Re: [Elecraft] Silent power supply for a K3s

[Bill Stravinsky via Elecraft]

 Somewhere around 1980 I was talked into buying a power supply at a hamfest by 
my good friend who was a great technician.  He told me it was a terrific deal.  
He was right.  I don't remember what I paid for it but I know it was lessthan 
$100.  It was a 56 amp rack mounted Llamda metered supply.  The model is an LM 
G12-M.  I believe it weighs about 75 pounds.  I used to have it in a relay rack 
at my old QTH shack.  In my present shack I have it sitting on a furnituredolly 
which makes it easy to roll around on the floor.  It sits under my desk.  It 
developed an audible arc when turned on so I leave it on 24 - 7.  I'm sure the 
new cost of it would be pretty high but I'm so glad I followed my friend's 
advice tobuy it.  No RFI and no fans.
BillK3WJV

On Sunday, June 9, 2019, 4:30:07 PM EDT, Ken Winterling  
wrote:  
 
 I use an IOTA DLS-55 SMPS power supply (https://www.iotaengineering.com/
dls55.htm).  It provides 55 amps, doesn’t produce RFI, is audibly quiet,
and rugged.  Mine is mounted under the radio table and is on 24/7/365.. I
never hear it. Iota also makes them in other output currents and voltages.

Ken
WA2LBI


On Sun, Jun 9, 2019 at 3:27 PM Bob McGraw K4TAX  wrote:

> I find Mark's point very important.  Obtain and use a supply which is
> more than adequate for the service or load.  Thus a 25 amp supply
> feeding a radio drawing 20+ amps will need lots of cooling.  This is
> not the way to do it.  Get a 50 amp supply for a radio drawing 20+ amps
> and the fan(s) will likely never come on.    Go the cheap way and get
> the cheap results.    Do it right and be happy.  Don't be a cheap ham
> and then complain about the product you purchased.
>
> There is more to choosing a power supply than volts and amps. How about
> duty cycle?  And CCS rated supplies vs. ICAS rated supplies.  Humm...
>
> 73
>
> Bob, K4TAX
>
>
> On 6/9/2019 2:12 PM, Mark Murray via Elecraft wrote:
> > Peter,
> >
> > Check out the high amperage 13,8 volt power supplies offered by Samlex
> > America at the following link, and in particular their 100-amp -plus
> > (continuous) supplies where the fans do not activate for low draws.  You
> had
> > mentioned something about price not being so important.  These ain't
> cheap.
> > 73 de Mark .w2or.
> >
>
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Re: [Elecraft] K4 and RX Antenna

[Wayne Burdick]

Yes. Each receiver on a basic K4 can have different bands, operating modes, 
filter bandwidths, NR, NB, notch, gain, squelch, text decode modes, etc.  

73,
Wayne
N6KR


elecraft.com

> On Jun 9, 2019, at 8:27 PM, Paul Kiciak  wrote:
> 
> Many thanks , Wayne.
> 
> A related question re a single ADC K4 -Will it be possible to select 
> different RX BW's
> (and modes) for the main and sub-RX's?
> 
> Thaks and 73.,
> Paul N2PK
> 
>> On 6/8/2019 1:03 PM, Wayne Burdick wrote:
>> Paul (N2PK) wrote:
>> 
>>> Will the single ADC K4, without the KAT4, support an RX antenna?
>> Yes. Even without a KAT4, you'd have two RX antenna inputs to choose from 
>> (RX ANT IN1 and RX ANT IN2). The selection is stored per-band.
>> 
>> 73,
>> Wayne
>> N6KR
>> 
>> 
>> 
> 
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Re: [Elecraft] KX3 and the Sigmalink USB

[Neil Zampella]

Why must you turn them off ... I've not touched either, and have no
problems with digital modes.   I also use a USB soundcard to keep
computer sounds separate.

In DATA A, the MIC button functions are disabled.    And Fred Cady, KE7Z
(SK) in his KX3 book makes no mention of having to do anything with the
bias.

As far as the speaker, I would rather not have to listen to the
cacophony of tones using WSJT-X modes, but if you need to hear it, you
can usually run the a USB soundcard's line-in through your computer
speaker or headphone jack.

Neil, KN3ILZ

On 6/9/2019 11:25 PM, Nr4c wrote:

Yes, but you still must turn OFF bias and BTNS.

This arrangement works very well. I like to put a spitter in the phones jack 
with one end to computer the other for ear buds so I can monitor the radio 
audio. Elecraft still hasn’t added a feature to have phones plus speaker as in 
the K-Line.

Sent from my iPhone
...nr4c. bill



On Jun 9, 2019, at 8:24 AM, Neil Zampella  wrote:

FWIW... you don't need a signalink to connect the KX3 for digital modes.

All you need is the KXUSB cable for CAT control (& PTT), and 3.5 cables
for the MIC and PHONO jackts to the Line out/speakers and line in on the
computer.

Very simple, and no having to worry about switching about jumpers or
adding capacitors.

Neil, KN3ILZ


On 6/8/2019 1:47 PM, Terry Basom wrote:
The SLMODKX3 jumper module for using the Signalink USB with a KX3 or KX2,
has a DC blocking capacitor built in.

Can anyone tell me where it is in the circuit and a value? It eliminates
turning off the mike bias in the menu when using the Signalink USB. I am
just using jumpers and would like to put in the capacitor to eliminate
having to turn off mike bias and having to remember to turn it back on.


---
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Re: [Elecraft] Silent power supply for a K3s

[Bert]

How would a switched PS take out a radio?

Bert VE3NR



On 6/9/2019 11:40 PM, Jim - N4ST wrote:

I don't know how common it is, but eHam lists several failures of the
MFJ-4230MV supply that took out the rig attached to it.
Looking at the reviews they are pretty much a 5 (love it) or a 0 (it smoked
my rig when it failed).


73,
Jim - N4ST


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Richard Zalewski
Sent: Sunday, June 9, 2019 19:53
To: Leroy Buller 
Cc: Elecraft Reflector 
Subject: Re: [Elecraft] Silent power supply for a K3s

I did two of the Samlex and returned them both.  The fan problem drove me
crazy.  I replaced it with a MFJ-4230MV and love it.  Quiet cool and good
metering.

Richard
*W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU,
J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV


*Be joyful in hope, patient in affliction, faithful in prayer*

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Re: [Elecraft] KPA500 and KAT500 incompatible frequency interface

[W2xj]

Bashing???

Sent from my iPad

> On Jun 10, 2019, at 12:04 AM, Jim Brown  wrote:
> 
>> On 6/9/2019 9:42 AM, W2xj wrote:
>> Friends don’t let friends use Kenwood.
> 
> Let's stop with the bashing. Of the JA radios, I consider it the better one. 
> Further, ARRL Lab tests show their radios to be cleaner on TX, ranking not 
> all that far behind Elecraft radios.
> 
> 73, Jim K9YC
> 
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[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

   A few minutes after the second net I started dinner.  Then I walked 
out onto the deck.  I took a few steps when I heard the crack of a 
branch.  Deer don't do that.  I turned and saw a round black shape which 
ran like a bear.  Hmmm... black bear, cool.  Not very big but I haven't 
seen one in many years.  Nothing much for it to eat so it must have been 
moving through the corridor between watering holes.  The salmon berries 
are too green but getting larger.


  Twenty meters went well as I compared my two antennas.  Deep QSB on 
everyone.  Topics include spending time at the bench, a ten meter 
opening, and crop planting schedules.  Any product which depends on 
grain will be effected.


   Cool weather is easing slowly.  A few of you are getting down right 
hot.  But 80 in Georgia in June is not that bad though the humidity must 
be in the mid 90s.  If you don't move too fast it's comfortable.


   Forty meters worked well to only a couple folks.  I heard nothing 
else.  Both antennas worked about the same.  QSB would cause one to work 
better than the other so I kept switching.  I would send on whichever 
heard the best.  The rebuilt antenna works better north south than it 
does east west.  If I could only launch it  50 feet higher into that fir 
tree.



  On 14050.5 kHz at 2200z:

K0DTJ - Brian - CA

NO8V - John - MI

W7LXN - Myron - AZ

K6XK - Roy - IA

K4TO - Dave - Ky

AB9V - Mike - IN

K4JPN - Steve - GA


  On 7047.5 kHz at z:

K6PJV - Dale - CA

K0DTJ - Brian - CA


  Until next week 73,

 Kevin.  KD5ONS


-

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Re: [Elecraft] KPA500 and KAT500 incompatible frequency interface

[Jim Brown]

On 6/9/2019 9:42 AM, W2xj wrote:

Friends don’t let friends use Kenwood.


Let's stop with the bashing. Of the JA radios, I consider it the better 
one. Further, ARRL Lab tests show their radios to be cleaner on TX, 
ranking not all that far behind Elecraft radios.


73, Jim K9YC

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Re: [Elecraft] KX3 and the Sigmalink USB

[Bob McGraw K4TAX]

The Signalink USB has a monitor jack. Thus one can plug in headphones on the 
back of the unit.  And using a 0.1 cap in place of the internal jumper in the 
unit eliminates the need to turn off bias. 

Seems all of your concerns are resolved. 

Bob, K4TAX


Sent from my iPhone

> On Jun 9, 2019, at 10:25 PM, Nr4c  wrote:
> 
> Yes, but you still must turn OFF bias and BTNS. 
> 
> This arrangement works very well. I like to put a spitter in the phones jack 
> with one end to computer the other for ear buds so I can monitor the radio 
> audio. Elecraft still hasn’t added a feature to have phones plus speaker as 
> in the K-Line. 
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
>> On Jun 9, 2019, at 8:24 AM, Neil Zampella  wrote:
>> 
>> FWIW... you don't need a signalink to connect the KX3 for digital modes.
>> 
>> All you need is the KXUSB cable for CAT control (& PTT), and 3.5 cables
>> for the MIC and PHONO jackts to the Line out/speakers and line in on the
>> computer.
>> 
>> Very simple, and no having to worry about switching about jumpers or
>> adding capacitors.
>> 
>> Neil, KN3ILZ
>> 
>>> On 6/8/2019 1:47 PM, Terry Basom wrote:
>>> The SLMODKX3 jumper module for using the Signalink USB with a KX3 or KX2,
>>> has a DC blocking capacitor built in.
>>> 
>>> Can anyone tell me where it is in the circuit and a value? It eliminates
>>> turning off the mike bias in the menu when using the Signalink USB. I am
>>> just using jumpers and would like to put in the capacitor to eliminate
>>> having to turn off mike bias and having to remember to turn it back on.
>>> 
>> 
>> ---
>> This email has been checked for viruses by AVG.
>> https://www.avg.com
>> 
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Re: [Elecraft] Silent power supply for a K3s

[Jim - N4ST]

I don't know how common it is, but eHam lists several failures of the
MFJ-4230MV supply that took out the rig attached to it.
Looking at the reviews they are pretty much a 5 (love it) or a 0 (it smoked
my rig when it failed).

 
73,
Jim - N4ST


-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Richard Zalewski
Sent: Sunday, June 9, 2019 19:53
To: Leroy Buller 
Cc: Elecraft Reflector 
Subject: Re: [Elecraft] Silent power supply for a K3s

I did two of the Samlex and returned them both.  The fan problem drove me
crazy.  I replaced it with a MFJ-4230MV and love it.  Quiet cool and good
metering.

Richard
*W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU,
J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV


*Be joyful in hope, patient in affliction, faithful in prayer*

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Re: [Elecraft] K4 and RX Antenna

[Paul Kiciak]

Many thanks , Wayne.

