Rohde and Schwarz UAF

The Rohde & Schwarz UAF is a precision video analyzer for development, testing, and optimization of video systems in studio and production environments. It measures 25 video and test line parameters with high accuracy, including linear and nonlinear distortions such as 2T K rating, frequency response, and hum. The instrument supports Y/C component signal analysis for video recorder quality control and features freely selectable test line positioning across the picture area and field blanking interval. Results are obtained within seconds, with variable integration times (less than 1 s, 2.5 s, 5 s, or 10 s) to accommodate noisy signals and long transmission links.

– Technical Specifications

• Measured Parameters: 25 video and test line parameters
• Distortion Analysis: Linear and nonlinear distortions including 2T K rating, frequency response, and hum
• Integration Time: Less than 1 s, 2.5 s, 5 s, or 10 s (selectable)
• Measurement Accuracy: ±2 digits in difference and reference measurement modes
• Test Line Positioning: Freely selectable over entire picture area and field blanking interval
• Test Configuration Storage: Up to eight configurations
• Signal Input: 3 video inputs, 75 Ω loopthrough filters; configurable as 3 × CCVS or 1 × Y/C and 1 × CCVS
• Input Level: 1 V pp ±6 dB
• Synchronization: Internal or from one of three inputs; sync pulse level 300 mV ±6 dB
• Power Supply: 100/120/220/240 V ±10%, 47 Hz to 63 Hz, 115 VA, safety class 1

– Key Features

• Limit monitoring for single parameters, parameter groups, or all parameters with two freely adjustable upper and lower limits per mode
• Blinking LED indication of limit value violations with switchable acoustic alarm
• Error logging capability
• Direct key access with clear display interface
• Compact form factor combining analog signal conditioning with digital result processing
• Support for test signals (CCIR 17, 10T pulse, 20T pulse) and test line configurations (e.g., CCIR 17 in line 19)
• Configurable noise voltage measurement with filter settings

– Typical Applications

• Video system development and optimization
• Studio-quality signal analysis and compliance verification
• Video recorder production and quality control
• Transmission link signal characterization