Overview
The Motorola NLE6931A is a dedicated tone squelch module designed for integration into Motorola radio systems. Motorola’s Private Line® (PL) technology works with CTCSS (Continuous Tone-Coded Squelch System), which uses sub-audible tones transmitted along with speech to allow multiple agencies to use the same radio frequency without hearing other transmissions on that frequency. The NLE6931A module handles the decoding and squelch control functions required for this standard, including vibrasponder alerting. This module provides clear, consistent audio control and selective squelch operation for professional radio communications in industrial, public safety, and business environments.
Key Features
- Dedicated tone squelch and CTCSS/PL decoder functionality
- 7-pin modular design for direct integration into Motorola radios
- Vibrasponder support for tone-based alerting
- Reliable sub-audible tone detection and squelch control
- Compact package for space-constrained radio platforms
- Proven compatibility with Motorola professional radio systems
Technical Specifications
- Package Type: 7-Pin Module
- Function: CTCSS/PL Tone Squelch Decoder
- Vibrasponder: Supported
- Application: Motorola Mobile & Portable Radios
- Tone Range: CTCSS standard frequencies (65–250 Hz)
Typical Applications
- Mobile and portable radio squelch control
- Two-way radio tone decoding
- Private Line (PL) tone-coded access systems
- Repeater and base station tone filtering
- Industrial and business radio communications
- Public safety radio systems with selective squelch
Compatibility & Replacements
Compatible With
- Motorola mobile radio systems
- Motorola portable radio platforms
- Motorola repeater and base station equipment
- Motorola radio modules and circuit card assemblies
- CTCSS/PL tone-coded radio systems
Replaces / Drop-In Replacement For
Verify specific replacement compatibility with your Motorola equipment documentation or system integrator before ordering. The NLE6931A may replace or interchange with other Motorola tone squelch modules depending on your radio platform and configuration.
Works With
- Motorola Professional Radio software and programming platforms
- CTCSS/PL standard tone frequencies
- Motorola vibrasponder and alerting systems
- Standard radio squelch circuitry and control systems