A related question re a single ADC K4 -Will it be possible to select 
different RX BW's

(and modes) for the main and sub-RX's?

Thaks and 73.,
Paul N2PK

On 6/8/2019 1:03 PM, Wayne Burdick wrote:

Paul (N2PK) wrote:


Will the single ADC K4, without the KAT4, support an RX antenna?

Yes. Even without a KAT4, you'd have two RX antenna inputs to choose from (RX 
ANT IN1 and RX ANT IN2). The selection is stored per-band.

73,
Wayne
N6KR





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Re: [Elecraft] help

[Nr4c]

For what?  No message here. 

Sent from my iPhone
...nr4c. bill


> On Jun 9, 2019, at 4:07 AM, H. K.  wrote:
> 
> 
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Re: [Elecraft] KX3 and the Sigmalink USB

[Nr4c]

Yes, but you still must turn OFF bias and BTNS. 

This arrangement works very well. I like to put a spitter in the phones jack 
with one end to computer the other for ear buds so I can monitor the radio 
audio. Elecraft still hasn’t added a feature to have phones plus speaker as in 
the K-Line. 

Sent from my iPhone
...nr4c. bill


> On Jun 9, 2019, at 8:24 AM, Neil Zampella  wrote:
> 
> FWIW... you don't need a signalink to connect the KX3 for digital modes.
> 
> All you need is the KXUSB cable for CAT control (& PTT), and 3.5 cables
> for the MIC and PHONO jackts to the Line out/speakers and line in on the
> computer.
> 
> Very simple, and no having to worry about switching about jumpers or
> adding capacitors.
> 
> Neil, KN3ILZ
> 
>> On 6/8/2019 1:47 PM, Terry Basom wrote:
>> The SLMODKX3 jumper module for using the Signalink USB with a KX3 or KX2,
>> has a DC blocking capacitor built in.
>> 
>> Can anyone tell me where it is in the circuit and a value? It eliminates
>> turning off the mike bias in the menu when using the Signalink USB. I am
>> just using jumpers and would like to put in the capacitor to eliminate
>> having to turn off mike bias and having to remember to turn it back on.
>> 
> 
> ---
> This email has been checked for viruses by AVG.
> https://www.avg.com
> 
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Re: [Elecraft] Silent power supply for a K3s

[Michael Walker]

How old was the RS35 before it started to buzz?

Could this be as simple as buying another RS35?

Mike va3mw


On Sun, Jun 9, 2019 at 7:54 PM Richard Zalewski  wrote:

> I did two of the Samlex and returned them both.  The fan problem drove me
> crazy.  I replaced it with a MFJ-4230MV and love it.  Quiet cool and good
> metering.
>
> Richard
> *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU,
> J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV
>
>
> *Be joyful in hope, patient in affliction, faithful in prayer*
>
>
> On Sun, Jun 9, 2019 at 4:39 PM Leroy Buller  wrote:
>
> > As alway...way cool.
> >
> > Lee K0WA
> >
> > On Sun, Jun 9, 2019, 6:16 PM Jim Brown 
> wrote:
> >
> > > On 6/9/2019 7:52 AM, Peter Dougherty wrote:
> > > > Any suggestions? Within reason, cost isn't a
> > > > major issue.
> > >
> > > Sure. Another linear Astron, maybe bigger, higher power rated. I don't
> > > know how common the buzzing problem is. As Lee suggested, tighten
> screws
> > > and bolts on the one you have if you still have it.
> > >
> > > Another important thing with Astrons is to fix their bonding problem,
> as
> > > described in this link.
> > > http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf
> > >
> > > BTW -- I still do the big float-charged battery thing, but it's now a
> > > 100Ah Bioenne Power LiFePO4, and the charger is a spare power supply
> for
> > > one of my Thinkpads, using a  Genasun solar charge controller.  That's
> > > not an inexpensive solution, but it IS a very good UPS for the radios,
> > > AND the supply voltage stays above 13.2V under load as measured within
> > > the K3, there's less IMD on TX. The Genasun controller is RF quiet, and
> > > allows the Thinkpad PSU to charge the battery at about 7.5A. Make sure
> > > that you buy the 14.2V version for LiFePO4 chemistry.
> > >
> > >
> > >
> >
> https://www.amazon.com/Genasun-GV-10-Li-14-2V-Controller-Lithium-Batteries/dp/B01N6AXQZH/ref=asc_df_B01N6AXQZH/?tag=hyprod-20=df0=198068984819=1o4=g=17014603795544971507c===9032155=pla-354296381972=1
> > >
> > > I use a separate sealed lead-acid battery to run the other 12V stuff,
> > > which includes antenna switching relays, LED lighting, three LCD
> > > monitors, and several accessories. It's charged by another Thinkpad PSU
> > > with a lead-acid version of the same Genasun controller.  I do, of
> > > course, have multi-turn ferrite chokes on the chargers and on the LCD
> > > monitor power and video lines.
> > >
> > > For about half of my contesting, my K3s run at about 50W driving an 87A
> > > or 25W driving a KPA500, and this DC power arrangement has no trouble
> > > keeping up.
> > >
> > > 73, Jim K9YC
> > >
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Re: [Elecraft] Silent power supply for a K3s

[Richard Zalewski]

I did two of the Samlex and returned them both.  The fan problem drove me
crazy.  I replaced it with a MFJ-4230MV and love it.  Quiet cool and good
metering.

Richard
*W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU,
J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV


*Be joyful in hope, patient in affliction, faithful in prayer*


On Sun, Jun 9, 2019 at 4:39 PM Leroy Buller  wrote:

> As alway...way cool.
>
> Lee K0WA
>
> On Sun, Jun 9, 2019, 6:16 PM Jim Brown  wrote:
>
> > On 6/9/2019 7:52 AM, Peter Dougherty wrote:
> > > Any suggestions? Within reason, cost isn't a
> > > major issue.
> >
> > Sure. Another linear Astron, maybe bigger, higher power rated. I don't
> > know how common the buzzing problem is. As Lee suggested, tighten screws
> > and bolts on the one you have if you still have it.
> >
> > Another important thing with Astrons is to fix their bonding problem, as
> > described in this link.
> > http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf
> >
> > BTW -- I still do the big float-charged battery thing, but it's now a
> > 100Ah Bioenne Power LiFePO4, and the charger is a spare power supply for
> > one of my Thinkpads, using a  Genasun solar charge controller.  That's
> > not an inexpensive solution, but it IS a very good UPS for the radios,
> > AND the supply voltage stays above 13.2V under load as measured within
> > the K3, there's less IMD on TX. The Genasun controller is RF quiet, and
> > allows the Thinkpad PSU to charge the battery at about 7.5A. Make sure
> > that you buy the 14.2V version for LiFePO4 chemistry.
> >
> >
> >
> https://www.amazon.com/Genasun-GV-10-Li-14-2V-Controller-Lithium-Batteries/dp/B01N6AXQZH/ref=asc_df_B01N6AXQZH/?tag=hyprod-20=df0=198068984819=1o4=g=17014603795544971507c===9032155=pla-354296381972=1
> >
> > I use a separate sealed lead-acid battery to run the other 12V stuff,
> > which includes antenna switching relays, LED lighting, three LCD
> > monitors, and several accessories. It's charged by another Thinkpad PSU
> > with a lead-acid version of the same Genasun controller.  I do, of
> > course, have multi-turn ferrite chokes on the chargers and on the LCD
> > monitor power and video lines.
> >
> > For about half of my contesting, my K3s run at about 50W driving an 87A
> > or 25W driving a KPA500, and this DC power arrangement has no trouble
> > keeping up.
> >
> > 73, Jim K9YC
> >
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Re: [Elecraft] Silent power supply for a K3s

[Rick WA6NHC]

The issue with oversizing it is (for the energy conscious) a linear 
supply demands more, ALL the time (it's inefficient with energy).


In some places it matters because of the KwH costs.  pennies turn into 
dollars.


(Not here, I was used to the higher prices and after I moved here, I 
just stopped caring because the costs were 1/3 or less. I've even been 
known to  run the air conditioner here!)


Rick nhc

On 6/9/2019 12:26 PM, Bob McGraw K4TAX wrote:
I find Mark's point very important.   Obtain and use a supply which is 
more than adequate for the service or load.  Thus a 25 amp supply 
feeding a radio drawing 20+ amps will need lots of cooling.   This is 
not the way to do it.   Get a 50 amp supply for a radio drawing 20+ 
amps and the fan(s) will likely never come on. Go the cheap way 
and get the cheap results.    Do it right and be happy.   Don't be a 
cheap ham and then complain about the product you purchased.


There is more to choosing a power supply than volts and amps. How 
about duty cycle?  And CCS rated supplies vs. ICAS rated supplies.   
Humm...


73

Bob, K4TAX


On 6/9/2019 2:12 PM, Mark Murray via Elecraft wrote:

Peter,

Check out the high amperage 13,8 volt power supplies offered by Samlex
America at the following link, and in particular their 100-amp -plus
(continuous) supplies where the fans do not activate for low draws.  
You had
mentioned something about price not being so important.  These ain't 
cheap.

73 de Mark .w2or.



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Re: [Elecraft] Silent power supply for a K3s

[Leroy Buller]

As alway...way cool.

Lee K0WA

On Sun, Jun 9, 2019, 6:16 PM Jim Brown  wrote:

> On 6/9/2019 7:52 AM, Peter Dougherty wrote:
> > Any suggestions? Within reason, cost isn't a
> > major issue.
>
> Sure. Another linear Astron, maybe bigger, higher power rated. I don't
> know how common the buzzing problem is. As Lee suggested, tighten screws
> and bolts on the one you have if you still have it.
>
> Another important thing with Astrons is to fix their bonding problem, as
> described in this link.
> http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf
>
> BTW -- I still do the big float-charged battery thing, but it's now a
> 100Ah Bioenne Power LiFePO4, and the charger is a spare power supply for
> one of my Thinkpads, using a  Genasun solar charge controller.  That's
> not an inexpensive solution, but it IS a very good UPS for the radios,
> AND the supply voltage stays above 13.2V under load as measured within
> the K3, there's less IMD on TX. The Genasun controller is RF quiet, and
> allows the Thinkpad PSU to charge the battery at about 7.5A. Make sure
> that you buy the 14.2V version for LiFePO4 chemistry.
>
>
> https://www.amazon.com/Genasun-GV-10-Li-14-2V-Controller-Lithium-Batteries/dp/B01N6AXQZH/ref=asc_df_B01N6AXQZH/?tag=hyprod-20=df0=198068984819=1o4=g=17014603795544971507c===9032155=pla-354296381972=1
>
> I use a separate sealed lead-acid battery to run the other 12V stuff,
> which includes antenna switching relays, LED lighting, three LCD
> monitors, and several accessories. It's charged by another Thinkpad PSU
> with a lead-acid version of the same Genasun controller.  I do, of
> course, have multi-turn ferrite chokes on the chargers and on the LCD
> monitor power and video lines.
>
> For about half of my contesting, my K3s run at about 50W driving an 87A
> or 25W driving a KPA500, and this DC power arrangement has no trouble
> keeping up.
>
> 73, Jim K9YC
>
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Re: [Elecraft] Silent power supply for a K3s

[Jim Brown]

On 6/9/2019 7:52 AM, Peter Dougherty wrote:

Any suggestions? Within reason, cost isn't a
major issue.


Sure. Another linear Astron, maybe bigger, higher power rated. I don't 
know how common the buzzing problem is. As Lee suggested, tighten screws 
and bolts on the one you have if you still have it.


