The Boonton 1121 Audio Analyzer is a precision instrument designed for comprehensive audio signal analysis, offering a wide range of measurement capabilities essential for engineers, system integrators, and laboratories. This versatile analyzer is suitable for applications requiring accurate evaluation of audio equipment performance, encompassing frequency response, distortion, noise, and signal-to-noise ratio (SNR) measurements. Its built-in low-distortion audio source makes it ideal for stimulus-response testing of systems, amplifiers, receivers, and individual components.
### Technical Specifications
* **Frequency Measurement:**
* **Range:** 5 Hz to 200 kHz
* **Resolution:**
* 0.001 Hz: 5.000 Hz to 199.999 Hz
* 0.01 Hz: 200.00 Hz to 1999.99 Hz
* 0.1 Hz: 2.0000 kHz to 19.9999 kHz
* 1.0 Hz: 20.000 kHz to 199.999 kHz
* **Accuracy:** Timebase accuracy + 1 count
* **Sensitivity:**
* 5.0 mV (Frequency mode)
* 50.0 mV (Distortion and SINAD modes)
* **Timebase Type:** 10 MHz TCXO
* **Timebase Accuracy:** ± 1 ppm/yr
* **AC Level Measurement:**
* **Full Scale Ranges:** 300.0 V, 30.00 V, 3.000 V, 300.0 mV, 30.00 mV, 3.000 mV, and 0.300 mV
* **Overrange:** 33% (except on 300 V range)
* **Accuracy:**
* ± 1%, 50 Hz to 50 kHz (1 mV to 300 V, 0.5% typ.)
* ± 2%, 20 Hz to 100 kHz (1 mV to 300 V, 1.0% typ.)
* ± 3%, 10 Hz to 100 kHz (1 mV to 300 V, 1.5% typ.)
* ± 4%, 10 Hz to 100 kHz (0.3 mV to 300 V, 2.0% typ.)
* **DC Level Measurement:**
* **Full Scale Ranges:** 300.0 V, 30.00 V, and 3.000 V
* **Overrange:** 33% (except on 300 V range)
* **Accuracy:** ± 1.0% or 6 mV, whichever is greater
* **Distortion Measurement:**
* **Fundamental Frequency Range:** 10 Hz to 100 kHz (usable to 140 kHz)
* **Resolution:**
* 0.00001% for < 0.11000% THD
* 0.0001% for < 1.1% THD
* 0.001% for < 11% THD
* 0.01% for < 100% THD
* **Display Range:** 0.00001% to 100.0% (-140.00 to 0.00 dB)
* **Accuracy:**
* ± 1 dB; 20 Hz to 20 kHz
* ± 2 dB; 10 Hz to 100 kHz
* **Typical Distortion Measurement:** Better than -90 dB (0.003%) between 20 Hz and 20 kHz* **Signal-to-Noise Ratio (SNR) & Distortion (SINAD) Measurement:**
* **Display Range:** 0.00 to 140.00 dB
* **Accuracy:** ± 1 dB
* **Input Voltage Range:** 50 mV to 300 V
* **Residual Noise:**
* (the higher of) 85 dB or 10 µV; 80 kHz BW
* 85 dB or 20 µV; 220 kHz BW
* 85 dB or 40 µV; 500 kHz BW* **Audio Filters:**
* 30 kHz Low Pass Filter: Accuracy ± 2 kHz, Rolloff: Third-order Butterworth; 60 dB/decade
* 80 kHz Low Pass Filter: Accuracy ± 4 kHz, Rolloff: Third-order Butterworth; 60 dB/decade
* 220 kHz Low Pass Filter: Accuracy ± 20 kHz, Rolloff: Third-order Butterworth; 60 dB/decade
* Optional Filters: -11 400 Hz High Pass Filter, -12 Psophometric (CCITT) Band Pass Filter, -13 CCIR Filter, -15 A Weighting Filter, -16 B Weighting Filter, -17 C Weighting Filter, -18 Audio Bandpass Filter, -19 C-Message Filter* **Built-in Audio Source:**
* **Frequency Range:** 10 Hz to 140 kHz
* **Resolution:**
* 0.001 Hz: 10.000 Hz to 199.999 Hz
* 0.01 Hz: 200.00 Hz to 1999.99 Hz
* 0.1 Hz: 2.0000 kHz to 19.9999 kHz
* 1.0 Hz: 20.000 kHz to 140.000 kHz
* **Accuracy:** 10 ppm + timebase accuracy + 1 count
* **Output Level Range (open circuit):** 0.01 mV to 16.0 Vrms
* **Output Impedance:** Selectable 50, 150, and 600 ohms
* **Output Level:** 16 volt rms output### Interfaces* **GPIB / IEEE-488 Interface:** Supported for automated control and data acquisition
* **Analyzer Input Type:** Balanced (full differential)
* **Analyzer Input Impedance:** 100 kOhms ± 1% and < 300 pF each side to ground in all measurement modes
* **Input Protection:** Hardware limited for excessive common mode levels; fuse protection against peak levels exceeding 425 V max### Physical Characteristics* **Dimensions:** 17.75 in (45.1 cm) wide, 5.85 in (14.9 cm) high, and 18 in (45.8 cm) deep### Memory and Operation* **Non-volatile Memory:** For instant recall of up to 99 complete front-panel setups
* **Measurement Speed:** Ten readings per second
* **Swept Measurements:** Internal control of source and analyzer allows for swept frequency or level measurements
* **Detection Methods:** True RMS average or quasi-peak detection for complex waveforms and noise### Why Choose Aumictech for Boonton 1121 Audio Analyzer?At Aumictech, we specialize in supplying high-end audio test and measurement equipment. Whether you need precise audio signal analysis, comprehensive performance evaluation, or reliable stimulus-response testing, our team ensures the Boonton 1121 Audio Analyzer delivers maximum performance for your application.
