If you had the KPA100 simply bypassed, but still in place, try the base K2 again but turn the power up to 15 watts (to properly bypass the KPA100 power the base K2 only through the coaxial power jack or turn the PA menu setting to OFF (secondary menu). If you get a HiCur message on 15 meters with that setup, check the base K2 17/15 meter LPF - check for an additional turn on L21 or L22.
If you have full 13 or more watts output (and no HiCur) powering only the base K2, then look at the KPA100. Look at all capacitor values in the input side of the PA transistors as well as the T-R switch area. 73, Don W3FPR On 7/6/2012 2:24 PM, aj4tf wrote: > Using a 50 ohm dummy load. > In tune mode, with KPA100 bypassed (power control to 10W out), power out is > OK on all bands (~10W). > > When the KPA100 is engaged, all bands have full power output except 15m (21 > MHz)... it tracks up to about 50W and peaks there. The other bands on the > LPF in the KPA100 (10m and 12m) are OK, getting around 95W out at 100W > setting. > > Confirmed with external wattmeter, it agrees with K2's power reading in > tune mode. > > I haven't opened the case up yet, this one has me scratching my head... any > ideas out there? > > AJ4TF > ______________________________________________________________ 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
