First check the supply voltage to the amp -- if you're not giving it at least 13,8V you may find it winds back the max output power.
73, Matt VK2RQ > On 5 Mar 2014, at 4:36 am, "Cady, Fred" <[email protected]> wrote: > > Hi, > There is a power calibration that you can do. This is from the KX3 firmware > notes for KX3 firmware 1.76. Maybe you can try that. > > MCU 1.76 / DSP 1.27, 11-20-2013 > > * MENU:PA MODE NOW HAS POWER-OUT CAL (P out CAL) SETTING: This enables 75-W > power calibration in TUNE mode. When PWR is adjusted, and "P out CAL" mode is > in effect, setting power to 75 watts shows "CAL 75W" on VFO B. > > * KXPA100 DRIVE POWER CAL DATA UTILIZED: If the KXPA100's per-band 75-W drive > power has been saved at the factory, the KX3 will use it. If not, the KX3's > own per-band amplifier drive data is used (if available). This data is > created by setting PA MODE to Pout CAL (see above), then doing a TUNE on each > band at 75 W. > > > Cheers, > Fred KE7X > > "The Elecraft K3: Design, Configuration and Operation 2nd ed" > "The Elecraft KX3 - Going for the summit" > www.ke7x.com or www.lulu.com > KPA500 and KAT500 Quick Set Up Guide > http://www.ke7x.com/home/k-line-introduction-and-set-up-guide > (Coming soon: "The Elecraft KPA500 and KAT500 - the K-Line Dream Station") > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of G7KXZ > Sent: Tuesday, March 04, 2014 10:14 AM > To: [email protected] > Subject: [Elecraft] KX3 KXPA100 > > Hi All, > > I have had my KX3 for some time, just completed a kit KXPA100 with Tuner. > > Testing all works well, ATU tunes very well. Audio reports on TX good. > > My issue is with the Power out LED's and the Utility program monitoring the > power. I do not have an accurate Power Meter Output appears as indicated not > to exceed 70W > > The LEDs follow the Utility program (makes sense) Can an adjustments be made? > I am off to EA8 land on Monday......... and would like to run 100w and not > 12w !!! > > Att On > SWR 1:1 > KX3 Dial= 25W > Utility Input= 0.4 > Utility Forward= 7 > Dissipated= 52 > Relected= 0.0 > > SWR 1:1 > KX3 Dial= 50W > Utility Input= 1.2 > Utility Forward= 20 > Dissipated= 74 > Relected= 0.1 > > SWR 1:1 > KX3 Dial= 75W > Utility Input= 2.1 > Utility Forward= 36.5 > Dissipated= 87 > Relected= 0.3 > > SWR 1:1 > KX3 Dial= 100W > Utility Input= 4 > Utility Forward= 64 > Dissipated= 96 > Relected= 0.4 > > SWR 1:1 > KX3 Dial= 110W > Utility Input= 5 > Utility Forward= 75 > Dissipated= 96.5 > Relected= 0.4 > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
