Re: [Elecraft] KX3 power supply

[John Kramer]

Don

Thanks for the reply. I have thought long about it, and decided I would rather 
not risk damaging
my KX3 for the sake of a cheap PSU. I live too far away from the factory to 
risk damaging
the KX3 - it cost me $ 450.00 just to ship my new KX3 to me in June.

I will leave the cheap eBay PSU for some other project, or the trash. I have 
plenty of other 
regulated, stable PSU’s that supply the correct voltage, so I will continue 
using them.

I would never forgive myself if I damaged my KX3 by using a cheap eBay PSU.

Thanks for all the replies

73
John, ZS5J







On 19 Jan 2016, at 1:18 AM, Don Wilhelm  wrote:

John,

I would suggest that you put a diode in series with that supply - rated
at 5 amps.  That will reduce the voltage by the amount of the diode drop.
Running the KX3 (or any other device) above the specified maximum
voltage is done at your own peril - it may work, but it taxes the
regulators and other devices.

73,
Don W3FPR

On 1/18/2016 3:43 PM, John Kramer wrote:
> Someone on this reflector suggested a power supply off eBay, that could be 
> used
> with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I 
> bought one,
> this is the one…
> 
> http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22
>  
> 
> 
> It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 
> amps, and only sells
> for $ 7.79 including free shipping from Hong Kong.
> Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked 
> up to a volt meter
> and see it is 15.4 volts. I know it is better for TX IMD to have higher 
> voltage supplied to the
> KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be 
> too much
> for the KX3. I see in the KX3 manual specs, that recommended supply voltage 
> is 8 - 15 volts.
> I would hate to hurt my KX3 with over voltage……anyone know if there would be 
> any short
> or long term problems with running 15.4 volts to the KX3 ? It is just 
> slightly above the
> maximum recommended supply voltage
> 
> 73
> John, ZS5J.
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Re: [Elecraft] K3 KIO3

[Hisashi T Fujinaka]

I have one spare as well.

But I have to say I'm having great fun with my KIO3B. I even bought a
$349 HP laptop and installed Ubuntu to run WSJT-X and fldigi. It's
pretty fun.

On Mon, 18 Jan 2016, James F. Boehner MD via Elecraft wrote:


Can anyone let us know what the KIO3's are selling for?

'73 de JIM N2ZZ


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lewis
Phelps
Sent: Monday, January 18, 2016 4:07 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] F/S K3 KIO3

Folks, my need for a KIO3 has been met.  Thanks.

Lew N6LEW


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--
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BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee
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Re: [Elecraft] K3 KIO3

[Don Wilhelm]

Dr. Jim,

I really don't know the answer to your question, but I suspect a fair 
value would be between 1/2 and 2/3 of the original price for the KIO3 
option.
I do not recall what that price was, but perhaps someone with an older 
price sheet will chime in.


BTW, that estimate is my general 'criteria' for used equipment.  It is 
no longer under warranty, and the buyer accepts that fact (other than 
DOA agreements between the buyer and the seller).


73,
Don W3FPR

On 1/18/2016 7:27 PM, James F. Boehner MD via Elecraft wrote:

Can anyone let us know what the KIO3's are selling for?

'73 de JIM N2ZZ


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lewis
Phelps
Sent: Monday, January 18, 2016 4:07 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] F/S K3 KIO3

Folks, my need for a KIO3 has been met.  Thanks.

Lew N6LEW


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Re: [Elecraft] KX3 power supply

[Don Wilhelm]

John,

I would suggest that you put a diode in series with that supply - rated 
at 5 amps.  That will reduce the voltage by the amount of the diode drop.
Running the KX3 (or any other device) above the specified maximum 
voltage is done at your own peril - it may work, but it taxes the 
regulators and other devices.


73,
Don W3FPR

On 1/18/2016 3:43 PM, John Kramer wrote:

Someone on this reflector suggested a power supply off eBay, that could be used
with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I 
bought one,
this is the one…

http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22
 


It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 
amps, and only sells
for $ 7.79 including free shipping from Hong Kong.
Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked up 
to a volt meter
and see it is 15.4 volts. I know it is better for TX IMD to have higher voltage 
supplied to the
KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be 
too much
for the KX3. I see in the KX3 manual specs, that recommended supply voltage is 
8 - 15 volts.
I would hate to hurt my KX3 with over voltage……anyone know if there would be 
any short
or long term problems with running 15.4 volts to the KX3 ? It is just slightly 
above the
maximum recommended supply voltage

73
John, ZS5J.
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Re: [Elecraft] KX3 power supply

[Matt Murphy]

I bought one of the pro audio engineering KX3 power supplies and it works
perfectly.

