Re: [Elecraft] K3, A calibration question

2012-12-26 Thread hawley, charles j jr
Oh...yes. I measured mine at 3.710 MHz

Sent from my iPad
Chuck, KE9UW 
(Jack for BMW motorcycles)

On Dec 26, 2012, at 11:29 AM, "Paul Kirley"  wrote:

> N0CE asked:
>> My K3 shows 15.4 amps at key down in CW at 100 watts with a P3
> attached.  
>> A dummy load was used.
> 
>> How does that compare with your K3's, please?
> 
> Please be aware that the transmit current drawn by the K3 depends
> significantly on the band.  On some bands, my K3 draws upwards of 20
> amps.
> 
> 73, Paul W8TM
> 
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[Elecraft] K3, A calibration question

2012-12-26 Thread Paul Kirley
N0CE asked:
>  My K3 shows 15.4 amps at key down in CW at 100 watts with a P3
attached.  
>  A dummy load was used.

>  How does that compare with your K3's, please?

Please be aware that the transmit current drawn by the K3 depends
significantly on the band.  On some bands, my K3 draws upwards of 20
amps.

73, Paul W8TM

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Re: [Elecraft] K3, A calibration question

2012-12-26 Thread ke9uw
At 100 watts according to the K3, with 12.6 vdc (drops down from 13.8 vdc
with key down CW) I get 19.5 adc according to the Hamsource EZ-meter.



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Chuck, KE9UW
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Re: [Elecraft] K3, A calibration question

2012-12-25 Thread Richard Fjeld
(Sorry Don, the first one got sent to you instead of the user group)

Thanks Don, and Fred AE6QL,

Your answers suggest it has it's own regulation built in, which I didn't want 
to assume.   So, I should be able to ignore my key down voltage for this 
question.  (I do intend to beef up my wire gauge.) 

My K3 shows 15.4 amps at key down in CW at 100 watts with a P3 attached.  A 
dummy load was used.

How does that compare with your K3's, please?   

Rich, n0ce
  - Original Message - 
  From: Don Wilhelm 
  To: Richard Fjeld 
  Cc: elecraft posting 
  Sent: Tuesday, December 25, 2012 7:35 PM
  Subject: Re: [Elecraft] K3, A calibration question


  Rich,

  As long as the voltage is within the spec limits the answer is that no 
  additional calibration should be required.
  \
  73,
  Don W3FPR

  On 12/25/2012 4:00 PM, Richard Fjeld wrote:
  > How much voltage adjustment change can be made to a power supply without 
the need to re-calibrate a K3?
  >
  > (I did not see this answered in the manual)
  >
  > Rich, n0ce
  >
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Re: [Elecraft] K3, A calibration question

2012-12-25 Thread Fred Townsend
Rich I'm not sure which calibration you are referring too but as long as you
stay with the specified input voltage range, all calibration will not
change.
73, Fred AE6QL

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Richard Fjeld
Sent: Tuesday, December 25, 2012 1:00 PM
To: elecraft posting
Subject: [Elecraft] K3, A calibration question

How much voltage adjustment change can be made to a power supply without the
need to re-calibrate a K3?  

(I did not see this answered in the manual) 

Rich, n0ce

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Re: [Elecraft] K3, A calibration question

2012-12-25 Thread Don Wilhelm

Rich,

As long as the voltage is within the spec limits the answer is that no 
additional calibration should be required.

\
73,
Don W3FPR

On 12/25/2012 4:00 PM, Richard Fjeld wrote:

How much voltage adjustment change can be made to a power supply without the 
need to re-calibrate a K3?

(I did not see this answered in the manual)

Rich, n0ce



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[Elecraft] K3, A calibration question

2012-12-25 Thread Richard Fjeld
How much voltage adjustment change can be made to a power supply without the 
need to re-calibrate a K3?  

(I did not see this answered in the manual) 

Rich, n0ce
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