R&S®NRQ6 Frequency selective power sensor

A milestone in power measurements

R&S®NRQ6 Frequency selective power sensor
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R&S®NRQ6 Frequency selective power sensor
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R&S®NRQ6 Frequency selective power sensor
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R&S®NRQ6 Frequency selective power sensor
Open Lightbox
R&S®NRQ6 Frequency selective power sensor
Open Lightbox
R&S®NRQ6 Frequency selective power sensor
Open Lightbox
R&S®NRQ6 Frequency selective power sensor
Open Lightbox
R&S®NRQ6 Frequency selective power sensor
Open Lightbox
R&S®NRQ6 Frequency selective power sensor R&S®NRQ6 Frequency selective power sensor R&S®NRQ6 Frequency selective power sensor R&S®NRQ6 Frequency selective power sensor R&S®NRQ6 Frequency selective power sensor R&S®NRQ6 Frequency selective power sensor R&S®NRQ6 Frequency selective power sensor R&S®NRQ6 Frequency selective power sensor

Key facts

  • Frequency selective power measurements from 50 MHz to 6 GHz
  • Power measurement range: -130 dBm to +20 dBm
  • 100 MHz measurement bandwidth
  • I/Q data capturing for RF vector signal analysis
  • Phase coherent measurements for low-power modulated signals
  • 3 year warranty
  • Product of the year

The new category of T&M devices

The R&S®NRQ6 combines the accuracy of a power meter with excellent dynamic range

The R&S®NRQ6 is based on receiver technology and can perform band-limited power measurements down to -130  dBm. The R&S®NRQ6 combines high-precision with high-speed measurements beyond the limits of currently available power meters. In addition to conventional continuous average measurements, the R&S®NRQ6 has a trace display function and also performs ACLR measurements. The optional R&S®NRQ6-K1 I/Q data interface, R&S®NRQ6-K2 power servoing and R&S®NRQ6-K3 phase coherent measurements options complete the R&S®NRQ6 as new category of test and measurment devices.

Features & benefits

Diverse measurement functions

Precise and fast with receiver based architecture

  • Continuous average power measurements down to -130 dBm
  • I/Q data capturing for RF vector signal analysis
  • Phase coherent measurements
  • Trace measurements
  • ACLR measurements
  • Ultrafast triggered pulse measurements
  • RF power, EVM and phase measurements with one single instrument
R&S®NRQ6 Frequency selective power sensor
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R&S®NRQ6 trace measurement on a pulsed signal

Easy operation

Maximum performance in minimum form factor

  • Intuitive web GUI
  • Diverse autoset functions
  • Automatic frequency tracking
  • Spectrum display for signal check
  • Hardware interfaces for user convenience
R&S®NRQ6 Frequency selective power sensor
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Signal check for a 20 MHz LTE signal

I/Q data capturing

The R&S®NRQ6 as a standalone RF frontend

The R&S®NRQ6 can be used as a standalone RF frontend to capture vector-modulated I/Q signals. With the optional R&S®NRQ6-K1 I/Q data interface, captured I/Q data can be read out using SCPI commands. The data is demodulated and analyzed using external software, e.g. R&S®VSE. With the R&S®NRQ6 version 2.10 and the R&S®VSE version 1.70, direct data aquisition and control is possible.

R&S®NRQ6 Frequency selective power sensor
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5G NR measurement with R&S®NRQ6 and R&S®VSE

Fast power servoing with R&S®SGT100A

In component test applications non-linear characteristics of DUT´s make it difficult to set up a specific output power. The R&S®NRQ6-K2 power servoing option enables a dedicated serial communications channel over the trigger connectors between R&S®NRQ6 and R&S®SGT100A. The desired power will be set in several iterations and is finished typically in 1 ms to 1.5 ms.

R&S®NRQ6 Frequency selective power sensor
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Power servoing with R&S®NRQ6 and R&S®SGT100A

In the power servoing setup the R&S®NRQ6 can perform also power measurements without disconnecting, just by remote control commands.

Phase coherent measurements

Calibration of multiple active antenna modules for beamforming

The synchronous phase coherent measurements (option R&S®NRQ6-K3) are based on a master/slave relationship between two or more R&S NRQ6. The master forwards the local oscillator signal (LO) and its clock signal (CLK) to the slave(s) and triggers the slave(s). The RF phases can be measured at up to 8 ports, where the typical uncertainty is only 0.1 degree at an power of -60 dBm.

