The gain of the sound card (the volume) can be changed by the driver so even if the K3 output doesn't change, the levels can still change.
I leave the software (driver) maxed out and the K3 Lin Out at 1 (almost off), but this risks swamping the card AGC so I use the K3 filters to limit what the sound card gets. 73, Rick wa6nhc Tiny iPhone 5 keypad, typos are inevitable > On May 18, 2014, at 12:42 PM, Larry Lopez <lawlop...@gmail.com> wrote: > > So I decide to give up and set the audio level right. > So I get the free for private use sound card oscilloscope > http://www.zeitnitz.de/Christian/scope_en. > > I picked this one because it was first when I goggled "sound card > oscilloscope". > > Very nice. > > But gee, there are 2 channels for the mike and a balance control. > One channel has "the signal" one channel has "chaff". > > So I set the balance control to kill the "chaff". > I then raise the volume in the K3 line out until it flat tops > and I back it off by 2. > > next step, get it to sample at 48000. > > obsessive, I am. > > > > > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-Hum-JT65-JT9-and-Vox-Revisited-tp7588936p7589252.html > Sent from the Elecraft mailing list archive at Nabble.com. > ______________________________________________________________ > 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 > Message delivered to happymooseph...@gmail.com ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
