[Elecraft] K3 Utility "Killed" K3, Can't Force Reload?

2020-11-19 Thread Rick Tavan 
After a computer configuration change, I needed to figure out which COM
port my K3 was coming up on. I ran K3 Utility and started trying COM ports.
After several "Port Closed" responses, I tried another and the rig began
sending *AA* and other stuff repeatedly. I couldn't stop it with the XMIT
button, so I hit POWER to turn off the radio. Now, when I touch POWER the
LCD lights up plain yellow as long as I hold POWER but as soon as I let go,
the screen goes blank. I tried to begin the Forced Reload protocol by
disconnecting power for 10 seconds, reconnecting, and HOLDing POWER for >10
seconds but, after at least 20 seconds, the MCU LD message still hadn't
appeared. Any suggestions?

Thanks,

/Rick N6XI

-- 

Rick Tavan
Truckee and Saratoga, CA
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Re: [Elecraft] KPA500+KAT500 interfacing

2020-11-19 Thread w4sc 
Google is your friend!!! ………..  There are several showing in a search…

Sent from Mail for Windows 10

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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Rich 
My issue is getting mine to work with an Icom as a band decoder for my 
band pass filter.  At one time it worked great with my Pro III, but I 
cannot get it to work with the 7300.   Elecraft provided help to no 
avail either.   Everything checks out fine.


Rich

On 11/19/2020 18:41 PM, Paul Fletcher wrote:

Should be fine - you don’t have the issue I had.


On 19 Nov 2020, at 23:37, Rich > wrote:


Well I have a negative voltage on U2 pin8 but it is 3 volts higher 
than the manual.   Probably not an issue


Rich

On 11/19/2020 16:58 PM, Paul Fletcher wrote:
The circuit diagram and the parts placement in the manual are 
correct. On mine it was the silkscreen for R12 and R13 that was 
reversed. Let Jack do some digging as it’s possible (from his 
comments) that this doesn’t affect all boards. Mine only arrived a 
few days ago. The easy way to check if there is an issue is to check 
there is the correct negative voltage on pin 8 of U2. Mine was 
almost 0V before swapping the resistors.


On 19 Nov 2020, at 21:41, Rich > wrote:


Thanks for the info.   Could you post the correct value of R12 and R13?

Mine was back at Elecraft way back.   I want to make sure it is 
already not corrected


Based on your info R12 should be 47ohm, correct?


Thanks

Rich

On 11/19/2020 15:52 PM, Paul GACEK via Elecraft wrote:

Hi Paul

Thanks for the heads up.

I had some communication issues with my KRC2 in that it worked 
like a champ with my K2 but not so with my KX3.


I’m going to crack open my krc2 shortly and see what values I have 
in those two resistor locations.


What radio where you using with the KRC2?

Paul
W6PNG/M0SNA
www.nomadic.blog 


On Nov 19, 2020, at 12:47 PM, Wes  wrote:

Thanks.  I've owned one of these for years and as I recall, it's 
always been a problem so it's been resigned to the junk box.


Maybe I can resurrect it to make it useful for something.

Wes  N7WS


On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
FAO anyone who's had issues getting the serial comms working on 
a KRC2:


R12 and R13 are transposed on the silkscreen on the PCB. I fell 
foul of this
when I recently built my KRC2 and it wouldn't communicate. After 
quick probe
around it was evident there was no negative voltage to the RS232 
driver, U2.
A little further probing revealed no 12V present at R13 but 
there was at
R12. It was then I realised the component layout in the manual 
is different
to that marked on the PCB. A quick swap of resistors and 
everything works as

it should.

I've re-read the errata and the manual and there is no reference 
to this
issue. Apologies if it's been flagged up on here already but I 
couldn't find
anyone pointing this out though there do seem to be a few people 
with serial

comms issues with the KRC2.

Hopefully this is of assistance to someone.

73 Paul M1PAF

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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Paul Fletcher via Elecraft 
Should be fine - you don’t have the issue I had.


> On 19 Nov 2020, at 23:37, Rich  wrote:
> 
> Well I have a negative voltage on U2 pin8 but it is 3 volts higher than the 
> manual.   Probably not an issue
> 
> Rich
> 
> On 11/19/2020 16:58 PM, Paul Fletcher wrote:
>> The circuit diagram and the parts placement in the manual are correct. On 
>> mine it was the silkscreen for R12 and R13 that was reversed. Let Jack do 
>> some digging as it’s possible (from his comments) that this doesn’t affect 
>> all boards. Mine only arrived a few days ago. The easy way to check if there 
>> is an issue is to check there is the correct negative voltage on pin 8 of 
>> U2. Mine was almost 0V before swapping the resistors.
>> 
>>> On 19 Nov 2020, at 21:41, Rich >> > wrote:
>>> 
>>> Thanks for the info.   Could you post the correct value of R12 and R13?
>>> 
>>> Mine was back at Elecraft way back.   I want to make sure it is already not 
>>> corrected
>>> 
>>> Based on your info R12 should be 47ohm, correct?
>>> 
>>> 
>>> Thanks
>>> 
>>> Rich
>>> 
>>> On 11/19/2020 15:52 PM, Paul GACEK via Elecraft wrote:
 Hi Paul
 
 Thanks for the heads up.
 