73,
Matt NQ6N

On Mon, Jan 18, 2016 at 1:31 PM, Howard Hoyt  wrote:

> John,
>
> I do have a horse in this race (the Kx33), but I will tell you that in
> testing many supplies I have seen that many of them have poor regulation.
> Some show as much as 25% peak over-voltage which you would need a scope to
> see when a load is removed, which is the situation when the KX3 returns to
> receive after a full-power transmit cycle.  Running 15.4V average could
> potentially mean 19.25V peak with such a supply.
>
> This reason plus many others is why we designed the Kx33.  We like our
> KX3s!
>
> Cheers & 73,
>
> Howie - WA4PSC
> www.proaudioeng.com
>
>
> >>I would hate to hurt my KX3 with over voltage??
> >>anyone know if there would be any short or long
> >>term problems with running 15.4 volts to the KX3?
> >>It is just slightly above the maximum recommended
> >> supply voltage
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Re: [Elecraft] KX3 power supply

[Chip Stratton]

The PAE power supply works fine, but it still puts out enough hash that I
can't use my loop antenna near it. It is better than others? Probably, but
still not usable for me when near  the receiving antenna.

Chip
AE5KA

On Mon, Jan 18, 2016 at 5:38 PM, Matt Murphy  wrote:

> I bought one of the pro audio engineering KX3 power supplies and it works
> perfectly.
>
> 73,
> Matt NQ6N
>
> On Mon, Jan 18, 2016 at 1:31 PM, Howard Hoyt  wrote:
>
> > John,
> >
> > I do have a horse in this race (the Kx33), but I will tell you that in
> > testing many supplies I have seen that many of them have poor regulation.
> > Some show as much as 25% peak over-voltage which you would need a scope
> to
> > see when a load is removed, which is the situation when the KX3 returns
> to
> > receive after a full-power transmit cycle.  Running 15.4V average could
> > potentially mean 19.25V peak with such a supply.
> >
> > This reason plus many others is why we designed the Kx33.  We like our
> > KX3s!
> >
> > Cheers & 73,
> >
> > Howie - WA4PSC
> > www.proaudioeng.com
> >
> >
> > >>I would hate to hurt my KX3 with over voltage??
> > >>anyone know if there would be any short or long
> > >>term problems with running 15.4 volts to the KX3?
> > >>It is just slightly above the maximum recommended
> > >> supply voltage
> > __
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[Elecraft] K3 KIO3

[James F. Boehner MD via Elecraft]

Can anyone let us know what the KIO3's are selling for?

'73 de JIM N2ZZ


-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lewis
Phelps
Sent: Monday, January 18, 2016 4:07 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] F/S K3 KIO3

Folks, my need for a KIO3 has been met.  Thanks.

Lew N6LEW


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Re: [Elecraft] K3 - KIO3B setup

[Bill Conkling]

Well, first, I don’ recognize the CBLP3T cable.  Maybe you meant CBLP3Y? If so, 
I think yu would still need a DE-9 “Y” cable to connect at the P3 at which ever 
port you used before (TXCVR or PC).

Be sure to set CONFIG:RS-232 to USB and not 38400 as before.  And now your 
audio input/output is the new USB CODEC.  Have fun and let us know how it works.

…bc  nr4c




> On Jan 18, 2016, at 4:24 PM, N2TK, Tony  wrote:
> 
> I installed the KIO3B kit. I have it set up as the original KIO3 - K3- RS232
> to P3 to PC/SteppIR. Accessory plug with FSK interface and audio in and out
> cables to audio board. I use LP-Bridge. Everything is working fine as it was
> before the upgrade.
> 
> Now I want to take advantage of the features of the KIO3B kit.
> 
> 
> 
> I have the CBLP3T cable for the K3 to the P3. 
> 
> I will replace the RS232 with the USB to the PC.
> 
> I will remove the audio in and out cables. 
> 
> 
> 
> Is there anything special I need to do now that I will be using a USB port
> instead of the RS232? 
> 
> What about with LP-Bridge? Anything I need to do with it? 
> 
> Where is the best place to hook up the SteppiR now that I don't have an
> RS232 connecting to the PC?
> 
> 
> 
> Tnx for any feedback.
> 
> 73,
> 
> N2TK, Tony
> 
> 
> 
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[Elecraft] OT: FS Mirage A1015G 6m 150w linear

