Distributed Antenna Systems (DAS) are commonly deployed inside buildings or large venues such as stadiums to provide localized coverage and capacity. In some cases this is done to off-load the outdoor network and in other cases it is done to extend coverage to areas the outdoor network is not able to reach. Regardless of the reason, DAS installations have proven to be a real challenge due to their susceptibility to Passive Intermodulation (PIM) interference. I was reminded of this fact during a recent visit to a potential customer.It was a serendipitous PIM evaluation. Upon my arrival at the company’s facility, I was given the option of going ahead with my carefully prepared PowerPoint presentation or to do a live demo of the PIM Master™ MW82119A on a new DAS recently installed at the customer’s location. Live demos are more interesting so we skipped the conference room and headed directly to the DAS front end. Within minutes, we were able to use the PIM Master to identify and repair PIM problems within reach, as well as identify branches that require further investigation.
via WiFiNovation | Scoop.it
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