readme.txt

Alphanumeric messages are encoded in POCSAG format and send to the serial port of a computer. The mo

We have available many communication technologies to communicate with each other. Every technology has its advantages and disadvantages. One of the popular technologies that has been used for many years, in many industries, is the pager. The pager uses a protocol named POCSAG or Post Office Code Standardization Advisory Group code. If you search Google for POCSAG Encoder/Decoder, you will find many devices from various companies. This article is an effort for doing the same task using only software code. For this purpose, I used my previous article, BCH 21,31, for implementing a BCH Error Correction Code that is part of the POCSAG protocol that we are going to see in the following sections.

I grabbed most of the information about the POCSAG protocol from Brad Dye's Paging Information Resource website. The website has many useful information for various wireless technologies including pager.

I also wrote the code for sending the encoded message to the end user using a special modem. The modem connects to the serial port of a computer and sends the message on the air through a transmitter.