[Edward R Cole]

In case anyone is looking for 150w on 6m (will drive with KX3 or K3/10):

I'm selling my Mirage A1015G 6m Linear for $250 FREE shipping in the 
US.  This is the model with internal preamp.
Works fine - selling to raise funds toward KXPA-100 which will 
replace it at my station.  I also have a Harris 1kW 6m amp (converted 
from ch.2 TV) so the Mirage is no longer needed.


Both KX3 and K3/10 run 8w output on 6m so I will throw in FREE a used 
(look new) Yaesu FL-6020 10w linear (drives with 2w) which will 
enable the KX3 to run the Mirage at full output. Most will do 12w out 
or more.  They pass Rx so one coax connection used.


I have three more of the Yaesu amps which are also available for $25 
FREE shipping in US.  PayPal preferred.


73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
dubus...@gmail.com

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[Elecraft] USB Soundcard

[a45wg]

Please could anyone shed some light as to what type of USB Sound card I can use 
as my entire range of Laptops - are only fitted with Mic-In and not a Stereo 
Line-In.

I have managed to procure a stereo 2.5 to 3.5mm male-male audio lead.

I am hoping to be able to see the I/Q output from my recently built KX3 - using 
some software tools.

Looking forward to hearing what works/does not work well.

Many thanks

Tim, A45wg. Muscat
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[Elecraft] K3 KIO3

[James Wilson]

   - Back in 2010, I had a lightning strike that damaged
   - my KIO3 board. For what it's worth, here are the
   - (quite reasonable) charges Elecraft made tor:
   - KIO3 Digital Board  $30.44
   - KIO3A Main PCB Assm$106.16

Jim - W4RKS

--

>Dr. Jim,

>I really don't know the answer to your question, but I suspect a >fair value 
>would be between 1/2 and 2/3 of the original price >for the KIO3 option.
>I do not recall what that price was, but perhaps someone with an >older price 
>sheet will chime in.

>73,
>Don W3FPR

>On 1/18/2016 7:27 PM, James F. Boehner MD via Elecraft wrote:
>* Can anyone let us know what the KIO3's are selling for?
*>>* '73 de JIM N2ZZ*
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Re: [Elecraft] USB Soundcard

[Walter Underwood]

There are some pretty convincing measurements that show that the SignaLink USB 
is not as good as it should be.

For this application, the SignaLink is useless, because for I/Q output from the 
KX3, he’ll need stereo in. The SignaLink is mono.

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

> On Jan 18, 2016, at 8:02 PM, Bob McGraw K4TAX  wrote:
> 
> The SignaLink USB is one I find to be a good choice.  It uses the USB port on 
> the computer.There's others, more or less expensive.  Like candy, it 
> seems everyone has their preference in flavor.
> 
> 73
> Bob, K4TAX
> 
> 
> On 1/18/2016 9:20 PM, a45wg wrote:
>> Please could anyone shed some light as to what type of USB Sound card I can 
>> use as my entire range of Laptops - are only fitted with Mic-In and not a 
>> Stereo Line-In.
>> 
>> I have managed to procure a stereo 2.5 to 3.5mm male-male audio lead.
>> 
>> I am hoping to be able to see the I/Q output from my recently built KX3 - 
>> using some software tools.
>> 
>> Looking forward to hearing what works/does not work well.
>> 
>> Many thanks
>> 
>> Tim, A45wg. Muscat
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> 
> 
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Re: [Elecraft] USB Soundcard

[Bob McGraw K4TAX]

The SignaLink USB is one I find to be a good choice.  It uses the USB 
port on the computer.There's others, more or less expensive.  Like 
candy, it seems everyone has their preference in flavor.


73
Bob, K4TAX


On 1/18/2016 9:20 PM, a45wg wrote:

Please could anyone shed some light as to what type of USB Sound card I can use 
as my entire range of Laptops - are only fitted with Mic-In and not a Stereo 
Line-In.

I have managed to procure a stereo 2.5 to 3.5mm male-male audio lead.

I am hoping to be able to see the I/Q output from my recently built KX3 - using 
some software tools.

Looking forward to hearing what works/does not work well.

