Land Mobile Radio Analyzer and Coverage Measurement Guide : PTC-ACSES Analyzer (Option 731)
 
PTC-ACSES Analyzer (Option 731)
 
Introduction
Setup Procedure
Start the PTC-ACSES Mode
Direct Connection to the Transmitter
Over the Air (OTA) Analysis Setup
Using the Signal Generator for Receiver or Repeater Analysis
PTC-ACSES Analyzer Graphs
Constellation
Spectrum
Eye Diagram
Summary Table
Message Decode Table
Payload Table
PTC-ACSES Analyzer Main Menus
Frequency Menu
Signal Standard Menu
Amplitude Menu
Scale Menu
Setup Menu
Trigger Menu
Decode Menu
Measurement Menu
PTC-ACSES Analyzer
PTC-ACSES Coverage
PTC-ACSES PTC Receiver Tester
Sweep Menu
Trace Menu
Limit Menu
Other Menus
Introduction
The PTC-ACSES Analyzer option provides a method to verify the operation of ACSES Positive Train Control (PTC) systems. PTC-ACSES is an integrated communication and information system for controlling train movements. Option 731 includes the ability to display constellation, spectrum, and eye-diagram graphs. In addition, a summary table displays numeric values of received power or burst power, PEP (Peak Envelope Power), frequency error, EVM (Error Vector Magnitude), BER (Bit Error Rate), and phase and magnitude error.
BER is a comparison against standard PTC test patterns and is calculated based on forward error correction (FEC).
The LMR Master will analyze input signal strengths from +33 dBm (2.0 watts) down to levels approaching the sensitivity of PTC radios, automatically adjusting the input sensitivity based on input levels.
For information on coverage, see LMR Coverage Mapping.