feel it is a nice addition to the rig?  

Are you pleased with the performance compared to other external ATUs on the 
market?

Thanks in advance.

Jim - KK7A

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Re: [Elecraft] KXPA100 --> KX3/PX3 Question

[Ryan Noguchi via Elecraft]

>However, it appears that this cable has one line that plugs into the KX3's 
>ACC1 jack. Right now, that jack has a cable running over to the PX3. How is 
>this conflict resolved? 

>Jim Bennett / W6JHB


The 3.5mm plug from that cable plugs into the "ACC1 PC" port on the PX3. The 
PX3 manual has a picture that shows how you need to connect the KX3, PX3, and 
KXPA100. Not sure why this picture isn't also in the KXPA100 manual. 

73, Ryan AI6DO


   
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Re: [Elecraft] KXPA100 --> KX3/PX3 Question

[Don Wilhelm]

Jim,

Refer to page 9 of the PX3 manual.  The system integrates nicely with 
the PX3CBL supplied with the PX3.


On 12/20/2016 12:20 AM, James Bennett wrote:

I've got a KX3 and PX3 at the moment, and am considering the purchase of the KXPA100 and 
KXAT100. Looking at the user manual of the amp, I see that there is an optional cable 
(KX3 to KXPA100 Adapter Cable) that should be used to have the units all operate as a 
cohesive unit. However, it appears that this cable has one line that plugs into the KX3's 
ACC1 jack. Right now, that jack has a cable running over to the PX3. How is this conflict 
resolved? Didn't see any sort of "Y" connector / cable on the order page, nor 
mention of using the amp/tuner when a PX3 is involved. What am I missing?


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[Elecraft] KXPA100 --> KX3/PX3 Question

[James Bennett]

I've got a KX3 and PX3 at the moment, and am considering the purchase of the 
KXPA100 and KXAT100. Looking at the user manual of the amp, I see that there is 
an optional cable (KX3 to KXPA100 Adapter Cable) that should be used to have 
the units all operate as a cohesive unit. However, it appears that this cable 
has one line that plugs into the KX3's ACC1 jack. Right now, that jack has a 
cable running over to the PX3. How is this conflict resolved? Didn't see any 
sort of "Y" connector / cable on the order page, nor mention of using the 
amp/tuner when a PX3 is involved. What am I missing?

Jim Bennett / W6JHB
Folsom, CA
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Re: [Elecraft] KX2 Memory Operation Question

[Nr4c]

So lock the VFO. 

Sent from my iPhone
...nr4c. bill


> On Dec 19, 2016, at 2:24 PM, rfphelps  wrote:
> 
> I've had 16 years of Elecraft experience with the K2 and a bit less with the
> K1 and KX1 - then I added a KX2 last September!  Operating it has been a
> real blast!
> 
> I suspect that my question is generic to the K3, KX3 and KX2.
> 
> 
> 
> Operation on 60 meters pretty much requires that you program the five CW and
> five SSB frequencies in memory channels to avoid a harmless "misstep" which
> might offend our FCC friends.  I've stored the frequencies in Channels 61
> through 70 and labeled them appropriately.  I then recall the memory channel
> that I want to operate on.  So far, so good.
> 
> 
> 
> The instant that I go into transmit, the rig transfers the frequency, mode,
> et al into the VFO mode and subsequent operation is conducted on the freely
> tunable VFO with no reference to the memory channel.  I find this to be a
> bit unnerving since it is so easy to nudge the rig off the specified
> frequency.  On anything other than 60 meters, I wouldn't care.
> 
> 
> 
> Am I missing something?  Would appreciate any comments!
> 
> Regards,
> 
> Dick,
> 
> K1SW
> 
> 
> 
> 
> 
> 
> 
> 
> 
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Re: [Elecraft] [KPA500] incredible hum from PA

[Ron D'Eau Claire]

Joe might be right but contact Tech Support first. The transformer is held in 
place with a single large bolt through the center (it is a torodial 
transformer). If that bolt is not tightened properly the magnetic field will 
produce a huge vibration. Even if you did not build the amp from the kit, it's 
a pretty simple job to tighten that bolt. Tech Support can lead you through the 
process. It is also described in the kit assembly manual available on the 
Elecraft web site here;
http://www.elecraft.com/manual/E740149%20KPA500%20Kit%20Assembly%20Manual%20Rev%20F6.pdf

See pages 36 and 37. 

73, Ron AC7AC

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W1GO (Joe)
Sent: Monday, December 19, 2016 6:19 PM
To: kevino z
Cc: Elecraft Reflector
Subject: Re: [Elecraft] [KPA500] incredible hum from PA

Kevin,

Yes.  had the problem.  Crazy loud hum / buzz.  Bad transformer I was told.  
All quiet on the eastern front now.  If it is a bad transformer it can be fixed 
but you’ll have to eat the shipping charge.

