Aeroflex's 3065A RF combiner is the latest addition to the 3060 Series of PXI RF conditioning modules for communications system test applications. Also, updates are available to measurement suites for advanced digital communication standards that add new functionality and can double measurement speeds. The combiner addresses the need of RF test system engineers working in cellular handset or RFIC and component manufacturing when making measurements of RF transceivers. In addition to providing summed signal outputs, the two-input combiner module supports various combinations of input and output switched path configurations, to enable testing of single- and multi-port RF devices without the need to alter connections. Operating over the frequency range 250MHz to 6GHz, the combiner provides a combined low loss connection for a RF signal generator and RF digitiser to a mobile phone antenna, while offering high isolation between input ports and accepting input of power levels of up to +33dBm for TDMA burst signals or +30dBm for continuous CW. The low loss between the unit under test and the digitiser increases overall test system sensitivity, reducing the measurement uncertainty due to noise, enabling more accurate calibration of mobile phone transmitters for UMTS and GSM UEs.