Enzo, Your maximum power output on 15 meters is much lower than normal, so I suspect you do not actually have the 15 meter trimmers set correctly.
Go back to the 15 meter alignment and recheck the trimmer settings on the 4 band board for that band. It is possible to have the pre-mixer bandpass set at a 31 MHz range instead of the correct 26 MHz range. and if that happens, the K1 will be trying to transmit in the 26 MHz range instead of 21 MHz First set the 15 meter trimmer slots to the positions shown in Figure 11 of the K1-4 manual. The final adjustment should be within 20 degrees of that position. You must align 15 meters first, and then 20 meters. Only after 15 meters is correct will you be able to align 20 meters. 73, Don W3FPR Vincenzo Calandra wrote: > Hy all, > > I've finished to build my wonderful 4 band K1 today (serial n. 2745) but > there is only a problem: > > I don't have any power on 20mt. All other band work OK. The maximum > power on lower band (40mt) is 7.1 watt and on 15mt there is 2.5 watt. > > On 40mt - 30mt and 15mt i can easily change the power output with the > menu choice "out". > > On 20mt the push button seems dead :-) > During the assembly all preliminary tests are ok (resistance and voltage > checks). > > The rx part on 20mt seems work very good. I easily heard a signal of > -120dBm from my generator (HP8654B). > > Anyone can suggest or help me? > > Thanks in advance for all the reply and ... apologize me for my bad > english. :-) > > > > 73 de IZ5GVP Enzo (vcalan...@libero.it) > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
