Application Note

Determine Interference Problems With Narda's IDA 2: Example GSM

Source: Narda Safety Test Solutions GmbH
Continuous GSM Interference From Intermodulation

Because antennas are so close together in modern cell phone stations, they can’t help but affect each other. Because TX antennas have a higher field strength, they tend to interfere with RX channels. This application note discusses a case in which a continuous impairment in the GSM 900 band was affecting a cell phone station’s performance, and how Narda’s IDA 2 interference and direction analyzer was able to help.