Pierre, That strongly suggests that your KPA100 has a parasitic. If your KPA100 is of recent vintage (less than 2 years old), it should be quite stable. But, if you have added the KPA100UPKT, I must ask if your upgrade kit included a new C31 capacitor of 0.22 uF value. Many KPA100UPKT kits did not include this capacitor until recently. If this situation fits your case, send an email to [email protected] asking for a new capacitor for C31.
If your KPA100 is of the older T/R switch design - red cores for L15 and L16, then I would suggest that adding the KPA100UPKT would solve your problem. The current KPA100UPKT includes the new capacitor for C31. 73, Don W3FPR Pierre wrote: > Well I spoke about the SWR meter on my MFJ-949E. If I send CW, when I > release the key, the reflected power needle goes up wildly.. sign of a > high SWR... even at 11 watts. > > But that same needle stay at 0 W for a 10 Watts transmission... > ______________________________________________________________ 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

