principles projects CNMI-Guam old projects |
Power Amplifier softwareBugs: when disconnecting antenna, emergency shutdown then tries to go back at full-7 with alert 8; does not shut down from this alert and keep looping exposing amplifier to reflection when detecting power too large, kicks in -7 dB but keeps at that level without attempting to reset power to large value if error is cleared on input power as Jim suggested, 47 dBm is too tight for the safety trip. Recommend 48.5 dBm, we have plenty of cooling.
t_mode mode btm_pow standby ptt rf_in_on remarks 0 MODE_NONE 1 MODE_PWR_OFF 0 any any any off 2 MODE_STANDBY 1 0 any any power-saving 3 MODE_NOPTT 1 1 1 any dissipates 4 MODE_IDLEXMIT 1 1 0 0 dissipates 4 MODE_IDLEXMIT 1 1 0 1 full power allowed orderly transitions -> NOPTT <- OFF <-> STANDBY <-| |-> TRANSMIT -> IDLE <- forbidden transition without precise control of standby, ptt and rf_in_on OFF <-> TRANSMIT
0 boot mode 1 normal loop mode, transmit off, standby 2 normal loop mode, transmit on 3 error loop mode, trying to recover, otherwise switch to mode 4 4 cli mode |