Re: [Elecraft] SK Station Disposition

[Walter Underwood]

What kind of person would put a list of states in almost, but not quite, 
reverse alphabetical order?

wunder
K6WRU

> On Apr 24, 2022, at 7:19 PM, Edward Mccann  wrote:
> 
> To Ed’s point:
> 
> “Some states recognize memorandums of personal property as legally binding, 
> but there are 20 states that don’t categorize them as legitimate legal 
> documents, including West Virginia, Vermont, Texas, Tennessee, Pennsylvania, 
> Rhode Island, Ohio, Oklahoma, New Hampshire, North Carolina, New York, 
> Mississippi, Kentucky, Maryland, Louisiana, Illinois, Alabama, Georgia, and 
> Connecticut.”
> 
> 
> Ed McCann
> AG6CX
> 
> Sent from my iPhone
> 
>> On Apr 24, 2022, at 7:08 PM, Edward Dauer  wrote:
>> 
>> Related to the thread on helping other hams' families deal with their
>> stations after they go SK, there is an idea that I think I mentioned on the
>> Reflector a couple of years ago, but which may be worth repeating given
>> that the general subject has come up again.  I have to begin but saying
>> that, though a lawyer myself, I should not be understood as offering legal
>> advice with the following note.  I mention it only as something anyone
>> interested might want to pursue with their own counsel.
>> 
>> Wills are complex instruments and, by themselves, sometimes cumbersome in
>> dealing with personal property -- like amateur radio equipment -- that may
>> change in shape and value over time.  Amending a will can sometimes be a
>> big, by which I mean costly, deal.  In many states, if not most, there is
>> another way.  It's called various things in various places, though where I
>> live it's called a Memorandum Disposition of Personal Property.  It's a
>> document that anyone can write, amend, tear up, whatever, at any time
>> without going through the trouble of amending a will or a trust.  If the
>> Will correctly refers to it, the document becomes an effective way of
>> directing the disposition of tangible personal property.  Using the proper
>> form at the outset I can describe what I want to have happen to my station,
>> or any piece of it, in a simple document that alone can write.  If the
>> equipment list changes, and I want to change where the rest goes, I can
>> change the Memorandum.  No need to amend the Will or a testamentary trust.
>> 
>> I should stop there, and say only that it's not widely known but t's worth
>> looking into.
>> 
>> Ted, KN1CBR
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Re: [Elecraft] KPA1500 fan sequencing

[Mark Musick]

The simple answer John is "Yes". Your KPA1500 cooling fans are running as 
intended.

73,
Mark, WB9CIF
KPA1500 Serial #112

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of JOHN SILVA via Elecraft
Sent: Sunday, April 24, 2022 21:35
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA1500 fan sequencing

Is it normal for only the middle fan to run on the KPA1500 in Level 1? expected 
all three fans to run, and simply increase speed as needed to efficiently (and 
quietly) provide the necessary cooling. All three fans do run in Levels 2-5.

Is this normal?


73,
John, N3AM
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[Elecraft] Elecraft CW Net Report

[kevin]

Good Evening,

   Propagation was not good.  There was a steady roar on both bands 
with fast QSB chopping things up.  Signal reports varied from ESP to S8, 
sometimes from the same op.


  Weather conditions were more in line with the date.  My forecast has 
only a few more days of snow, I think.  The ferns are unrolling rapidly.



  On 14050.5 kHz at 2200z:

K6XK - Roy - IA

AB9V - Mike - IN

K4WJ - John - FL


  On 7047.5 kHz at 2330z:

K0DTJ - Brian - CA

WM5F - Dwight - ID

K6PJV - Dale - CA


   Until next week 73,

  Kevin.  KD5ONS


-



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Re: [Elecraft] SK Station Disposition

[Edward Mccann]

To Ed’s point:

“Some states recognize memorandums of personal property as legally binding, but 
there are 20 states that don’t categorize them as legitimate legal documents, 
including West Virginia, Vermont, Texas, Tennessee, Pennsylvania, Rhode Island, 
Ohio, Oklahoma, New Hampshire, North Carolina, New York, Mississippi, Kentucky, 
Maryland, Louisiana, Illinois, Alabama, Georgia, and Connecticut.”


Ed McCann
AG6CX

Sent from my iPhone

> On Apr 24, 2022, at 7:08 PM, Edward Dauer  wrote:
> 
> Related to the thread on helping other hams' families deal with their
> stations after they go SK, there is an idea that I think I mentioned on the
> Reflector a couple of years ago, but which may be worth repeating given
> that the general subject has come up again.  I have to begin but saying
> that, though a lawyer myself, I should not be understood as offering legal
> advice with the following note.  I mention it only as something anyone
> interested might want to pursue with their own counsel.
> 
> Wills are complex instruments and, by themselves, sometimes cumbersome in
> dealing with personal property -- like amateur radio equipment -- that may
> change in shape and value over time.  Amending a will can sometimes be a
> big, by which I mean costly, deal.  In many states, if not most, there is
> another way.  It's called various things in various places, though where I
> live it's called a Memorandum Disposition of Personal Property.  It's a
> document that anyone can write, amend, tear up, whatever, at any time
> without going through the trouble of amending a will or a trust.  If the
> Will correctly refers to it, the document becomes an effective way of
> directing the disposition of tangible personal property.  Using the proper
> form at the outset I can describe what I want to have happen to my station,
> or any piece of it, in a simple document that alone can write.  If the
> equipment list changes, and I want to change where the rest goes, I can
> change the Memorandum.  No need to amend the Will or a testamentary trust.
> 
> I should stop there, and say only that it's not widely known but t's worth
> looking into.
> 
> Ted, KN1CBR
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[Elecraft] SK Station Disposition