 I had some communication issues with my KRC2 in that it worked like a 
 champ with my K2 but not so with my KX3.
 
 I’m going to crack open my krc2 shortly and see what values I have in 
 those two resistor locations.
 
 What radio where you using with the KRC2?
 
 Paul
 W6PNG/M0SNA
 www.nomadic.blog 
 
> On Nov 19, 2020, at 12:47 PM, Wes  
>  wrote:
> 
> Thanks.  I've owned one of these for years and as I recall, it's always 
> been a problem so it's been resigned to the junk box.
> 
> Maybe I can resurrect it to make it useful for something.
> 
> Wes  N7WS
> 
>> On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
>> FAO anyone who's had issues getting the serial comms working on a KRC2:
>> 
>> R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of 
>> this
>> when I recently built my KRC2 and it wouldn't communicate. After quick 
>> probe
>> around it was evident there was no negative voltage to the RS232 driver, 
>> U2.
>> A little further probing revealed no 12V present at R13 but there was at
>> R12. It was then I realised the component layout in the manual is 
>> different
>> to that marked on the PCB. A quick swap of resistors and everything 
>> works as
>> it should.
>> 
>> I've re-read the errata and the manual and there is no reference to this
>> issue. Apologies if it's been flagged up on here already but I couldn't 
>> find
>> anyone pointing this out though there do seem to be a few people with 
>> serial
>> comms issues with the KRC2.
>> 
>> Hopefully this is of assistance to someone.
>> 
>> 73 Paul M1PAF
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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Rich 
Well I have a negative voltage on U2 pin8 but it is 3 volts higher than 
the manual.   Probably not an issue


Rich

On 11/19/2020 16:58 PM, Paul Fletcher wrote:
The circuit diagram and the parts placement in the manual are correct. 
On mine it was the silkscreen for R12 and R13 that was reversed. Let 
Jack do some digging as it’s possible (from his comments) that this 
doesn’t affect all boards. Mine only arrived a few days ago. The easy 
way to check if there is an issue is to check there is the correct 
negative voltage on pin 8 of U2. Mine was almost 0V before swapping 
the resistors.


On 19 Nov 2020, at 21:41, Rich > wrote:


Thanks for the info.   Could you post the correct value of R12 and R13?

Mine was back at Elecraft way back.   I want to make sure it is 
already not corrected


Based on your info R12 should be 47ohm, correct?


Thanks

Rich

On 11/19/2020 15:52 PM, Paul GACEK via Elecraft wrote:

Hi Paul

Thanks for the heads up.

I had some communication issues with my KRC2 in that it worked like 
a champ with my K2 but not so with my KX3.


I’m going to crack open my krc2 shortly and see what values I have 
in those two resistor locations.


What radio where you using with the KRC2?

Paul
W6PNG/M0SNA
www.nomadic.blog 


On Nov 19, 2020, at 12:47 PM, Wes  wrote:

Thanks.  I've owned one of these for years and as I recall, it's 
always been a problem so it's been resigned to the junk box.


Maybe I can resurrect it to make it useful for something.

Wes  N7WS


On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
FAO anyone who's had issues getting the serial comms working on a 
KRC2:


R12 and R13 are transposed on the silkscreen on the PCB. I fell 
foul of this
when I recently built my KRC2 and it wouldn't communicate. After 
quick probe
around it was evident there was no negative voltage to the RS232 
driver, U2.
A little further probing revealed no 12V present at R13 but there 
was at
R12. It was then I realised the component layout in the manual is 
different
to that marked on the PCB. A quick swap of resistors and 
everything works as

it should.

I've re-read the errata and the manual and there is no reference 
to this
issue. Apologies if it's been flagged up on here already but I 
couldn't find
anyone pointing this out though there do seem to be a few people 
with serial

comms issues with the KRC2.

Hopefully this is of assistance to someone.

73 Paul M1PAF

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Re: [Elecraft] [K3] Odd behavior at high power

2020-11-19 Thread Keith Trinity WE6R 

Hi Rick;
Replace D36 & 37 on the RF board. Very early K3 RF boards had a weaker part.
Elecraft part # E56048
Digikey; BAS70INCT Diode, 70V, SOT23
Keith WE6R Elecraft Tech
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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Paul Fletcher via Elecraft 
The circuit diagram and the parts placement in the manual are correct. On mine 
it was the silkscreen for R12 and R13 that was reversed. Let Jack do some 
digging as it’s possible (from his comments) that this doesn’t affect all 
boards. Mine only arrived a few days ago. The easy way to check if there is an 
issue is to check there is the correct negative voltage on pin 8 of U2. Mine 
was almost 0V before swapping the resistors.

