The Digital Psophometer 1072 Is A Portable Measurement Instrument Designed For Testing And Evaluating Telecommunication Equipment And Transmission Lines. It Combines A Compact Field-oriented Design With Sensitive And Accurate Measurement Capabilities, Making It Suitable For Telecommunications Testing Applications Where Reliable Noise And Signal Measurements Are Required.

The Instrument Incorporates A psophometric Filter Based On CCITT Recommendations, Providing The Required Frequency Response Characteristics For Weighted Measurements. It Also Supports Unweighted Measurements, Allowing Users To Evaluate Different Characteristics Of Telecommunications Signals And Transmission Systems.

Accurate Noise And Level Measurements

The Digital Psophometer 1072 Is Designed For The Measurement Of metallic Noise, Longitudinal Noise, Signal Level And Transmission Loss Over A Transmission Line. Its Measuring Range Extends From -90 DBm To 0 DBm, While The Minimum Measurable Value Is Specified As 10 μV (-98 DBm).

CCITT-Based Psophometric Measurement

For Weighted Measurements, The Instrument Provides A Frequency Response Based On CCITT Weighting Recommendations For Telephone Circuits. The Weighted Frequency Range Is Specified From 15 Hz To 6 KHz, While The Unweighted Frequency Range Extends From 15 Hz To 10 KHz.

Built-In Calibration Facility

The Unit Includes A Highly Stable Internal Calibration Signal That Allows Users To Perform Calibration Checks. This Feature Helps Verify The Measurement Condition Of The Instrument Before Carrying Out Testing Activities.

Recorder Output

A recorder Output Is Provided At The Rear Panel. This Allows The Measured Response To Be Connected To A Suitable Recorder For Plotting Response Curves, Making It Useful For Detailed Analysis And Documentation Of Measurement Results.

Flexible Input Configuration

The Digital Psophometer 1072 Provides Selectable Input Impedance Options Of 600 Ohms, 1120 Ohms Balanced, And Hi. This Allows The Instrument To Accommodate Different Testing And Telecommunications Measurement Requirements.

Portable Field Operation

The Instrument Is Designed For Field Application And Can Operate From Multiple Power Sources. It Supports 230V AC ±10%, An Internal Rechargeable 6V Battery, And External Battery Operation. An Optional 115V AC ±10% Configuration Is Also Specified In The Product Document.

LCD Display And Battery Monitoring

The Digital Psophometer 1072 Uses A 3½-digit LCD Display For Measurement Indication And Includes A Low-battery Indication Facility To Help Monitor The Battery Condition During Operation.

Power Hum Measurement

A Built-in Power Hum Measurement Facility Is Included, Providing An Additional Function For Telecommunications Testing Applications.

Key Features

• Compact And Portable Design For Field Applications
• Highly Sensitive And Accurate Measurements
• Weighted And Flat Frequency Response Based On CCITT Recommendations
• Built-in Stable Calibration Signal
• Metallic Noise Measurement
• Longitudinal Noise Measurement
• Level And Transmission-loss Measurement
• Power Hum Measurement Facility
• Recorder Output For Response-curve Plotting
• Selectable 600 Ω, 1120 Ω Balanced And Hi Input Impedance
• 3½-digit LCD Display
• Low-battery Indication
• Mains, Internal Battery And External 6V DC Operation