Many thanks

Tim, A45wg. Muscat
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Re: [Elecraft] USB Soundcard

[Jim Brown]

On Mon,1/18/2016 8:35 PM, Barry LaZar wrote:
A card useful for spectrum is massive overkill for running the digital 
modes. 


Not if it's half the cost of the lower bandwidth units!


On Mon,1/18/2016 8:06 PM, Walter Underwood wrote:

There are some pretty convincing measurements that show that the SignaLink USB 
is not as good as it should be.


Yes.


For this application, the SignaLink is useless, because for I/Q output from the 
KX3, he’ll need stereo in. The SignaLink is mono.


Yes.

The SignaLink is a pretty old design. In the digital world, 10 years is 
forever!  And it's VERY overpriced for what it is. It's popular ONLY 
because of lots of advertising hype from the vendors reselling it.


73, Jim K9YC
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Re: [Elecraft] USB Soundcard

[Phil Wheeler]

Works well for me, too, Bob.

73, Phil W7OX

On 1/18/16 20:02 , Bob McGraw K4TAX wrote:
The SignaLink USB is one I find to be a good choice.  It uses the USB 
port on the computer.There's others, more or less expensive. Like 
candy, it seems everyone has their preference in flavor.


73
Bob, K4TAX


On 1/18/2016 9:20 PM, a45wg wrote:
Please could anyone shed some light as to what type of USB Sound card 
I can use as my entire range of Laptops - are only fitted with Mic-In 
and not a Stereo Line-In.


I have managed to procure a stereo 2.5 to 3.5mm male-male audio lead.

I am hoping to be able to see the I/Q output from my recently built 
KX3 - using some software tools.


Looking forward to hearing what works/does not work well.

Many thanks

Tim, A45wg. Muscat
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Re: [Elecraft] USB Soundcard

[Ryan Noguchi via Elecraft]

Tim,
I have no complaints about the ASUS Xonar U5, which I use with Fldigi, MMTTY, 
etc. I don't have enough personal experience with alternatives to be able to 
compare its performance, but you'll find technical comparisons of the U5 with 
other sound cards from an amateur radio perspective in several places by 
searching the web, and the U5 tends to be highly recommended, as is the 
slightly more expensive U7. Reading http://www.telepostinc.com/soundcards.html 
and http://audiosystemsgroup.com/USB_Interfaces.pdf led me to buy the U5. 
73, Ryan AI6DO

  From: a45wg 
 To: "elecraft@mailman.qth.net"  
 Sent: Monday, January 18, 2016 7:20 PM
 Subject: [Elecraft] USB Soundcard
   
Please could anyone shed some light as to what type of USB Sound card I can use 
as my entire range of Laptops - are only fitted with Mic-In and not a Stereo 
Line-In.

I have managed to procure a stereo 2.5 to 3.5mm male-male audio lead.

I am hoping to be able to see the I/Q output from my recently built KX3 - using 
some software tools.

Looking forward to hearing what works/does not work well.

Many thanks

Tim, A45wg. Muscat
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Re: [Elecraft] USB Soundcard

[Barry LaZar]

Muscat,
I use the Steinberg UR22, but I have used other cards. A number of 
my local friends are using Asus cards. They work well. The site that has 
the NaP3 /LPBridge software has a list of recommendations. They seem 
right.  Just make sure you get a 24 bit card that samples at 96KHz or 
more; I use 192KHZ. This will allow you to do spectrum display quite 
well and other software like CW Skimmer off the very same I data 
stream.


A card useful for spectrum is massive overkill for running the 
digital modes. A simple 16 bit or better card running 44 KHz will work, 
like the card in your computer. I use the SignaLink USB. I can do this 
simultaneously while reading out the spectrum. That means you can have a 
fair degree of flexibility.


If you really want to go crazy, get a copy of Win4K3. Your KX3 than 
becomes the engine for a fully integrated operation. The down side is 
you will end up needing either 2-3 monitors or one very big one.


73,
Barry
K3NDM

-- Original Message --
From: "a45wg" 
To: "elecraft@mailman.qth.net" 
Sent: 1/18/2016 10:20:29 PM
Subject: [Elecraft] USB Soundcard

Please could anyone shed some light as to what type of USB Sound card I 
can use as my entire range of Laptops - are only fitted with Mic-In and 
not a Stereo Line-In.


I have managed to procure a stereo 2.5 to 3.5mm male-male audio lead.