> On 19 Nov 2020, at 21:41, Rich  wrote:
> 
> Thanks for the info.   Could you post the correct value of R12 and R13?
> 
> Mine was back at Elecraft way back.   I want to make sure it is already not 
> corrected
> 
> Based on your info R12 should be 47ohm, correct?
> 
> 
> Thanks
> 
> Rich
> 
> On 11/19/2020 15:52 PM, Paul GACEK via Elecraft wrote:
>> Hi Paul
>> 
>> Thanks for the heads up.
>> 
>> I had some communication issues with my KRC2 in that it worked like a champ 
>> with my K2 but not so with my KX3.
>> 
>> I’m going to crack open my krc2 shortly and see what values I have in those 
>> two resistor locations.
>> 
>> What radio where you using with the KRC2?
>> 
>> Paul
>> W6PNG/M0SNA
>> www.nomadic.blog
>> 
>>> On Nov 19, 2020, at 12:47 PM, Wes  wrote:
>>> 
>>> Thanks.  I've owned one of these for years and as I recall, it's always 
>>> been a problem so it's been resigned to the junk box.
>>> 
>>> Maybe I can resurrect it to make it useful for something.
>>> 
>>> Wes  N7WS
>>> 
 On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
 FAO anyone who's had issues getting the serial comms working on a KRC2:
 
 R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of 
 this
 when I recently built my KRC2 and it wouldn't communicate. After quick 
 probe
 around it was evident there was no negative voltage to the RS232 driver, 
 U2.
 A little further probing revealed no 12V present at R13 but there was at
 R12. It was then I realised the component layout in the manual is different
 to that marked on the PCB. A quick swap of resistors and everything works 
 as
 it should.
 
 I've re-read the errata and the manual and there is no reference to this
 issue. Apologies if it's been flagged up on here already but I couldn't 
 find
 anyone pointing this out though there do seem to be a few people with 
 serial
 comms issues with the KRC2.
 
 Hopefully this is of assistance to someone.
 
 73 Paul M1PAF
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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Jack Brindle via Elecraft 
Please do. Also, please also send a picture of the label on the bottom side 
closest to the front of the device.

Jack, W6FB
Elecraft Engineering


> On Nov 19, 2020, at 1:47 PM, Paul Fletcher  wrote:
> 
> I have a Rev C PCB and the silkscreen does not match the diagram in the Rev C 
> manual. On the PCB R12 and R13 are marked the opposite way round to the 
> manual. I can send pics if you want them.
> 
>> On 19 Nov 2020, at 21:33, Jack Brindle  wrote:
>> 
>> After seeing this report I pulled the Rev C PCB (the only PCB we have 
>> shipped for this product) and took a good look at it, then looked at the 
>> docs and finally the Gerbers for the board.
>> R12 and R13 on the KRC2 PCB are properly labelled. R12, closest to the 
>> switches, is a 4.7K ohm resistor (yellow-violet-red) used to pull the RS232 
>> line to -12V.
>> R13 is next to it, closest to the DE9 connectors is a 47 ohm resistor 
>> (yellow-violet-black) and provides +12V power for the JFET.
>> The legends on the PCB and in Figure 10 of the KRC2 Rev C manual are correct.
>> 
>> Now, what caused you to think they were backwards? And, let’s make sure that 
>> you do have a Rev C board in your KRC2.
>> 
>> 73,
>> Jack, W6FB
>> 
>>> On Nov 19, 2020, at 11:58 AM, Paul Fletcher via Elecraft 
>>>  wrote:
>>> 
>>> FAO anyone who's had issues getting the serial comms working on a KRC2:
>>> 
>>> R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
>>> when I recently built my KRC2 and it wouldn't communicate. After quick probe
>>> around it was evident there was no negative voltage to the RS232 driver, U2.
>>> A little further probing revealed no 12V present at R13 but there was at
>>> R12. It was then I realised the component layout in the manual is different
>>> to that marked on the PCB. A quick swap of resistors and everything works as
>>> it should.
>>> 
>>> I've re-read the errata and the manual and there is no reference to this
>>> issue. Apologies if it's been flagged up on here already but I couldn't find
>>> anyone pointing this out though there do seem to be a few people with serial
>>> comms issues with the KRC2.
>>> 
>>> Hopefully this is of assistance to someone.
>>> 
>>> 73 Paul M1PAF
>>> 
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>> 
> 

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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Paul Fletcher via Elecraft 
I have a Rev C PCB and the silkscreen does not match the diagram in the Rev C 
manual. On the PCB R12 and R13 are marked the opposite way round to the manual. 
I can send pics if you want them.