Another important thing with Astrons is to fix their bonding problem, as 
described in this link. 
http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf


BTW -- I still do the big float-charged battery thing, but it's now a 
100Ah Bioenne Power LiFePO4, and the charger is a spare power supply for 
one of my Thinkpads, using a  Genasun solar charge controller.  That's 
not an inexpensive solution, but it IS a very good UPS for the radios, 
AND the supply voltage stays above 13.2V under load as measured within 
the K3, there's less IMD on TX. The Genasun controller is RF quiet, and 
allows the Thinkpad PSU to charge the battery at about 7.5A. Make sure 
that you buy the 14.2V version for LiFePO4 chemistry.


https://www.amazon.com/Genasun-GV-10-Li-14-2V-Controller-Lithium-Batteries/dp/B01N6AXQZH/ref=asc_df_B01N6AXQZH/?tag=hyprod-20=df0=198068984819=1o4=g=17014603795544971507c===9032155=pla-354296381972=1

I use a separate sealed lead-acid battery to run the other 12V stuff, 
which includes antenna switching relays, LED lighting, three LCD 
monitors, and several accessories. It's charged by another Thinkpad PSU 
with a lead-acid version of the same Genasun controller.  I do, of 
course, have multi-turn ferrite chokes on the chargers and on the LCD 
monitor power and video lines.


For about half of my contesting, my K3s run at about 50W driving an 87A 
or 25W driving a KPA500, and this DC power arrangement has no trouble 
keeping up.


73, Jim K9YC

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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[E.H. Russell]

What he said.

73 ED W2RF



-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Bob McGraw K4TAX
Sent: Sunday, June 9, 2019 3:33 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

I've been running Window 10 Pro since the initial release.   I am very pleased 
with it in all aspects.  Yes, I did have a learning curve initially, but I've 
found every piece of software and hardware runs flawlessly.  Most of the 
issues were my lack of knowledge and understanding on how things work.   And 
there i,s with that, not how I expected them to work.   It won't go that way.

If you've not taken time to experience and learn Windows 10 but are only taking 
what someone else said, you've missed the boat. Chances are they didn't take 
time to experience and learn Windows 10 either and thus what they say is really 
not likely valid.

73

Bob, K4TAX


On 6/9/2019 2:12 PM, Edward R Cole wrote:
> I resisted upgrading my winXP23 SP3 computer because essential 
> accessories were not supported with win10 drivers.  A few months ago a 
> better device was offered that interfaces with USB and runs under 
> win10, so I bought a new i5 win10.  I will be offering my M-Audio 
> Delta44 and emu-0202 for sale (as-is).  New device is called UADC4 
> which replaces using a soundcard in receive.
>
> Haven't done the changeover as I had many other challenges for my time 
> that were higher priority.  May get to the installation of sw in the 
> new machine and to the cut-over soon.  I will be able to run my ham 
> programs without Internet as I have GPS time, but its capable if I 
> need communication for any of those programs (reporting or 
> upgrading).  My K3, KX3, etc firmware updates, for example, or FT8 and 
> WSPR reporting sites.
>
> I have another i5 for e-mail and normal internet use.  I also use it 
> for running prop-log sites in parallel with the ham computer (less 
> dialog window clutter).
>
> 73, Ed - KL7UW
>   http://www.kl7uw.com
> Dubus-NA Business mail:
>   dubus...@gmail.com
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Re: [Elecraft] [OT] RS-35M noise

[Rick Bates (WA6NHC)]

I took the easy way out.  A used notepad provided the cardboard which was 
folded and wedged under the top cover.  Problem solved. 

Rick WA6NHC

Smell Czech correction happens

> On Jun 9, 2019, at 3:24 PM, inventor61 .  wrote:
> 
> Hank
> 
> I am only fabricating new top covers for the 35A size Astron units.
> 
> For the majority of acoustic noise situations in the 35 amp size units (the
> variable and the fixed voltage models) the height of the steel cabinet is
> insufficient to keep the sheet metal of the lid away from the flux lines of
> the transformer.
> 
> The resulting eddy currents decay and 'fight' against the transformer field
> itself.
> This results in the buzzing type hum people experience.
> 
> Over time this vibration can loosen the transformer windings so it can buzz
> by itself.
> But generally, the bulk of the objectionable acoustic noise is from the top
> cover..
> 
> You can confirm the cause by simply removing the cover and operating the
> supply.
> There are only seven screws, as you probably already know.
> 
> Suitable electrical safety precautions are to be taken, of course.
> 
> If you have a 35A Astron unit and by the above method you can show yourself
> that the buzzing/hum noise is a result of the magnetic coupling /
> circulating current scenario I have described, this new composite cover
> will solve the problem - as well as reducing the obvious waste heat from
> the supply.
> 
> Steve KZ1X
> 
>> On Sun, Jun 9, 2019 at 6:17 PM HB  wrote:
>> 
>> Some more of the factory cork pieces between the transformer and case
>> fixed mine up – the 50 also.
>> 
>> 
>> 
>> Hank
>> 
>> K4HYJ
>> 
>> 
>> 
>> *From: *inventor61 . 
>> *Sent: *Sunday, June 9, 2019 1:48 PM
>> *To: *li...@w2irt.net; elecraft@mailman.qth.net
>> *Subject: *[Elecraft] [OT] RS-35M noise
>> 
>> 
>> 
>> Peter
>> 
>> 
>> 
>> I now have the prototypes completed of a composite material cover to
>> 
>> replace Astron 35A size power supply covers.
>> 
>> 
>> 
>> This solves the acoustic noise problem.
>> 
>> 
>> 
>> The new cover looks terrific and is a 1:1 swap with the old one.
>> 
>> 
>> 
>> I went through *exactly* the same problem you describe, and then buying the
>> 
>> same replacement supply, then modifying it, ad nauseum, before fixing the
>> 
>> original issue.
>> 
>> 
>> 
>> I expect to be able to produce these (it's done on a CNC machine) in the
>> 
>> coming weeks.
>> 
>> I have several requests already.
>> 
>> 
>> 
>> I do not yet know the cost but it won't be outrageous.
>> 
>> Would this interest you?  It has certainly interested others!
>> 
>> 
>> 
>> 73 Steve KZ1X
>> 
>> __
>> 
>> Elecraft mailing list
>> 
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> 
>> Help: http://mailman.qth.net/mmfaq.htm
>> 
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>> 
>> 
>> 
>> This list hosted by: http://www.qsl.net
>> 
>> Please help support this email list: http://www.qsl.net/donate.html
>> 
>> Message delivered to h...@optilink.us
>> 
>> 
>> 
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Re: [Elecraft] [OT] RS-35M noise

[inventor61 .]

Hank

I am only fabricating new top covers for the 35A size Astron units.

For the majority of acoustic noise situations in the 35 amp size units (the
variable and the fixed voltage models) the height of the steel cabinet is
insufficient to keep the sheet metal of the lid away from the flux lines of
the transformer.

The resulting eddy currents decay and 'fight' against the transformer field
itself.
This results in the buzzing type hum people experience.

Over time this vibration can loosen the transformer windings so it can buzz
by itself.
But generally, the bulk of the objectionable acoustic noise is from the top
cover..

You can confirm the cause by simply removing the cover and operating the
supply.
There are only seven screws, as you probably already know.

Suitable electrical safety precautions are to be taken, of course.

If you have a 35A Astron unit and by the above method you can show yourself
that the buzzing/hum noise is a result of the magnetic coupling /
circulating current scenario I have described, this new composite cover
will solve the problem - as well as reducing the obvious waste heat from
the supply.

Steve KZ1X

On Sun, Jun 9, 2019 at 6:17 PM HB  wrote:

> Some more of the factory cork pieces between the transformer and case
> fixed mine up – the 50 also.
>
>
>
> Hank
>
> K4HYJ
>
>
>
> *From: *inventor61 . 
> *Sent: *Sunday, June 9, 2019 1:48 PM
> *To: *li...@w2irt.net; elecraft@mailman.qth.net
> *Subject: *[Elecraft] [OT] RS-35M noise
>
>
>
> Peter
>
>
>
> I now have the prototypes completed of a composite material cover to
>
> replace Astron 35A size power supply covers.
>
>
>
> This solves the acoustic noise problem.
>
>
>
> The new cover looks terrific and is a 1:1 swap with the old one.
>
>
>
> I went through *exactly* the same problem you describe, and then buying the
>
> same replacement supply, then modifying it, ad nauseum, before fixing the
>
> original issue.
>
>
>
> I expect to be able to produce these (it's done on a CNC machine) in the
>
> coming weeks.
>
> I have several requests already.
>
>
>
> I do not yet know the cost but it won't be outrageous.
>
> Would this interest you?  It has certainly interested others!
>
>
>
> 73 Steve KZ1X
>
> __
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>
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>
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>
> Please help support this email list: http://www.qsl.net/donate.html
>
> Message delivered to h...@optilink.us
>
>
>
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Re: [Elecraft] [OT] RS-35M noise

[HB]

Some more of the factory cork pieces between the transformer and case fixed 
mine up – the 50 also.

Hank
K4HYJ

From: inventor61 .
Sent: Sunday, June 9, 2019 1:48 PM
To: li...@w2irt.net; elecraft@mailman.qth.net
Subject: [Elecraft] [OT] RS-35M noise

Peter

I now have the prototypes completed of a composite material cover to
replace Astron 35A size power supply covers.

This solves the acoustic noise problem.

The new cover looks terrific and is a 1:1 swap with the old one.

I went through *exactly* the same problem you describe, and then buying the
same replacement supply, then modifying it, ad nauseum, before fixing the
original issue.

I expect to be able to produce these (it's done on a CNC machine) in the
coming weeks.
I have several requests already.

I do not yet know the cost but it won't be outrageous.
Would this interest you?  It has certainly interested others!

73 Steve KZ1X
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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Gwen Patton]

I have Win10 on my workbench PC. I'm reasonably familiar with it. I've used
Linux for years, but it doesn't have the applications that I need, so I
can't rely on it. There are attempts at replacing those apps, but they're
not ready for prime time. I *have* them, but I prefer the Windows
originals. I have digital electronics diagnostic tools that simply *refuse*
to work with Linux USB drivers. I've tried. Repeatedly. Until I nearly
pulled all my hair out. Then I went to the expense and bought that
aforementioned Win10 workbench PC...and a 4-channel Rigol oscilloscope. USB
scopes are neat, but they don't replace a standalone scope, and my old CRO
was NOT adequate to need.

I suppose I'll have to at least upgrade my main PC to Win10 sometime. When
I get some minutes in a row, I'll look into it.