I am hoping to be able to see the I/Q output from my recently built KX3 
- using some software tools.


Looking forward to hearing what works/does not work well.

Many thanks

Tim, A45wg. Muscat
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Re: [Elecraft] KX3 power supply

[Ken Talbott]

That plug is NOT correct for the KX3.  It SB 2.1 X 5.5 (rather, that's what I 
use.)
Ken - ke4rg

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of John 
Kramer
Sent: Monday, January 18, 2016 3:44 PM
To: Elecraft list 
Subject: [Elecraft] KX3 power supply

Someone on this reflector suggested a power supply off eBay, that could be used 
with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I 
bought one, this is the one 

http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22
 


It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 
amps, and only sells for $ 7.79 including free shipping from Hong Kong.
Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked up 
to a volt meter and see it is 15.4 volts. I know it is better for TX IMD to 
have higher voltage supplied to the
KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be 
too much for the KX3. I see in the KX3 manual specs, that recommended supply 
voltage is 8 - 15 volts.
I would hate to hurt my KX3 with over voltage  anyone know if there would be 
any short or long term problems with running 15.4 volts to the KX3 ? It is just 
slightly above the maximum recommended supply voltage

73
John, ZS5J.
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[Elecraft] KX3 power supply

[John Kramer]

Someone on this reflector suggested a power supply off eBay, that could be used 
with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I 
bought one, 
this is the one…

http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22
 


It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 
amps, and only sells 
for $ 7.79 including free shipping from Hong Kong.
Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked up 
to a volt meter
and see it is 15.4 volts. I know it is better for TX IMD to have higher voltage 
supplied to the 
KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be 
too much
for the KX3. I see in the KX3 manual specs, that recommended supply voltage is 
8 - 15 volts.
I would hate to hurt my KX3 with over voltage……anyone know if there would be 
any short
or long term problems with running 15.4 volts to the KX3 ? It is just slightly 
above the 
maximum recommended supply voltage

73
John, ZS5J.
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Re: [Elecraft] [K3] CW Message Memories

[David Christ]

You nailed it.  That took care of it.  I forgot that I needed to press A>B 
twice.

Thank you


David K0LUM

> On Jan 18, 2016, at 2:38 PM, Bill Conkling  wrote:
> 
> You are correct that the KDVR3 is not needed for CW messages.  However, you 
> must be in CW mode (or one of the two DATA sub-modes PSK-D or FSK-D) for 
> these messages to work.  And, if you are set to SPLIT operation, VFO B must 
> also be in CW mode.
> 
> They also work in TEST mode.  However, be careful, my K3S MODE button is more 
> fussy than the button on my K3 and sometimes when trying to get the TEST 
> mode, I press the  button not quite right and it goes to SSB/LSB so that when 
> I press it again, now i’m in TEST mode, but in SSB instead of CW.
> 
> …bill  nr4c
> 
>> On Jan 18, 2016, at 3:16 PM, David Christ  wrote:
>> 
>> I have myself confused.  Is the KDVR3 required to use the CW message 
>> memories? At first I thought it wasn’t but I used the K3 Utility to load 
>> some messages into the CW memories.  Then I placed the K3 into test mode and 
>> CW mode.  When I press any of the M1-M4 keys I get the message  “NO DVR” in 
>> the VFO B area.  So is the KDVR3 required or am I doing something wrong.  
>> Neither the K3 manual or the Cady book have helped me understand this.  
>> Neither says the KDVR3 is needed and the KDVR3 manual only talks about voice 
>> recording which implies it is not involved with CW message memories.
>> 
>> David K0LUM
>> 
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> 

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[Elecraft] KX3 power supply

[Howard Hoyt]

John,

I do have a horse in this race (the Kx33), but I will tell you that in 
testing many supplies I have seen that many of them have poor 
regulation.  Some show as much as 25% peak over-voltage which you would 
need a scope to see when a load is removed, which is the situation when 
the KX3 returns to receive after a full-power transmit cycle.  Running 
15.4V average could potentially mean 19.25V peak with such a supply.


This reason plus many others is why we designed the Kx33.  We like our KX3s!

Cheers & 73,

Howie - WA4PSC
www.proaudioeng.com


>>I would hate to hurt my KX3 with over voltage??
>>anyone know if there would be any short or long
>>term problems with running 15.4 volts to the KX3?
>>It is just slightly above the maximum recommended
>> supply voltage
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[Elecraft] KIO3 wanted

[Lewis Phelps]

If anyone has upgraded to the new KIO3B and has a surplus “original” KIO3 
available, I’d be interested in buying it.  Please reply off list and let me 
know your price.

