Rohde & Schwarz RF Power Meters and Voltmeters
9 models with full specifications in Meters.
Rohde & Schwarz offers a comprehensive selection of RF and microwave power meters, directional power meters, and RF voltmeters designed for research, production, and field maintenance. Selecting the appropriate instrument depends on whether you require termination power measurements, in-line directional power monitoring, or high-impedance voltage measurements. The portfolio spans from multi-channel benchtop units like the Rohde & Schwarz NRP/NRP2 to classic analog directional meters and specialized broadband voltmeters. These instruments rely on distinct sensor families to determine their operational frequency ranges, power limits, and measurement capabilities. This guide outlines how the different families are structured to help technical buyers choose the correct base unit for their measurement environment.
- Maximum System Frequency
- DC to 110 GHz (sensor dependent)
- Power Measurement Range
- -70 dBm to +45 dBm (base unit/sensor dependent)
- Supported Interfaces
- GPIB, USB, LAN, RS-232
- Primary Meter Categories
- Benchtop Power, Directional In-Line, RF Voltmeters
All models
| Model | Type | Display | Dimensions (W×H×D) | Frequency Range |
|---|---|---|---|---|
| NRP/NRP2 | Power | Intuitive graphic display | 258 mm × 103 mm × 300 mm (W×H×D, with handle) | — |
| NRT | Power | LCD (Simultaneous digital and analog indication) | — | 200 kHz to 4 GHz (sensor dependent) |
| NRVD | Power | Backlit LCD with variable backlighting, two separate digital readouts, and dual bargraph indicators | — | 0 Hz (DC) to 40 GHz (sensor dependent) |
| NAP | Power | Analog moving-coil meter and 3.5-digit LCD display | 241 mm × 110 mm × 260 mm | 0.2 to 1000 MHz (sensor-dependent) |
| NRVS | Peak Power | 4.5-digit LC display | 219 mm × 103 mm × 240 mm | 0 Hz (DC) to 40 GHz (sensor dependent) |
| URV5 | Millivoltmeters | 7-segment LCD, 4½-digit numeric readout with 50-segment analog bargraph | 219 mm × 103 mm × 350 mm | — |
| NAS | Power | Two-line LC display with digital readouts (3.5-digit and 3-digit) and dual analog bar graphs | 156 mm × 86 mm × 205 mm | 1 MHz to 2000 MHz (insertion unit dependent) |
| URE3 | Voltmeters, RMS | 4.5-digit LCD with selectable scale analog bar graph | 219 × 103 × 350 | DC, 10 Hz to 30 MHz |
| FSWP26 | Noise Figure | 12.1-inch WXGA color TFT touchscreen (1280 × 800 pixels) | 444 mm × 240 mm × 517 mm (without handles) | 1 MHz to 26.5 GHz |
Benchtop RF and Microwave Power Meters
For standard termination power measurements, Rohde & Schwarz provides both modern high-performance architectures and established benchtop meters. The Rohde & Schwarz NRP/NRP2 is a multi-channel base unit supporting up to four measurement channels simultaneously. It provides a system frequency range from DC up to 110 GHz and a 90 dB system dynamic range depending on the attached sensors. It is designed for average, peak, and peak-to-average power measurements.
For classic setups, the Rohde & Schwarz NRVD and Rohde & Schwarz NRVS offer precise RF power measurement. The Rohde & Schwarz NRVS is a single-channel meter featuring 13 digital noise-suppression filters and compatibility with the NRV-Z and URV5-Z intelligent sensor series. The Rohde & Schwarz NRVD provides a dual-channel equivalent, allowing simultaneous measurements on two independent channels to calculate ratios (A/B, B/A) and differences (A-B, B-A) in real time.
Directional and In-Line Power Meters
Directional meters are inserted directly between a source and a load to monitor forward and reflected power. The Rohde & Schwarz NRT is a directional power meter base unit that operates from 200 kHz to 4 GHz. It supports automatic averaging and measures parameters such as average burst power, peak envelope power (PEP), return loss, and SWR using R&S NRT-Z and NAP-Z sensor series.
Alternatively, the Rohde & Schwarz NAP is a classic dual-channel directional meter featuring both an analog moving-coil meter and a 3.5-digit LCD. It measures forward and reflected power, SWR, and modulation depth across a 0.2 to 1000 MHz range depending on the NAP-Z sensor used.
For mobile and field applications, the Rohde & Schwarz NAS is a lightweight, portable directional power meter weighing 1.2 kg. Operating on battery power or an AC adapter, the NAS works with insertion units to measure forward and reflected power, SWR, and return loss from 1 MHz to 2000 MHz, making it ideal for checking mobile radio transmitter systems.
RF Voltmeters and Broadband Meters
When high-impedance voltage measurements are required alongside power readings, RF voltmeters provide an alternative to standard power meters. The Rohde & Schwarz URV5 is a dual-channel RF millivoltmeter and power meter with a voltage measurement range from 200 µV to 1000 V. It features an LCD with a numeric readout and a 50-segment analog bargraph, automatically recalling calibration factors from the EEPROM of connected URV5-Z probes or NRV-Z power sensors.
For high-precision AC and DC voltage measurements up to 30 MHz, the Rohde & Schwarz URE3 is a broadband RMS and peak voltmeter. It features a 1 MΩ input impedance and measures AC voltages from 50 µV to 300 V and DC voltages up to 300 V. The URE3 utilizes a patented rectifier circuit with microprocessor-controlled autocalibration and supports setup memory for nine complete configurations.
Popular models
Frequently asked questions
- What sensor families are compatible with the Rohde & Schwarz NRVS and NRVD?
- Both the Rohde & Schwarz NRVS and NRVD are compatible with the R&S NRV-Z and URV5-Z intelligent sensor series.
- How many measurement channels does the Rohde & Schwarz NRP2 support?
- The Rohde & Schwarz NRP2 base unit supports up to four measurement channels simultaneously.
- Can the Rohde & Schwarz URE3 measure DC voltage?
- Yes, the Rohde & Schwarz URE3 can measure DC voltage up to 300 V, in addition to AC voltage up to 30 MHz.