73,
Gwen, NG3P

On Sun, Jun 9, 2019 at 3:33 PM Bob McGraw K4TAX  wrote:

> I've been running Window 10 Pro since the initial release.   I am very
> pleased with it in all aspects.  Yes, I did have a learning curve
> initially, but I've found every piece of software and hardware runs
> flawlessly.  Most of the issues were my lack of knowledge and
> understanding on how things work.   And there i,s with that, not how I
> expected them to work.   It won't go that way.
>
> If you've not taken time to experience and learn Windows 10 but are only
> taking what someone else said, you've missed the boat. Chances are they
> didn't take time to experience and learn Windows 10 either and thus what
> they say is really not likely valid.
>
> 73
>
> Bob, K4TAX
>
>
> On 6/9/2019 2:12 PM, Edward R Cole wrote:
> > I resisted upgrading my winXP23 SP3 computer because essential
> > accessories were not supported with win10 drivers.  A few months ago a
> > better device was offered that interfaces with USB and runs under
> > win10, so I bought a new i5 win10.  I will be offering my M-Audio
> > Delta44 and emu-0202 for sale (as-is).  New device is called UADC4
> > which replaces using a soundcard in receive.
> >
> > Haven't done the changeover as I had many other challenges for my time
> > that were higher priority.  May get to the installation of sw in the
> > new machine and to the cut-over soon.  I will be able to run my ham
> > programs without Internet as I have GPS time, but its capable if I
> > need communication for any of those programs (reporting or
> > upgrading).  My K3, KX3, etc firmware updates, for example, or FT8 and
> > WSPR reporting sites.
> >
> > I have another i5 for e-mail and normal internet use.  I also use it
> > for running prop-log sites in parallel with the ham computer (less
> > dialog window clutter).
> >
> > 73, Ed - KL7UW
> >   http://www.kl7uw.com
> > Dubus-NA Business mail:
> >   dubus...@gmail.com
> > __
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> > Help: http://mailman.qth.net/mmfaq.htm
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> >
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> > Message delivered to rmcg...@blomand.net
>
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-- 

-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
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Re: [Elecraft] Silent power supply for a K3s

[Ken Winterling]

I use an IOTA DLS-55 SMPS power supply (https://www.iotaengineering.com/
dls55.htm).  It provides 55 amps, doesn’t produce RFI, is audibly quiet,
and rugged.  Mine is mounted under the radio table and is on 24/7/365.. I
never hear it. Iota also makes them in other output currents and voltages.

Ken
WA2LBI


On Sun, Jun 9, 2019 at 3:27 PM Bob McGraw K4TAX  wrote:

> I find Mark's point very important.   Obtain and use a supply which is
> more than adequate for the service or load.  Thus a 25 amp supply
> feeding a radio drawing 20+ amps will need lots of cooling.   This is
> not the way to do it.   Get a 50 amp supply for a radio drawing 20+ amps
> and the fan(s) will likely never come on. Go the cheap way and get
> the cheap results.Do it right and be happy.   Don't be a cheap ham
> and then complain about the product you purchased.
>
> There is more to choosing a power supply than volts and amps. How about
> duty cycle?  And CCS rated supplies vs. ICAS rated supplies.   Humm...
>
> 73
>
> Bob, K4TAX
>
>
> On 6/9/2019 2:12 PM, Mark Murray via Elecraft wrote:
> > Peter,
> >
> > Check out the high amperage 13,8 volt power supplies offered by Samlex
> > America at the following link, and in particular their 100-amp -plus
> > (continuous) supplies where the fans do not activate for low draws.  You
> had
> > mentioned something about price not being so important.  These ain't
> cheap.
> > 73 de Mark .w2or.
> >
>
> __
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[Elecraft] A couple of K3 for sale

[K5WA]

Well, the K4 got my attention and I need to clear the decks so my XYL won't
buy too much furniture in retaliation.  I'm putting these 2 rigs up for sale
now and I'll sell the third one after a K4 ships in early 2020.  I will
deliver within 100 miles of Houston and $50 can be deducted from the prices
if I don't have to ship.  If an international shipment is needed, let's talk
to see how/if that can be done but I'd prefer CONUS.  Here is the blurb I'm
sending around to see if there is any interest:

 

I took some pictures of two rigs I'm selling now.  If you're looking for a
used competition grade K3, I think you would like either of these.  Be sure
and look at the comments beside most of the pictures which tell what I was
trying to communicate with each picture.  A full "new" pricing estimate is
there for comparison and to detail what is in each rig.  The actual selling
price is listed below.

 

https://photos.app.goo.gl/PQ9aWkhAcXCmnY5i7   This is S/N 752 which has the
USB connection (from the KIO3B upgrade) as well as the KSYN3 synthesizer
upgrade on main and sub receivers.  I'm listing this at $3200 shipped FedEx
ground for CONUS.

 

https://photos.app.goo.gl/kbmnKdbEDdJL4hEa7This is S/N 234 and has the 2
meter module, the K3SYN upgrade (MAIN and SUB), a couple more filters and
the general coverage band pass but no USB connection.  I'm listing this one
at $3400 shipped FedEx ground.

 

Hopefully these links work.  My photography skills are not the best but I
think someone would get a good idea of the condition of both rigs.  Contact
me directly with any questions.

 

Thanks,

 

Bob K5WA

 

 

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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Bob McGraw K4TAX]

I've been running Window 10 Pro since the initial release.   I am very 
pleased with it in all aspects.  Yes, I did have a learning curve 
initially, but I've found every piece of software and hardware runs 
flawlessly.  Most of the issues were my lack of knowledge and 
understanding on how things work.   And there i,s with that, not how I 
expected them to work.   It won't go that way.


If you've not taken time to experience and learn Windows 10 but are only 
taking what someone else said, you've missed the boat. Chances are they 
didn't take time to experience and learn Windows 10 either and thus what 
they say is really not likely valid.


73

Bob, K4TAX


On 6/9/2019 2:12 PM, Edward R Cole wrote:
I resisted upgrading my winXP23 SP3 computer because essential 
accessories were not supported with win10 drivers.  A few months ago a 
better device was offered that interfaces with USB and runs under 
win10, so I bought a new i5 win10.  I will be offering my M-Audio 
Delta44 and emu-0202 for sale (as-is).  New device is called UADC4 
which replaces using a soundcard in receive.


Haven't done the changeover as I had many other challenges for my time 
that were higher priority.  May get to the installation of sw in the 
new machine and to the cut-over soon.  I will be able to run my ham 
programs without Internet as I have GPS time, but its capable if I 
need communication for any of those programs (reporting or 
upgrading).  My K3, KX3, etc firmware updates, for example, or FT8 and 
WSPR reporting sites.


I have another i5 for e-mail and normal internet use.  I also use it 
for running prop-log sites in parallel with the ham computer (less 
dialog window clutter).


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com
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Re: [Elecraft] Silent power supply for a K3s

[Bob McGraw K4TAX]

I find Mark's point very important.   Obtain and use a supply which is 
more than adequate for the service or load.  Thus a 25 amp supply 
feeding a radio drawing 20+ amps will need lots of cooling.   This is 
not the way to do it.   Get a 50 amp supply for a radio drawing 20+ amps 
and the fan(s) will likely never come on. Go the cheap way and get 
the cheap results.    Do it right and be happy.   Don't be a cheap ham 
and then complain about the product you purchased.


There is more to choosing a power supply than volts and amps. How about 
duty cycle?  And CCS rated supplies vs. ICAS rated supplies.   Humm...


73

Bob, K4TAX


On 6/9/2019 2:12 PM, Mark Murray via Elecraft wrote:

Peter,

Check out the high amperage 13,8 volt power supplies offered by Samlex
America at the following link, and in particular their 100-amp -plus
(continuous) supplies where the fans do not activate for low draws.  You had
mentioned something about price not being so important.  These ain't cheap.
73 de Mark .w2or.



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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Edward R Cole]

I resisted upgrading my winXP23 SP3 computer because essential 
accessories were not supported with win10 drivers.  A few months ago 
a better device was offered that interfaces with USB and runs under 
win10, so I bought a new i5 win10.  I will be offering my M-Audio 
Delta44 and emu-0202 for sale (as-is).  New device is called UADC4 
which replaces using a soundcard in receive.


Haven't done the changeover as I had many other challenges for my 
time that were higher priority.  May get to the installation of sw in 
the new machine and to the cut-over soon.  I will be able to run my 
ham programs without Internet as I have GPS time, but its capable if 
I need communication for any of those programs (reporting or 
upgrading).  My K3, KX3, etc firmware updates, for example, or FT8 
and WSPR reporting sites.


I have another i5 for e-mail and normal internet use.  I also use it 
for running prop-log sites in parallel with the ham computer (less 
dialog window clutter).


73, Ed - KL7UW
  http://www.kl7uw.com
Dubus-NA Business mail:
  dubus...@gmail.com 


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[Elecraft] Silent power supply for a K3s

[Mark Murray via Elecraft]

Peter,

Check out the high amperage 13,8 volt power supplies offered by Samlex
America at the following link, and in particular their 100-amp -plus
(continuous) supplies where the fans do not activate for low draws.  You had
mentioned something about price not being so important.  These ain't cheap.
73 de Mark .w2or.

https://www.samlexamerica.com/products/ProductsList.aspx?cid=S3

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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Fred Jensen]

You might try a VM.  I also have some ultra-legacy things that I still 
want to run.  One, a satellite ephemeris generator, is written in DOS 
3.1 FORTRAN.  I installed Virtual Box and loaded DOS into a VM, program 
runs fine.  Another will run in Windows up to XP but not beyond, so a 
second VM runs XP for it.  I also have a Linux VM in there.


Virtual Box was free when I got it, I heard somewhere that it may not be 
free now, but there are several others out there too.


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

On 6/9/2019 10:28 AM, Gwen Patton wrote:

Mark,
My concern is legacy programs that may misbehave under Win10. I have some
pretty old programs that weren't written with Win10 in mind because it
didn't exist yet. I'm certain I'll have to upgrade eventually and bite the
bullet, but until then it's a balancing act. But to be fair, some of those
legacy programs aren't as important now as they once were, so I may be
hanging onto stuff I don't need to be concerned with. I'll have to go
through the thing and figure out what I need, what I want, and what will
still work. Eventually. It's not my #1 priority.

I also may have to update the machine at the same time, and there's no
sense updating my OS if I'm just going to have to upgrade the hardware. Any
new machine I get will likely come with Win10 on it already, so I might as
well do a careful software migration to a new box than update the OS on the
old box that'll just get set aside. It doesn't owe me anything -- I got
this machine 7 years ago.

73,
Gwen, NG3P




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[Elecraft] [K2] Follow-up for serial data I/O issue

[inventor61 .]

Thanks for the several on and off list replies to the dilemma I was seeing.
The problem turned out to be an edge case failure of the USB serial
converter.

It works fine when DE9 pins 2&3 are strapped (hard loopback) but it doesn't
work with the radio.

Changing to a real UART port solved this issue immediately.

NOW ... the original issue can be addressed!

->  The K2  auto-info meta command is *not* sticky.

It does not 'stay' across radio power cycles.
I had hoped this command would be written into the NV memory chip.

Not likely at this stage that Elecraft would issue an updated MCU that did
this.
I guess I could ask!   ;-)

Steve KZ1X
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Re: [Elecraft] K3 Gold Pins

[Grant Youngman]

My #2091 did not have them..   But even if the radio you want to buy doesn’t 
have them, they are not difficult to install, or Elecraft will do it for you.

Grant NQ5T
K3 #2091 KX3 #8342

> On Jun 9, 2019, at 2:37 PM, hawley, charles j jr  
> wrote:
> 
> Mine had them at #4580.
> 
> Chuck KE9UW
> c-haw...@illinois.edu
> 
> Sent from my iPad
> 
>> On Jun 9, 2019, at 1:17 PM, mike stokes  wrote:
>> 
>> I am looking at picking up another K3.  Does anyone know what SN# Elecraft
>> started using the gold plated pins ?  The owner has no idea.
>> 
>> Thanks in advance.
>> 
>> -- 

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Re: [Elecraft] K3 Gold Pins

[Mark Musick]

Hi Mike,
The gold pins were started around serial #4000 to 4100. I got this from one of 
the Elecraft techs some years ago when I had K3 serial # 3505 in for upgrades. 
I think it was in 2015.

Hope to see you at the Indianapolis hamfest.

73,
Mark, WB9CIF

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of mike stokes
Sent: Sunday, June 9, 2019 18:18
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Gold Pins

I am looking at picking up another K3.  Does anyone know what SN# Elecraft 
started using the gold plated pins ?  The owner has no idea.

