The Rohde & Schwarz UP300 is a dual-channel analog audio analyzer engineered for production, laboratory, and service environments. It performs comprehensive audio measurements from 10 Hz to 80 kHz and generates precision test signals across a compact form factor. The instrument delivers high signal quality with inherent distortion below −90 dB, making it suitable for integration into automatic production systems, bench-top deployment, or field service work.
Technical Specifications
Frequency range spans 10 Hz to 80 kHz. The UP300 measures RMS values (wideband), error limits, inherent distortion, difference frequency distortion (DFD), modulation distortion, total harmonic distortion, frequency response, level linearity, and harmonic distortion. Level measurement operates in RMS, peak, or quasi-peak modes. FFT analysis delivers high resolution up to 16,384 points with numerous window functions. Input impedance is 100 kΩ (inner/outer conductor to ground). Crosstalk attenuation exceeds 100 dB below 20 kHz with 600 Ω source impedance. Common-mode rejection reaches >80 dB at 50 Hz, >75 dB at 1 kHz (Vin 60 dB at 16 kHz (Vin < 3 V).
– Key Features
• Signal generation includes sinewave, two-tone, multitone, bursts, and noise in single- or dual-channel modes
• Filtering via weighting, third-octave, and octave filters with digital implementations at 32-bit floating-point accuracy
• Up to three filters can be combined for custom measurement configurations
• Generator output: 75 Ω impedance, unbalanced BNC connector (rear panel), 100 mV to 5 V input level range
• 5.4-inch TFT color display with 320 × 240 pixel resolution
• USB remote control interface
• Compact design permits rack installation in 19-inch enclosures; two units fit side-by-side due to slim profile
– Typical Applications
Analog audio measurement in production test, laboratory characterization, and service diagnostics across analog audio applications requiring distortion analysis, frequency response validation, and signal generation.
– Compatibility & Integration
Dual-channel analog inputs and outputs support flexible measurement configurations. USB interface enables remote control integration into automated test systems.