> On 19 Nov 2020, at 21:33, Jack Brindle  wrote:
> 
> After seeing this report I pulled the Rev C PCB (the only PCB we have shipped 
> for this product) and took a good look at it, then looked at the docs and 
> finally the Gerbers for the board.
> R12 and R13 on the KRC2 PCB are properly labelled. R12, closest to the 
> switches, is a 4.7K ohm resistor (yellow-violet-red) used to pull the RS232 
> line to -12V.
> R13 is next to it, closest to the DE9 connectors is a 47 ohm resistor 
> (yellow-violet-black) and provides +12V power for the JFET.
> The legends on the PCB and in Figure 10 of the KRC2 Rev C manual are correct.
> 
> Now, what caused you to think they were backwards? And, let’s make sure that 
> you do have a Rev C board in your KRC2.
> 
> 73,
> Jack, W6FB
> 
>> On Nov 19, 2020, at 11:58 AM, Paul Fletcher via Elecraft 
>>  wrote:
>> 
>> FAO anyone who's had issues getting the serial comms working on a KRC2:
>> 
>> R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
>> when I recently built my KRC2 and it wouldn't communicate. After quick probe
>> around it was evident there was no negative voltage to the RS232 driver, U2.
>> A little further probing revealed no 12V present at R13 but there was at
>> R12. It was then I realised the component layout in the manual is different
>> to that marked on the PCB. A quick swap of resistors and everything works as
>> it should.
>> 
>> I've re-read the errata and the manual and there is no reference to this
>> issue. Apologies if it's been flagged up on here already but I couldn't find
>> anyone pointing this out though there do seem to be a few people with serial
>> comms issues with the KRC2.
>> 
>> Hopefully this is of assistance to someone.
>> 
>> 73 Paul M1PAF
>> 
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> 

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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Gordon LaPoint 
I have two KRC2's, one uses the aux-bus line with a K3 and the other 
uses the RS232 with a Kenwood TS590sg. The only problems I have had are 
all self induced with programing errors!
They both work flawlessly and have for years, one drives a WX0b Six Pak, 
the other drives a MFJ RCS-20Lx switch.

Gordon - N1MGO

On 11/19/2020 16:26 PM, Paul Fletcher via Elecraft wrote:

Hi Paul,

I’ve not used it with a radio yet, this was to communicate with a PC to 
configure the KRC2 (though the same issue would apply to anything using RS232). 
The KRC2 wasn’t responding at all hence the start of fault finding and the 
findings I posted. As soon as the resistors were corrected everything worked as 
it should without issue.

Hope this helps.

73 Paul M1PAF


On 19 Nov 2020, at 20:52, Paul GACEK via Elecraft  
wrote:

Hi Paul

Thanks for the heads up.

I had some communication issues with my KRC2 in that it worked like a champ 
with my K2 but not so with my KX3.

I’m going to crack open my krc2 shortly and see what values I have in those two 
resistor locations.

What radio where you using with the KRC2?

Paul
W6PNG/M0SNA
www.nomadic.blog 


On Nov 19, 2020, at 12:47 PM, Wes mailto:wes_n...@triconet.org>> wrote:

Thanks.  I've owned one of these for years and as I recall, it's always been a 
problem so it's been resigned to the junk box.

Maybe I can resurrect it to make it useful for something.

Wes  N7WS


On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
FAO anyone who's had issues getting the serial comms working on a KRC2:

R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
when I recently built my KRC2 and it wouldn't communicate. After quick probe
around it was evident there was no negative voltage to the RS232 driver, U2.
A little further probing revealed no 12V present at R13 but there was at
R12. It was then I realised the component layout in the manual is different
to that marked on the PCB. A quick swap of resistors and everything works as
it should.

I've re-read the errata and the manual and there is no reference to this
issue. Apologies if it's been flagged up on here already but I couldn't find
anyone pointing this out though there do seem to be a few people with serial
comms issues with the KRC2.

Hopefully this is of assistance to someone.

73 Paul M1PAF

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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Rich 

Thanks for the info.   Could you post the correct value of R12 and R13?

Mine was back at Elecraft way back.   I want to make sure it is already 
not corrected


Based on your info R12 should be 47ohm, correct?


Thanks

Rich

On 11/19/2020 15:52 PM, Paul GACEK via Elecraft wrote:

Hi Paul

Thanks for the heads up.

I had some communication issues with my KRC2 in that it worked like a champ 
with my K2 but not so with my KX3.

I’m going to crack open my krc2 shortly and see what values I have in those two 
resistor locations.

What radio where you using with the KRC2?