Thanks in advance.

--
Mike Stokes
KK9V
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[Elecraft] Power supply

[Ken Roberson via Elecraft]

Hello all,
Been a ham for a few years and  I would take a little 

transformer hum over the noisy switching power supply fans any-day.
my 2 cents

Thanks 73 Ken K5DNL
Amateur Radio |K5DNL| 630M Amp for sale | Scopematch info | 630 Meter Power Amp 
| 630M station | Scopematch | 630M Remote tuner | Remote tuner | 630 Meters | 
630M Amplifier | 630 Meter Antenna

| 
| 
| 
|  |  |

 |

 |
| 
|  | 
Amateur Radio |K5DNL| 630M Amp for sale | Scopematch info | 630 Meter Po...

Amateur Radio web site, 630M Station , 630 Meters, 630M Vertical antenna, 630 
Meter Power Amp
 |

 |

 |





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Re: [Elecraft] K3 Gold Pins

[hawley, charles j jr]

Mine had them at #4580.

Chuck KE9UW
c-haw...@illinois.edu

Sent from my iPad

> On Jun 9, 2019, at 1:17 PM, mike stokes  wrote:
> 
> I am looking at picking up another K3.  Does anyone know what SN# Elecraft
> started using the gold plated pins ?  The owner has no idea.
> 
> Thanks in advance.
> 
> -- 
> Mike Stokes
> KK9V
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[Elecraft] K3 Gold Pins

[mike stokes]

I am looking at picking up another K3.  Does anyone know what SN# Elecraft
started using the gold plated pins ?  The owner has no idea.

Thanks in advance.

-- 
Mike Stokes
KK9V
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[Elecraft] Silent power supply for a K3s

[w7hd.rh]

I use a Pyramid PS-36KX, which is a linear 35 amp supply.  It costs 
about $155 on Amazon.


Universal Compact Bench Power Supply - 32 Amp Linear Regulated Home Lab 
Benchtop AC-to-DC 12V Converter w/ 12-15V DC 115V AC 600 Watt Input, 
Amperage Gauge Display, Adjustable Voltage - Pyramid PS36KX


--
Ron W7HD - NAQCC#7587 OMISS#9898 KX3#6966 LinuxUser#415320
Editor OVARC newsletter

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[Elecraft] [K2] looking for method to get K2 to send serial output via KIO2 without prompt

[inventor61 .]

Ingo

I agree, that would be ideal.

The problem, of course, is that if the MCU never gets the TTL equivalent of
the ASCII request, it won't respond.

Hence the issue.

What I had hoped to find out is if there's any keyboard or other sequence
that would cause the K2 to send data autonomously ... again, without any
data prompt.

This ability would allow me to show that the TX data side of the setup was
in fact operational.

I have since that message used an oscilloscope to see that the ASCII RS-232
data **is** getting level-translated and DOES appear on the correct pin of
the main MCU, revision 2.04 firmware.

I swapped out the v2.04 MCU for an earlier revision chip I had in the
junque drawer..

This older chip may or may not have had the same problem it's been
years since I upgraded to the 2.04 firmware so I do not recall ... and
since both MCUs exhibit the same lack-of-response to any inbound serial
command, I suspect I need a new MCU, not the Maxim chip.

Steve KZ1X
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Re: [Elecraft] Silent power supply for a K3s

[Bob McGraw K4TAX]

I'm using an Astron SS-30M with very satisfactory results. 

73
Bob, K4TAX


Sent from my iPhone

> On Jun 9, 2019, at 9:52 AM, Peter Dougherty  wrote:
> 
> Hi all,
> I would like to find a power supply to power the K3s that is completely
> silent. I've owned an Astron RS-35M, which was great until it started
> buzzing like crazy. I swapped that out for a Samlex SEC-1235M, and did the
> fan mod to keep the fan on constantly at low speed. The problem here is that
> when I'm running FT8 or RTTY for more than about a half hour, the fan goes
> into high speed and stays there for an hour or more, long after the rig and
> amp's fans have shut off. And because it's a tiny fan moving a lot of air,
> it's incredibly loud.
> 
> I'm looking for an RF-clean power supply (either linear or switching) that
> can deliver 25A continuously without requiring a cooling fan of any kind.
> All it's running is the K3s/P3 and a couple of boxes with less than 1A draw
> each. The front panel meter on the Samlex is showing a tad over 20A when
> transmitting 100W in FT8/RTTY. Any suggestions? Within reason, cost isn't a
> major issue.
> 
> 
> -
> 73 and Good DX
> Peter, W2IRT
> 
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Re: [Elecraft] Silent power supply for a K3s

[Gary Johnson]

I've installed modern, silent fans in nearly every piece of equipment  I 
own, including my Samlex 1235. They're not expensive and come in all 
standard sizes. Can't hear my PC or power supply fans at all from a few 
feet away. Look for Nanoxia Deep Silence fans. (No, I'm not retrofitting 
my Elecraft gear...)


https://www.amazon.com/gp/product/B00CHW8L1Y/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8=1

Gary NA6O

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[Elecraft] [OT] RS-35M noise

[inventor61 .]

Peter

I now have the prototypes completed of a composite material cover to
replace Astron 35A size power supply covers.

This solves the acoustic noise problem.

The new cover looks terrific and is a 1:1 swap with the old one.

I went through *exactly* the same problem you describe, and then buying the
same replacement supply, then modifying it, ad nauseum, before fixing the
original issue.

I expect to be able to produce these (it's done on a CNC machine) in the
coming weeks.
I have several requests already.

I do not yet know the cost but it won't be outrageous.
Would this interest you?  It has certainly interested others!

73 Steve KZ1X
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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[W2xj]

That’s why I use VM ware on my MAC. I run various OSs going back to DOS and a 
few Linux distros. I can run anything written in the last 40 years. 

Sent from my iPad

> On Jun 9, 2019, at 1:28 PM, Gwen Patton  wrote:
> 
> Mark,
> My concern is legacy programs that may misbehave under Win10. I have some
> pretty old programs that weren't written with Win10 in mind because it
> didn't exist yet. I'm certain I'll have to upgrade eventually and bite the
> bullet, but until then it's a balancing act. But to be fair, some of those
> legacy programs aren't as important now as they once were, so I may be
> hanging onto stuff I don't need to be concerned with. I'll have to go
> through the thing and figure out what I need, what I want, and what will
> still work. Eventually. It's not my #1 priority.
> 
> I also may have to update the machine at the same time, and there's no
> sense updating my OS if I'm just going to have to upgrade the hardware. Any
> new machine I get will likely come with Win10 on it already, so I might as
> well do a careful software migration to a new box than update the OS on the
> old box that'll just get set aside. It doesn't owe me anything -- I got
> this machine 7 years ago.
> 
> 73,
> Gwen, NG3P
> 
>> On Sun, Jun 9, 2019 at 12:32 PM Mark Musick  wrote:
>> 
>> Gwen,
>> I have the SDRPlay, Win4K3Suite and Windows 10.
>> The issue you had with the PX3 will not occur with the P3. Yes, you have
>> IQ output on the PX3, but the P3 is the IF output.
>> For the P3 just move the switch on the back of the P3 to enable the P3 IF
>> output, connect it to the SDRPlay, connect the SDRPlay via the USB cable to
>> your PC and Win4K3Suite automatically recognizes the SDRPlay and the
>> spectrum display works right away. No hassles. Yes, you can connect the
>> SDRPlay directly to the IF out on the K3, but why would you do that and
>> loose the use of the P3?
>> As to moving to Windows 10, I don't understand all the hullabaloo. You
>> have to move to it sometime. So, why not do it sooner rather than later.
>> Especially, when it is free. It is my understanding, if I'm wrong someone
>> please correct me, but you will now have to pay to upgrade.
>> For me the upgrade from Windows 7 to Windows 10 has been the least painful
>> of all the OS moves. Yes, you have to get use to things being in different
>> places and accessing things differently, but you've got to do that whenever
>> you move to a new OS. Thus my statement do it now rater than later. There
> 

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[Elecraft] K1 -- Anyone want one?

[Rob Follett]

I have a K1, SN 111, original owner.  Works fine….

Anyone want to buy it?

Rob — KT7L
r1foll...@gmail.com
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Re: [Elecraft] [K2] looking for method to get K2 to send serial output via KIO2 without prompt

[Don Wilhelm]

Steve,

If the problem is that you just don't want to change out the MAX1406, 
there are 2 unused TX/RX sections in the implementation in the KIO2.
You just need to cut the traces to the in and out pins used and wire to 
another pair of pins.


OTOH, just replacing the MAX1406 may be just as easy.

73,
Don W3FPR

On 6/9/2019 12:11 PM, inventor61 . wrote:

My K2 #771 has a KIO2 that has no serial data output.

This appears to be due to a problem ... in the other direction.

I can see my inbound ASCII commands (e.g., FA;) at pin 6 of U1 on the KIO2
board.

However, the MAX1406 shows only rail at the corresponding TTL side.

I presume the MAX1406 has popped ...


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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Gwen Patton]

Mark,
My concern is legacy programs that may misbehave under Win10. I have some
pretty old programs that weren't written with Win10 in mind because it
didn't exist yet. I'm certain I'll have to upgrade eventually and bite the
bullet, but until then it's a balancing act. But to be fair, some of those
legacy programs aren't as important now as they once were, so I may be
hanging onto stuff I don't need to be concerned with. I'll have to go
through the thing and figure out what I need, what I want, and what will
still work. Eventually. It's not my #1 priority.

I also may have to update the machine at the same time, and there's no
sense updating my OS if I'm just going to have to upgrade the hardware. Any
new machine I get will likely come with Win10 on it already, so I might as
well do a careful software migration to a new box than update the OS on the
old box that'll just get set aside. It doesn't owe me anything -- I got
this machine 7 years ago.

73,
Gwen, NG3P

On Sun, Jun 9, 2019 at 12:32 PM Mark Musick  wrote:

> Gwen,
> I have the SDRPlay, Win4K3Suite and Windows 10.
> The issue you had with the PX3 will not occur with the P3. Yes, you have
> IQ output on the PX3, but the P3 is the IF output.
> For the P3 just move the switch on the back of the P3 to enable the P3 IF
> output, connect it to the SDRPlay, connect the SDRPlay via the USB cable to
> your PC and Win4K3Suite automatically recognizes the SDRPlay and the
> spectrum display works right away. No hassles. Yes, you can connect the
> SDRPlay directly to the IF out on the K3, but why would you do that and
> loose the use of the P3?
> As to moving to Windows 10, I don't understand all the hullabaloo. You
> have to move to it sometime. So, why not do it sooner rather than later.
> Especially, when it is free. It is my understanding, if I'm wrong someone
> please correct me, but you will now have to pay to upgrade.
> For me the upgrade from Windows 7 to Windows 10 has been the least painful
> of all the OS moves. Yes, you have to get use to things being in different
> places and accessing things differently, but you've got to do that whenever
> you move to a new OS. Thus my statement do it now rater than later. There
> are also new features in Windows 10 that are not in Windows 7 that I think
> makes it worth it.
>
> 73,
> Mark, WB9CIF
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> On Behalf Of Gwen Patton
> Sent: Sunday, June 9, 2019 13:40
> To: Elecraft 
> Subject: Re: [Elecraft] K3S - Win4K3Suite - SDRPlay
>
> That's essentially what I did, but with KX3/PX3. I have a lovely 3.5mm to
> 2.5mm cable running from the PX3 IQ output to a spare mike in jack on my
> PC. I had to do some weird jiggery-pokery with default sound devices to get
> it to work because Win4K3Suite uses some of the same (or related) code
> that's also in WSJT-X and other code derived from it, that doesn't play
> nicely with Windows 7 64-bit. None of those programs will "see" my correct
> microphone list, though other unrelated programs DO. Those programs only
> see a pair of old entries that haven't been on my machine in years. I have
> to trick them to see the devices I want, through setting default devices
> and using VB-Audio's Voicemeeter virtual mixer program.
>
> But when I DO get every tab A in the right slot B, I can set Win4K3Suite
> to look to that spare mike jack for its spectrum scope source. Works great!
>
> I've asked (begged) the authors of the various programs to PLEASE do
> something about their operation with Windows 7, but I only get shrugs and
> sometimes rude demands that I simply "upgrade to Windows 10, that works".
> Seeing the *correct* list of enumerated input device drivers should NOT be
> something I have to upgrade my operating system to get, when I only get the
> problem with a very small number of specialized programs.  *sigh...*
>
> 73,
> Gwen, NG3P
>
> On Sun, Jun 9, 2019 at 9:25 AM Don Wilhelm  wrote:
>
> > Rich,
> >
> > There is no need to bypass the P3, just connect the SDRPlay to the P3
> > IF output.
> >
> > The P3 IF output is a replication of the K3S IF output.
> >
> > 73,
> > Don W3FPR
> >
> > On 6/9/2019 7:04 AM, Richard Thorne wrote:
> > > I'd like to try Win4K3Suite with an SDRplay receiver.  I've been
> > > looking for a block diagram showing how the SDRPlay is connected to
> > > the K3S or
> > P3.
> > >
> > > I understand it's a just a matter of connecting the output of the P3
> > > I.F. to the SDRPlay.
> > >
> > > Can the P3 be bypassed and use the I.F. output directly from the K3S?
> > __
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> > list: http://www.qsl.net/donate.html Message delivered to
> > ard...@gmail.com
>
>
>
> --
>
> -+-+-+-+-
> Jenny 

Re: [Elecraft] KPA500 and KAT500 incompatible frequency interface

[W2xj]

Friends don’t let friends use Kenwood. ;-(

Sent from my iPad

> On Jun 9, 2019, at 11:59 AM, Andy Durbin  wrote:
> 
> I have known about this for a long time but, once I decided to design and 
> build my own KAT500/KPA500 controller, I lost interest in the issue.   Here 
> is the situation:
> 
> A KPA500 can be connected to a TS-590 COM port.  If configured correctly the 
> KPA500 will "poll" the TS-590 once per second with IF;FA;FB;.   TS-590 
> responds with the values of IF, FA, and FB and KPA500 firmware is smart 
> enough to derive the TX band regardless of which VFO is being used as the TX 
> VFO.
> 
> The KAT500 with firmware 1.34 or later will receive a Kenwood format FA word 
> and will use it to select, not only the tuning solution, but also the 
> appropriate antenna.  KAT500 only follows VFO A.  It cannot track VFO B and 
> does not know which VFO is being used for TX.
> 
> 
> I was asked to help another op who, like me, uses TS-590, KAT500, and KPA500. 
>  He actually wanted details of my controller but I'm not ready to release 
> anything yet.   He had his KPA500 following TS-590 band but the KAT500 only 
> had RF frequency detection.   He was sometimes faulting the KPA500 after a 
> band change because the KAT500 had not switched to the required antenna.  I 
> told him that it should be possible to make a "Y" cable that kept the 
> TS-590<>KPA500 connection unchanged but which also fed the TS-590 responses 
> to the KAT500.  I sent him a draft cable drawing.
> 
> He reported he had built the cable but the KAT500 did not do any antenna 
> selection when KPA500 and TS-590 changed bands.   After a few emails 
> exchanged I decided I had to build and test the configuration myself.  It 
> worked as I had expected with KPA500 and KAT500 both following TS-590 band 
> selection when VFO A was the TX VFO.   He eventually worked out what he had 
> mis-configured and now has the interface working.
> 
> Now for the point of this post -
> 
> Why does Elecraft provide KPA500 firmware that is smart enough to derive TX 
> frequency regardless of VFO selection but KAT500 will only respond to VFO A 
> frequency?   Would it not be reasonable to update KAT500 firmware, copying 
> KPA500 code if necessary, so it too will derive TX frequency regardless of 
> VFO usage?
> 
> I hope Elecraft will consider this to be a useful enhancement that will make 
> it easier to integrate KPA500 and KAT500 with Kenwood rigs.
> 
> 73,
> Andy, k3wyc
> 
> 
> 
> 
> 
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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Mark Musick]

Gwen,
I have the SDRPlay, Win4K3Suite and Windows 10.
The issue you had with the PX3 will not occur with the P3. Yes, you have IQ 
output on the PX3, but the P3 is the IF output.
For the P3 just move the switch on the back of the P3 to enable the P3 IF 
output, connect it to the SDRPlay, connect the SDRPlay via the USB cable to 
your PC and Win4K3Suite automatically recognizes the SDRPlay and the spectrum 
display works right away. No hassles. Yes, you can connect the SDRPlay directly 
to the IF out on the K3, but why would you do that and loose the use of the P3?
As to moving to Windows 10, I don't understand all the hullabaloo. You have to 
move to it sometime. So, why not do it sooner rather than later. Especially, 
when it is free. It is my understanding, if I'm wrong someone please correct 
me, but you will now have to pay to upgrade.
For me the upgrade from Windows 7 to Windows 10 has been the least painful of 
all the OS moves. Yes, you have to get use to things being in different places 
and accessing things differently, but you've got to do that whenever you move 
to a new OS. Thus my statement do it now rater than later. There are also new 
features in Windows 10 that are not in Windows 7 that I think makes it worth it.

73,
Mark, WB9CIF 

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Gwen Patton
Sent: Sunday, June 9, 2019 13:40
To: Elecraft 
Subject: Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

That's essentially what I did, but with KX3/PX3. I have a lovely 3.5mm to 2.5mm 
cable running from the PX3 IQ output to a spare mike in jack on my PC. I had to 
do some weird jiggery-pokery with default sound devices to get it to work 
because Win4K3Suite uses some of the same (or related) code that's also in 
WSJT-X and other code derived from it, that doesn't play nicely with Windows 7 
64-bit. None of those programs will "see" my correct microphone list, though 
other unrelated programs DO. Those programs only see a pair of old entries that 
haven't been on my machine in years. I have to trick them to see the devices I 
want, through setting default devices and using VB-Audio's Voicemeeter virtual 
mixer program.

But when I DO get every tab A in the right slot B, I can set Win4K3Suite to 
look to that spare mike jack for its spectrum scope source. Works great!

I've asked (begged) the authors of the various programs to PLEASE do something 
about their operation with Windows 7, but I only get shrugs and sometimes rude 
demands that I simply "upgrade to Windows 10, that works".
Seeing the *correct* list of enumerated input device drivers should NOT be 
something I have to upgrade my operating system to get, when I only get the 
problem with a very small number of specialized programs.  *sigh...*

73,
Gwen, NG3P

On Sun, Jun 9, 2019 at 9:25 AM Don Wilhelm  wrote:

> Rich,
>
> There is no need to bypass the P3, just connect the SDRPlay to the P3 
> IF output.
>
> The P3 IF output is a replication of the K3S IF output.
>
> 73,
> Don W3FPR
>
> On 6/9/2019 7:04 AM, Richard Thorne wrote:
> > I'd like to try Win4K3Suite with an SDRplay receiver.  I've been 
> > looking for a block diagram showing how the SDRPlay is connected to 
> > the K3S or
> P3.
> >
> > I understand it's a just a matter of connecting the output of the P3 
> > I.F. to the SDRPlay.
> >
> > Can the P3 be bypassed and use the I.F. output directly from the K3S?
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> ard...@gmail.com



-- 

-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
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Re: [Elecraft] [K2] looking for method to get K2 to send serial output via KIO2 without prompt

[Ingo Meyer, DK3RED]

Hello Steve,



It would be great if I could see if it worked "the other way" in other
words, if the K2 could somehow be made to send at least something out the
TX port without being prompted.

As you can see, because the KIO2 appears to not be able to send the
received data to the main MCU, I can't get the MCU to speak.


It should be possible, because the terminal program can i.e. ask for the frequency and the 
K2 will answer via KIO2.



73/72 de Ingo, DK3RED - Don't forget: the fun is the power!
www.qrp4fun.de - dk3...@qrp4fun.de
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Re: [Elecraft] Silent power supply for a K3s

[Nate Bargmann]

I have an RM-50M at present.  To cut a lot of the audible hum I have it
setting on some plastic rings that fell out of a light fixture (d'oh!)
and it is thus supported on the bottom plate the transformer mounts to
rather than the feet of the supply.  As I have the supply under the
desk, I just reached over with my foot and by pressing on the top cover
I can cut the audible level considerably more.  I may have to
investigate a fix for this.

73, Nate, N0NB

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Web: http://www.n0nb.us  GPG key: D55A8819  GitHub: N0NB
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Re: [Elecraft] Silent power supply for a K3s

[Nate Bargmann]

Whatever you do, don't take the path I did:

https://www.worldwidedx.com/threads/megawatt-vs-chinese-imitation-30-amp-switching-power-supply-comparison.182976/page-7#post-578238

73, Nate, N0NB

-- 

"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Web: http://www.n0nb.us  GPG key: D55A8819  GitHub: N0NB
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[Elecraft] [K2] looking for method to get K2 to send serial output via KIO2 without prompt

[inventor61 .]

My K2 #771 has a KIO2 that has no serial data output.

This appears to be due to a problem ... in the other direction.

I can see my inbound ASCII commands (e.g., FA;) at pin 6 of U1 on the KIO2
board.

However, the MAX1406 shows only rail at the corresponding TTL side.

I presume the MAX1406 has popped ...

It would be great if I could see if it worked "the other way" in other
words, if the K2 could somehow be made to send at least something out the
TX port without being prompted.

As you can see, because the KIO2 appears to not be able to send the
received data to the main MCU, I can't get the MCU to speak.

All other radio features operate perfectly.  #771 will be 20 years old this
December.

Any ideas?  Other than the obvious 'replace the MAX chip and see what
happens.'

Steve KZ1X
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Re: [Elecraft] Silent power supply for a K3s

[Bayard Coolidge, N1HO via Elecraft]

 I've been running an Astron RS-35A for several years now, fortunately 
withoutany buzzing. However, I use it to feed a WMR PG40S, which keeps a large 
(105Ah)AGM SLA battery charged, and that feeds a RigRunner. I adjusted the 
RS-35A to14.1 V on the RigRunner (on receive), and it dips to 13.5 or so on 
transmitwhen running the K3 at 100W out.
As others have mentioned, it is a case of using large wire - #10 or #8 - in the 
shortestlengths possible, and the heavier-rated APPs throughout.
There are numerous articles out on the web and in the archives of this mailing 
list aboutamendments to Astron power supplies and depending on the age of 
yours, you may needto investigate what the root cause of the buzzing is, be it 
simply loose fastening hardwareor perhaps a filter capacitor that's well past 
its prime.
HTH,
Brandy, N1HO 
On Sunday, June 9, 2019, 10:54:23 AM EDT, Peter Dougherty  
wrote:  
 
 Hi all,
I would like to find a power supply to power the K3s that is completely
silent. I've owned an Astron RS-35M, which was great until it started
buzzing like crazy.   
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[Elecraft] KPA500 and KAT500 incompatible frequency interface

[Andy Durbin]

I have known about this for a long time but, once I decided to design and build 
my own KAT500/KPA500 controller, I lost interest in the issue.   Here is the 
situation:

A KPA500 can be connected to a TS-590 COM port.  If configured correctly the 
KPA500 will "poll" the TS-590 once per second with IF;FA;FB;.   TS-590 responds 
with the values of IF, FA, and FB and KPA500 firmware is smart enough to derive 
the TX band regardless of which VFO is being used as the TX VFO.

