Where does TXG VCE fit into this brew? Dick, WO1I, K3# 911
Quoting "Joe Subich, W4TV" <[email protected]>: > > > Now you have K3 users with no clue about how to set the TX eq and > > clipping level OPTIONS to get the IDENTICAL shape to their voices on a > > K3 as the other rigs. There actually is a clarity advantage to the > > K3's clipping method IF you know where to set all the options. > > How very true ... > > As K9YC (and others) has often advised, start by setting the first two > (LF) bands of the TX Eq to -16 and set the third (200 Hz) to - 9dB or > lower. Set the top three bands for at least 3 dB/octave (+3, +5, +6 > dB) boost ... that works well with a mic that has some natural high > frequency boost like the HC-4. For flatter mics (like the new HC-6 > or a CM-500) use more high frequency boost (between +6. +10, +12 dB > and +9, +16, +16 dB) to provide clarity. Since the human voice has > little energy in the 600 - 1200 Hz band, I like to add a bit of a > "notch" in the middle (-6dB at 800 Hz) ... cutting that band helps > to reduce background noise without impacting voice quality. > > With reasonable adjustments to enhance the frequencies important for > communications (vs. some "golden ear" belief in a bandwidth more > appropriate to classical music), reducing the power wasted in the > lower octaves that do not contribute to enunciation, and 10 to 15 dB > of clipping, the K3 can more than hold it own while remaining very > clean compared to the Yaecomwood rigs that drive the PA into clipping > in order to generate ALC! > > 73, > > ... Joe, W4TV > > > On 10/5/2010 2:23 PM, Guy Olinger K2AV wrote: >> A lot of the "punch" on older rigs is because the low end rolloff on >> TX for communications audio IS IN THE TX components and cannot be >> changed or "optioned" out. The K3, to satisfy all the vocal desirers >> of options, lets the user set everything, so that every body can have >> it his own way, from "I want my beautiful deep bass voice to be heard >> on ESSB", to contesters' "I just want my highs out there on the power >> peaks, I ONLY care about maximum QSO's, fidelity be damned". >> >> In the old analog rigs, all that stuff was wired in, one resistor and >> capacitor at a time, and the choice implied by the discrete components >> used was THE choice, PERIOD. I note that some of the rigs quoted >> earlier are in that collection. What was done in those was to favor a >> highs-emphasized TX audio, with as little distortion as possible. >> SOME clipping helped with average power. ESSB advocates should note >> that NONE of those emphasized the bass, unless someone went in and >> monkeyed with the discrete components, or put a banded preamp between >> the mic and the rig. >> >> What that state of affairs did was ENFORCE a defacto communications >> audio default, very soft on bass and hard on highs. >> >> Now you have K3 users with no clue about how to set the TX eq and >> clipping level OPTIONS to get the IDENTICAL shape to their voices on a >> K3 as the other rigs. There actually is a clarity advantage to the >> K3's clipping method IF you know where to set all the options. >> >> The problem is that in the bright new digital world, with options to >> satisfy every conceivable preference, ONE HAS TO KNOW HOW TO SET THE >> OPTIONS AND LEVELS TO GET WHAT HE WANTS. Add that to NOBODY EVER >> WANTS TO READ THE MANUAL. (I, personally am no better than anyone else >> here, I HATE reading manuals.) With the combo you get complaints that >> "My K3 is broken" because the user doesn't know that's an option and >> he has to set it his way in that menu. Likely perceived awful and >> confusing, because to understand the menu you have to read the manual. >> And there are so many optional behaviors that keeping up the manual >> is a real piece of work, and requires the most talented of technical >> writers to explain it in a straight-forward effective manner. >> >> This is not a peculiarity with a K3. N1MM has that problem because of >> the huge number of options, as does all the MicroHam stuff, which >> serve a very wide audience IF the users understand the options. I >> pretty much suffered brain damage learning MM logger. Microham was >> better because I had W4TV. K3 was easier yet because of the reflector. >> Flexibility generates confused digital options newbies all over the >> place in all kinds of pursuits. The universal curse of the age of >> digital options freedom. >> >> These days RTFM is really the only way out. Unless someone who has >> the time, inclination, and the sharp knowledge of all the options, >> sets up a utility which sets a spectrum of options based upon older >> rigs. >> >> Since the version D DSP board, this actually seems possible. Once you >> learn all the diddles, the K3 is marvelous. I have its RX sounding >> like my 75A3, IF I use a good speaker. ALL my computer speakers turn >> out to be crap beside my old-time Acoustic Research bookshelf speaker. >> If I run my 75A3 to the computer speakers, the 75A3 sounds like crap. >> Of course the sonorous old AR 8 ohm needs a 10 watt audio stage or an >> amp to drive it because it is so brutally inefficient. >> ______________________________________________________________ >> 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 > ______________________________________________________________ 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
