Geoff said>For practical purposes S3 is probably close enough rather than "about S2 or 3" as shown in the manual. Or is it more complicated than that?
Geoff, lets do the math... S-9 is 50 uV at the antenna terminals by convention 1 uV is equal to 20 * log (1/50) = -33.98 dB below S-9 Say we define 6 dB per S-unit; let's not start a conventions war please. -33.98 dB divided by 6 dB/S-unit = -5.66 S-units from the S-9 50 uV signal reference. 9 S-units - 5.66 S-units = 3.34 S-units for a 1 uV signal using 6 dB per S-unit If we do the same math for 5 dB per S-unit we get: -33.98/5 = -6.8 S-units lower than S-9 or 1 uV = 2.2 S-units So it all depends on what convention you want to use. Selecting S-2 or S-3 gets you in the ball park. I am not positive but I think region 1 has a standard of 5 dB per S-unit; we don't have a standard here. Mike Scott - AE6WA Tarzana, CA (DM04 / near LA) NAQCC 3535 K3-100 #508 / KX1 #1311 ______________________________________________________________ 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