[Edward Dauer]

Related to the thread on helping other hams' families deal with their
stations after they go SK, there is an idea that I think I mentioned on the
Reflector a couple of years ago, but which may be worth repeating given
that the general subject has come up again.  I have to begin but saying
that, though a lawyer myself, I should not be understood as offering legal
advice with the following note.  I mention it only as something anyone
interested might want to pursue with their own counsel.

Wills are complex instruments and, by themselves, sometimes cumbersome in
dealing with personal property -- like amateur radio equipment -- that may
change in shape and value over time.  Amending a will can sometimes be a
big, by which I mean costly, deal.  In many states, if not most, there is
another way.  It's called various things in various places, though where I
live it's called a Memorandum Disposition of Personal Property.  It's a
document that anyone can write, amend, tear up, whatever, at any time
without going through the trouble of amending a will or a trust.  If the
Will correctly refers to it, the document becomes an effective way of
directing the disposition of tangible personal property.  Using the proper
form at the outset I can describe what I want to have happen to my station,
or any piece of it, in a simple document that alone can write.  If the
equipment list changes, and I want to change where the rest goes, I can
change the Memorandum.  No need to amend the Will or a testamentary trust.

I should stop there, and say only that it's not widely known but t's worth
looking into.

Ted, KN1CBR
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Re: [Elecraft] OT: Grease your DELETE Key

[Wes]

You might contact IOTA Engineering. They don't seem to make exactly what you 
want but they do make emergency lighting inverters packaged with batteries.  
Perhaps they can sell you the guts of one of these.  I know them for their 
battery chargers, which are first rate and electrically quiet.


Disclaimer:  I moonlighted for the founders of this company at another small 
start-up about 50 years ago.  It is a local Tucson company but I have zero 
association with them now.


Wes  N7WS


On 4/24/2022 6:23 PM, ws6x@gmail.com wrote:

OK, I'll make it somewhat Elecraft related... For FD this year I will be
using a KX3 in a 1A Battery effort. To power the KX3 and most of the station
equipment, I will be using a solar-charged battery system that is a
permanent part of my home station.
   
Begin OT:

However, for some of the station accessories I need to provide a small 120
VAC supply. I am looking for a ~500 Watt pure sine wave inverter which is rf
quiet. I have already tried a GOWISE Power inverter because it was billed as
being rf quiet. Unfortunately, it was a terrific hash generator!
So my question: Does anyone in this group have experience with quiet
inverters? Can anyone make an experience-based recommendation?
Tnx es 73,
Jim - WS6X


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[Elecraft] K4D - KPA500 Fault Question + wish

[Bob McGraw]

Based on my experience with my KPA500 and an exchange with Jack, W6FB, I 
have found no need to run the Fan Speed at any value other than NOR as 
defined via the MENU.   {See my comments regarding efficiency.}


I'm aware that "others" have measured and tracked and computed results 
to an extensive numerical value.  OK so be it.  It is your amp.  I just 
choose to run mine in the "quiet" mode of NORMAL {and not suck in a load 
of dust by it running all the time} and allow the control system in the 
amp to apply the fan and fan speed as so dictated by the software.


73

Bob, K4TAX


On 4/24/2022 6:48 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 15
Date: Sun, 24 Apr 2022 15:40:30 -0500
From: Jack Brindle
To: email
Cc:"elecraft@mailman.qth.net"  
Subject: Re: [Elecraft] K4D - KPA500 Fault Question + wish
Message-ID:
Content-Type: text/plain;   charset=utf-8

If there was no recent ?HI TEMP? fault in the log, then it was not the KPA500 
that caused the display on the K4.
In that case, ask the K4 folks what may have happened.

I have never seen a HI TEMP fault with my KPA500s in normal operation, although 
I am sure others have.
I have seen it when testing?

Again, the FAN CTL is the minimum fan speed. If the fan goes above that speed, 
it will certainly slow down when
the PA cools. The amp works just fine at the default value of 0, only turning 
on the fan when it is needed.

Now, my question for everyone reading - when is it that you feel the need to 
set the fan speed above 0?

73,
Jack, W6FB


--
IF ONE EXPECTS COMPUTERS AND TECHNOLOGY TO SOLVE THEIR PROBLEMS,
ONE DOESN'T UNDERSTAND COMPUTERS AND TECHNOLOGY
AND ONE DOESN'T UNDERSTAND THEIR PROBLEMS."


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[Elecraft] KPA1500 fan sequencing

[JOHN SILVA via Elecraft]

Is it normal for only the middle fan to run on the KPA1500 in Level 1? expected 
all three fans to run, and simply increase speed as needed to efficiently (and 
quietly) provide the necessary cooling. All three fans do run in Levels 2-5.

