Burger pager FM and other devs in shopping centre
Some times ago I noticed pager devices in burger restaurant. Specs found stated that it uses FM and works in frequencies 433.5 MHz and 433.85 MHz + also 462.750 MHz. RTL-SDR found two active frequencies 433.5 MHz and 433.85 MHz near restaurant. Freqs around 433.85 MHz proved to be ISM OOK devices. Pager device at 433.5 MHz seems to use POCSAG protocol. I used OnAir software to check whether it is standard pager tx and verified with SDR# Pocsag plugin. On Bluetooth sector I found some SBUS light controls. Probably by writing something in unknown service (UUID) values something can happen in lightning.