Intro to Pagers - POCSAG with HackRF

In this video we look at how pagers and pager networks operate. Specifically this video focuses on the POCSAG protocol and uses a HackRF One with the PortaPack and the Havoc firmware to send POCSAG messages to an Apollo Gold pager. We will also use GQRX with an RTL-SDR to understand Frequency Shift Keying (FSK).