Is this normal?


73,
John, N3AM
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[Elecraft] KPA500 Fault Question + wish

[Bob McGraw]

A year or so ago I embarked on a project to determine the efficiency and 
the "sweet spot" operating parameters of my KPA500.   I drive my KPA500 
with my Elecraft K3S.


Armed with a good 50 ohm dummy load, two watt meters {one on the input 
and one on the output}, and my EXCEL spreadsheet, I measured each band, 
160M - 6M.  I choose power output levels starting at 100 watts and every 
100 watts thereafter up to 500 watts.    Using the KPA500 display as the 
source for volts and amps, the input power was determined and calculated 
against the measured output power.  Thus the efficiency was easily 
calculated.   No consideration for the actual drive power was in the 
measured output power.


And at the same time, measuring the input power and output power and a 
little math, the gain of the amplifier was determined at various power 
levels and bands.


Yes indeed, I found that running at reduced power saves nothing! The amp 
is more efficient in the 350 to 450 watt range and thus dissipates less 
heat.  And from band to band and power level,  it is easy to see that 
the efficiency changes.


In a quick summary, I found the efficiency runs from a low of 23.4% at 
100 watts on 20M to a high of 70.9% at 500 watts on 80M.   I did not 
exceed 500 watts on any band,  thus any amplifier compression was not 
anticipated.   The power/heat dissipation runs from a high of 400 watts 
at 250 watts output on 20M to a low of 196 watts at 100 watts output on 
80M.  The amplifier average gain varies from 13.95 dB on 20M to 14.59 dB 
on 80M.   To attain these values, the drive power varies from a low of 
3.3 watts on 10M & 15M for 100 watts output to a high of 18.5 watts for 
500 watts on 40M.


It might do well for each KPA500 owner to run power and efficiency 
curves on their amplifiers.   The results are enlightening.


73

Bob, K4TAX


On 4/24/2022 6:48 PM, elecraft-requ...@mailman.qth.net wrote:

Message: 12
Date: Sun, 24 Apr 2022 14:03:55 -0400
From: EMAIL
To: Elecraft K4 Group,
"elecraft@mailman.qth.net"  
Subject: [Elecraft] K4D - KPA500 Fault Question + wish
Message-ID:
Content-Type: text/plain; charset=UTF-8; format=flowed

Yesterday I got a fault message on the K4 screen. It disappeared before
I could see it fully, but I did get "tighten heatsink screws".? The fan
was working as its speed was speeding up and the KPA500 temp saw about
60+C (it may have been higher).? I was running 100 watts PSK31.? The
KPA500 did switch to STBY (I think).

I can not find any record of what the message was.? I can not find
"heatsink screws" referenced in the K4, KPA500 or KPA1500 manuals.? Both
the K4 and KPA500 are factory built.

PSK31 has a longer duty cycle than FT8 and I was running FT8 at higher
power with out the amp temp going above 60C, earlier.? I switched to
barefoot and ran 80W PSK31 without issue.

Question 1) Before I take the KPA500 apart, is this a problem or just
duty cycle?? I would think the KPA500 would be able to handle 100W key
down.

Question 2) I saved the K4 backup and diagnostic logs to USB disk (the
next day).? I could NOT find anything that looked like the error
messages.? I find many messages disappear before I get a chance to read
them.

Wish 1) KPA500 add FAN CTL for both OPER and STBY or set STBY to run at
NOR and OPER to be adjustable.

Wish 2) K4, allow checking date/time for all past error messages.? I may
have had a KPA500 over temp message while long winded on SSB (but only
200W)?

Wish 3) K4, HOLD error messages until "confirmed".? Messages like KPA500
on/off (info) only need to be short time (??), but if away (maybe
confirm).? Either way "this" will be an issue for? the contesters, so
have a way to save for later recall, as in write to USB if one is
installed.? Fn could write to USB disk with time stamp?? OR, are there
documents on how to read the diagnostic logs?


73, steve WB3LGC

I will also send to support if no one has a good idea about the fault.



--
IF ONE EXPECTS COMPUTERS AND TECHNOLOGY TO SOLVE THEIR PROBLEMS,
ONE DOESN'T UNDERSTAND COMPUTERS AND TECHNOLOGY
AND ONE DOESN'T UNDERSTAND THEIR PROBLEMS."


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[Elecraft] OT: Grease your DELETE Key

[ws6x.ars]

OK, I'll make it somewhat Elecraft related... For FD this year I will be
using a KX3 in a 1A Battery effort. To power the KX3 and most of the station
equipment, I will be using a solar-charged battery system that is a
permanent part of my home station. 
  