Paul
W6PNG/M0SNA
www.nomadic.blog


On Nov 19, 2020, at 12:47 PM, Wes  wrote:

Thanks.  I've owned one of these for years and as I recall, it's always been a 
problem so it's been resigned to the junk box.

Maybe I can resurrect it to make it useful for something.

Wes  N7WS


On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
FAO anyone who's had issues getting the serial comms working on a KRC2:

R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
when I recently built my KRC2 and it wouldn't communicate. After quick probe
around it was evident there was no negative voltage to the RS232 driver, U2.
A little further probing revealed no 12V present at R13 but there was at
R12. It was then I realised the component layout in the manual is different
to that marked on the PCB. A quick swap of resistors and everything works as
it should.

I've re-read the errata and the manual and there is no reference to this
issue. Apologies if it's been flagged up on here already but I couldn't find
anyone pointing this out though there do seem to be a few people with serial
comms issues with the KRC2.

Hopefully this is of assistance to someone.

73 Paul M1PAF

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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Jack Brindle via Elecraft 
After seeing this report I pulled the Rev C PCB (the only PCB we have shipped 
for this product) and took a good look at it, then looked at the docs and 
finally the Gerbers for the board.
R12 and R13 on the KRC2 PCB are properly labelled. R12, closest to the 
switches, is a 4.7K ohm resistor (yellow-violet-red) used to pull the RS232 
line to -12V.
R13 is next to it, closest to the DE9 connectors is a 47 ohm resistor 
(yellow-violet-black) and provides +12V power for the JFET.
The legends on the PCB and in Figure 10 of the KRC2 Rev C manual are correct.

Now, what caused you to think they were backwards? And, let’s make sure that 
you do have a Rev C board in your KRC2.

73,
Jack, W6FB

> On Nov 19, 2020, at 11:58 AM, Paul Fletcher via Elecraft 
>  wrote:
> 
> FAO anyone who's had issues getting the serial comms working on a KRC2:
> 
> R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
> when I recently built my KRC2 and it wouldn't communicate. After quick probe
> around it was evident there was no negative voltage to the RS232 driver, U2.
> A little further probing revealed no 12V present at R13 but there was at
> R12. It was then I realised the component layout in the manual is different
> to that marked on the PCB. A quick swap of resistors and everything works as
> it should.
> 
> I've re-read the errata and the manual and there is no reference to this
> issue. Apologies if it's been flagged up on here already but I couldn't find
> anyone pointing this out though there do seem to be a few people with serial
> comms issues with the KRC2.
> 
> Hopefully this is of assistance to someone.
> 
> 73 Paul M1PAF
> 
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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Paul Fletcher via Elecraft 
Hi Paul,

I’ve not used it with a radio yet, this was to communicate with a PC to 
configure the KRC2 (though the same issue would apply to anything using RS232). 
The KRC2 wasn’t responding at all hence the start of fault finding and the 
findings I posted. As soon as the resistors were corrected everything worked as 
it should without issue.

Hope this helps.

73 Paul M1PAF

> On 19 Nov 2020, at 20:52, Paul GACEK via Elecraft  
> wrote:
> 
> Hi Paul
> 
> Thanks for the heads up.
> 
> I had some communication issues with my KRC2 in that it worked like a champ 
> with my K2 but not so with my KX3.
> 
> I’m going to crack open my krc2 shortly and see what values I have in those 
> two resistor locations.
> 
> What radio where you using with the KRC2?
> 
> Paul
> W6PNG/M0SNA 
> www.nomadic.blog 
> 
>> On Nov 19, 2020, at 12:47 PM, Wes > > wrote:
>> 
>> Thanks.  I've owned one of these for years and as I recall, it's always 
>> been a problem so it's been resigned to the junk box.
>> 
>> Maybe I can resurrect it to make it useful for something.
>> 
>> Wes  N7WS
>> 
>>> On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
>>> FAO anyone who's had issues getting the serial comms working on a KRC2:
>>> 
>>> R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
>>> when I recently built my KRC2 and it wouldn't communicate. After quick probe
>>> around it was evident there was no negative voltage to the RS232 driver, U2.
>>> A little further probing revealed no 12V present at R13 but there was at
>>> R12. It was then I realised the component layout in the manual is different
>>> to that marked on the PCB. A quick swap of resistors and everything works as
>>> it should.
>>> 
>>> I've re-read the errata and the manual and there is no reference to this
>>> issue. Apologies if it's been flagged up on here already but I couldn't find
>>> anyone pointing this out though there do seem to be a few people with serial
>>> comms issues with the KRC2.
>>> 
>>> Hopefully this is of assistance to someone.
>>> 
>>> 73 Paul M1PAF
>> 
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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Paul GACEK via Elecraft 
Hi Paul

Thanks for the heads up.

