Radio Frequency Systems has announced the availability of tower mounted Amplifiers (TMAs) for the 700 MHz ABC-block, 700 MHz upper-C block, 700 MHz public safety LTE spectrum and AWS-PCS dual band with integrated 700/850 MHz diplexer. As operators roll out Voice-Over-LTE (VoLTE) services, they need to deliver the high-quality voice services no interruptions in service. This can be accomplished by optimizing the uplink signal from the user device with tower-mounted amplifiers, ensuring seamless VoLTE coverage while maintaining the high data throughput needed to deliver an optimal user experience.
Tower-mounted amplifiers are increasingly being deployed in low-band frequencies, such as 700 MHz, because the LTE is uplink-limited — and VoLTE underlines this limitation even further. The LTE system takes advantage of the added uplink gain provided by a TMA, reducing the transmitted power of all mobile devices in the cell. This reduces the overall interference that mobile devices generate in the uplink spectrum. www.rfsworld.com