Revision (v1.2.1):
- Improved Soundboard app (thanks @ITAxReal)
- Radiosonde vaisala now decodes temperature and humidity (thanks @euquiq)
- Fixes on the freq manager (thanks @rascafr)
- Improved Microphone app now on the main menu (thanks @euquiq)
- Backlight timer fix (thanks @euquiq)
- Extended waterfall in AM/NFM Audio mode (thanks @strijar)
- Updated CB channel list (thanks @mcules)
- Fixes related to mic tx rfgain and siggen amp (thanks @dqs105)