Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-14 Thread Nr4c
Yes!  It's a "computer". 

Sent from my iPhone
...nr4c. bill


> On Oct 13, 2017, at 4:00 PM, Dave Cole (NK7Z)  wrote:
> 
> Respectfully, is that really true?  The K3 needs to be shutdown via the Power 
> switch due to some sort of shutdown procedure, (or internal timings issue), 
> within the radio?
> 
> 73s and thanks,
> Dave
> NK7Z
> http://www.nk7z.net
> 
>> On 10/13/2017 11:52 AM, Bob McGraw K4TAX wrote:
>> I would also comment with Knut, AB2TC, that one must always turn the radio 
>> on and off with the power switch.  This allows the internal workings to 
>> store the data.   If you use a "master station switch" thus just dump the 
>> power supply then the radio may not store the data as required.   I recall 
>> the term "power down imminent" or PDI.
>> Years ago we had "the big switch" which was used to shut the station down.  
>> Today with all of the computerized gadgets, power down in sequence is more 
>> and more of a must do.
>> In another brand of radio to which I am familiar, there is a CPU timing 
>> circuit that assures the CPU is up and running before loading the operating 
>> code.   If this circuit is running too fast, it may cause a partial load and 
>> related error.  This circuit is basically a simple RC network, and with age 
>> the C value decreases thus making the timing circuit run too fast.   i.e.  
>> not enough delay.
>> 73
>> Bob, K4TAX
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Elecraft@mailman.qth.net
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to d...@nk7z.net
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to n...@widomaker.com

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-14 Thread Vic Rosenthal
I suspect that “bad things” can happen if the power drops DURING the process of 
saving. Then you might get partial or invalid information stored. This could be 
why most of the time it is harmless.

Vic 4X6GP 

> On 14 Oct 2017, at 10:12, Clay Autery  wrote:
> 
> Just like any other computer with volatile memory  IF you don't tell the 
> computer you are shutting down, it doesn't know and therefore doesn't have 
> time to save the information to NON-volatile memory.
> 
> __
> Clay Autery, KY5G
> MONTAC Enterprises
> (318) 518-1389
> 
>> On 10/13/2017 3:00 PM, Dave Cole (NK7Z) wrote:
>> Respectfully, is that really true?  The K3 needs to be shutdown via the 
>> Power switch due to some sort of shutdown procedure, (or internal timings 
>> issue), within the radio?
>> 
>> 73s and thanks,
>> Dave
>> NK7Z
>> http://www.nk7z.net
>> 
>>> On 10/13/2017 11:52 AM, Bob McGraw K4TAX wrote:
>>> I would also comment with Knut, AB2TC, that one must always turn the radio 
>>> on and off with the power switch.  This allows the internal workings to 
>>> store the data. If you use a "master station switch" thus just dump the 
>>> power supply then the radio may not store the data as required.   I recall 
>>> the term "power down imminent" or PDI.
>>> 
>>> Years ago we had "the big switch" which was used to shut the station down.  
>>> Today with all of the computerized gadgets, power down in sequence is more 
>>> and more of a must do.
>>> 
>>> In another brand of radio to which I am familiar, there is a CPU timing 
>>> circuit that assures the CPU is up and running before loading the operating 
>>> code.   If this circuit is running too fast, it may cause a partial load 
>>> and related error.  This circuit is basically a simple RC network, and with 
>>> age the C value decreases thus making the timing circuit run too fast. i.e. 
>>>  not enough delay.
>>> 
>>> 73
>>> 
>>> Bob, K4TAX
>> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to k2vco@gmail.com
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-14 Thread Clay Autery
Just like any other computer with volatile memory  IF you don't tell 
the computer you are shutting down, it doesn't know and therefore 
doesn't have time to save the information to NON-volatile memory.


__
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 10/13/2017 3:00 PM, Dave Cole (NK7Z) wrote:
Respectfully, is that really true?  The K3 needs to be shutdown via 
the Power switch due to some sort of shutdown procedure, (or internal 
timings issue), within the radio?


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 10/13/2017 11:52 AM, Bob McGraw K4TAX wrote:
I would also comment with Knut, AB2TC, that one must always turn the 
radio on and off with the power switch.  This allows the internal 
workings to store the data. If you use a "master station switch" thus 
just dump the power supply then the radio may not store the data as 
required.   I recall the term "power down imminent" or PDI.


