[Elecraft] new to a K2 hesitation on power out & TX in general
Vic K2VCO
vic at rakefet.com
Wed Aug 12 12:50:55 EDT 2009
Ivin Flint wrote:
> I notice a hesitation in output power when I first key the rig after changing bands.
> IS THIS NORMAL DUE TO THE BAND SWITCHING RELAYS? It is a little annoying when trying
> to call that first station on a new band and they miss the first letter of my call and
> have to ask for it again. After the intitial key down it seems to work fine.
This is normal due to the closed-loop method used to set the drive.
> I also have more output power at least on 20 and 40 meters than what the power setting
> is set to. last night with the output power set to 5 watts I was getting about 7.5
> watts out. I plan to change out the resistor in R98 to correct this problem.
If you do not have the antenna tuner or KPA100 installed, then power measurement is done
by a simple RF voltmeter which is only accurate when the load is exactly 50 ohms.
For a QRP K2, the KAT2 antenna tuner is a great option -- it solves this problem, provides
two antenna outputs (programmable per band) and of course is a very effective tuner. I
highly recommend this.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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