R&S®NRQ6 Frequency selective power sensor
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R&S®NRQ6 multichannel phase difference measurement

Results of a measurement with one R&S®NRQ6 as master (only used for distribution of TRG, CLK and LO signals) and eight R&S®NRQ6 as slaves.

High measurement speed

Beyond limits of conventional diode power sensors

Every diode based power meter works without band limitation in the specified frequency range. Precise measurement of low-power signals requires averaging of multiple measurement samples and this increases the measurement time. The diode based power meter technology is mature, and therefore only limited product innovations are possible. The receiver technology based R&S®NRQ6 has significantly increased the measurement speed for low-power signals.

R&S®NRQ6 Frequency selective power sensor
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Measurement time comparison for a CW signal

With the R&S®NRQ6 the measurement time is reduced e.g. by a factor of ca. 20.000 in comparison to the NRP8S for a -50 dBm CW signal.

Specifications
Frequency range50 MHz to 6.0 GHz
Impedance matching (SWR)50 MHz to 100 MHz<1.20
 >100 MHz to 2.0 GHz<1.13
 >2.0 GHz to 6.0 GHz<1.20
Power measurement rangedynamic range dependent on RBW (10 Hz to 400 MHz)-130 dBm to +20 dBm
Damage levelmax. average power1 W (+30 dBm) continuous
 max. peak envelope power2 W (+33 dBm) for max. 1 µs
 max. DC voltage± 20 V
RF input attenuation 0 dB, 30 dB
Measurement subrangesRF input attenuation = 0 dB-130 dBm to -10 dBm
 RF input attenuation = 30 dB-100 dBm to +20 dBm
Resolution bandwidth (RBW)1))single-sideband (SSB) mode10 Hz to 40 MHz
 zero IF mode (RF input frequency ≥ 400 MHz)50 MHz, 80 MHz, 100 MHz, 400 MHz
Acquisitionsample rate119 MHz to 121 MHz 2)
Displayed average noise level (DANL) 3)
 RF input attenuation = 0 dB
 50 MHz to 100 MHz< –148 dBm (1 Hz)
 >100 MHz to 400 MHz<-153 dBm (1 Hz)
 >400 MHz to 2.4 GHz<-156 dBm (1 Hz)
 >2.4 GHz to 6.0 GHz<-153 dBm (1 Hz)
 RF input attenuation = 30 dB
 50 MHz to 100 MHz<-118 dBm (1 Hz)
 >100 MHz to 400 MHz<-123 dBm (1 Hz)
 >400 MHz to 2.4 GHz<-126 dBm (1 Hz)
 >2.4 GHz to 6.0 GHz<-121 dBm (1 Hz)
Uncertainty for absolute power measurements 4)
 operating temperature range+20 °C to +25 °C+15 °C to +35 °C0 °C to +50 °C
 RF input attenuation = 00 dB
 50 MHz to 100 MHz0.156 dB0.167 dB0.211 dB
 >100 MHz to 400 MHz0.130 dB0.143 dB0.192 dB
 >400 MHz to 3 GHz0.080 dB0.100 dB0.163 dB
 >3 GHz to 6 GHz0.092 dB0.110 dB0.169 dB
 RF input attenuation = 30 dB
 50 MHz to 100 MHz0.176 dB0.189 dB0.237 dB
 >100 MHz to 400 MHz0.147 dB0.162 dB0.216 dB
 >400 MHz to 3 GHz0.093 dB0.114 dB0.183 dB
 >3 GHz to 6 GHz0.105 dB0.125 dB0.190 dB
Uncertainty for relative power measurements 5) between any two power levels
 RF input attenuation = 0 dB
 –60 dBm to –20 dBm0.020 dB
 RF input attenuation = 30 dB
 –30 dBm to +10 dBm0.020 dB
1) By default, the discrete RBW filter selection mode (1, 2, 3, 5, … steps) is active. Alternatively, steplessly variable RBW can be activated for RBW ≤ 20 MHz. The SNR in the variable RBW selection mode may be slightly lower than in the discrete RBW selection mode.
2) The sample rate is selected automatically.
3) This applies to resolution bandwidths ≤ 300 kHz. For larger RBWs, spurious frequency response contributions might violate these limits at certain RF input frequencies. In addition, RBWs using zero IF mode might violate these limits due to DC offset contributions.
4) Expanded uncertainty (k = 2) for absolute continuous average power measurements on CW signals centered within RBWs ≤ 10 MHz. Specifications include calibration uncertainty, aging, linearity and temperature effect. Measurement noise must additionally be taken into account when measuring low powers. The contribution of measurement noise can be neglected below a two-sigma value of 0.01 dB.
For signal power levels less than 30 dB above the DANL at the selected RBW, a measurement bias must additionally be taken into account.
For power levels above +15 dBm/–15 dBm for 30 dB/0 dB RF input attenuation, respectively, uncertainty contributions due to intermodulation and other nonlinear effects must additionally be taken into account. For RBWs below 1 kHz, LO phase noise contributions must additionally be taken into account. For RBWs above 300 kHz, uncertainty contributions due to coherent spurious response frequencies (e.g. when a locked reference frequency is used) must additionally be taken into account. When configuring the power sensor for use with an externally supplied LO signal, uncertainty contributions due to the signal integrity of the external LO signal must additionally be taken into account. Signal integrity includes properties such as frequency accuracy, and amplitude and phase stability
5) Expanded uncertainty (k = 2) for relative power measurements on CW signals of identical frequency in continuous average mode for RBW ≤ 10 MHz. Specifications include aging and temperature effect. Measurement noise must additionally be taken into account.
For signal power levels less than 30 dB above the DANL at the selected RBW, a measurement bias must additionally be taken into account. For RBWs below 1 kHz, LO phase noise contributions must additionally be taken into account. For RBWs above 300 kHz, uncertainty contributions due to coherent spurious response frequencies (e.g. when a locked reference frequency is used) must additionally be taken into account. When configuring the power sensor for use with an externally supplied LO signal, uncertainty contributions due to the signal integrity of the external LO signal must additionally be taken into account. Signal integrity includes properties such as frequency accuracy, and amplitude and phase stability