Joe
W1GO

> On Dec 19, 2016, at 9:10 PM, kevino z  wrote:
> 
> Just got my KPA500 and KAT500. I hooked the PA up to 240v (well, my Mains are 
> 248v), so I made sure the assembled PA has the yellow transformer tap, from 
> the factory.
> When I engage the amp, there is a crazy buzz. I use a KPA500 at work, but it 
> is on 120v and I never hear this buzz. Before I swap fuses, and switch over 
> to 120v to test, does anyone else have this issue?
> The KPA500 is hooked up to a KX3/KXPA100 combo, just in case someone would 
> ask.
> Thanks
> -Kevin (KK4YEL)
> 
> 
> No trees were killed in the sending of this message. However, a large number 
> of electrons were terribly inconvenienced !
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Re: [Elecraft] [KPA500] incredible hum from PA

[W1GO (Joe)]

Kevin,

Yes.  had the problem.  Crazy loud hum / buzz.  Bad transformer I was told.  
All quiet on the eastern front now.  If it is a bad transformer it can be fixed 
but you’ll have to eat the shipping charge.

Joe
W1GO

> On Dec 19, 2016, at 9:10 PM, kevino z  wrote:
> 
> Just got my KPA500 and KAT500. I hooked the PA up to 240v (well, my Mains are 
> 248v), so I made sure the assembled PA has the yellow transformer tap, from 
> the factory.
> When I engage the amp, there is a crazy buzz. I use a KPA500 at work, but it 
> is on 120v and I never hear this buzz. Before I swap fuses, and switch over 
> to 120v to test, does anyone else have this issue?
> The KPA500 is hooked up to a KX3/KXPA100 combo, just in case someone would 
> ask.
> Thanks
> -Kevin (KK4YEL)
> 
> 
> No trees were killed in the sending of this message. However, a large number 
> of electrons were terribly inconvenienced !
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[Elecraft] [KPA500] incredible hum from PA

[kevino z]

Just got my KPA500 and KAT500. I hooked the PA up to 240v (well, my Mains are 
248v), so I made sure the assembled PA has the yellow transformer tap, from the 
factory.
When I engage the amp, there is a crazy buzz. I use a KPA500 at work, but it is 
on 120v and I never hear this buzz. Before I swap fuses, and switch over to 
120v to test, does anyone else have this issue?
The KPA500 is hooked up to a KX3/KXPA100 combo, just in case someone would ask.
Thanks
-Kevin (KK4YEL)


No trees were killed in the sending of this message. However, a large number of 
electrons were terribly inconvenienced !
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[Elecraft] KX3,PX3,KXPA100 for sale

[David DeGeorge]

For sale Elecraft KX3, PX3, and KXPA100 all factory assembled.
$2500
Sold as a unit including the extras mentioned below. 
Details.
KX3:
 KX3-F 160 - 6M Transceiver
 KXAT3-F Internal 20 watt tuner
 KXBC3-F Internal NiMH Charger with Real Time Clock
 KXFL3-F Dual - Passband Roofing filter.
 MH3 Hand Microphone
PX3-F - Panadapter
KXPA100 100 watt amplifier for KX3 factory assembled
KXAT100 internal ATU for KXPA1 factory assembled

Includes  all necessary cabling and original manuals and most
of the original packaging. All units purchased Sept-Dec 2014.

Also includes the following extras:
  SIDEKX KX3 and PX3 side panels, Keyer port cover,and Plexiglass Covers.
  Tiger Tronics SignaLink  USB with KX3 cables and KX3 jumper module.
  Small KX3 book. 
Lightly used.

PayPal only.


David WQ2Q
d...@degeorge.org


David DeGeorge
d...@degeorge.org
Amateur Radio: WQ2Q


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Re: [Elecraft] KX2 Memory Operation Question

[Bill Frantz]

I have not done any 60M operation on my KX3, but on my K3, I 
have the per-band memories on 60M set up for the channels, 
getting all 5 them by assigning the extra to VFO-B and swapping 
VFOs if necessary. I have had the problem of tuning off the DX 
frequency while groping for the knobs on the K3, so I got in the 
habit of using the (hold)-LOCK function to cover my tail. My KX3 
does lock by holding the KHZ button for about 3 seconds.


73 Bill AE6JV

On 12/19/16 at 11:24 AM, rfphe...@snet.net (rfphelps) wrote:


I've had 16 years of Elecraft experience with the K2 and a bit less with the
K1 and KX1 - then I added a KX2 last September!  Operating it has been a
real blast!

I suspect that my question is generic to the K3, KX3 and KX2.



Operation on 60 meters pretty much requires that you program the five CW and
five SSB frequencies in memory channels to avoid a harmless "misstep" which
might offend our FCC friends.  I've stored the frequencies in Channels 61
through 70 and labeled them appropriately.  I then recall the memory channel
that I want to operate on.  So far, so good.



