Keyboard shortcuts

Main window actions:

 Ctrl+D         Start/stop DSP
 Ctrl+L         Load settings from a file
 Ctrl+S         Save current settings to a file
 Ctrl+Shift+B   Bookmark the current frequency and mode
 Ctrl+I         Open I/Q recorder dialog
 Ctrl+W         Save waterfall as an image
 Ctrl+C         Open DX cluster dialog
 F11            Toggle full screen mode
 F              Set focus to the frequency controller
 Z              Zero frequency offset
 Delete         Clear waterfall
 Ctrl+Q         Quit the program

Receiver modes:

 !              Demod off
 I              Raw I/Q
 A              AM
 Shift+A        AM sync
 N              NFM
 W              WFM mono
 Shift+W        WFM stereo
 O              WFM oirt
 S              LSB  (memo: lower SSB)
 Shift+S        USB  (memo: upper SSB)
 C              CW-L (memo: lower CW)
 Shift+C        CW-U (memo: upper CW)

Squelch:

 `              Reset squelch
 ~              Auto squelch

Filter width:

 <              Narrow
 .              Normal
 >              Wide

Audio functions:

 R              Start/stop recording
 M              Toggle mute
 -              Decrease gain by 1 dB
 +              Increase gain by 1 dB