Years ago we had "the big switch" which was used to shut the station 
down.  Today with all of the computerized gadgets, power down in 
sequence is more and more of a must do.


In another brand of radio to which I am familiar, there is a CPU 
timing circuit that assures the CPU is up and running before loading 
the operating code.   If this circuit is running too fast, it may 
cause a partial load and related error.  This circuit is basically a 
simple RC network, and with age the C value decreases thus making the 
timing circuit run too fast. i.e.  not enough delay.


73

Bob, K4TAX




__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Don Wilhelm

Dave,

If you have *not* been "pulling the plug" to shut down the K3, then it 
may be that it needs a trip back to Watsonville to rezap the bootloader.


But OTOH if you have been turning the power supply off first and not 
using the K3 power button first, try 'doing it properly' over the 
weekend and contact supp...@elecraft.com Monday.


Removing the power from the K3 will not normally do any damage (but it 
can).  In most cases, the thing that happens is that it does not restore 
the band/frequency/mode, etc. that you were last using - or if you made 
menu setting changes, those will not be remembered.
Although it *can* scramble the bootloader, it seldom does - except if 
you are unlucky.


Yes, it is similar to a PC in that regard.

73,
Don W3FPR

On 10/13/2017 4:42 PM, Dave Cole (NK7Z) wrote:
I understand why, I was just not aware the K3 needed to be actually shut 
down explicitly.


I tend to never pull power from anything running anyway, (too many years 
doing PC, and dedicated hardware support in broadcast), but I was 
totally unaware the K3 needed a shutdown sequence...

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Dave Cole (NK7Z)
I understand why, I was just not aware the K3 needed to be actually shut 
down explicitly.


I tend to never pull power from anything running anyway, (too many years 
doing PC, and dedicated hardware support in broadcast), but I was 
totally unaware the K3 needed a shutdown sequence...


In fact my shack desk has a dedicated 12 V power setup, which lives on 
the back of the desk, so I can't get to the switch without reaching 
behind the desk...


What a surprise!  I guess I need to re-read the manuals!  I missed that 
in both manuals!


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 10/13/2017 01:35 PM, Mark E. Musick wrote:

Yes Dave, it is true.
These days with most radios using some sort of microprocessor you should turn 
all brands off, not just Elecraft, using the power switch on the radio, not the 
switch on the power supply. This allows the processor inside the radio to save 
parameters etc. to memory and go through an orderly shutdown before it actually 
shuts power off to the radio. If you shut off the radio by turning it off using 
the power switch on the power supply the processor does not go through its 
orderly shutdown and you can scramble the processors brain. When you turn it on 
again you don't know what state it will power up in. If it powers up correctly, 
you were lucky.
Shut the radio off using its front panel switch first, then shut the power 
supply off.

73,
Mark, WB9CIF

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Cole (NK7Z)
Sent: Friday, October 13, 2017 8:00 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 after turning on doesn't receive or transmit

Respectfully, is that really true?  The K3 needs to be shutdown via the Power 
switch due to some sort of shutdown procedure, (or internal timings issue), 
within the radio?

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 10/13/2017 11:52 AM, Bob McGraw K4TAX wrote:

I would also comment with Knut, AB2TC, that one must always turn the
radio on and off with the power switch.  This allows the internal
workings to store the data.   If you use a "master station switch"
thus just dump the power supply then the radio may not store the data
as required.   I recall the term "power down imminent" or PDI.

Years ago we had "the big switch" which was used to shut the station
down.  Today with all of the computerized gadgets, power down in
sequence is more and more of a must do.

In another brand of radio to which I am familiar, there is a CPU
timing circuit that assures the CPU is up and running before loading
the operating code.   If this circuit is running too fast, it may
cause a partial load and related error.  This circuit is basically a
simple RC network, and with age the C value decreases thus making the
timing circuit run too fast.   i.e.  not enough delay.

73

Bob, K4TAX



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net Please help support this email
list: http://www.qsl.net/donate.html Message delivered to
d...@nk7z.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message 
delivered to markmus...@sbcglobal.net


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Mark E. Musick
Yes Dave, it is true. 
These days with most radios using some sort of microprocessor you should turn 
all brands off, not just Elecraft, using the power switch on the radio, not the 
switch on the power supply. This allows the processor inside the radio to save 
parameters etc. to memory and go through an orderly shutdown before it actually 
shuts power off to the radio. If you shut off the radio by turning it off using 
the power switch on the power supply the processor does not go through its 
orderly shutdown and you can scramble the processors brain. When you turn it on 
again you don't know what state it will power up in. If it powers up correctly, 
you were lucky.
Shut the radio off using its front panel switch first, then shut the power 
supply off.

