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The HP 8901A modulation analyzer combines the capabilities of several RF instruments to give complete, accurate characterization of modulated signals in the 150 kHz to 1300 MHz frequency range. Both instruments very accurately measure modulation and recover the modulation signal. They determine RF frequency and measure RF power. RF Input Frequency range: 150 kHz to 1300 MHz. RF Input Operating level: 12 mV rms to 7 V rms. RF Input impedance: 50 ohm nominal. Frequency Modulation Rates: 20 Hz to 200 kHz. Frequency Modulation Deviations: to 400 kHz. FM Accuracy: ±2% of reading ± 1 digit, 20 Hz to 10 kHz rates, 250 kHz to 10 MHz. ± 1 % of reading ± 1 digit, 50 Hz to 100 kHz rates, 10 MHz to 1300 MHz. Phase Modulation Carrier frequency: 10 MHz to 1300 MHz. Phase Modulation Rates: 200 Hz to 20 kHz; typically usable from 20 Hz to 100 kHz with degraded performance. Phase Modulation Deviation: to 400 radians. Amplitude Modulation Rates: 20 Hz to 100 kHz. Amplitude Modulation Depth: to 99%. Amplitude Modulation Accuracy: ±2% of reading ± 1 digit, 50 Hz to 10 kHz rates, 150 kHz to 10 MHz. ± 1 % of reading ± 1 digit, 50 Hz to 50 kHz rates, 10 MHz to 1300 MHz. Frequency Counter Range: 150 kHz to 1300 MHz. Frequency Counter Accuracy: ±3 counts of least significant digit ± reference accuracy. Options. Opt 001: RF connectors on rear panel only. Opt 002: 1 x 10^-9 / day internal reference. Opt 003: Connections for external local oscillator. Opt 004: Operation from 48 to 440 Hz power (Temp. <40°C). Opt 010: AM and FM calibrators.
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