Anritsu conducts PIM analysis over fiber and present RF spectrum

Anritsu has introduced the IQ fiber master MT2780A RF and PIM analyser. The device performs passive intermodulation analysis over fiber and presents RF spectrum results derived from IQ data.

The MT2780A is designed to provide field engineers, technicians, and third-party contractors a single tool for RF interference measurements and troubleshooting on LTE-based systems with CPRI front haul infrastructure.

The device uses CPRI measurement capabilities that allow tests to be conducted on the ground.

It can be used to scan the uplink RF signals of a remote radio head for in-band interference while simultaneously conducting PIM over CPRI measurements.

Supporting all Tier 1 LTE base station radio manufacturers, the instrument can determine whether KPIs are being affected by interference or PIM.

Analyzing IQ data allows users to view a radio’s uplink spectrum for interference troubleshooting.

The device uses four SFP inputs, providing the ability to compare multiple bands and sectors. As measurements are derived from baseband IQ data, the analyser can make measurements on any frequency RRH, or combination of frequencies of the RRH, Anritsu claims.

It will report the presence of PIM, whether it is internal or external, and the distance. In addition, its heatmap displays which transmitter contributes the most intermodulation.

For on-going monitoring, the MT2780A can be installed at cell sites to collect measurements and provide analytical information.

This configuration can be used to tackle problems such as intermittent PIM occurring on specific days and times or changes due to base station load during the day.

The device can also be used for band-less testing, the first test tool when identifying an interference problem and its location.

It weighs 1kg and measures 185x133x55mm.