73,
Mark, WB9CIF  

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Cole (NK7Z)
Sent: Friday, October 13, 2017 8:00 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 after turning on doesn't receive or transmit

Respectfully, is that really true?  The K3 needs to be shutdown via the Power 
switch due to some sort of shutdown procedure, (or internal timings issue), 
within the radio?

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 10/13/2017 11:52 AM, Bob McGraw K4TAX wrote:
> I would also comment with Knut, AB2TC, that one must always turn the 
> radio on and off with the power switch.  This allows the internal 
> workings to store the data.   If you use a "master station switch" 
> thus just dump the power supply then the radio may not store the data 
> as required.   I recall the term "power down imminent" or PDI.
> 
> Years ago we had "the big switch" which was used to shut the station 
> down.  Today with all of the computerized gadgets, power down in 
> sequence is more and more of a must do.
> 
> In another brand of radio to which I am familiar, there is a CPU 
> timing circuit that assures the CPU is up and running before loading 
> the operating code.   If this circuit is running too fast, it may 
> cause a partial load and related error.  This circuit is basically a 
> simple RC network, and with age the C value decreases thus making the 
> timing circuit run too fast.   i.e.  not enough delay.
> 
> 73
> 
> Bob, K4TAX
> 
> 
> 
> __
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft@mailman.qth.net
> 
> This list hosted by: http://www.qsl.net Please help support this email 
> list: http://www.qsl.net/donate.html Message delivered to 
> d...@nk7z.net
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html Message 
delivered to markmus...@sbcglobal.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Dave Cole (NK7Z)

I had no clue that was happening!  Thanks for the info!

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 10/13/2017 01:31 PM, Bob McGraw K4TAX wrote:
 From the Fred Cady manual, page 33, Chapter 3   "Elecraft recommends 
that you DO NOT turn your K3s off by turning off the external power 
supply.  Using the POWER switch allows the K3s to store variables such 
as the current VFO frequencies in EEPROM before shutting down.   This 
might not happen if you turn the power off at the power supply.  You can 
turn the power supply off after the K3s shuts down".


73

Bob, K4TAX


On 10/13/2017 3:22 PM, Ron D'Eau Claire wrote:
Yes! Like most equipment these days, the K3 needs to do an orderly 
shutdown under control of its processor to turn off safely and 
reliably. Like your P.C. you can pull power unexpectedly and it will 
often recover okay when power is reapplied, but you can also get 
corrupted data that forces a firmware reload - perhaps even using the 
forced MCU load procedure in the Owner's manual - as well as 
discovering that it turns on in an unexpected state or that it has 
"forgotten" certain parameters you set when it was last used.


73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Cole (NK7Z)

Sent: Friday, October 13, 2017 1:00 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 after turning on doesn't receive or transmit

Respectfully, is that really true?  The K3 needs to be shutdown via 
the Power switch due to some sort of shutdown procedure, (or internal 
timings issue), within the radio?


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to rmcg...@blomand.net




__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to d...@nk7z.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Dave Cole (NK7Z)

Wow, thanks for the info!

I must have missed that in the manual...  I use the power switch, but I 
had no idea there was a power down sequence for the radio.


Is it an actual power down sequence, like in triggers shutdown code to 
run, or just some timing that has to happen in the right order?


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 10/13/2017 01:22 PM, Ron D'Eau Claire wrote:

Yes! Like most equipment these days, the K3 needs to do an orderly shutdown under control 
of its processor to turn off safely and reliably. Like your P.C. you can pull power 
unexpectedly and it will often recover okay when power is reapplied, but you can also get 
corrupted data that forces a firmware reload - perhaps even using the forced MCU load 
procedure in the Owner's manual - as well as discovering that it turns on in an 
unexpected state or that it has "forgotten" certain parameters you set when it 
was last used.

