Ray,
Did you do the basic KX3 Power Calibration as well as the Power
Calibration with the KXPA100? See Appendix B of the KXPA100 manual.
The external wattmeter has nothing to do with it, the power is measured
internally by the KX3 and KXPA100 circuits.
You will need a good 50 ohm dummy load that is flat through 6 meters.
73,
Don W3FPR
On 1/2/2017 12:42 PM, [email protected] wrote:
Hi Don,
I tried that but an external wattmeter confirmed the KXPA100 forward
and reflected power readings. Something in the KX3 is holding down
the power output when PA is ON, but not when PA is off.
73 Ray W2RS
-----Original Message-----
From: Don Wilhelm <[email protected]>
To: rsoifer1 <[email protected]>
Cc: elecraft <[email protected]>
Sent: Mon, Jan 2, 2017 10:33 am
Subject: Re: [Elecraft] KXPA100 with PX3
Ray,
Have you tried running the TX Gain Calibration on the KX3?
It may be that the KX3 wattmeter is not well calibrated.
If you do the TX Gain Calibration manually, it must be done on each band.
The KX3 Utility automates the process.
73,
Don W3FPR
On 1/2/2017 11:55 AM, [email protected] <mailto:[email protected]> wrote:
> Don and others,
>
> The good news is that you were right: the RJ-45 connectors in the
> control cable were not making good contact. I fixed that and PA ON
> operation of the KXPA100 is now working.
>
> The bad news, however, is that in Basic operation with PA OFF, the
> KX3/KXPA100 puts out full power, but the most I can get out of it with
> PA ON is 50-60 watts. The attenuator is set for OUT/AUTO and there is
> no more than 1 or 2 watts reflected power.
>
>
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