![]() This tchnical note details how the POCSAG protocol works. POCSAG Overview (AN1452) by Adam Hickerson.Pagers analyze sequential batches of pages to see if any batch contains an address code word frame with its own cap code. Once they detect the preamble, they sync-up to the PCSAG message by detecting the embedded synch bits. POCSAG pages are transmitted in a batch structure, with a long pre-amble at the beginning of the message to allow pagers to periodically asynchronously wake up, and listen for a page. 512bps has the longest communication range, while 12 allow for more pages to be transmitted per second. There are three standard POCSAG data rates: 512, 1200, or 2400 bps. The POCSAG protocol was a major improvement over previous tone-based paging protocols, allowing for much longer pager battery life and many more subscribers per system. Pagers are radio small receivers that are activated when a properly message encoded is transmitted to them over a radio channel. POCSAG is a radio data transmission protocol used to transmit one-way messages to “pagers”. The POCSAG name comes from the UK, and stands for: Post Office Code Standardization Advisory Group which at one time controlled all telecommunications in Britain. Raveon is an expert in POCSAG technology, and has developed many products that implement POCSAG. For ultra-long range, low-data-rate applications, it can be a great protocol choice. The POCSAG protocol is still one of the most robust and reliable communicatin protocols ever invented. VHF MURS Band Data Radio / Telemetry Transceiver.M22 Miniature License Free Spread Spectrum Modem. ![]() ![]() M21 Data Radio Modems with a Myriad of IO options.RV-M55-E Ethernet Interface Radio Modem.Automating Pivot Irrigation with Raveon Data Radios.Wireless Utilities Management Solutions. ![]()
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