73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Cole (NK7Z)
Sent: Friday, October 13, 2017 1:00 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 after turning on doesn't receive or transmit

Respectfully, is that really true?  The K3 needs to be shutdown via the Power 
switch due to some sort of shutdown procedure, (or internal timings issue), 
within the radio?

73s and thanks,
Dave
NK7Z
http://www.nk7z.net


__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Bob McGraw K4TAX
From the Fred Cady manual, page 33, Chapter 3   "Elecraft recommends 
that you DO NOT turn your K3s off by turning off the external power 
supply.  Using the POWER switch allows the K3s to store variables such 
as the current VFO frequencies in EEPROM before shutting down.   This 
might not happen if you turn the power off at the power supply.  You can 
turn the power supply off after the K3s shuts down".


73

Bob, K4TAX


On 10/13/2017 3:22 PM, Ron D'Eau Claire wrote:

Yes! Like most equipment these days, the K3 needs to do an orderly shutdown under control 
of its processor to turn off safely and reliably. Like your P.C. you can pull power 
unexpectedly and it will often recover okay when power is reapplied, but you can also get 
corrupted data that forces a firmware reload - perhaps even using the forced MCU load 
procedure in the Owner's manual - as well as discovering that it turns on in an 
unexpected state or that it has "forgotten" certain parameters you set when it 
was last used.

73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Cole (NK7Z)
Sent: Friday, October 13, 2017 1:00 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 after turning on doesn't receive or transmit

Respectfully, is that really true?  The K3 needs to be shutdown via the Power 
switch due to some sort of shutdown procedure, (or internal timings issue), 
within the radio?

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to rmcg...@blomand.net




__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Ron D'Eau Claire
Yes! Like most equipment these days, the K3 needs to do an orderly shutdown 
under control of its processor to turn off safely and reliably. Like your P.C. 
you can pull power unexpectedly and it will often recover okay when power is 
reapplied, but you can also get corrupted data that forces a firmware reload - 
perhaps even using the forced MCU load procedure in the Owner's manual - as 
well as discovering that it turns on in an unexpected state or that it has 
"forgotten" certain parameters you set when it was last used. 

73, Ron AC7AC


-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dave Cole (NK7Z)
Sent: Friday, October 13, 2017 1:00 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 after turning on doesn't receive or transmit

Respectfully, is that really true?  The K3 needs to be shutdown via the Power 
switch due to some sort of shutdown procedure, (or internal timings issue), 
within the radio?

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Dave Cole (NK7Z)
Respectfully, is that really true?  The K3 needs to be shutdown via the 
Power switch due to some sort of shutdown procedure, (or internal 
timings issue), within the radio?


73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 10/13/2017 11:52 AM, Bob McGraw K4TAX wrote:
I would also comment with Knut, AB2TC, that one must always turn the 
radio on and off with the power switch.  This allows the internal 
workings to store the data.   If you use a "master station switch" thus 
just dump the power supply then the radio may not store the data as 
required.   I recall the term "power down imminent" or PDI.


Years ago we had "the big switch" which was used to shut the station 
down.  Today with all of the computerized gadgets, power down in 
sequence is more and more of a must do.


In another brand of radio to which I am familiar, there is a CPU timing 
circuit that assures the CPU is up and running before loading the 
operating code.   If this circuit is running too fast, it may cause a 
partial load and related error.  This circuit is basically a simple RC 
network, and with age the C value decreases thus making the timing 
circuit run too fast.   i.e.  not enough delay.


73

Bob, K4TAX



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to d...@nk7z.net

__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread Bob McGraw K4TAX
I would also comment with Knut, AB2TC, that one must always turn the 
radio on and off with the power switch.  This allows the internal 
workings to store the data.   If you use a "master station switch" thus 
just dump the power supply then the radio may not store the data as 
required.   I recall the term "power down imminent" or PDI.


Years ago we had "the big switch" which was used to shut the station 
down.  Today with all of the computerized gadgets, power down in 
sequence is more and more of a must do.


In another brand of radio to which I am familiar, there is a CPU timing 
circuit that assures the CPU is up and running before loading the 
operating code.   If this circuit is running too fast, it may cause a 
partial load and related error.  This circuit is basically a simple RC 
network, and with age the C value decreases thus making the timing 
circuit run too fast.   i.e.  not enough delay.


73

Bob, K4TAX



__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com

Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread ab2tc
Hi Fred,

I see no-one has responded to you so I will chime in with what I know.