The KAT500 with firmware 1.34 or later will receive a Kenwood format FA word 
and will use it to select, not only the tuning solution, but also the 
appropriate antenna.  KAT500 only follows VFO A.  It cannot track VFO B and 
does not know which VFO is being used for TX.


I was asked to help another op who, like me, uses TS-590, KAT500, and KPA500.  
He actually wanted details of my controller but I'm not ready to release 
anything yet.   He had his KPA500 following TS-590 band but the KAT500 only had 
RF frequency detection.   He was sometimes faulting the KPA500 after a band 
change because the KAT500 had not switched to the required antenna.  I told him 
that it should be possible to make a "Y" cable that kept the TS-590<>KPA500 
connection unchanged but which also fed the TS-590 responses to the KAT500.  I 
sent him a draft cable drawing.

He reported he had built the cable but the KAT500 did not do any antenna 
selection when KPA500 and TS-590 changed bands.   After a few emails exchanged 
I decided I had to build and test the configuration myself.  It worked as I had 
expected with KPA500 and KAT500 both following TS-590 band selection when VFO A 
was the TX VFO.   He eventually worked out what he had mis-configured and now 
has the interface working.

Now for the point of this post -

Why does Elecraft provide KPA500 firmware that is smart enough to derive TX 
frequency regardless of VFO selection but KAT500 will only respond to VFO A 
frequency?   Would it not be reasonable to update KAT500 firmware, copying 
KPA500 code if necessary, so it too will derive TX frequency regardless of VFO 
usage?

I hope Elecraft will consider this to be a useful enhancement that will make it 
easier to integrate KPA500 and KAT500 with Kenwood rigs.

73,
Andy, k3wyc





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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Barry]

I would go with Win10. Everything I had running over win7 runs nicely 
over win 10. And, win10 seemed run to faster. I did my free upgrade when 
it was free and haven't looked back since.


The big issue I see is learning where win10 puts things and the new 
format. The setup is not much different, but getting there is. The 
differences seemed to have caused more heartburn than other issues. 
However, win10 will support far more things than other operating 
systems, both long and short term. And if you go with what win10 and 
your app.exe want, the set is is seriously easy for installs. The only 
thing hams are going need to learn is where/how to access device 
manager. It is device manager where you make your com port settings and 
changes. All else should be a snap.


If you have a problem with Microsoft, just do not get an account, skip 
this in the set up. You will still get your updates. Setting up a Linux 
machine and VMs is just too much work!



73,
Barry
K3NDM

-- Original Message --
From: "Dave Cole (NK7Z)" 
To: elecraft@mailman.qth.net
Sent: 6/9/2019 10:14:55 AM
Subject: Re: [Elecraft] K3S - Win4K3Suite - SDRPlay


Gwen,

I too am on Windows 7 for my Amateur Radio software, and see the same thing, 
but, I also understand why authors won't support W7 anymore, it is a dead OS, 
and even the vendor for it is no longer supporting it.

I have one windows box for Amateur radio, and the other computer I use for day 
to day things is a Linux box.

I am considering making a clean W7 install there on a VM, and just keeping an 
image of it once W7 goes no update.

That way, if/when my W7 install gets compromised, I can just replace the soiled 
image with the good image.

I am still thinking about if I just want to go W10, and be done with supporting 
a dead OS, that will probably have a ton of exploits within a year of MS 
ceasing support.

I will probably go with 10, as that seems a simpler path, and one the vendors 
will support.  Remember, after W7 goes no support from MS, most of the authors 
will forget W7 exists, while most of the hackers will fall in lust with it.

73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL Asst. Director, NW Division, Technical Resource

On 6/9/19 6:39 AM, Gwen Patton wrote:

That's essentially what I did, but with KX3/PX3. I have a lovely 3.5mm to
2.5mm cable running from the PX3 IQ output to a spare mike in jack on my
PC. I had to do some weird jiggery-pokery with default sound devices to get
it to work because Win4K3Suite uses some of the same (or related) code
that's also in WSJT-X and other code derived from it, that doesn't play
nicely with Windows 7 64-bit. None of those programs will "see" my correct
microphone list, though other unrelated programs DO. Those programs only
see a pair of old entries that haven't been on my machine in years. I have
to trick them to see the devices I want, through setting default devices
and using VB-Audio's Voicemeeter virtual mixer program.

But when I DO get every tab A in the right slot B, I can set Win4K3Suite to
look to that spare mike jack for its spectrum scope source. Works great!

I've asked (begged) the authors of the various programs to PLEASE do
something about their operation with Windows 7, but I only get shrugs and
sometimes rude demands that I simply "upgrade to Windows 10, that works".
Seeing the *correct* list of enumerated input device drivers should NOT be
something I have to upgrade my operating system to get, when I only get the
problem with a very small number of specialized programs.  *sigh...*

73,
Gwen, NG3P

On Sun, Jun 9, 2019 at 9:25 AM Don Wilhelm  wrote:


Rich,

There is no need to bypass the P3, just connect the SDRPlay to the P3 IF
output.

The P3 IF output is a replication of the K3S IF output.

73,
Don W3FPR

On 6/9/2019 7:04 AM, Richard Thorne wrote:

I'd like to try Win4K3Suite with an SDRplay receiver.  I've been looking
for a block diagram showing how the SDRPlay is connected to the K3S or

P3.


I understand it's a just a matter of connecting the output of the P3
I.F. to the SDRPlay.

Can the P3 be bypassed and use the I.F. output directly from the K3S?

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Re: [Elecraft] Silent power supply for a K3s

[Dave Cole (NK7Z)]

I found that there is a terminal block inside most Astron Power 
Supplies, that sometimes gets mounted on a painted surface.


I always check all Astron supplies I buy, new or used, to insure the 
paint has been removed under the ground connection of the internal 
terminal block.  In about 50% of the supplies I have seen over the 
years, the TB has been mounted on a painted surface.


73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL Asst. Director, NW Division, Technical Resource

On 6/9/19 7:52 AM, Peter Dougherty wrote:

Hi all,
I would like to find a power supply to power the K3s that is completely
silent. I've owned an Astron RS-35M, which was great until it started
buzzing like crazy. I swapped that out for a Samlex SEC-1235M, and did the
fan mod to keep the fan on constantly at low speed. The problem here is that
when I'm running FT8 or RTTY for more than about a half hour, the fan goes
into high speed and stays there for an hour or more, long after the rig and
amp's fans have shut off. And because it's a tiny fan moving a lot of air,
it's incredibly loud.

I'm looking for an RF-clean power supply (either linear or switching) that
can deliver 25A continuously without requiring a cooling fan of any kind.
All it's running is the K3s/P3 and a couple of boxes with less than 1A draw
each. The front panel meter on the Samlex is showing a tad over 20A when
transmitting 100W in FT8/RTTY. Any suggestions? Within reason, cost isn't a
major issue.


-
73 and Good DX
Peter, W2IRT

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Re: [Elecraft] K4: superhet vs. direct sampling

[WILLIE BABER]

In my experience the value of high-level blocking and low phase noise is in the 
ability to hear very weak signals next to  strong ones.  When I first got into 
So2r years ago, I discovered an entire layer of very weak signals when I 
switched to usingTenTec Omni V and Omni VI; this was related directly to lower 
phase noise in so2r where the other radio was not a TenTec.  Also, high level 
blocking allows you to hear those weak ones in S & P that you would otherwise 
roll right over especially when the band is full of strong signals. If you are 
not into cw contesting, and in so2r in particular, then what I just said 
doesn't matter and lots of radios become good radios. I have used nothing in 
so2r better than 2 x k3, with Omni VI, Orion and Tentec Eagle almost as good.  
After those, there is Kenwood ts590s.

The thing is, you cannot notice the signals that you are not hearing if you 
have two radios that perform equally poor, and especially with respect to phase 
noise.

73, will, wj9b

CWops #1085
CWA Advisor levels II and III
http://cwops.org/


On Tue, 6/4/19, Wayne Burdick  wrote:

 Subject: [Elecraft] K4: superhet vs. direct sampling
 To: "Elecraft Reflector" 
 Date: Tuesday, June 4, 2019, 8:18 PM
 
 The superhet module buys a lot of
 BDR improvement. But also -- a subtlety I've failed to
 mention so far -- the superhet module is intended to
 somewhat improve 2 kHz IMDDR3 *and* make this figure more
 repeatable. 
 
 Q: Say
 what?
 
 A: As Rob Sherwood
 noted many times before finally immortalizing this point in
 his must-read footnotes, A-to-D converters sharing the same
 part number are not all created equal. The long-time
 previous occupant of his Top Spot benefitted from a
 never-corroborated monotonicity in its ADC's LSBs. An
 act of god. The product of a very good day at the silicon
 foundry when, serendipitously, all the bunny suits were
 defect-free, and no one was exhaling molecules of grain
 alcohol or other substances from the night before.
 
 That said, most ops can get by
 without the extra BDR and IMDDR3, because they're not
 situated in the RF equivalent of the Gulf Stream. Hence the
 different K4 models. 
 
 73,
 Wayne
 N6KR
 
 
 >
 On Jun 4, 2019, at 5:10 PM, Lyle Johnson 
 wrote:
 > 
 > Mark,
 > 
 > The "20 dB
 lower than a K3" figure is an estimate for 100 kHz
 Blocking Dynamic Range rather than the 2 kHz Narrow Spaced
 Dynamic Range.
 > 
 >
 The K3 is listed at 140 to 150 dB (depending on model,
 synthesizer, etc) on Sherwood's Receiver Test Data
 page.  The K4 series without the "HD" option are
 estimated to be in the 120 to 130 dB range, typical of other
 direct sampling SDR products (Flex, Apache, Icom, ...).
 > 
 > 73,
 > 
 > Lyle KK7P
 > 
 > On 6/4/19 4:00 PM,
 mark roz via Elecraft wrote:
 >> Before
 putting my money up front for the first run of K4D I need to
 know what is the dynamic range
 >> of
 the K4D RX at 2kHz spacing. K3 is 105 dB and K4D? If it is
 20dB lower than K3 than it would be 85dB-correct?
 
 
 
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Re: [Elecraft] Silent power supply for a K3s

[Leroy Buller]

This is an issue that I have also, but have chosen to ignore.  I have the
samlex, astron ss30 and a rm30.   The Quiet one is the rm 30.  You might
try to tighten the bolts on the transformer.  That helped mine, but no fan.

One issue is keeping the power cord short to keep from getting a voltage
drop.  You also have to use the right gauge of wire and 45 amp power pole
connectors.   So, the power supply has to sit close to the rig.   I have a
cord of 24 inches.  I have very little voltage drop and the K3 runs better
at 13.7 than 11.8v.

So, I have learned to ignore the fans on ft8, and I wear headphones for the
other modes.

Your mileage may vary, but if it has a fan you will get noise.  The AL 82
also is noisy but that's life.