I had some communication issues with my KRC2 in that it worked like a champ 
with my K2 but not so with my KX3.

I’m going to crack open my krc2 shortly and see what values I have in those two 
resistor locations.

What radio where you using with the KRC2?

Paul
W6PNG/M0SNA 
www.nomadic.blog

> On Nov 19, 2020, at 12:47 PM, Wes  wrote:
> 
> Thanks.  I've owned one of these for years and as I recall, it's always been 
> a problem so it's been resigned to the junk box.
> 
> Maybe I can resurrect it to make it useful for something.
> 
> Wes  N7WS
> 
>> On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:
>> FAO anyone who's had issues getting the serial comms working on a KRC2:
>> 
>> R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
>> when I recently built my KRC2 and it wouldn't communicate. After quick probe
>> around it was evident there was no negative voltage to the RS232 driver, U2.
>> A little further probing revealed no 12V present at R13 but there was at
>> R12. It was then I realised the component layout in the manual is different
>> to that marked on the PCB. A quick swap of resistors and everything works as
>> it should.
>> 
>> I've re-read the errata and the manual and there is no reference to this
>> issue. Apologies if it's been flagged up on here already but I couldn't find
>> anyone pointing this out though there do seem to be a few people with serial
>> comms issues with the KRC2.
>> 
>> Hopefully this is of assistance to someone.
>> 
>> 73 Paul M1PAF
> 
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Re: [Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Wes 
Thanks.  I've owned one of these for years and as I recall, it's always been a 
problem so it's been resigned to the junk box.


Maybe I can resurrect it to make it useful for something.

Wes  N7WS

On 11/19/2020 12:58 PM, Paul Fletcher via Elecraft wrote:

FAO anyone who's had issues getting the serial comms working on a KRC2:

R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
when I recently built my KRC2 and it wouldn't communicate. After quick probe
around it was evident there was no negative voltage to the RS232 driver, U2.
A little further probing revealed no 12V present at R13 but there was at
R12. It was then I realised the component layout in the manual is different
to that marked on the PCB. A quick swap of resistors and everything works as
it should.

I've re-read the errata and the manual and there is no reference to this
issue. Apologies if it's been flagged up on here already but I couldn't find
anyone pointing this out though there do seem to be a few people with serial
comms issues with the KRC2.

Hopefully this is of assistance to someone.

73 Paul M1PAF


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[Elecraft] KRC2 silkscreen gotcha

2020-11-19 Thread Paul Fletcher via Elecraft 
FAO anyone who's had issues getting the serial comms working on a KRC2:

R12 and R13 are transposed on the silkscreen on the PCB. I fell foul of this
when I recently built my KRC2 and it wouldn't communicate. After quick probe
around it was evident there was no negative voltage to the RS232 driver, U2.
A little further probing revealed no 12V present at R13 but there was at
R12. It was then I realised the component layout in the manual is different
to that marked on the PCB. A quick swap of resistors and everything works as
it should.

I've re-read the errata and the manual and there is no reference to this
issue. Apologies if it's been flagged up on here already but I couldn't find
anyone pointing this out though there do seem to be a few people with serial
comms issues with the KRC2.

Hopefully this is of assistance to someone.

73 Paul M1PAF

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Re: [Elecraft] KPA500+KAT500 interfacing

2020-11-19 Thread Tom 
In the plans for Win4IcomSuite.
Tom

-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of kd...@frawg.org
Sent: Thursday, November 19, 2020 1:55 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500+KAT500 interfacing

Andy and Ken,

Wonder if this could be adapted? https://www.youtube.com/watch?v=9_xMEbW8z28

KD4IZ
Jack Spitznagel
FM19oo



-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Andy Durbin
Sent: Thursday, November 19, 2020 13:49
To: Ken Winterling ; elecraft@mailman.qth.net
Subject: [Elecraft] KPA500+KAT500 interfacing

"I would like to see an IcomCI-V interface for the KPA500/KAT500
combination. "

It probably wouldn't be too difficult to implement.  I have seen code for a
CI-V decoder and, once the required TX or RX frequency has been extracted,
it would be easy to compute and send band to KPA500 and frequency to KAT500.

No motivation here though and I don't know if anyone has published a
suitable interface.

73,
Andy, k3wyc


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delivered to elecraft.l...@videotron.ca 


-- 
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

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Re: [Elecraft] KPA500+KAT500 interfacing

2020-11-19 Thread Jim Brown 

On 11/19/2020 10:48 AM, Andy Durbin wrote:

It probably wouldn't be too difficult to implement.  I have seen code for a 
CI-V decoder and, once the required TX or RX frequency has been extracted, it 
would be easy to compute and send band to KPA500 and frequency to KAT500.


