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R-50C-021-5 Datasheet(PDF) 3 Page - Keysight Technologies |
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R-50C-021-5 Datasheet(HTML) 3 Page - Keysight Technologies |
3 / 14 page 03 | Keysight N1911A/N1912A P-Series Power Meters and N1921A/N1922A Wideband Power Sensors - Data Sheet P-Series Power Meter and Sensor Key System Specifications and Characteristics2 Maximum sampling rate 100 Msamples/sec, continuous sampling Video bandwidth ≥ 30 MHz Single-shot bandwidth ≥ 30 MHz Rise time and fall time ≤ 13 ns (for frequencies ≥ 500 MHz)2, see Figure 1 Minimum pulse width 50 ns3 Overshoot ≤ 5 %2 Average power measurement accuracy N1921A: ≤ ± 0.2 dB or ± 4.5 %4 N1922A: ≤ ± 0.3 dB or ± 6.7 % Dynamic range –35 dBm to +20 dBm (> 500 MHz) –30 dBm to +20 dBm (50 MHz to 500 MHz) Maximum capture length 1 second Maximum pulse repetition rate 10 MHz (based on 10 samples per period) 1. See Appendix A on page 9 for measurement uncertainty calculations. 2. Specification applies only when the Off video bandwidth is selected. 3. The Minimum Pulse Width is the recommended minimum pulse width viewable on the power meter, where power measurements are meaningful and accurate, but not warranted. 4. Specification is valid over –15 to +20 dBm, and a frequency range 0.5 to 10 GHz, DUT Max. SWR < 1.27 for the N1921A, and a frequency range 0.5 to 40 GHz, DUT Max. SWR < 1.2 for the N1922A. Averaging set to 32, in Free Run mode. Signal under test rise time (nS) 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 35 30 25 20 15 10 5 0 Figure 1. Measured rise time percentage error versus signal under test rise time Although the rise time specification is ≤ 13 ns, this does not mean that the P-Series meter and sensor combination can accurately measure a signal with a known rise time of 13 ns. The measured rise time is the root sum of the squares (RSS) of the signal under test rise time and the system rise time (13 ns): Measured rise time = √ ((signal under test rise time)2 + (system rise time)2 ), and the % error is: % Error = ((measured rise time – signal under test rise time)/signal under test rise time) x 100 |
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