Siglent has introduced a spectrum analyser with a real-time analysis bandwidth up to 40MHz and a maximum frequency of 7.5GHz. There is also a 5GHz version.

Called SSA3000X-R, the “series extends the functionality of a classical spectrum analyser with the benefits of real-time signal acquisition and analysis,” according to the company. “Addressable application areas include broadcast, cellular and near-field communication systems and spectrum surveillance.”

The user interface – 10.1in touch screen with mouse and keyboar connections as well as an integrated web server – is shared with Siglent’s SSA3000X Plus and SVA1000X instruments.

Both models go down to 9kHz, and feature a minimum resolution bandwidth (RBW) of 1Hz.

The standard integrated pre-amplifier helps to deliver a minimum DANL of -165dBm. “Together with the amplitude accuracy of <0.7dB, even the smallest signals just above the noise of the device can be detected and measured,” claimed the company.

With up to 40MHz real-time analysis bandwidth, a 100% POI for signals which appear for over 7.2µs is claimed.

The optional advanced measurements package (SSA3000XR-AMK) includes channel power (CHP), adjacent channel power (ACPR), occupied bandwidth (OBW), TOI and waterfall diagram (monitor), the harmonic and carrier-to-noise ratio (CNR) measurements.

There are EMI options, with peak, average, RMS and quasi-Peak detector types. EMI filter bandwidths of 200Hz, 9kHz, 120kHz and 1MHz follow CISPR16.1 definitions. “The real-time capability of the instrument can also be utilised for EMI debugging purposes, for example chasing and locating rarely appearing interference sources and broadband noise,” said the company.

Another option (SSA3000XR-WDMA) offers vector signal analysis for complex modulated signals, for example measuring error vector magnitude (EVM) of PSK, MSK or QAM modulated signals. Operation is for signals with up to 40MHz modulation bandwidth.

With an integrated tracking generator, combined with an external return loss bridge, the spectrum analyser turns into a scalar network analyser.