Many years ago, a homebrew CI-V to RS232 interface was published in QST, 
and about 15 years ago, I bought two at a Chicago area hamfest that a 
ham had made a small business of building and selling. It worked fine 
with the IC746 that I owned at the time.


73, Jim K9YC


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Re: [Elecraft] KPA500+KAT500 interfacing

2020-11-19 Thread kd4iz 
Andy and Ken,

Wonder if this could be adapted? https://www.youtube.com/watch?v=9_xMEbW8z28

KD4IZ
Jack Spitznagel
FM19oo



-Original Message-
From: elecraft-boun...@mailman.qth.net  On
Behalf Of Andy Durbin
Sent: Thursday, November 19, 2020 13:49
To: Ken Winterling ; elecraft@mailman.qth.net
Subject: [Elecraft] KPA500+KAT500 interfacing

"I would like to see an IcomCI-V interface for the KPA500/KAT500
combination. "

It probably wouldn't be too difficult to implement.  I have seen code for a
CI-V decoder and, once the required TX or RX frequency has been extracted,
it would be easy to compute and send band to KPA500 and frequency to KAT500.

No motivation here though and I don't know if anyone has published a
suitable interface.

73,
Andy, k3wyc


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[Elecraft] KPA500+KAT500 interfacing

2020-11-19 Thread Andy Durbin 
"I would like to see an IcomCI-V interface for the KPA500/KAT500 combination. "

It probably wouldn't be too difficult to implement.  I have seen code for a 
CI-V decoder and, once the required TX or RX frequency has been extracted, it 
would be easy to compute and send band to KPA500 and frequency to KAT500.

No motivation here though and I don't know if anyone has published a suitable 
interface.

73,
Andy, k3wyc


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Re: [Elecraft] Keying oand sending CW on KX3 with N1MM

2020-11-19 Thread Zbigniew Tyrlik 
Just working on such project - it is possible, using USB mic, and ViceMeteer 
Banana or Potato. Nice description at 
https://forums.qrz.com/index.php?threads/going-software-defined.650584;   I 
added also ability to use WSJTX, or any AFSK modes. Mic is connected to 
computer; Banana does mixing job and feeds KX3 via USB audio card. 



73, de KU1T 

Perl; may ways to skin the cat and obfuscate your code. 

> On Nov 19, 2020, at 10:24, sm7vzx <7...@tele2.se> wrote:
> 
> Nice little device Lothar, but what about SSB when you want to use KX3 with
> N1MM in SSB contests?
> 
> How to send and receive audio to computer and receive it from KX3?
> 
> 73' Samir, sm7vzx
> 
> 
> 
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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-- 

Zbigniew J. Tyrlik DoD# 0759   R1200GSA   IBA 31595
Free thinker, traveler, poet, happy father and husband
point'n'click view of the world http://www.kleks.org/fotos/

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Re: [Elecraft] KPA500+KAT500 interfacing

2020-11-19 Thread Ken Winterling 
I would like to see an Icom CI-V interface for the KPA500/KAT500
combination. This is built into the KPA1500 which is a combination
amp/tuner/antenna selector switch. The KPA1500 "speaks" Elecraft, Kenwood,
Yaesu, and Icom. The KPA500 can use Icom "band data" voltages but that
doesn't support the WARC bands. There is also no communication with the
KAT500 to tell it what band/antenna to use.

Yes, the KPA500/KAT500 combination switches perfectly to the proper band,
frequency, and antenna on *transmit *but does nothing on receive.  When
just listening it is necessary to manually press the ANT(tenna) button on
the KAT500 to select the proper antenna for the selected frequency (band)
on the Icom radio. If you are trying to scan memories that doesn't work at
all. Having the ability for the KAT500 to follow the receiver so it could
select the proper band/antenna would be very helpful.

Has anybody built such an interface or know of an existing commercial
device that will perform the above function?

73,

Ken
WA2LBI





On Wed, Nov 18, 2020 at 4:01 PM Andy Durbin  wrote:

> Some people seem to get quite hostile when I carefully distinguish between
> "band data" and "frequency data".  For that reason I didn't emphasize that
> KAT500 needs FREQUENCY not BAND.
>
> The cable for "KPA500 polls Kenwood and KPA500 and KAT500 listen to
> Kenwood" can be cobbled together for probably under $10 assuming you don't
> have the connectors and cable in the junk bin.  You can also buy the cable
> from Elecraft.  It works fine as long as you accept that KAT500 can only
> follow VFO A (limitation of current firmware).  I was not satisfied with
> this (and other limitations) so I launched on a long, educational,
> rewarding, and sometimes frustrating, project to build a controller that
> made the Kenwood/KPA500/KAT500 interface work the way I though it should (I
> don't claim it works correctly , only that it works the way I want it to).
>
> I've provided the link before but links a cheap so here it is again -
> https://tinyurl.com/ycrszzbe
>
> 73,
> Andy, k3wyc
>
> __
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Re: [Elecraft] CONFIG PTT-KEY Parameter

2020-11-19 Thread Don Wilhelm 

Does the same thing happen if you disconnect the computer?

