POCSAG Tx - portapack-mayhem/mayhem-firmware GitHub Wiki

Overview

Introduction

This application allows you to transmit simple messages using the POCSAG protocol with the PortaPack running Mayhem firmware.

It is intended for testing, experimentation, and educational use.

Message Controls

These settings define the content and format of the POCSAG message:

• Bitrate
  Select the transmission bitrate:

  • 512 bps
  • 1200 bps
  • 2400 bps

• Address
  Target pager/unit address.

• Type
  Message type:

  • Address only
  • Numeric only
  • Alphanumeric

• Function
  Function code associated with the message:

  • A
  • B
  • C
  • D

• Phase
  Transmission phase:

  • P
  • N

• Message
  The message payload to transmit (numeric or alphanumeric, depending on the selected type).

Transmit Controls (Lower Bar)

First Line

• Frequency
  Transmission frequency.

• Frequency Step
  Step size used when adjusting the frequency.

• Channel Bandwidth
  RF bandwidth used for transmission.

Second Line

• Gain
  TX gain level.

• AMP
  Enable or disable the RF amplifier:

  • 1 = Enabled
  • 0 = Disabled

Transmission

Press the large START button to begin transmitting the configured POCSAG message.