Begin OT:
However, for some of the station accessories I need to provide a small 120
VAC supply. I am looking for a ~500 Watt pure sine wave inverter which is rf
quiet. I have already tried a GOWISE Power inverter because it was billed as
being rf quiet. Unfortunately, it was a terrific hash generator!
So my question: Does anyone in this group have experience with quiet
inverters? Can anyone make an experience-based recommendation? 
Tnx es 73,
Jim - WS6X

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[Elecraft] 40 meter net, 7.280, 1900Z each Sunday

[Steve Hall]

Both 20 meter and 40 meter nets were having difficulty with propagation.
Definitely short skip on 40.
Thanks to those checking in and relay stations.
WM6P STEVE GA K4D NET CONTROL
W4VFW ROB TN FT991A
W9EJB ED IN K4
WY3T TIM FL K3S
K8NU CARL OH FTDX101D
KG4KP JIM MO K3
W4DML DOUG TN K3
WB9JNZ ERIC IL K3
KB9AVO PAUL IN K4
WB4WCJ PAUL GA HW101
N8SBE DAVE MI K3S
KA0RTM MIKE MN TS590SG
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Re: [Elecraft] K4D - KPA500 Fault Question + wish

[EMAIL]

Jack,

OK, you win.

I went back to fan speed (0) NOR and with FT8 at 400+ watts, the KPA500 
is only "doing" 56C max AND fan speed (2) is maxing also at 56C.  So, 
yes I will run the fan at (0) NOR.


Also, "rest" for NOR is 44C.

73, steve WB3LGC


On 24-Apr-22 05:21 PM, email wrote:

Jack,

Now that you ask.

I have been using the fan at (1) when I run FT8 to "get a head start" 
when I do TX.  I don't NEED to.  I like to see lower TEMP and it 
does.  I have been known to run 400W on FT8, too (FT8 is low signal 
mode not QRP) and I have been trying to get a Dallas station DE on 10m 
digital (in a skip zone).


Thanks for the help.
73, steve WB3LGC


On 4/24/22 16:40, Jack Brindle wrote:
Now, my question for everyone reading - when is it that you feel the 
need to set the fan speed above 0?


73,
Jack, W6FB


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Re: [Elecraft] [Elecraft-K4] K4D - Fault Question + wish

[EMAIL]

OK,

I found the error message...

"ER53, High LPA temperature; check LPA heat sink screws: Temperature at 
10 watt stage exceeded its limit. This could be caused by the screws on 
the bottom cover becoming too lose, by high ambient temperature, or by 
excessive key-down time."


It would be NICE if the messages could be viewed after the fact.  Like 
KPA500 utility.  I originally thought it was a KPA500 issue.  I was 
running 10 watts from the LPA at the time, key down PSK31 in a QSO.  IF, 
I had run a little more power so that the HPA (High Power Amp) was 
coasting then the LPA could coast, too   (aka, better to run 400 
Watts with the KPA500 than 100 Watts... or 50+ watts barefoot)


NOW, I understand what was going on.  Thanks Jack, W6FB

73, Steve WB3LGC


On 24-Apr-22 02:03 PM, Steve WB3LGC wrote:


Yesterday I got a fault message on the K4 screen.  It disappeared 
before I could see it fully, but I did get "tighten heatsink screws".  
The fan was working as its speed was speeding up and the KPA500 temp 
saw about 60+C (it may have been higher).  I was running 100 watts 
PSK31.  The KPA500 did switch to STBY (I think).


I can not find any record of what the message was.  I can not find 
"heatsink screws" referenced in the K4, KPA500 or KPA1500 manuals.  
Both the K4 and KPA500 are factory built.


PSK31 has a longer duty cycle than FT8 and I was running FT8 at higher 
power with out the amp temp going above 60C, earlier.  I switched to 
barefoot and ran 80W PSK31 without issue.


Question 1)Before I take the KPA500 apart, is this a problem or just 
duty cycle?  I would think the KPA500 would be able to handle 100W key 
down.


Question 2) I saved the K4 backup and diagnostic logs to USB disk (the 
next day). I could NOT find anything that looked like the error 
messages.  I find many messages disappear before I get a chance to 
read them.


Wish 1) KPA500 add FAN CTL for both OPER and STBY or set STBY to run 
at NOR and OPER to be adjustable.


Wish 2) K4, allow {EASY} checking date/time for all past error 
messages. I may have had a KPA500 over temp message while long winded 
on SSB (but only 200W)?


Wish 3) K4, HOLD error messages until "confirmed".  Messages like 
KPA500 on/off (info) only need to be short time (??), but if away 
(maybe confirm).  Either way "this" will be an issue for  the 
contesters, so have a way to save for later recall, as in write to USB 
if one is installed.  Fn could write to USB disk with time stamp?  OR, 
are there documents on how to read the diagnostic logs?



73, steve WB3LGC

I will also send to support if no one has a good idea about the fault.


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Re: [Elecraft] K4D - KPA500 Fault Question + wish

[john]

Is there data showing more dissipated heat with lower output in solid state
amplifiers?  I have seen similar posts on the SPE Expert list. The following
KPA1500 post shows much lower efficiency with lower power but not more lost
wattage: I am not an RF amp guru, I am just trying to understand this.
http://mailman.qth.net/pipermail/elecraft/2018-August/259502.html

John KK9A



Jack Brindle W6FB wrote:

Steve;

And, like all amplifiers, the KPA500 has a design point where efficiency is
best. Outside this design point (both high and low),
efficiency will fall off and you will find that the amp will run hotter

73,
Jack, W6FB

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Re: [Elecraft] K2 SN 25xx has very low sensitivity in 20 and 80m bands

[Michael Carter]

Hi Chris,

Does your K2 transmit OK on those bands, i.e. at full power output?

