The Agilent/Keysight 3779D Primary Multiplex Analyzer performs detailed testing of digital transmission systems, particularly PCM (Pulse Code Modulation) and FDM (Frequency Division Multiplex) networks. This instrument measures signal quality, error performance, and synchronization to validate telecommunications network reliability. It supports installation, maintenance, and troubleshooting operations across multiplex systems.
Technical Specifications
The standard configuration delivers 20 analog-to-analog (A-A) measurements and end-to-end (E-E) measurements on PCM or FDM multiplex systems. Option 001 extends the instrument to include 15 analog-digital (A-D) measurements, 15 digital-analog (D-A) measurements, and 3 digital-digital (D-D) measurements, specifically for 1544 kb/s PCM primary multiplex systems or single 3-channel PCM codecs. PCM measurement capability extends through in-band and out-of-band frequencies up to 40 kHz.
– Key Features
• Pre-programmed measurement routines with user-modifiable parameters via integrated keyboard
• Storage of up to four measurement sequences, each containing up to seventeen measurements
• Non-volatile sequence memory—retained when powered off
• Keyboard lock using four-digit code for security
• Voice frequency (VF) interface standard
• Control of one or more HP 3777A Channel Selectors for testing up to 256 voice channels
• Direct printer and channel selector control for automated reporting
– Typical Applications
The 3779D addresses field installation verification, preventive maintenance testing, and fault isolation within PCM and FDM transmission networks. Its channel selector integration enables selective voice-channel analysis without full multiplex capture.
– Compatibility & Integration
Fully compatible with HP 3777A Channel Selectors for extended measurement across distributed voice channels.
