Thanks all for your perspectives and the info on the audio chain is very informative and hadn’t really thought of that one. Simplistically I thought the audio on all three would be similar but now I know.
I have a K2/100 I built and maybe like all K2 owners have a fondness for it and would like to see it used more. I’m sitting in Houston airport waiting for my flight to Costa Rica with two KX3/PX3 combos which we will use for this contest but its a bundle of gear to tire together especially when you add laptops, KXPA100 and my home brew SO2R box that all in all makes the K2/100 attractive albeit minus the panadpter. Having a panadpter does help in a contest and retrofitting one to a K2 either via an IF tap or an external SDRPlay type solution probably enters the comparison at some level. Keep the comments coming! Paul Gacek W6PNG/M0SNA www.nomadic.blog > On Feb 27, 2019, at 2:19 PM, Jim Brown <j...@audiosystemsgroup.com> wrote: > >> On 2/27/2019 5:33 AM, Ignacy wrote: >> K3 has an excellent speech processor with equalization. K2 has compressor >> and sounds OK but not dramatic with good microphone. IMHO KX3 processor is >> not too efficient and even below K2. But KX3 has an equalizer allowing any >> mic to sound good. > > Yes. The K2 is compromised in several ways on SSB. First, the audio stage is > low on gain, so a mic doesn't hit the peak limiter hard enough to do much. > Second, the audio chain has a flat response, so low frequency components of > the voice waste transmitter power. I did a mod for mine, which W3FPR knows > about, that provides some low end rolloff and increases mic gain by about > 6dB. That helped, but it's nowhere near what the K3 and KX3 are capable of. > > Second, the narrow settings of the receive filter are produced by > stagger-tuning of the multi-stage CW filter, and their combined response > looks like a side view of the Rocky Mountains, so the accompanying phase > shift distorts the RX audio enough that using the narrow settings often > degrades speech intelligibility (that is, it makes voices HARDER to > understand). > > 73, Jim K9YC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
