ESSB---Folks, if you want to be a broadcaster with high fidelity, then use AM. SSB is for COMMUNICATION of information and as such making it a fidelity race will occupy more bandwidth than is necessary to communicate. The bands are already crowded, Imagine everyone one in a contest with 1500 watts of ESSB with 4KHZ bandwidth. What a waste of available spectrum. As long as I do not sound like some woke disney donald duck character and have clear audio at 2.3khz, I am good to go and freely give up the 1.7khz to another station's bandwidth.
73, Morgan NJ8M BS + MS + $2.98 = COFFEE Real Life Experience = Priceless, says the man who set his back yard on fire with a breadboard tuner loading a 160 meter inverted L with 1000 watts. LOL On Tue, Apr 5, 2022 at 10:29 PM <[email protected]> wrote: > Hi All, > > > > Just received a K4D from a friend. I have it connected and just getting > used > to the radio. > > > > We operate ESSB (4 kHz LSB) on the lower end of 80 meters where there is > ample room without causing interference. When you rag chew for several > hours > it is much more pleasing to listen to. > > > > I upgraded the radio to R29 beta and set TX to ESSB and TX BW to 4 kHz. > First thing I noticed is the low frequency rolloff point is fixed and not > adjustable. The TX bandwidth seems to use the same low frequency cutoff. > > Second thing I noticed is the CESSB compressor seems to be programmed in > both ESSB and normal TX mode as a mid band compressor, boosting the > midrange, which then makes the audio sound very flat. This happens as soon > as compression is 1 or higher. > > > > This is fine for normal SSB TX to add punch and help crack pileups but in > ESSB mode it should affect the complete TX passband. I guess I have gotten > used to a couple of other brand SDRs that do use CESSB and don't attenuate > the lows and highs when engaged. > > > > I'd like a feature request that the CESSB compression work over the whole > range of TX audio in ESSB mode and also have the low frequency and high > frequency cutoffs on TX in ESSB be adjustable, just like the RX filters > are. > The CESSB implementation for normal SSB is fine. > > > > 73 > > Dave wo2x > > > > ______________________________________________________________ > 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] > ______________________________________________________________ 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]