Lee K0WA

On Sun, Jun 9, 2019, 9:53 AM Peter Dougherty  wrote:

> Hi all,
> I would like to find a power supply to power the K3s that is completely
> silent. I've owned an Astron RS-35M, which was great until it started
> buzzing like crazy. I swapped that out for a Samlex SEC-1235M, and did the
> fan mod to keep the fan on constantly at low speed. The problem here is
> that
> when I'm running FT8 or RTTY for more than about a half hour, the fan goes
> into high speed and stays there for an hour or more, long after the rig and
> amp's fans have shut off. And because it's a tiny fan moving a lot of air,
> it's incredibly loud.
>
> I'm looking for an RF-clean power supply (either linear or switching) that
> can deliver 25A continuously without requiring a cooling fan of any kind.
> All it's running is the K3s/P3 and a couple of boxes with less than 1A draw
> each. The front panel meter on the Samlex is showing a tad over 20A when
> transmitting 100W in FT8/RTTY. Any suggestions? Within reason, cost isn't a
> major issue.
>
>
> -
> 73 and Good DX
> Peter, W2IRT
>
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[Elecraft] Silent power supply for a K3s

[Peter Dougherty]

Hi all,
I would like to find a power supply to power the K3s that is completely
silent. I've owned an Astron RS-35M, which was great until it started
buzzing like crazy. I swapped that out for a Samlex SEC-1235M, and did the
fan mod to keep the fan on constantly at low speed. The problem here is that
when I'm running FT8 or RTTY for more than about a half hour, the fan goes
into high speed and stays there for an hour or more, long after the rig and
amp's fans have shut off. And because it's a tiny fan moving a lot of air,
it's incredibly loud.

I'm looking for an RF-clean power supply (either linear or switching) that
can deliver 25A continuously without requiring a cooling fan of any kind.
All it's running is the K3s/P3 and a couple of boxes with less than 1A draw
each. The front panel meter on the Samlex is showing a tad over 20A when
transmitting 100W in FT8/RTTY. Any suggestions? Within reason, cost isn't a
major issue.


-
73 and Good DX
Peter, W2IRT

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[Elecraft] K4: DX Spots Displayed on PanAdapter

[Richard Thorne]

I looked at the K4 at HamCom on Friday.  Very nice.

Unfortunately the demo was not running for some unforeseen reason 
(murphy I'm sure).


The rep there said there would be an API for 3rd party software. Will 
this make it possible to display DX Spots from logging programs like 
DXLab?  If that's possible will a mouse plugged into the USB port of the 
K4 allow one to click on the spot and have the K4 go to the correct 
frequency and mode?


Rich - N5ZC


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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Dave Cole (NK7Z)]

Gwen,

I too am on Windows 7 for my Amateur Radio software, and see the same 
thing, but, I also understand why authors won't support W7 anymore, it 
is a dead OS, and even the vendor for it is no longer supporting it.


I have one windows box for Amateur radio, and the other computer I use 
for day to day things is a Linux box.


I am considering making a clean W7 install there on a VM, and just 
keeping an image of it once W7 goes no update.


That way, if/when my W7 install gets compromised, I can just replace the 
soiled image with the good image.


I am still thinking about if I just want to go W10, and be done with 
supporting a dead OS, that will probably have a ton of exploits within a 
year of MS ceasing support.


I will probably go with 10, as that seems a simpler path, and one the 
vendors will support.  Remember, after W7 goes no support from MS, most 
of the authors will forget W7 exists, while most of the hackers will 
fall in lust with it.


73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL Asst. Director, NW Division, Technical Resource

On 6/9/19 6:39 AM, Gwen Patton wrote:

That's essentially what I did, but with KX3/PX3. I have a lovely 3.5mm to
2.5mm cable running from the PX3 IQ output to a spare mike in jack on my
PC. I had to do some weird jiggery-pokery with default sound devices to get
it to work because Win4K3Suite uses some of the same (or related) code
that's also in WSJT-X and other code derived from it, that doesn't play
nicely with Windows 7 64-bit. None of those programs will "see" my correct
microphone list, though other unrelated programs DO. Those programs only
see a pair of old entries that haven't been on my machine in years. I have
to trick them to see the devices I want, through setting default devices
and using VB-Audio's Voicemeeter virtual mixer program.

But when I DO get every tab A in the right slot B, I can set Win4K3Suite to
look to that spare mike jack for its spectrum scope source. Works great!

I've asked (begged) the authors of the various programs to PLEASE do
something about their operation with Windows 7, but I only get shrugs and
sometimes rude demands that I simply "upgrade to Windows 10, that works".
Seeing the *correct* list of enumerated input device drivers should NOT be
something I have to upgrade my operating system to get, when I only get the
problem with a very small number of specialized programs.  *sigh...*

73,
Gwen, NG3P

On Sun, Jun 9, 2019 at 9:25 AM Don Wilhelm  wrote:


Rich,

There is no need to bypass the P3, just connect the SDRPlay to the P3 IF
output.

The P3 IF output is a replication of the K3S IF output.

73,
Don W3FPR

On 6/9/2019 7:04 AM, Richard Thorne wrote:

I'd like to try Win4K3Suite with an SDRplay receiver.  I've been looking
for a block diagram showing how the SDRPlay is connected to the K3S or

P3.


I understand it's a just a matter of connecting the output of the P3
I.F. to the SDRPlay.

Can the P3 be bypassed and use the I.F. output directly from the K3S?

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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Paul Gacek via Elecraft]

Gwen

You might not like it but from Microsoft’s web site W7 goes end of life Jan 
2020 (i.e. 6 months from now) after which no security patches will be made 
available.

https://www.microsoft.com/en-us/windowsforbusiness/end-of-windows-7-support

A patched OS is really a good thing to have and you really might want to bite 
the bullet……

All this probably explains why you get shrugs and requests to upgrade.

Paul
W6PNG/M0SNA
www.nomadic.com

> On Jun 9, 2019, at 2:39 PM, Gwen Patton  wrote:
> 
> That's essentially what I did, but with KX3/PX3. I have a lovely 3.5mm to
> 2.5mm cable running from the PX3 IQ output to a spare mike in jack on my
> PC. I had to do some weird jiggery-pokery with default sound devices to get
> it to work because Win4K3Suite uses some of the same (or related) code
> that's also in WSJT-X and other code derived from it, that doesn't play
> nicely with Windows 7 64-bit. None of those programs will "see" my correct
> microphone list, though other unrelated programs DO. Those programs only
> see a pair of old entries that haven't been on my machine in years. I have
> to trick them to see the devices I want, through setting default devices
> and using VB-Audio's Voicemeeter virtual mixer program.
> 
> But when I DO get every tab A in the right slot B, I can set Win4K3Suite to
> look to that spare mike jack for its spectrum scope source. Works great!
> 
> I've asked (begged) the authors of the various programs to PLEASE do
> something about their operation with Windows 7, but I only get shrugs and
> sometimes rude demands that I simply "upgrade to Windows 10, that works".
> Seeing the *correct* list of enumerated input device drivers should NOT be
> something I have to upgrade my operating system to get, when I only get the
> problem with a very small number of specialized programs.  *sigh...*
> 
> 73,
> Gwen, NG3P
> 
> On Sun, Jun 9, 2019 at 9:25 AM Don Wilhelm  > wrote:
> 
>> Rich,
>> 
>> There is no need to bypass the P3, just connect the SDRPlay to the P3 IF
>> output.
>> 
>> The P3 IF output is a replication of the K3S IF output.
>> 
>> 73,
>> Don W3FPR
>> 
>> On 6/9/2019 7:04 AM, Richard Thorne wrote:
>>> I'd like to try Win4K3Suite with an SDRplay receiver.  I've been looking
>>> for a block diagram showing how the SDRPlay is connected to the K3S or
>> P3.
>>> 
>>> I understand it's a just a matter of connecting the output of the P3
>>> I.F. to the SDRPlay.
>>> 
>>> Can the P3 be bypassed and use the I.F. output directly from the K3S?
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> 
> 
> -- 
> 
> -+-+-+-+-
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> http://quarktime.net 
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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Gwen Patton]

That's essentially what I did, but with KX3/PX3. I have a lovely 3.5mm to
2.5mm cable running from the PX3 IQ output to a spare mike in jack on my
PC. I had to do some weird jiggery-pokery with default sound devices to get
it to work because Win4K3Suite uses some of the same (or related) code
that's also in WSJT-X and other code derived from it, that doesn't play
nicely with Windows 7 64-bit. None of those programs will "see" my correct
microphone list, though other unrelated programs DO. Those programs only
see a pair of old entries that haven't been on my machine in years. I have
to trick them to see the devices I want, through setting default devices
and using VB-Audio's Voicemeeter virtual mixer program.

But when I DO get every tab A in the right slot B, I can set Win4K3Suite to
look to that spare mike jack for its spectrum scope source. Works great!

I've asked (begged) the authors of the various programs to PLEASE do
something about their operation with Windows 7, but I only get shrugs and
sometimes rude demands that I simply "upgrade to Windows 10, that works".
Seeing the *correct* list of enumerated input device drivers should NOT be
something I have to upgrade my operating system to get, when I only get the
problem with a very small number of specialized programs.  *sigh...*

73,
Gwen, NG3P

On Sun, Jun 9, 2019 at 9:25 AM Don Wilhelm  wrote:

> Rich,
>
> There is no need to bypass the P3, just connect the SDRPlay to the P3 IF
> output.
>
> The P3 IF output is a replication of the K3S IF output.
>
> 73,
> Don W3FPR
>
> On 6/9/2019 7:04 AM, Richard Thorne wrote:
> > I'd like to try Win4K3Suite with an SDRplay receiver.  I've been looking
> > for a block diagram showing how the SDRPlay is connected to the K3S or
> P3.
> >
> > I understand it's a just a matter of connecting the output of the P3
> > I.F. to the SDRPlay.
> >
> > Can the P3 be bypassed and use the I.F. output directly from the K3S?
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Re: [Elecraft] K3S - Win4K3Suite - SDRPlay

[Don Wilhelm]

Rich,

There is no need to bypass the P3, just connect the SDRPlay to the P3 IF 
output.


The P3 IF output is a replication of the K3S IF output.

73,
Don W3FPR

On 6/9/2019 7:04 AM, Richard Thorne wrote:
I'd like to try Win4K3Suite with an SDRplay receiver.  I've been looking 
for a block diagram showing how the SDRPlay is connected to the K3S or P3.


I understand it's a just a matter of connecting the output of the P3 
I.F. to the SDRPlay.


Can the P3 be bypassed and use the I.F. output directly from the K3S?

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Re: [Elecraft] KX3 and the Sigmalink USB

[Neil Zampella]

FWIW... you don't need a signalink to connect the KX3 for digital modes.

All you need is the KXUSB cable for CAT control (& PTT), and 3.5 cables
for the MIC and PHONO jackts to the Line out/speakers and line in on the
computer.

Very simple, and no having to worry about switching about jumpers or
adding capacitors.

Neil, KN3ILZ

On 6/8/2019 1:47 PM, Terry Basom wrote:

The SLMODKX3 jumper module for using the Signalink USB with a KX3 or KX2,
has a DC blocking capacitor built in.

Can anyone tell me where it is in the circuit and a value? It eliminates
turning off the mike bias in the menu when using the Signalink USB. I am
just using jumpers and would like to put in the capacitor to eliminate
having to turn off mike bias and having to remember to turn it back on.



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[Elecraft] K3S - Win4K3Suite - SDRPlay

[Richard Thorne]

I'd like to try Win4K3Suite with an SDRplay receiver.  I've been looking 
for a block diagram showing how the SDRPlay is connected to the K3S or P3.


I understand it's a just a matter of connecting the output of the P3 
I.F. to the SDRPlay.


Can the P3 be bypassed and use the I.F. output directly from the K3S?

Thanks in advance.

Rich - N5ZC
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[Elecraft] help

[H. K.]

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