User's Manual
Table Of Contents
- Introduction
- Safety Information
- Operation
- Configuration
- Protocols
- Serial Point to Point Operation
- Input Handling
- Output Handling
- WTE Output Control Protocol
- Store Forward Operation
- Installation
- MReX Firmware Upgrade
- Antenna
- Disclaimer
- Manufacturing marking and labels
- Maintenance
- Product End Of Life
- Product Warranty
- Specification
MReX Transceiver User Manual v1.92 Firmware
*TX_PREAMBLE
*TX_PREAMBLE set the preamble length in multiples of 32 bits.
Short preambles allows the messages to be transmitted quickly.
Long preambles are typically used in conjunction with a matching receiver to save battery power
when the receivers is in deep sleep mode.
The POCSAG standard uses a setting of 18 (576 bits). This very long preamble means that paging
receivers need only to wake once per second (at 512 baud) in order to check for an incoming mes-
sage. If the receiver is always powered and receiving, then much shorter preambles can be used,
and in some cases halve the channel activity.
Typical usage:
*TX_PREAMBLE=18<CR>
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