Please disregard; just had a look at the manual and max output on 6 meters is 70-85W depending on frequency. I assume then that the radio is automatically dropping down to a safe output power rather than cooking at 100W. Guess I should have checked the manual first! My bad!
73, James K2QI On Fri, Nov 5, 2010 at 9:01 PM, James Sarte <[email protected]> wrote: > Hello Elecrafters, > > The recent SSB output power bug in FW 4.17 had me checking my K3 in all > bands. Fortunately, the fix was quick to come with Lyle's modified beta > v4.18. Sometimes I wonder if the boys at Aptos ever sleep. Anyway, after > loading the revised firmware and performing a TX calibration, I went ahead > and checked output again on all bands. The K3 was connected to an MFJ-250 > Versaload that was previously checked with an analyzer. The anomaly appears > to only affect 6 meters (52.0 MHz). In this instance, SWR is flat at 1.0:1. > By pressing the TUNE button, I start at 5 watts and proceed up to 100 watts > by turning the front panel power knob. After reaching the 100 watt mark, > the power output reading on the K3 drops from 100 to 86 or 87 - usually > within a second or two of reaching the 100 watt level. I can sit here and > replicate this all day. What's interesting to note however is that the > power output on the external meter doesn't seem to drop in conjunction with > what's displayed on the K3's LCD. I cannot verify for sure however as my > digital SWR meter is kaput. I'm relying on an older analog meter for this > test. > > Can anyone replicate this condition with their K3 on 6 meters? It seems > like a bug in the K3's output power reading rather than a physical fold-back > on power. It also doesn't matter if the ATU is active or bypassed. > > -- > 73 de James K2QI > President UNARC/4U1UN > > -- 73 de James K2QI President UNARC/4U1UN ______________________________________________________________ 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
