Narda Remote Analyzer NRA-RX

The Narda NRA Series is a winner, thanks to its exceptional range of features and its exemplary price to performance ratio. 

Developed specially for the radio monitoring market, the NRA-RX Analyzers with receiver characteristics are the ideal remotely controllable and addressable measuring stations for everyone that relies on reliable measurement, analysis and monitoring of RF signals. Remote control and data transfer is via Ethernet, which means that the NRA Analyzers can be controlled from any location using a PC or laptop. Drivers for numerous Control and Monitoring systems are available from many well-known manufacturers for this purpose. That means a saving in time and cost: There is no need to physically visit each measuring station in order to collect data or change the configuration, as they are all controlled from one location. So Narda NRA opens up technical opportunities and practical advantages to system integrators, operators and authorities that are exemplary in this price class.

Innovative technology with guaranteed reliability 

The digital design of the NRA Analyzers is based on an intelligent combination of the heterodyne principle with state of the art FFT analysis and trigger functions. The Narda NRA can capture pulsed signals as well as random signals, and is ideal for both short and long term monitoring of all types of RF signals. By combining an analog heterodyne receiver with digital FFT analysis, the Analyzers can achieve sweep rates of up to 12 GHz/s. The captured signals are preprocessed in all operating modes, thus reducing the quantity of data and relieving pressure on the network. Despite this, the up to 600,000 measurement points per scan ensure gapless frequency monitoring with high resolution.

Easy to install, simple to control 

The compact size of the NRA devices coupled with their low power consumption means that they can be quickly integrated without fuss into existing measuring stations. The measurement data are presented in ASCII, or in binary form for faster data transfer. The Analyzers work with a wide variety of wideband and directional antennas. Your own antennas, cables and other devices can be configured; the antenna factors and calibration values are stored in the NRA and taken into account automatically during measurements. The “Antenna Control” option allows direct use of Narda antennas and cables, with all antenna factors and calibration data being detected and applied automatically to ensure that the Analyzers deliver precise results expressed directly in units of field strength.

The devices in the NRA series are all-round performers with lots of options. Their
applications are based on practical requirements. All NRA devices can detect even
very weak signals because of their very low intrinsic noise. Four different operating
modes are available in total. Spectrum Analysis with Wideband FFT and Channel
Monitoring are installed as standard.
Optional functions that can be selected in addition to the above are:
Multi-Channel Power
Level Meter
Scope with I/Q data capture and streaming
The NRA-RX series: Product features
Frequency resolution (RBW) from 10 Hz to 20 MHz
50 dB input attenuator settable in 1 dB steps
Display range from -150 dBm to +21 dBm (RBW 10 Hz)
DANL < -155 dBm/Hz
< 1,2 dB level measurement uncertainty at 15 °C bis 30 °C
High-resolution spectrum with more than 600,000
measurement points (approx.)
Detector for fixed resolution (BINs), choice of data
compression using +Peak, -Peak or RMS
ASCII or binary data transfer
Multi-Channel Power: Up to 500 freely definable channels
Level Meter (Zero Span): Resolution bandwidths
from 100 Hz to 32 MHz
Scope and IQ Data: Real-time analysis in the time domain
from 100 Hz to 32 MHz, IQ data up to 32 MHz (block by
block) or streaming up to 400 kHz CBW


Datasheet