Hi Joe, Looking at Spectra right out of the Phones output, I don't see where bands 1or 2 do all that much in lowering K3's bass.
Having the rig on SSB using the 2.7 Khz filter, the "Lo" on 0, I see no change on bands 1 and 2 when I set them to -16. What I am missing here? I have never seen or heard too much bass in the K3. I did a plot at 0 dB, one at -16 on band 1 and another one on -16 on band 2 if anyone would like to see them. 73 de w5jay/jay.. > >> Perhaps NR could also be improved with more low >> frequencies in the passband. > > Please NO! I already run RX Audio bands 1 and 2 at -16 dB to > eliminate excessive bass - no more bass, please! > > The hiss many seem to be complaining about is broadband noise > in the audio (speaker) and/or headphone amplifier. It is more > noticeable when driving low impedance loads (8/16 Ohm) due to > the relatively high gain (14 dB) of the speaker amplifier > and the high frequency boosting effect of the 33 pF capacitors > in parallel with the gain setting (feedback resistors). > > 73, > > ... Joe, W4TV > > > > >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Roy Morris >> Sent: Monday, April 06, 2009 2:01 PM >> To: [email protected] >> Subject: [Elecraft] K3 Hissy and Noisy Audio >> >> >> I concur with what has been said regarding the "hissy" audio. >> The receiver audio seems to be on the mid-range to high >> frequency side without enough low frequencies in the >> passband. Experiments with RX EQ apparently have not done >> anything to eliminate this hiss, but maybe the firmware can >> be adjusted to increase the low-end response of the receiver >> passband. If this doesn't work, maybe a component change is in order. >> >> I also think the noise reduction is too sharp in both SSB and >> CW. Perhaps NR could also be improved with more low >> frequencies in the passband. >> >> Roy Morris W4WFB >> K2 #2225 >> K3 #323 >> K3 #2810 >> ______________________________________________________________ >> 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
