[Elecraft] K2 power setting for SSB QRP?

TF3KX kristinn1 at gmail.com
Sat Aug 9 17:30:09 EDT 2008


Thanks, everyone.  I am still working on the presumption that 5W output for
CW and 10W PEP output for SSB would be acceptable for my purposes of award
gathering and contesting, as I already pointed out in my initial post.  I
justify this even further with the fact that my antennas are mediocre at
best, typically random wires or a temporary dipole at best.

But my question was specifically on the K2 and how it controls its output
power.  So, again, I presume the K2/KAT2 power regulating circuitry
guarantees that:

- if I set my power level at 5W my CW key-down output power will actually be
5W
- if I set my power level at 10W my SSB PEP output power will actually be
10W (avg power somewhat less)

...or relatively close to this.  Right?

73 - Kristinn, TF3KX



hank  k8dd wrote:
> 
> ----- Original Message ----- 
> From: "David Yarnes" <w7aqk at cox.net>
> To: "Ron D'Eau Claire" <ron at cobi.biz>; <elecraft at mailman.qth.net>
> Sent: Saturday, August 09, 2008 9:20 AM
> Subject: Re: [Elecraft] K2 power setting for SSB QRP?
> 
> 
>> Most QRP contests have a QRP limit of 5 watts for both CW and SSB.  I
>> know 
>> the ARRL does that.  ARCI, and I think GQRP, had QRP on SSB limited to 10 
>> watts, I think in an attempt to account for the disparity between the two 
>> modes
> 
> 
> QRP-ARCI defines QRP as:
> 
> QRP operation for QRP-ARCI purposes is defined as operation with a 
> transmitter power output of 5 watts or less (CW)(A1) and 10 watts PEP or 
> less (SSB)(A3J). QRP-ARCI awards are based on these output levels.
> 
> .
> I believe most other QRP organizations agree with this, although there are 
> some groups / contests that specify that SSB QRP is 5 watts (or less)
> output 
> on all modes.  As far as I know, no one uses the well discussed (and 
> sometimes over discussed!) use of ERP in QRP power levels.
> 
> 72  73    Hank    K8DD 
> 
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