The fact that other bands have normal sensitivity indicates
that the main receiver functional blocks are OK.  The bandpass
filters for 20 and 80 meters have only one component in
common, relay K3, but that relay selects 80/160 meters or separately
20/30 meters by adding additional shunt capacitors for the
lower frequency band in the proper filter section.

I would check your per-band settings to be sure that you
haven't inadvertently selected an antenna port
that isn't connected to the proper antenna for one of those
bands OR that a separate RX ANT is selected when you
have no antenna on that port (presuming you have the
160 meter/RX ANT module installed).

73,
Mike, K8CN
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Re: [Elecraft] K4D - KPA500 Fault Question + wish

[email]

Jack,

Now that you ask.

I have been using the fan at (1) when I run FT8 to "get a head start" 
when I do TX.  I don't NEED to.  I like to see lower TEMP and it does.  
I have been known to run 400W on FT8, too (FT8 is low signal mode not 
QRP) and I have been trying to get a Dallas station DE on 10m digital 
(in a skip zone).


Thanks for the help.
73, steve WB3LGC


On 4/24/22 16:40, Jack Brindle wrote:
Now, my question for everyone reading - when is it that you feel the 
need to set the fan speed above 0?


73,
Jack, W6FB


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[Elecraft] K2 SN 25xx has very low sensitivity in 20 and 80m bands

[Chris]

Hello,

My K2 developed a very weird issue.  The sensitivity is very low in 20 and
80m bands.  It receives but the S-meter reading is much low compared to
other receivers that I compared.  For example, an S9 signal on another good
receiver is barely S1 on K2.  Other bands are fine.

Any advice on where to check first?  Thank you.

DE KM1B Chris
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Re: [Elecraft] K4D - KPA500 Fault Question + wish

[Jack Brindle via Elecraft]

If there was no recent “HI TEMP” fault in the log, then it was not the KPA500 
that caused the display on the K4.
In that case, ask the K4 folks what may have happened.

I have never seen a HI TEMP fault with my KPA500s in normal operation, although 
I am sure others have. 
I have seen it when testing…

Again, the FAN CTL is the minimum fan speed. If the fan goes above that speed, 
it will certainly slow down when
the PA cools. The amp works just fine at the default value of 0, only turning 
on the fan when it is needed.

Now, my question for everyone reading - when is it that you feel the need to 
set the fan speed above 0?

73,
Jack, W6FB


> On Apr 24, 2022, at 2:51 PM, email  wrote:
> 
> 
> 
> On 4/24/22 15:06, Jack Brindle wrote:
>> Steve;
>> 
>> Use the KPA Utility to see the KPA faults. Access is under the Configuration 
>> tab, then click on “Display Fault Table”.
>> You can also save it to a file for view in a text editor, or if we ask for 
>> it, send it to tech support for analysis. 
> Thanks, I knew I had seen the fault table some place.  
> 
> What was there were early learning and adjusting (tuning) an antenna that 
> needed a 4:1 balun to match.
> 
> I will keep the utility on to see if it captures future "issues".
> 
> I DO like and USE the the KAT500 utility as it provides NICE antenna status 
> info like SWR with/without bypass.  
> 
>> The FAN CTL sets the minimum fan speed. It works in both OPER and STBY 
>> modes.  
>> Yes, it just would be nice if putting into standby, that when cooled, it 
>> would quiet down.  Yes, I can do it manually.  
>> 
>> And, like all amplifiers, the KPA500 has a design point where efficiency is 
>> best. Outside this design point (both high and low),
>> efficiency will fall off and you will find that the amp will run hotter. 
>> This is what you may have found. Remember, the PSK modes
>> tend to keep transmission active for very long times, and can really tax an 
>> amplifier. Amazingly, you may be better off running
>> the amp at higher power than yo were using to lower the stress on the PA. I 
>> am sure there are several folks on the reflector who
>> Can explain this very well. Yes, that maybe the extra heat. Thak you.  I 
>> won't pull things apart, just yet...
>> 
>> The amplifier will protect itself (IT DID, nice!) if the PA temperature goes 
>> above 90 degrees Celsius. That is the point where you will see a fault.
>> The fault log actually records the temperature when the fault occurred in 
>> its data field, which is displayed in a hexadecimal value.
>> 
>> Try looking at the fault log to see what happened on the KPA side. If you 
>> have questions, just ask.
>> 
>> 73,
>> Jack, W6FB
>> 
>> Thanks, Steve WB3LGC
>>> On Apr 24, 2022, at 1:03 PM, EMAIL   
>>> wrote:
>>> 
>>> Yesterday I got a fault message on the K4 screen. It disappeared before I 
>>> could see it fully, but I did get "tighten heatsink screws".  The fan was 
>>> working as its speed was speeding up and the KPA500 temp saw about 60+C (it 
>>> may have been higher).  I was running 100 watts PSK31.  The KPA500 did 
>>> switch to STBY (I think).
>>> 
>>> I can not find any record of what the message was.  I can not find 
>>> "heatsink screws" referenced in the K4, KPA500 or KPA1500 manuals.  Both 
>>> the K4 and KPA500 are factory built.
>>> 
>>> PSK31 has a longer duty cycle than FT8 and I was running FT8 at higher 
>>> power with out the amp temp going above 60C, earlier.  I switched to 
>>> barefoot and ran 80W PSK31 without issue.
>>> 
>>> Question 1) Before I take the KPA500 apart, is this a problem or just duty 
>>> cycle?  I would think the KPA500 would be able to handle 100W key down.
>>> 
>>> Question 2) I saved the K4 backup and diagnostic logs to USB disk (the next 
>>> day).  I could NOT find anything that looked like the error messages.  I 
>>> find many messages disappear before I get a chance to read them.
>>> 
>>> Wish 1) KPA500 add FAN CTL for both OPER and STBY or set STBY to run at NOR 
>>> and OPER to be adjustable.
>>> 
>>> Wish 2) K4, allow checking date/time for all past error messages.  I may 
>>> have had a KPA500 over temp message while long winded on SSB (but only 
>>> 200W)?
>>> 
>>> Wish 3) K4, HOLD error messages until "confirmed".  Messages like KPA500 
>>> on/off (info) only need to be short time (??), but if away (maybe confirm). 
>>>  Either way "this" will be an issue for  the contesters, so have a way to 
>>> save for later recall, as in write to USB if one is installed.  Fn could 
>>> write to USB disk with time stamp?  OR, are there documents on how to read 
>>> the diagnostic logs?
>>> 
>>> 
>>> 73, steve WB3LGC
>>> 
>>> I will also send to support if no one has a good idea about the fault.
>>> 
>>> __
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>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft 
>>> 
>>> Help: 

