ZUMspot/MMDVM_HS v1.4.12
Release notes:
- Frequency restrictions to avoid satellite interference. Please avoid the following ranges: 145.8-146.0 MHz and 435-438 MHz, otherwise firmware will not start. Please see: http://www.arrl.org/news/digital-mobile-radio-hotspots-may-be-interfering-with-satellite-uplinks-amsat-reports
- Fix RSSI bug in duplex mode
- P25 RX logic rewrite
- Enable debug messages for simplex boards
- Add new Interrupt Counter Test Mode (requires MMDVMCal >= 20181104). Useful for board diagnostics (TCXO, ADF7021 connections, etc).
- Makefile option for USB firmware without bootloader (only custom compilation)
- Minor bug fixes