Available options

General analysis
Product Description

R&S®NRQ6-K1

Order number 1421.4705.02

Description

I/Q data interface

R&S®NRQ6-K2

Order number 1421.4740.02

Description

Power servoing with SGT100A

R&S®NRQ6-K3

Order number 1421.4770.02

Description

Phase coherent measurements

PoE+ switch
Product Description
R&S®NRP-ZAP2 10-Port PoE+ switch

R&S®NRP-ZAP2

Order number 3639.1902.02

Description

10-Port PoE+ switch

Cables
Product Description
NRP-ZKU USB interface cable

R&S®NRP-ZKU

Order number 1419.0658.02

Description

USB interface cable, length: 0.75 m

NRP-ZKU USB interface cable

R&S®NRP-ZKU

Order number 1419.0658.03

Description

USB interface cable, length: 1.5 m

NRP-ZKU USB interface cable

R&S®NRP-ZKU

Order number 1419.0658.04

Description

USB interface cable, length: 3 m

NRP-ZKU USB interface cable

R&S®NRP-ZKU

Order number 1419.0658.05

Description

USB interface cable, length: 5 m

R&S®NRP-ZK6

Order number 1419.0664.02

Description

6-pole interface cable, length: 1.5 m

R&S®NRP-ZK6

Order number 1419.0664.03

Description

6-pole interface cable, length: 3 m

R&S®NRP-ZK6

Order number 1419.0664.04

Description

6-pole interface cable, length: 5 m

Documentation
Product Description

R&S®DCV-1

Order number 0240.2187.06

Description

Documentation of calibration values

R&S®DCV-ZP

Order number 1173.6506.02

Description

Printout of DCV

R&S®ACANRQ6

Order number 3598.1427.03

Description

R&S®Accredited calibration

Application videos

R&S®NRQ6 Frequency Selective Power Meter

R&S®NRQ6 Frequency Selective Power Sensor

The R&S®NRQ6 is based on receiver technology and can perform band-limited power measurements down to –130 dBm. The R&S®NRQ6 delivers high-precision, high-speed measurements beyond the limits of currently available power meters.

Phase Coherence Measurements with R&S®NRQ6

Phase Coherence Measurements with R&S®NRQ6

With the R&S®NRQ6-K3 phase coherence option, the R&S®NRQ6 power sensor offers a simple solution to perform outstanding phase coherent measurements as required e.g for beamforming and massive MIMO applications.

Automated cloud-based RF testing

Automated cloud-based RF testing

Rohde & Schwarz presented automated cloud-based RF testing at the GSMA Mobile World Congress 2018 in Barcelona.

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