Lew

Lew Phelps N6LEW
Pasadena, CA DM04wd
Elecraft K3-10 / KXV144 / XV432
Yaesu FT-7800 
l...@n6lew.us
www.n6lew.us

Generalized Law of Entropy: Sooner or later, everything that has been put 
together will fall apart.





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Re: [Elecraft] KX3 power supply

[Bob N3MNT]

The KX3 will shut down if the voltage is too high.



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/KX3-power-supply-tp7612732p7612736.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] KX3 power supply

[John Kramer]

Thanks for the info Bob, and it’s reassuring to see that the KX3 has protection 
for 
over voltage.
One caveat with this PSU - I just tried to insert the DC plug from this  PSU to 
the KX3, 
and I see it is too large for the KX3. Not a big deal, I will just cut it off 
and fit the correct
size DC plug

73

John, ZS5J




On 18 Jan 2016, at 11:09 PM, Bob N3MNT  wrote:

The KX3 will shut down if the voltage is too high.





Someone on this reflector suggested a power supply off eBay, that could be used 
with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I 
bought one, 
this is the one…

http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22
 


It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 
amps, and only sells 
for $ 7.79 including free shipping from Hong Kong.
Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked up 
to a volt meter
and see it is 15.4 volts. I know it is better for TX IMD to have higher voltage 
supplied to the 
KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be 
too much
for the KX3. I see in the KX3 manual specs, that recommended supply voltage is 
8 - 15 volts.
I would hate to hurt my KX3 with over voltage……anyone know if there would be 
any short
or long term problems with running 15.4 volts to the KX3 ? It is just slightly 
above the 
maximum recommended supply voltage

73
John, ZS5J.
__

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http://elecraft.365791.n2.nabble.com/KX3-power-supply-tp7612732p7612736.html
Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] KX3 power supply

[Nr4c]

I'd look to reduce the voltage about half a bolt before I'd use it with a KX3. 

Sent from my iPhone
...nr4c. bill


> On Jan 18, 2016, at 3:43 PM, John Kramer  wrote:
> 
> Someone on this reflector suggested a power supply off eBay, that could be 
> used 
> with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I 
> bought one, 
> this is the one…
> 
> http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22
>  
> 
> 
> It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 
> amps, and only sells 
> for $ 7.79 including free shipping from Hong Kong.
> Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked 
> up to a volt meter
> and see it is 15.4 volts. I know it is better for TX IMD to have higher 
> voltage supplied to the 
> KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be 
> too much
> for the KX3. I see in the KX3 manual specs, that recommended supply voltage 
> is 8 - 15 volts.
> I would hate to hurt my KX3 with over voltage……anyone know if there would be 
> any short
> or long term problems with running 15.4 volts to the KX3 ? It is just 
> slightly above the 
> maximum recommended supply voltage
> 
> 73
> John, ZS5J.
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Re: [Elecraft] [K3] CW Message Memories

[Bill Conkling]

You are correct that the KDVR3 is not needed for CW messages.  However, you 
must be in CW mode (or one of the two DATA sub-modes PSK-D or FSK-D) for these 
messages to work.  And, if you are set to SPLIT operation, VFO B must also be 
in CW mode.

They also work in TEST mode.  However, be careful, my K3S MODE button is more 
fussy than the button on my K3 and sometimes when trying to get the TEST mode, 
I press the  button not quite right and it goes to SSB/LSB so that when I press 
it again, now i’m in TEST mode, but in SSB instead of CW.

…bill  nr4c

> On Jan 18, 2016, at 3:16 PM, David Christ  wrote:
> 
> I have myself confused.  Is the KDVR3 required to use the CW message 
> memories? At first I thought it wasn’t but I used the K3 Utility to load some 
> messages into the CW memories.  Then I placed the K3 into test mode and CW 
> mode.  When I press any of the M1-M4 keys I get the message  “NO DVR” in the 
> VFO B area.  So is the KDVR3 required or am I doing something wrong.  Neither 
> the K3 manual or the Cady book have helped me understand this.  Neither says 
> the KDVR3 is needed and the KDVR3 manual only talks about voice recording 
> which implies it is not involved with CW message memories.
> 
> David K0LUM
> 
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[Elecraft] K3 - KIO3B setup

[N2TK, Tony]

I installed the KIO3B kit. I have it set up as the original KIO3 - K3- RS232
to P3 to PC/SteppIR. Accessory plug with FSK interface and audio in and out
cables to audio board. I use LP-Bridge. Everything is working fine as it was
before the upgrade.

