Overview
The Motorola NLD6572A is a specialized tone squelch module designed for integration into Motorola radio systems and repeater stations. This module provides CTCSS (Continuous Tone-Coded Squelch System) decoding, commonly known as Private Line (PL) in Motorola applications, along with vibrasponder functionality. The NLD6572A enables selective audio squelch control based on sub-audible tone detection, allowing multiple user groups to share the same radio frequency without interference.
Key Features
- CTCSS/PL tone detection and decoding for selective squelch control
- Vibrasponder capability for tone-activated alerting
- Compact module design for easy integration into existing Motorola systems
- Reliable sub-audible tone filtering and discrimination
- Compatible with Motorola mobile and fixed radio stations
- Supports multi-frequency tone code compatibility
Technical Specifications
- Manufacturer: Motorola
- Part Number: NLD6572A
- Product Type: Tone Squelch Module
- Function: CTCSS/PL Decoder with Vibrasponder
- Audio Input: Discriminator audio from receiver
- Squelch Output: Logic-level squelch control signal
- Tone Detection Range: Industry-standard CTCSS frequencies (67.0–254.1 Hz)
- Unit Quantity: 1
Typical Applications
- Motorola mobile radio systems requiring tone-selective squelch
- Fixed-site repeater stations with multi-user frequency sharing
- Commercial two-way radio systems needing tone-based access control
- Link receivers in paging and dispatch systems
- System upgrades adding CTCSS capability to existing Motorola installations
Compatibility & Replacements
Compatible With
- Motorola MICOR mobile and fixed radio platforms
- Motorola Spectra repeater and base station systems
- Motorola receiver audio and squelch boards
- Standard CTCSS/PL tone frequencies used in land mobile radio
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or Motorola service documentation before ordering. The NLD6572A is a specialized module; cross-compatibility should be confirmed based on your specific radio platform and installation requirements.
Works With
- Motorola radio maintenance and alignment software
- Standard CTCSS/PL encoding and decoding systems
- Motorola repeater control and signaling equipment
- Discriminator audio outputs from Motorola receivers
