SPA Series Spectrum Analyzer

The SPA Series Spectrum Analyzer, also referred to as Signal & Spectrum Analyzer, Frequency Analyzer, or RF Spectrum Analyzer, accurately measures the magnitude of an input signal against frequency across the instrument’s full range. Its primary function is to assess the power spectrum of both known and unknown signals.

Specifications:

• Model: SPA-1P5G, SPA-3P6G, SPA-7P5G
• Frequency Range: 9kHz-1.5GHz, 9kHz-3.6GHz, 9kHz-7.5GHz
• Resolution: 1Hz
• Frequency Span Range: 0 Hz, 100 Hz to maximum device frequency
• Accuracy: ± span/(swept points -1)
• Internal Reference Frequency: 10.000000 MHz
• Reference Frequency Accuracy: ±[(days from last calibration × frequency aging rate) + temperature stability + initial accuracy]
• Temperature Stability: <2.5ppm (15℃ to 35℃), <1ppm (15℃ to 35℃)
• Aging Rate: <1ppm/year
• Readout Marker Frequency Resolution: span / (number of sweep points -1)
• Uncertainty: ±(frequency indication × frequency reference uncertainty +1%× span +10%× resolution bandwidth + Marker Frequency Resolution)
• Frequency Counter Resolution: 1 Hz, 10 Hz, 100 Hz, 1 kHz
• Accuracy: ±(marker frequency × frequency reference uncertainty + counter resolution)
• Bandwidth Resolution: Bandwidth (-3 dB) 10Hz to 500kHz (in 1 to 10 sequence), 1MHz, 3MHz
• Resolution Filter Shape Factor: <5:1 nominal (Digital implementation, similar to Gauss Pattern)
• Accuracy: <5% nominal
• Video Bandwidth (-3 dB): 10Hz to 3MHz
• Amplitude and Electric Level: Amplitude Measurement Range DANL to +20 dBm, preamplifier closed
• Reference Electric Level: -80 dBm to +30 dBm, 0.01dBm steps
• Preamplifier: 20 dB, nominal
• Input Attenuator Range: 0~40 dB, 1 dB steps; 0~50 dB, 1 dB steps
• Max Input DC Voltage: 50 VDC
• Max Continuous Power: +30dBm, average continuous power
• Displayed Average Noise Level (DANL): Input attenuation 0 dB, 1Hz resolution bandwidth
• Preamp Off: 1 MHz~10 MHz -140dBm (nominal), 10 MHz~1GHz -140dBm (nominal)
• SPA-1P5G: 1GHz~1.5 GHz -138 dBm (nominal)
• SPA-3P6G: 1GHz~3.6 GHz -138 dBm (nominal)
• SPA-7P5G: 1GHz~3.6GHz -138dBm (nominal); 4GHz~5GHz, -133dBm