Here is the log. I am running this on the raspberry Pi 4b 8 gigs of ram and the latest raspbian os. hopefully someone has some insight or has similar issues
Mar 8 15:34:04 raspberrypi systemd[1]: Starting LSB: weewx weather system...
Mar 8 15:34:05 raspberrypi weewx[15172] INFO __main__: Initializing weewx version 4.4.0
Mar 8 15:34:05 raspberrypi weewx[15172] INFO __main__: Using Python 3.7.3 (default, Jul 25 2020, 13:03:44) #012[GCC 8.3.0]
Mar 8 15:34:05 raspberrypi weewx[15172] INFO __main__: Platform Linux-5.10.17-v7l+-armv7l-with-debian-10.8
Mar 8 15:34:05 raspberrypi weewx[15172] INFO __main__: Locale is 'en_US.UTF-8'
Mar 8 15:34:05 raspberrypi weewx[15172] INFO __main__: PID file is /var/run/weewx.pid
Mar 8 15:34:05 raspberrypi weewx[15176] INFO __main__: Using configuration file /etc/weewx/weewx.conf
Mar 8 15:34:05 raspberrypi weewx[15176] INFO __main__: Debug is 0
Mar 8 15:34:05 raspberrypi weewx[15176] INFO weewx.engine: Loading station type SDR (user.sdr)
Mar 8 15:34:05 raspberrypi weewx[15160]: Starting weewx weather system: weewx.
Mar 8 15:34:05 raspberrypi systemd[1]: Started LSB: weewx weather system.
Mar 8 15:34:05 raspberrypi weewx[15176] INFO user.sdr: driver version is 0.78
Mar 8 15:34:05 raspberrypi weewx[15176] INFO user.sdr: sensor map is {}
Mar 8 15:34:05 raspberrypi weewx[15176] INFO user.sdr: deltas is {'rain': 'rain_total', 'strikes': 'strikes_total'}
Mar 8 15:34:05 raspberrypi weewx[15176] INFO user.sdr: startup process 'rtl_433 -M utc -F json'
Mar 8 15:34:05 raspberrypi weewx[15176] ERROR weewx.engine: Import of driver failed: failed to start process 'rtl_433 -M utc -F json': [Errno 2] No such file or directory: 'rtl_433': 'rtl_433' (<class 'weewx.WeeWxIOError'>)
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** Traceback (most recent call last):
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** File "/usr/share/weewx/user/sdr.py", line 198, in startup
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** stderr=subprocess.PIPE)
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** File "/usr/lib/python3.7/subprocess.py", line 775, in __init__
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** restore_signals, start_new_session)
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** File "/usr/lib/python3.7/subprocess.py", line 1522, in _execute_child
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** raise child_exception_type(errno_num, err_msg, err_filename)
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** FileNotFoundError: [Errno 2] No such file or directory: 'rtl_433': 'rtl_433'
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: ****
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** During handling of the above exception, another exception occurred:
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: ****
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** Traceback (most recent call last):
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** File "/usr/share/weewx/weewx/engine.py", line 119, in setupStation
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** self.console = loader_function(config_dict, self)
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** File "/usr/share/weewx/user/sdr.py", line 147, in loader
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** return SDRDriver(**config_dict[DRIVER_NAME])
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** File "/usr/share/weewx/user/sdr.py", line 2674, in __init__
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** self._mgr.startup(cmd, path, ld_library_path)
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** File "/usr/share/weewx/user/sdr.py", line 207, in startup
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** (cmd, e))
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL weewx.engine: **** weewx.WeeWxIOError: failed to start process 'rtl_433 -M utc -F json': [Errno 2] No such file or directory: 'rtl_433': 'rtl_433'
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL __main__: Unable to load driver: failed to start process 'rtl_433 -M utc -F json': [Errno 2] No such file or directory: 'rtl_433': 'rtl_433'
Mar 8 15:34:05 raspberrypi weewx[15176] CRITICAL __main__: **** Exiting...