Re: [Elecraft] K4D - KPA500 Fault Question + wish

[email]

On 4/24/22 15:06, Jack Brindle wrote:

Steve;

Use the KPA Utility to see the KPA faults. Access is under the Configuration 
tab, then click on “Display Fault Table”.
You can also save it to a file for view in a text editor, or if we ask for it, 
send it to tech support for analysis.


Thanks, I knew I had seen the fault table some place.

What was there were early learning and adjusting (tuning) an antenna 
that needed a 4:1 balun to match.


I will keep the utility on to see if it captures future "issues".

I DO like and USE the the KAT500 utility as it provides NICE antenna 
status info like SWR with/without bypass.


The FAN CTL sets the minimum fan speed. It works in both OPER and STBY modes.Yes, it just would be nice if putting into standby, that when cooled, 
it would quiet down. Yes, I can do it manually.


And, like all amplifiers, the KPA500 has a design point where efficiency is 
best. Outside this design point (both high and low),
efficiency will fall off and you will find that the amp will run hotter. This 
is what you may have found. Remember, the PSK modes
tend to keep transmission active for very long times, and can really tax an 
amplifier. Amazingly, you may be better off running
the amp at higher power than yo were using to lower the stress on the PA. I am 
sure there are several folks on the reflector who
Can explain this very well.Yes, that maybe the extra heat. Thak you. I won't pull things apart, 
just yet...


The amplifier will protect itself(IT DID, nice!)  if the PA temperature goes 
above 90 degrees Celsius. That is the point where you will see a fault.
The fault log actually records the temperature when the fault occurred in its 
data field, which is displayed in a hexadecimal value.

Try looking at the fault log to see what happened on the KPA side. If you have 
questions, just ask.

73,
Jack, W6FB

Thanks, Steve WB3LGC

On Apr 24, 2022, at 1:03 PM, EMAIL  wrote:

Yesterday I got a fault message on the K4 screen. It disappeared before I could see it 
fully, but I did get "tighten heatsink screws".  The fan was working as its 
speed was speeding up and the KPA500 temp saw about 60+C (it may have been higher).  I 
was running 100 watts PSK31.  The KPA500 did switch to STBY (I think).

I can not find any record of what the message was.  I can not find "heatsink 
screws" referenced in the K4, KPA500 or KPA1500 manuals.  Both the K4 and KPA500 are 
factory built.

PSK31 has a longer duty cycle than FT8 and I was running FT8 at higher power 
with out the amp temp going above 60C, earlier.  I switched to barefoot and ran 
80W PSK31 without issue.

Question 1) Before I take the KPA500 apart, is this a problem or just duty 
cycle?  I would think the KPA500 would be able to handle 100W key down.

Question 2) I saved the K4 backup and diagnostic logs to USB disk (the next 
day).  I could NOT find anything that looked like the error messages.  I find 
many messages disappear before I get a chance to read them.

Wish 1) KPA500 add FAN CTL for both OPER and STBY or set STBY to run at NOR and 
OPER to be adjustable.

Wish 2) K4, allow checking date/time for all past error messages.  I may have 
had a KPA500 over temp message while long winded on SSB (but only 200W)?

Wish 3) K4, HOLD error messages until "confirmed".  Messages like KPA500 on/off (info) 
only need to be short time (??), but if away (maybe confirm).  Either way "this" will be 
an issue for  the contesters, so have a way to save for later recall, as in write to USB if one is 
installed.  Fn could write to USB disk with time stamp?  OR, are there documents on how to read the 
diagnostic logs?


73, steve WB3LGC

I will also send to support if no one has a good idea about the fault.

