[Elecraft] K3 - RTTY FSK-D power

Don Wilhelm w3fpr at embarqmail.com
Fri Jul 19 17:09:03 EDT 2013


Hank,

My initial guess is that it is your Powermaster.
I have recently built a 4 State QRP QRPometer to use when testing QRP 
transmitters.  It is an accurate meter as long as the waveform is a good 
sine wave (Good CW signal), but I have also discovered that it does not 
read correctly if the waveform is other than a clean CW signal (like 
PSK31 or RTTY).  The cause is the detection methods used in the meter.

I cannot say that your Powermaster is doing the same thing, but I will 
venture a guess that it is related.

The K3 does a very good job of controlling power at the requested level, 
no matter what the mode.
But then your question is valid - I don't know your particular answer, 
and I do not have a Powermaster meter to test with.  I am only offering 
my suspicion.

73,
Don W3FPR
On 7/19/2013 4:45 PM, Pfizenmayer wrote:
> If I set power to 100 watts  on CW the K3 setting  and my Array Solutions Powermaster power meter read the same within a watt or two. Leaving the K3 power set at 100 watts on CW and switch  to DATA and run MMTTY diddles  , the Powermaster is reading 116 watts. Sending RTTY text it bounces between 115 and 105 watts or so.
>
> K3 SN 7536 latest non beta firmware.
>
> Powermaster  or something in K3 ??? This is not Powermaster II and I have two couplers , both do the same.  SN2441 box.
>


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