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Spectrum analyser tests digital radios to 26 GHz

Anritsu’s MS2691A is now available in a version that extends coverage to 26 GHz—earlier this year, the company released the instrument with range options up to 6 and 13.5 GHz. Fundamentally a spectrum analyser with high measurement performance and speed, the unit optionally hosts a vector signal generator that covers frequencies to 6 GHz and RF modulation bandwidths of 120 MHz. The analyser supports GSM, GPRS, EDGE, W-CDMA, WiMAX and HSPA signal types, as well as LTE (Long-Term Evolution), DigRF and 4G-application testing. It has automatic programming, enabling the measurement of mobile WiMAX signals. As well as a signal analyser and generator, the MS2691A features an RNC (radio-network- controller) simulator for testing communications products and designs. The compact format, which—Anritsu says—typically replaces a rack of three separate units, also suits the instrument to use in a production-test environment. Measurement speeds are up to 20 times faster than those of any standard signal analyser, the company claims.

Dynamic-range specifi cations quote a displayed average noise level of 155 dBm/Hz (166 dB/Hz with an optional pre-amp) at 2 GHz and a third-order intercept of 22 dBm, also at 2 GHz; patented techniques permit the unit to achieve its published linearity fi gures. An option takes the signal-analysis bandwidth to 120 MHz, supporting 4G signal types. Level accuracy is 0.5 dB. By analyzing DL-MAP, users can measure WiMAX signals without knowing the parameters of the signal. Interfaces include bundled Gigabit Ethernet, GPIB and USB2.0. In its 6-GHz version, with the RNC feature, the analyser costs around €25,000.

Anritsu, www.anritsu.com.