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Re: [Elecraft] K4D - KPA500 Fault Question + wish

[Jack Brindle via Elecraft]

Steve;

Use the KPA Utility to see the KPA faults. Access is under the Configuration 
tab, then click on “Display Fault Table”.
You can also save it to a file for view in a text editor, or if we ask for it, 
send it to tech support for analysis. 

The FAN CTL sets the minimum fan speed. It works in both OPER and STBY modes.

And, like all amplifiers, the KPA500 has a design point where efficiency is 
best. Outside this design point (both high and low),
efficiency will fall off and you will find that the amp will run hotter. This 
is what you may have found. Remember, the PSK modes
tend to keep transmission active for very long times, and can really tax an 
amplifier. Amazingly, you may be better off running
the amp at higher power than yo were using to lower the stress on the PA. I am 
sure there are several folks on the reflector who
Can explain this very well.

The amplifier will protect itself if the PA temperature goes above 90 degrees 
Celsius. That is the point where you will see a fault.
The fault log actually records the temperature when the fault occurred in its 
data field, which is displayed in a hexadecimal value.

Try looking at the fault log to see what happened on the KPA side. If you have 
questions, just ask.

73,
Jack, W6FB


> On Apr 24, 2022, at 1:03 PM, EMAIL  wrote:
> 
> Yesterday I got a fault message on the K4 screen. It disappeared before I 
> could see it fully, but I did get "tighten heatsink screws".  The fan was 
> working as its speed was speeding up and the KPA500 temp saw about 60+C (it 
> may have been higher).  I was running 100 watts PSK31.  The KPA500 did switch 
> to STBY (I think).
> 
> I can not find any record of what the message was.  I can not find "heatsink 
> screws" referenced in the K4, KPA500 or KPA1500 manuals.  Both the K4 and 
> KPA500 are factory built.
> 
> PSK31 has a longer duty cycle than FT8 and I was running FT8 at higher power 
> with out the amp temp going above 60C, earlier.  I switched to barefoot and 
> ran 80W PSK31 without issue.
> 
> Question 1) Before I take the KPA500 apart, is this a problem or just duty 
> cycle?  I would think the KPA500 would be able to handle 100W key down.
> 
> Question 2) I saved the K4 backup and diagnostic logs to USB disk (the next 
> day).  I could NOT find anything that looked like the error messages.  I find 
> many messages disappear before I get a chance to read them.
> 
> Wish 1) KPA500 add FAN CTL for both OPER and STBY or set STBY to run at NOR 
> and OPER to be adjustable.
> 
> Wish 2) K4, allow checking date/time for all past error messages.  I may have 
> had a KPA500 over temp message while long winded on SSB (but only 200W)?
> 
> Wish 3) K4, HOLD error messages until "confirmed".  Messages like KPA500 
> on/off (info) only need to be short time (??), but if away (maybe confirm).  
> Either way "this" will be an issue for  the contesters, so have a way to save 
> for later recall, as in write to USB if one is installed.  Fn could write to 
> USB disk with time stamp?  OR, are there documents on how to read the 
> diagnostic logs?
> 
> 
> 73, steve WB3LGC
> 
> I will also send to support if no one has a good idea about the fault.
> 
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[Elecraft] K4D - KPA500 Fault Question + wish

[EMAIL]

Yesterday I got a fault message on the K4 screen. It disappeared before 
I could see it fully, but I did get "tighten heatsink screws".  The fan 
was working as its speed was speeding up and the KPA500 temp saw about 
60+C (it may have been higher).  I was running 100 watts PSK31.  The 
KPA500 did switch to STBY (I think).


I can not find any record of what the message was.  I can not find 
"heatsink screws" referenced in the K4, KPA500 or KPA1500 manuals.  Both 
the K4 and KPA500 are factory built.


PSK31 has a longer duty cycle than FT8 and I was running FT8 at higher 
power with out the amp temp going above 60C, earlier.  I switched to 
barefoot and ran 80W PSK31 without issue.


Question 1) Before I take the KPA500 apart, is this a problem or just 
duty cycle?  I would think the KPA500 would be able to handle 100W key 
down.


Question 2) I saved the K4 backup and diagnostic logs to USB disk (the 
next day).  I could NOT find anything that looked like the error 
messages.  I find many messages disappear before I get a chance to read 
them.


Wish 1) KPA500 add FAN CTL for both OPER and STBY or set STBY to run at 
NOR and OPER to be adjustable.


Wish 2) K4, allow checking date/time for all past error messages.  I may 
have had a KPA500 over temp message while long winded on SSB (but only 
200W)?


Wish 3) K4, HOLD error messages until "confirmed".  Messages like KPA500 
on/off (info) only need to be short time (??), but if away (maybe 
confirm).  Either way "this" will be an issue for  the contesters, so 
have a way to save for later recall, as in write to USB if one is 
installed.  Fn could write to USB disk with time stamp?  OR, are there 
documents on how to read the diagnostic logs?



73, steve WB3LGC

I will also send to support if no one has a good idea about the fault.

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[Elecraft] ESTATE SALES

[K9ZTV]

Someone wrote ...

"Neither I nor the club are making anything on this. It's unfortunate, but this 
is the third one of these instances that we've been called upon to do in the 
past year."

Over the last decade or so our club has been involved in the disposition of 
seven silent key estates of varying sizes.  

