Flat, except I turned the first one down a few notches, which doesn't really do much in my case because both the microphone and mixer that I use (when they're actually connected) roll off below 150 and 80 Hz respectively. It had previously been suggested to me that rolling off low frequency cruft is a good idea for AM and SSB.
Nick On Fri, 26 Apr 2019 at 15:57, Bob McGraw K4TAX <[email protected]> wrote: > I recall commenting earlier. What TX EQ values are being used for AM. ? > > Bob, K4TAX > > > Sent from my iPhone > > > On Apr 26, 2019, at 5:48 PM, Nicklas Johnson <[email protected]> wrote: > > > > My desk in this case sits adjacent a wall, and there's only a shower on > the > > other side of that wall. I did turn off everything in the vicinity of > the > > desk and all the lights in the room (I've in fact heard a very similar > hum > > from the switching power supply for my mixer, and my first thought was it > > was this that was being picked up), but I didn't turn off the computer on > > the other side of the room. In this case it will be easier to move the > rig > > outdoors with a battery than it will be to turn that computer off for the > > moment. It would have to be an impressively/obnoxiously strong magnetic > > field from that side of the room to influence the transformers inside the > > rig 8 feet away, but it's worth trying and simple enough to rule it out. > > > > Nick > > > >> On Fri, 26 Apr 2019 at 14:51, Don Wilhelm <[email protected]> > wrote: > >> > >> In addition to operating from a battery isolated from the solar system, > >> I would recommend that you do a quick test - remove all cables from the > >> K3S except the power cable and a coax to a dummy load. Power down all > >> power supplies in your station, including any desk lamps. > >> Go into Transmit by tapping the XMIT button. > >> Is the hum still present? If not, then start connecting things to your > >> K3S one at a time, doing the same test after each thing connected. > >> > >> Of course, if the hum is present with nothing connected, contact > >> [email protected] - but I cannot imagine a hum with harmonics of 60 > >> Hz being induced if you take away all the 60 Hz operated sources in the > >> area. > >> > >> 73, > >> Don W3FPR > >> > >> -- > > *N6OL* > > Saying something doesn't make it true. Belief in something doesn't make > it > > real. And if you have to lie to support a position, that position is not > > worth supporting. > > ______________________________________________________________ > > 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 > > > > -- *N6OL* Saying something doesn't make it true. Belief in something doesn't make it real. And if you have to lie to support a position, that position is not worth supporting. ______________________________________________________________ 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