The instant that I go into transmit, the rig transfers the frequency, mode,
et al into the VFO mode and subsequent operation is conducted on the freely
tunable VFO with no reference to the memory channel.  I find this to be a
bit unnerving since it is so easy to nudge the rig off the specified
frequency.  On anything other than 60 meters, I wouldn't care.



Am I missing something?  Would appreciate any comments!


---
Bill Frantz| Since the IBM Selectric, keyboards have gotten
408-356-8506   | steadily worse. Now we have touchscreen keyboards.
www.pwpconsult.com | Can we make something even worse?

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Re: [Elecraft] KX2 Memory Operation Question

[Don Wilhelm]

Dick,

Look up "Channel Hopping" in the manual, that should help you with the KX2.

If you plan to operate CW on 60 meters, you will have to add another set 
of memories that takes you to the channel center rather than to 1.5k 
below center as is used for USB mode.


It is not available for the K1, K2 or KX1, but works for all the others.

73,
Don W3FPR

On 12/19/2016 2:24 PM, rfphelps wrote:

I've had 16 years of Elecraft experience with the K2 and a bit less with the
K1 and KX1 - then I added a KX2 last September!  Operating it has been a
real blast!

I suspect that my question is generic to the K3, KX3 and KX2.



Operation on 60 meters pretty much requires that you program the five CW and
five SSB frequencies in memory channels to avoid a harmless "misstep" which
might offend our FCC friends.  I've stored the frequencies in Channels 61
through 70 and labeled them appropriately.  I then recall the memory channel
that I want to operate on.  So far, so good.



The instant that I go into transmit, the rig transfers the frequency, mode,
et al into the VFO mode and subsequent operation is conducted on the freely
tunable VFO with no reference to the memory channel.  I find this to be a
bit unnerving since it is so easy to nudge the rig off the specified
frequency.  On anything other than 60 meters, I wouldn't care.



Am I missing something?  Would appreciate any comments!

Regards,

Dick,

K1SW









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[Elecraft] KX2 Memory Operation Question

[rfphelps]

I've had 16 years of Elecraft experience with the K2 and a bit less with the
K1 and KX1 - then I added a KX2 last September!  Operating it has been a
real blast!

I suspect that my question is generic to the K3, KX3 and KX2.

 

Operation on 60 meters pretty much requires that you program the five CW and
five SSB frequencies in memory channels to avoid a harmless "misstep" which
might offend our FCC friends.  I've stored the frequencies in Channels 61
through 70 and labeled them appropriately.  I then recall the memory channel
that I want to operate on.  So far, so good.

 

The instant that I go into transmit, the rig transfers the frequency, mode,
et al into the VFO mode and subsequent operation is conducted on the freely
tunable VFO with no reference to the memory channel.  I find this to be a
bit unnerving since it is so easy to nudge the rig off the specified
frequency.  On anything other than 60 meters, I wouldn't care.

 

Am I missing something?  Would appreciate any comments!

Regards,

Dick,

K1SW

 

 

 

 

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Re: [Elecraft] Checking VFO accuracy using WWV

[David Anderson via Elecraft]

It is human nature to be disappointed if we don't get the nominal figure, but 
only the lower limit  even if still within spec.  We wouldn't complain if we 
got a few Watts more than the 100 Watts, and of course 100 Watts sounds like a 
lot more than 89 Watts just as $100 does to $89. 

73 from David GM4JJJ

> On 19 Dec 2016, at 08:12, Walter Underwood  wrote:
> 
> For the KXPA100, the tolerance is specified. See page 30 of the manual.
> 
> "Power Output: Max.100 watts at 13.8 V, 1.8 to 29.7 MHz and 80 watts 50-54 
> MHz PEP CW/SSB/DATA, ± 1 dB“
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
> 
>> On Dec 18, 2016, at 9:22 PM, Jim Brown  wrote:
>> 
>> On Sun,12/18/2016 2:04 PM, Wes Stewart wrote:
>>> If the manufacturer specifies that the transmitter puts out 100W, and 
>>> indeed uses that as a part of the part number on the order sheet, then it's 
>>> not unreasonable for the customer to expect 100 W out. 
>> 
>> The published spec is 100W typical, with no tolerance specified.
>> 
>> 73, Jim K9YC
>> 
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Re: [Elecraft] Checking VFO accuracy using WWV

[Walter Underwood]

For the KXPA100, the tolerance is specified. See page 30 of the manual.

"Power Output: Max.100 watts at 13.8 V, 1.8 to 29.7 MHz and 80 watts 50-54 MHz 
PEP CW/SSB/DATA, ± 1 dB“

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Dec 18, 2016, at 9:22 PM, Jim Brown  wrote:
> 
> On Sun,12/18/2016 2:04 PM, Wes Stewart wrote:
>> If the manufacturer specifies that the transmitter puts out 100W, and indeed 
>> uses that as a part of the part number on the order sheet, then it's not 
>> unreasonable for the customer to expect 100 W out. 
> 
> The published spec is 100W typical, with no tolerance specified.
> 
> 73, Jim K9YC
> 
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