Gary, K7EMF, caught an error in my paragraph below. I had used ‘dB’ when I meant ‘dBm’ (dB relative to 1 milliwatt). Now corrected.
73, Wayne N6KR > Such over-ranging is almost unheard of in the K3S, for multiple reasons. > First, we use very strong mixers and gain stages. Second, in many cases > there’s no need to turn the preamp on at all. (Example: the K3S’s preamp-off > sensitivity is typically -135 dBm, while the preamp-off sensitivity on a > typical direct-sampling SDR is -115 to -125 dBm.) The third reason for the > K3S’s strong-signal performance is its crystal roofing filters. These protect > the ADC from not only wide-spaced signals, but also from signals very close > by. As K3 and K3S owners will attest, you can have a huge signal just a few > hundred Hz away and not even know it’s there -- unless that station’s > transmit phase noise is blanketing the band anyway. (There’s no defense > against an unclean or clicky transmit signal.) ______________________________________________________________ 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 Message delivered to [email protected]
