Yes, the power light is on. When I'm in Basic mode (PA MODE OFF), the KXPA100 draws 12 amps key down at 13 VDC. The power output is 100 watts. With PA MODE ON, there is no output and the current drawn is 8 amps at 13 VDC. The power is dissipated through the heat sink.
Hope this helps. 73 Ray W2RS Does the power light on the KXPA100 turn on when you power on the KX3? -----Original Message----- From: Don Wilhelm <[email protected]> To: rsoifer1 <[email protected]>; dave <[email protected]> Cc: fcady <[email protected]>; ai6do <[email protected]>; elecraft <[email protected]> Sent: Fri, Dec 30, 2016 1:49 pm Subject: Re: [Elecraft] KXPA100 with PX3 Ray, Does the power light on the KXPA100 turn on when you power on the KX3? I am not sure about your statements about "all the power it produces is being dissipated" Dissipated where? Into power output or into heat? Does the heatsink heat up? Similarly, your statement about "no power dissipated" when in basic mode. Can you connect an external wattmeter and a dummy load, put the KXAT100 into bypass and see what the KXPA100 is really producing. That more detailed information will aid in answering your question. If you can measure the current draw and voltage during keydown that would help even more. 73, Don W3FPR On 12/30/2016 3:16 PM, [email protected] wrote: > Further to my last email, when I am in Basic mode, with PA MODE set to > OFF and the KXPA100 on/off switch set to ON, I get full power out and > no dissipation. When PA MODE is ON and the on/off switch set to OFF, > the KX3 acts like the KXPA100 is connected to it but there is no power > output from the KXPA100 but all the power it produces is being > dissipated. Some setting is probably wrong, but I can't figure out > which one. > > ______________________________________________________________ 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 Message delivered to [email protected]