Now I want to take advantage of the features of the KIO3B kit.

 

I have the CBLP3T cable for the K3 to the P3. 

I will replace the RS232 with the USB to the PC.

I will remove the audio in and out cables. 

 

Is there anything special I need to do now that I will be using a USB port
instead of the RS232? 

What about with LP-Bridge? Anything I need to do with it? 

Where is the best place to hook up the SteppiR now that I don't have an
RS232 connecting to the PC?

 

Tnx for any feedback.

73,

N2TK, Tony

 

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[Elecraft] F/S K3 KIO3

[N2TK, Tony]

Installed a KIO3B kit. I have extra the KIO3 that shipped with the rig
several years ago. The KIO3 works fine.

 

KIO3A Main board

D-sub RS232 IO Board - pullup resistors have been added.

Audio IO Module with 4 of the coils jumpered out as per one of the earlier
mods.

KIO3 Panel.

Mounting hardware - does not include the stand-off as it is needed for the
KIO3B.

 

If interested make a realistic offer plus postage,

 

73,

N2TK, Tony

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[Elecraft] [K3] CW Message Memories

[David Christ]

I have myself confused.  Is the KDVR3 required to use the CW message memories? 
At first I thought it wasn’t but I used the K3 Utility to load some messages 
into the CW memories.  Then I placed the K3 into test mode and CW mode.  When I 
press any of the M1-M4 keys I get the message  “NO DVR” in the VFO B area.  So 
is the KDVR3 required or am I doing something wrong.  Neither the K3 manual or 
the Cady book have helped me understand this.  Neither says the KDVR3 is needed 
and the KDVR3 manual only talks about voice recording which implies it is not 
involved with CW message memories.

David K0LUM

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Re: [Elecraft] F/S K3 KIO3

[Lewis Phelps]

Folks, my need for a KIO3 has been met.  Thanks.

Lew N6LEW


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Re: [Elecraft] KX3 power supply

[Clay Autery]

And you could always put together a little inline circuit to drop the
voltage down to 13.8-14.1 or so...

73,

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Clay Autery

On 1/18/2016 3:17 PM, John Kramer wrote:
> Thanks for the info Bob, and it’s reassuring to see that the KX3 has 
> protection for 
> over voltage.
> One caveat with this PSU - I just tried to insert the DC plug from this  PSU 
> to the KX3, 
> and I see it is too large for the KX3. Not a big deal, I will just cut it off 
> and fit the correct
> size DC plug
>
> 73
>
> John, ZS5J
>
>
>
>
> On 18 Jan 2016, at 11:09 PM, Bob N3MNT  wrote:
>
> The KX3 will shut down if the voltage is too high.
>
>
>
>
>
> Someone on this reflector suggested a power supply off eBay, that could be 
> used 
> with the KX3 about 2 months ago. It is intended for Toshiba laptops. So I 
> bought one, 
> this is the one…
>
> http://www.ebay.com/itm/15V-5A-AC-Adapter-Charger-Power-Supply-For-Toshiba-Tecra-A6-A7-A8-A9-A10-Laptop-/381356162365?hash=item58ca993d3d:g:Yk0AAOSwMmBVxX22
>  
> 
>
> It terminates in the right plug for the KX3 and is rated at 15 volts at max 5 
> amps, and only sells 
> for $ 7.79 including free shipping from Hong Kong.
> Anyway, it is cheap as chips so I bought one, and it arrived today. I hooked 
> up to a volt meter
> and see it is 15.4 volts. I know it is better for TX IMD to have higher 
> voltage supplied to the 
> KX3 rather than a voltage too low, but I am concerned that 15.4 volts may be 
> too much
> for the KX3. I see in the KX3 manual specs, that recommended supply voltage 
> is 8 - 15 volts.
> I would hate to hurt my KX3 with over voltage……anyone know if there would be 
> any short
> or long term problems with running 15.4 volts to the KX3 ? It is just 
> slightly above the 
> maximum recommended supply voltage
>
> 73
> John, ZS5J.
> __
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