EPM2428 is a new product belonging to RFIC’s EPM family. It’s a three-stage power amplifier with super high output power in 2.4-2.5GHz band utilizing InGaP/GaAs HBT process. With excellent linearity performance, the device delivers 28dBm

在EVM板子上跑操作系统，再连接3G模块来实现拨号功能，主要可以实现gprs,wcdma等。-realise the function of pppd call gprs.