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The Rohde & Schwarz NRVD covers a total bandwidth of 40 GHz and a power span from 100 pW up to the kW range. Being individually and absolutely calibrated,the sensors can be interchanged as required without impairing measurement accuracy. The NRVD is not just a powermeter with two inputs; it functions like two independent measuring instruments in one cabinet that perform measurements simultaneously and exchange data with one another. The two channels can be separately set so that two completely different measurements can be carried out at the same time. The two measured values can also be related to each other for direct indication of reflection coefficient, SWR and return loss, for instance, when a SWR bridge is connected to the meter. The Test Generator makes it possible to check the connected sensors for damageor destruction, e.g. afteroverloading or excessive mechanical stress. It generates a low-distortion, highly accurate 50 MHz signal of 1 mW power (0 dBm). Specifications. Measurement functions: unmodulated and modulated power (average power, pulse power, peak envelope power, AM), reflection, DC and AC voltage (depending on sensor). Frequency and level range: DC to 40 GHz, 100 pW to 30 W (depending on sensor). Sensors: all R&S¸NRV-Z and R&S URV5-Z voltage and power sensor. Display: LCD for figures, units, user prompting and analog display; adjustable backlighting. Resolution of digital display: 5 digits max., resolution adjustable in 3 steps: HIGH: 12000 steps or 0.001 dB; MEDIUM: 1200 steps or 0.01 dB; LOW: 120 steps or 0.1 dB. Averaging filter: over 1 to 512 readings for reducing the display noise. Test generator Output power: 1.00 mW; factory set to ±0.7 % (traceable to PTB). Test generator Frequency: 50 MHz.
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