Hi Jim If you are interested in the details of AM you can read it here:
http://www.w8ji.com/amplitude_modulation.htm Since the ratio of peak power to carrier is 4:1 in a symmetrically modulated AM signal, the carrier power must be 25 watts or less with a 100-watt PEP radio. I'm sure the K3 would be fine at 25 watts carrier, but without a suitable scope and to be safe and allow for any asymmetry in modulation it is a good idea to run less. 73 Tom ----- Original Message ----- From: "Jim Harris" <[email protected]> To: "Elecraft Email" <[email protected]> Sent: Saturday, June 19, 2010 12:37 PM Subject: [Elecraft] (no subject) > > Hi, > > > > Recently I was able to do a QSO on AM for the first time using my K3. > Yes, I have the 6 Khz filter installed. As I was setting power I found I > could dial in about 100 watts the same as SSB. Realizing that would > over work the PA I brought it back to 25 watts and had a very nice QSO > with a good audio report. Afterward, I checked the specs and > instructions in the Owner's Manual and could find nothing about AM power > rating. > > > > What should be the power rating for the K3 when transmitting AM? Please > put that information in the manual. Would it be possible to limit the > AM power with a software update to eliminate the chance of > transmitting a signal that might be illegal and/or to prevent possible > damage > to the KPA3? > > > > Thanks and have a great day. > > CU in the Colorado QSO Party Sept 4th, 2010. > > 73, Jim, W0EM > > > > ______________________________________________________________ > 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 ______________________________________________________________ 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