73,
Don W3FPR

On 11/19/2020 10:07 AM, w...@jetbroadband.com wrote:

GM All,

  


I have something very unusual going on with both of my K3 radios. I set the
CONFIG PTT-KEY parameter to RTS- DTR and the parameter does not change  when
I go in and out to the CONFIG menu, nor does it change when I change bands.

If, however, I turn off the radio and then turn it back on, the  CONFIG
PTT-KEY defaults (?) back to OFF - OFF. I am using the KIOB interface and
the RS232 parameter is set to USB with the resultant COMPORT is COM5. When
this started recently when I was having problems with MITTY and N!MM with
AFSK RTTY and I had to turn off and on the radio several times to change
some cables. Normally, I very seldom turn off the radio - meaning for the
most part, It's on 24/7. I have looked through Elecraft's and Fred's
documentation and I could not find any reference to "Oh, by the way, if you
do or don't do this, then weird things could happen".

Has anyone else encountered this problem and if so, how did you solved it?

  

  


Best regards,

  


Jerry, W1Ie

.

  

  


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Re: [Elecraft] P3 Transmit Display Failure

2020-11-19 Thread Alan Bloom 
My first thought is there might be an intermittent RS-232 connection 
between the K3 and the P3.  That would prevent the P3 receiving the TX 
and RX commands from the K3 so that the P3 gets hung up in TX or RX 
mode.  If you can lay your hands on a spare RS-232 cable, I would try it 
to see if that fixes the problem.


If the RS-232 connection is confirmed OK and the problem still occurs, then:

Have you tried cycling power without restoring the config file?  If it 
really does require the config file restoration to restore proper 
operation then it must be some setting that is accidentally getting 
changed.  That can sometimes be caused by some computer software sending 
commands to the P3 via RS-232.  Try running the K3/P3 with no RS-232 
connection to the computer and see if you still see the problem.


If the problem occurs with no connection between the K3/P3 and the 
computer and you can confirm that it does require a config restore to 
get back to normal operation, then it sounds like the EEPROM in the P3 
must be going bad.  I have never heard of that happening, but I guess 
it's possible.


Alan N1AL


On 11/18/2020 12:19 PM, hawley, charles j jr wrote:

I have a reoccurring issue with the P3 display of the transmit cw display. 
Occasionally, the P3 doesn't display the TX waveform ( I have never noticed if 
this happening on SSB...probably not since I have never had to fix it). The fix 
is loading a config file stored when the problem was not happening.
I have tried to store a config file when it was happening just to see and then 
restore using that file. What happens then is the P3 display locked up with a 
dit and could not be unlocked.
After this test, I had to turn off the K3s and unpower the P3, restore power 
and turn the K3s on, and restore with a copy of the config which was taken when 
the display was showing transmit cw.
I'm thinking stray RF somehow causing this but never happened on SSB...and I 
have no clue what is getting flipped in the rig or P3 to have this happen.
Since I can restore the config and fix it, I guess I'm mostly curious why it's 
happening, any ideas?

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

  Amateur Radio, KE9UW
  aka Jack, BMW Motorcycles



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Re: [Elecraft] Keying oand sending CW on KX3 with N1MM

2020-11-19 Thread sm7vzx 
Nice little device Lothar, but what about SSB when you want to use KX3 with
N1MM in SSB contests?

How to send and receive audio to computer and receive it from KX3?

73' Samir, sm7vzx



--
Sent from: http://elecraft.365791.n2.nabble.com/
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[Elecraft] CONFIG PTT-KEY Parameter

2020-11-19 Thread w1ie 
GM All,

 

I have something very unusual going on with both of my K3 radios. I set the
CONFIG PTT-KEY parameter to RTS- DTR and the parameter does not change  when
I go in and out to the CONFIG menu, nor does it change when I change bands.

If, however, I turn off the radio and then turn it back on, the  CONFIG
PTT-KEY defaults (?) back to OFF - OFF. I am using the KIOB interface and
the RS232 parameter is set to USB with the resultant COMPORT is COM5. When
this started recently when I was having problems with MITTY and N!MM with
AFSK RTTY and I had to turn off and on the radio several times to change
some cables. Normally, I very seldom turn off the radio - meaning for the
most part, It's on 24/7. I have looked through Elecraft's and Fred's
documentation and I could not find any reference to "Oh, by the way, if you
do or don't do this, then weird things could happen".

Has anyone else encountered this problem and if so, how did you solved it?

 

 

Best regards,

 

Jerry, W1Ie

.  

 

 

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