Release notes for the New Packet Radio modem V02/V03 firmware Version 2019_09_15 (15th September 2019) STABLE VERSION. Please report bugs. What's new in this version? (compared to 2019_08_17) * Switching to protocol v2.0. All modulation parameter changed, in order to improve greatly the RF sensitivity. Frequency deviation is doubled (GFSK) regarding previously (GMSK). WARNING : No backward compatibility with previous firmwares! WARNING : RF bandwidth has changed. Check new documentation! * Frequency setting is now with 1kHz resolution, instead of previously 40kHz resolution. * New firmware (dedicated '.bin') for 2 meter band (144 - 148MHz). Use appropriate RF4463F30 modules, "150MHz" versions. * New feature "frequency shift", currently useless, but can be tested. It only shifts between RX and TX frequency. Will be used later for true "FDD" (Frequency Division Duplex), with 2 modems (one for RX, the other for TX) and RF duplexer at Master side. * new command "version" displays the version of the firmware. Bug fixes and features inherited from previous versions * RSSI is now displayed in "dBm" * Frequency range extended to 420-450MHz instead of previously 430-440MHz, in order to fit IARU region 2 and 3 band-plans. * 4 new modulations, for low Symbol Rates (56kS/s and 135kS/s): 11, 12, 20, 21. * Temperature measurement, and SI4463 re-calibration if delta temp > 15°C. * Bug fixes for all known telnet bugs : - Telnet behaviour was wrong with some telnet clients like Putty. - Telnet feature was forever lost if one telnet session was opened and when an IP configuration change is triggered (during radio connection or via manual configuration change). * A manual IP configuration modification is not anymore taken into account immediately, and therefore does not trigger an IP disconnection anymore. (you need to save and reboot the modem in order to take modifications into account). * Bug fix for the LED RX bug (LED RX could remain ON after "radio off" command) * Bug fix for bad initialization of radio module. If bad initialization detected, the modem will reboot after 10 seconds, for a new try. Refer to advanced user guide. Known issues * Modulation 24 : with several clients, clients can sometimes freeze, or loose reception during several seconds. Conditions undetermined. * Radio OFF and ON again behaves very badly. If you need to make "radio on" after a "radio off", prefer using "reboot". Same problem with some live modification of radio parameters.