For one we merely suggested fair market prices to the commercial company 
handling the estate and made the sale known to area amateurs.

For another (a long-time member and former club officer with no immediate 
family) we provided security and assistance during the two-day sale of 
household goods and home showing.  His modest radio station sold quickly to 
local club members.

For a third we arranged for the donation of his equipment to the local American 
Red Cross chapter.

The club charged nothing and received nothing for the above tendered services.

However, the remaining four estates involved stations of substantial size 
requiring considerable time, labor, and risk of injury.  Knowing this, the 
three widows and, in the fourth instance, the ham's parents, stated beforehand 
that the club could keep all such proceeds.

As a result, the club's current treasury stands at $18,000 and would be 
considerably higher had we not recently upgraded our VHF/UHF repeater system.

Clearly, estate sales will be more numerous over the coming years with fewer 
hams available as buyers.  We have discussed the need for, but not yet decided 
upon, a club policy regarding remuneration for such services to those estates 
wishing us to provide the labor while they retain the proceeds.

Community service may be our middle name, but there is a degree of legal 
liability, risk of personal injury, and assumption of fiducial responsibility 
when handling other people's assets.

73,

Kent  K9ZTV
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Re: [Elecraft] Elecraft Service: we hear you

[Steve Hall]

*OK, Steve When is the last time you tried to send in a unit for service.
I am #5 and have been since January. Saying you support the K3 and actually
doing it are two different thin*gs.

Rob

I am sorry you are without your unit.
Regarding your question.  For over 15 years I have been using Elecraft gear
exclusively including K3/K3s/K4/KX3/KAT500/KPA500/KPA1500.  I have never
had to return any of the gear for service.  As far as "support the K3 and
actually doing it"  I don't understand your statement.
All the best and 73, Steve WM6P
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[Elecraft] Fwd: SK Elecraft Station

[Paul Horenstein K2PH via Elecraft]

As I have received a bunch of inquiries since posting the original below 
message, and to lighten up my work a little, here's a more thorough description 
of the equipment:
 
|  Elecraft K3-K

  |  S/N 00208

  |
|  K3/100K

  |  |
|  KAT3

  |  |
|  KXV3

  |  |
|  KBPF3

  |  |
|  KFL3A-2.8K

  |  |
|  KFL3A-400

  |  |
|  KFL3A-6K

  |  |
|  KFL3B-FM

  |  |
|  KFL3A-1.8K

  |  |
|  KTXCO3-1

  |  |
|  KRX3

  |  |
|  KFL3A-2.8K

  |  |
|  PR6

  |  |
|  K144XV-100-K

  |  |
|  KXV3A_UPGR

  |  |


P3 is just a plain ordinary

| ELECRAFT KPA500F | S/N 1710
 |



| ELECRAFT KAT500 | S/N 0881
 |


Prices not yet determined, will post when available
Thanks for the interest
73
Paul K2PH
-Original Message-
From: Paul Horenstein K2PH 
To: elecraft@mailman.qth.net 
Sent: Sat, Apr 23, 2022 7:36 pm
Subject: SK Elecraft Station

As president of our local radio club I am sometimes contacted by the family of 
a member who has become a silent key, to assist with the disposition of his 
equipment.
I was recently contacted and asked to help with a complete K3 station, K3,P3, 
KPA500 & KAT500. There are also some other peripheral devices, power supplies, 
wattmeters, switches and power distribution boxes.The family has asked me to 
act as an intermediary. As such, if you would like any further information as 
to availability, price, options, condition, etc., please email me and I will 
get back to you and, if warranted, put you in touch with the family. Neither I 
nor the club are making anything on this. It's unfortunate, but this is the 
third one of these instances that we've been called upon to do in the past year.
73
Paul K2PHPresident, Crystal Radio Club, Inc.www.crystalradio.club
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Re: [Elecraft] SK Elecraft Station

[Jim Brown]

On 4/23/2022 5:37 PM, Barry Baines via Elecraft wrote:

Thanks for the clarification.  I recognize that dealing with estate matters can 
be a challenge for all concerned and I’m sure the family appreciates your 
willingness to help.


A decade ago, I helped the widow of a neighbor ham dispose of a LOT of 
gear, antennas, coax, test equipment, and a HUGE junkbox (ham-speak for 
a stash of parts to build and repair). It was a LONG process. I began by 
building a spreadsheet of all the gear, antennas, and the major parts. I 
then did the homework of finding the selling price of everything for 
which I could get data. Sites like ebay, eham, manufacturer-specific 
reflectors like this one. He had a LOT of tubes, vacuum caps, power 
amps, power amp parts, etc. I got advice from a member of our club who 
specialized in collecting tubes, from power amp builders.


I did NOT attempt to sell to resellers -- that's giving away part of the 
proceeds of sale that should go to the estate. I spent weeks cleaning 
out and sorting through his workshop. Local hams climbed towers to down 
antennas, then broke down the towers, rolled up coax. Local hams bought 
a lot of stuff. Once that was all done and the big stuff was sold, 
several of us took all the "hamfest" items to several large outdoor 
swap-meets.


A complete listing of the Elecraft gear, including all the modules, 
crystal filters, etc. should produce advice from this reflector of its 
value.


73, Jim K9YC




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