The KPA500 provides between 12 to 14 dB gain depending on the amp and the band.
FCC rule 97.317(a)(2) limits the gain of FCC-certified commercially sold amplifiers for the amateur market to 15 dB of gain. My KPA500 has about 12 dB of gain on 20 meters and about 13.5 dB of gain on 10 meters. At 12 dB, on 20 meters, my amp requires 31 watts of K3 exciter power to deliver 500 watts out. As it's (pretty close to) a linear amplifier, you can scale the input and output power linearly from that. 3.1 watts should deliver 50 watts. 6.2 watts should deliver 100 watts. 10 watts should deliver about 160 watts. The KXPA100 has similar gain, up to its 100 watt specified maximum. 73 de Dick, K6KR -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Rebong Sent: Thursday, November 28, 2013 12:34 PM To: [email protected] Subject: [Elecraft] KX3 and KPA-500 I would like to try this combination and wonder how many watts will I get out in the KPA-500. Happy Thanks Giving 73 George Sent from my iPad 3G ______________________________________________________________ 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
