The NoiseCom PNG7112 is a programmable noise generator for RF and microwave applications, delivering calibrated additive white Gaussian noise (AWGN) with precise control over output power. It combines internal noise generation with user-supplied signals via a low-distortion summing path, enabling accurate signal-to-noise ratio (SNR), carrier-to-noise ratio (CNR), and bit error rate (BER) testing across communication, radar, and electronic warfare systems. The instrument’s 18 dB minimum crest factor supports reliable BER characterization even at high signal-to-noise ratios.
Technical Specifications
• Frequency Range: 10 MHz to 2 GHz
• Noise Type: Additive White Gaussian Noise (AWGN)
• Output Noise Power: +3 dBm
• Noise Attenuator: 0 to 63 dB range with 0.25 dB step size
• Attenuator Accuracy (0 dB setting):
– ±0.2 dB or 0.5% (1 MHz to 500 MHz)
– ±0.2 dB or 1% (500 MHz to 1.0 GHz)
– ±0.3 dB or 2% (1 GHz to 2 GHz)
• Signal Path Gain: Nominal 0 dB with very low amplitude and phase ripple
• Crest Factor: 18 dB minimum
• Output Impedance: 75 Ohms
• Connectors: BNC female (input/output)
• Power Supply: 115 VAC 60 Hz; 230 VAC 50 Hz optional
• Operating Temperature: −10°C to +60°C
• Dimensions: 17 in. W × 5.25 in. H × 12.5 in. D
– Key Features
• Programmable noise generation with front panel keypad, IEEE-488 bus, or software control
• Microprocessor-controlled with LCD display
• Summing input for combining external signals with internal noise source
• Low-distortion signal path minimizes degradation during signal summing
• Configurable with up to five band-limited noise sources for frequency-specific applications
• Bench mounting with front panel handles and fold-down feet; 19-inch rack mounting brackets included
– Typical Applications
• SNR and CNR ratio testing
• Bit error rate (BER) characterization
• Communication system performance validation
• Radar and electronic warfare equipment testing
– Compatibility & Integration
Remote control via IEEE-488 bus or automatic program control. Lab Windows drivers available from National Instruments. Customization options available for specific application requirements.
