Handheld spectrum analysers

30 March 2011 Test & Measurement

The FSH4 and FSH8 handheld spectrum analysers from Rohde & Schwarz offer many useful new functions for installing and servicing CDMA and LTE mobile radio networks.

In their basic configuration, the analysers can now perform measurements in the spectral range. They can, for example, detect spurious emissions and display the associated limit values. Thanks to their 20 MHz bandwidth, they are suitable for analysing LTE signals.

Using two new software options, FSH-K46 and -K46E, the instruments are capable of all the functions that service and installation technicians need to check the operationally relevant parameters of CDMA2000 base-station signals. The K46 option measures the power, determines the ratio of peak power to average power, and displays characteristic parameters such as the power in both the pilot channel (F-PICH) and the synchronisation channel (F-SYNC), the carrier frequency offset, composite EVM (error vector) and Rho. The K46E option has been designed for more in-depth analysis and can also perform code domain power measurements. These measurements provide the information needed for graphically displaying the power in all occupied and unoccupied channels, for example.

Additional new measurement functions have been incorporated into the base unit, including the ability to measure spurious emissions that might interfere with the adjacent transmit signal. Predefined masks for CDMA2000, WCDMA, TD-SCDMA, WiMAX and LTE allow the user to measure the spectrum emission mask with minimum operating effort. The gated sweep function makes it possible to display pulsed signals in the spectrum.

For more information contact Trevor Grundlingh, Protea Electronics, +27 (0)11 719 5700, [email protected], www.protea.co.za

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