A few more details about what you actually see and hear when you press the
power button would be helpful. What you should see and hear is an almost
immediate relay click and most (all?) LEDs turn on. Fractions of of a second
later the display backlight comes on, then fractions of s second later the
display comes alive and you should hear audio. This machine boots up fast,
thank you, engineers at Elecraft.

If on the other hand, you see "CPU LD" (or something similar) in the
display, the software has decided that something is wrong with the
application software and decides to stay in the bootloader (modern firmware
always wakes up up in the bootloader and decides where to go from there).
That would explain why your only recovery is to reload the firmware.

I am starting to guess now and it's not always a good idea. One explanation
is that there is actually something wrong with the application firmware
(corrupted to some degree). But this seems improbable since you can
consistently recover by reloading it.  I assume you are turning the radio
off by using the power button. Another possible explanation is that the CPU
starts executing before the hardware has come up completely and thus
erroneously concludes that the application firmware is corrupted.

I realize that  none of these ramblings is a direct help to you to recover
from your situation but I am hoping it may trigger others to have an AHA
experience.

BTW, the battery is not essential to the K3 operation. It just powers the
RTC which is not very good anyway. I have plenty of better ways to tell the
time of day.

AB2TC - Knut


Fred-2 wrote
> Hi all,
> 
> I'm a very new user to the K3.  I just recently update the Synthesizer
> board and added the KXV3B and the K144XV options to my K3.  I made all the
> updates in Config to make this work.  Everything works fine.
> 
> The problem I am having is when the radio sits over night and and turn it
> on, it doesn't receive or transmit at all.  The only way I can get it to
> work is to start the K3 Utility and download and reinstall all firmware.
> Once that is done, everything is working fine until I turn it off at night
> and turn it on the next day.
> 
> I noticed there is a battery on the main board.  Does it sound like it is
> dead and needs to be replaced?
> 
> I have not had a chance to check this.
> 
> Thanks for your help!  Please let me know if you have any questions.
> 
> -- 
> Thanks,
> 
> Fred
> 





--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com


Re: [Elecraft] K3 after turning on doesn't receive or transmit

2017-10-13 Thread ab2tc
Hi Fred,

I see no-one has responded to you so I will chime in with what I know.

A few more details about what you actually see and hear when you press the
power button would be helpful. What you should see and hear is an almost
immediate relay click and most (all?) LEDs turn on. Fractions of of a second
later the display backlight comes on, then fractions of s second later the
display comes alive and you should hear audio. This machine boots up fast,
thank you, engineers at Elecraft.

If on the other hand, you see "CPU LD" (or something similar) in the
display, the software has decided that something is wrong with the
application software and decides to stay in the bootloader (modern firmware
always wakes up up in the bootloader and decides where to go from there).
That would explain why your only recovery is to reload the firmware.

I am starting to guess now and it's not always a good idea. One explanation
is that there is actually something wrong with the application firmware
(corrupted to some degree). But this seems improbable since you can
consistently recover by reloading it.  I assume you are turning the radio
off by using the power button. Another possible explanation is that the CPU
starts executing before the hardware has come up completely and thus
erroneously concludes that the application firmware is corrupted.

I realize that  none of these ramblings is a direct help to you to recover
from your situation but I am hoping it may trigger others to have an AHA
experience.

BTW, the battery is not essential to the K3 operation. It just powers the
RTC which is not very good anyway. I have plenty of better ways to tell the
time of day.

AB2TC - Knut


Fred-2 wrote
> Hi all,
> 
> I'm a very new user to the K3.  I just recently update the Synthesizer
> board and added the KXV3B and the K144XV options to my K3.  I made all the
> updates in Config to make this work.  Everything works fine.
> 
> The problem I am having is when the radio sits over night and and turn it
> on, it doesn't receive or transmit at all.  The only way I can get it to
> work is to start the K3 Utility and download and reinstall all firmware.
> Once that is done, everything is working fine until I turn it off at night
> and turn it on the next day.
> 
> I noticed there is a battery on the main board.  Does it sound like it is
> dead and needs to be replaced?
> 
> I have not had a chance to check this.
> 
> Thanks for your help!  Please let me know if you have any questions.
> 
> -- 
> Thanks,
> 
> Fred
> 





--
Sent from: http://elecraft.365791.n2.nabble.com/
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com