Narda remote spectrum analysers

Narda Safety Test Solutions has expanded the range of functions of its remote spectrum analysers. The NRA-3000 and NRA-6000 models provide uninterrupted I/Q data as a real-time stream. At the same time, the number of samples for spectrum analysis has been increased to over 600,000.

The scope and I/Q data option for the NRA-3000 and NRA-6000 analysers deliver the data from signal sequences separated into the real (or in-phase) and the imaginary (quadrature) components. Coverage is uninterrupted up to a channel bandwidth of 400 kHz. The data are available as a gapless stream via TCP/IP or UDP. The NRA transfers the data in blocks of up to 250,000 points for channel bandwidths of up to 32 MHz.

Remote commands similar to plain text allow for further evaluation using add-on software and hardware analysis tools. Additionally, the NRA is suitable for use as the RF front end (DSP) in the satellite communications range, eg, in measurement and control systems, where constellation diagrams and quantities such as modulation error ratio (MER), error vector magnitude (EVM) or energy per bit to spectral noise density (Eb/NO) are required.

The number of samples (bins) in spectrum analysis mode has been increased to more than 600,000. This means that users can measure, for example, a spectrum 6 GHz wide with a bin separation of about 10 kHz without needing to tune to different ranges, and with a free choice of one or more result types (instantaneous {actual} value, maximum value, average value, etc).

The NRA units provide users with the means to monitor spectrum locally or remotely (spectrum monitoring complying with ITU-T), check signal quality, determine interference, and to make use of or lease unoccupied frequency gaps (multi-carrier spectrum filling).

Depending on the device type, the analysers cover a frequency range from 9 kHz to 6 GHz with resolution bandwidths from 10 Hz up to 32 MHz.