On Sat, Mar 27, 2010 at 9:51 PM, Dudley Hurry <jhu...@austin.rr.com> wrote: > Drax, > > Best not to get into the calibration menus unless you know what you are > doing and really need to. Check your audio and AGC-T gain levels, they > both have an effect on the audio level going to VAC. You usually do not > need to run the AGC-T gain past 70 or 80 .
Dudley, When operating digital modes I set the AGC-T differently than I do for Phone or CW, i.e. "ear" modes. With modes where I am using my ears I set AGC-T to produce about a 10dB reduction in the noise. That causes even a relatively weak signal to pop out of the noise. When doing that I usually end up with AGC-T set in the 70-80 range. When running digital modes I do not want the gain of the receiver reduced for noise given that sometimes the signal I want is below the apparent noise floor. In that case I set AGC-T too just start to reduce the noise level and then increase it just a skosh to where the AGC "knee" is right at the noise floor. In that case I find that my AGC-T value tends to run 90-100, depending on the noise level on the band. Since this setting is fatiguing to the ear, I then mute the speaker output and do everything visually using the panafall display. -- 73 de Brian, WB6RQN/J79BPL _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
