Kevin / Steve / RED : Thanks for the suggestions. After checking all of your suggestions without success I convinced myself that I must have missed something in checking the config files for correct variable values. The config files were correct ... except for "duplex" ... which was set for half instead of full duplex. Sigh. (I sure hope confession really is good for the soul.) ...STeve - KF5VH On 10/8/2016 7:43 PM, Kevin Custer wrote:
D. usbradio_tune_usb42316.conf ... I noted the new "fever=1" (and have tried it at values 0 and 1) but have found no documentation for fever.
STeve,
FEVER fixes a bug in the receiver frontend FIR code where the history buffer is shifted to add a new sample. Because FEVER *could* change audio levels for folks that may have precisely adjusted them (in ACID), FEVER is only turned on IF you do a "radio tune rxnoise" re-calibration. FEVER was instated in ACID in January 2015, and therefore ported to DIAL by default. As far as I'm aware, every install of DIAL incorporates FEVER, and as long as you do a radio calibration, it eliminates this issue.
FEVER stands for Front End VERsion, and is the work of Jim Dixon - WB6NIL, where he incorporates the bug fix provided by Jeff DePolo - WN3A. Jim made it so that the "tune" file for the chan_usbradio channel saves a "front-end version" and now, if you do the "front end tuning" using the "radio tune rxnoise" command, it will set the mode for the new fixed version, and save it that way. In other words, any new installations (since January 2015) will auto-magically be running the new, fixed version, and any old installations will not be effected unless they re-do the tuning, in which case it is likely to sound better.
Hope this helps... Kevin - W3KKC