Colleagues, I've just completed building KX1 2468 and I'm a bit perplexed about the 20 and 40 metre transmit test. With a 13.8v supply here's what I see:
20m 3.0w 630mA 40m 2.5w 430mA This is barely spec for 20m and out of spec for 40m. I referred to the troubleshooting guide, and checked the following: R4 fully clockwise Nylon screw inserted through the tab of Q6 ATU not installed and jumper present Power output measured on my WM-2 with 50 ohm known load Relays seem to click when changing from 20m to 4om and vice versa Continuity check of T1, L3, L1, and L2 for poorly stripped/soldered leads I have not (yet) checked for a short or incorrect value in the BPF or LPF Is it safe to operate the transmitter for short periods of time with the PA heatsink disconnected (i.e. removed from case)? Thanks for the helping hands, Ron EI2JP ______________________________________________________________ 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
