Real-time spectrum analyzers cover 8/18/27 GHz

April 20, 2015 // By Jean-Pierre Joosting
Saelig Company has announced the compact RTSA7500 real-time spectrum analyzer — a powerful, full-featured instrument designed to analyze wireless signals in real-time (not progressively scanned). This is essential for seeing intermittent and frequency-hopped signals.

The RTSA7500 has all the standard features of a sophisticated, expensive bench-top spectrum analyzer, but at far lower cost since it uses the display and processing power of an attached PC. Frequency controls, marker functions for tracking specific frequencies and multi-trace functionality are all included, as well as a real-time triggering for measuring complex data signals such as Wi-Fi and LTE. Sophisticated FPGA-based digital signal processing within the RTSA7500 enables the capture of elusive time-varying signals across an instantaneous bandwidth of up to 100 MHz.

The real-time analysis of the RTSA7500 combines patented, low-cost digital software-defined radio technology, open source software, standard APIs, and a PC-controlled architecture to provide unparalleled performance in a very economical instrument. And the widescreen view of a laptop or PC monitor enables enhanced viewing not available on instruments with built-in screens.

Monitoring dynamic and agile signals usually requires a large budget instrument, but the RTSA7500's advanced real-time spectrum analysis performance comes at a price that is as affordable as an ordinary spectrum analyzer. It utilizes industry-leading APIs/standards (including LabView drivers) and open-source code to allow easy customization, remote control, and installation in test fixtures.

The RTSA7500 processes RF signals at a speed fast enough to detect any signals in a given captured bandwidth. Signals can be viewed in the frequency and time domains as well as power spectral density to enable analysis of signals that may be undetectable to the human eye. It also provides the capability to trigger on events, capture them, and record them for playback and subsequent deeper analysis. Another important and useful feature of the RTSA7500 is the ability to make measurements remotely via the Internet. This is ideal for monitoring applications where personnel are not always available.

The Model RTSA7500 is ideal in the lab, on the manufacturing floor or out in the field. It is available in four versions: RTSA7500-8B — 100 kHz to 8 GHz with 10 MHz