Laurent HAAS - F6FVY wrote: > > After using mostly these rigs for SSB contesting in FY5KE or in other > places, we are still facing a lack of "dynamics", "punch", > "penetration", "power", whatever you call it. In other words, when > comparing this rig to our radios we previously used (TS-850), with the > same microphone (Heil HC-4 element) and the same output RF power, the K3 > is clearly way behind in term of "average power" we can read on the Bird > wattmeter wired on its RF output. Even if observing the wattmeter needle > is not a very scientific measurement (we admit it), various comparative > reports on the air do confirm our feeling. >
1. The plain HC4 (non-electret) cartridge should be set to FP.H or rP.H (tap 1 to toggle L<>H while in MIC SEL) with no bIAS (tap 2 to toggle on<>off while in MIC SEL). 2. Set CMP = 0. Adjust MIC for 5-7 bar peaks on the ALC meter when using a normal contest voice. Set CMP = 23 or your listening preference in MONitor. With PWR set max CW (110W), I measure 92.9W in TUNE while using a factory calibrated LP-100A (so maybe I need to calibrate my K3 again). When speaking in a contest voice, I measure ~90W peaks (sometimes up to 94.5). The audio sounds punchy but clean and the meter indicates output peaks are where they should be. I don't use any EQ with my HC4. Since you're a multiop, you might want to consider LOCKing your MIC, CMP, and PWR settings in CONFIG:PWR SET (toggle 1 to lock<>unlock), or at least provide some training on point #2 above to your operators. 73, Bill 73, Bill -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-SSB-modulation-tp5442219p5444072.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ 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
