First, from the network to understand the application scope of: A, maritime satellite phone, maritime satellite has so far has more than 30 years of history, has always been A satellite network is deeply rooted in the hearts of the people, from the emergency d...

Simple said satellite phone is rely on satellite wireless network for realizing the function of telephone equipment, and our principle is the same as the ordinary mobile phone, just a ordinary mobile phones like GSM CDMA system is the ground of the base statio...

L the use of the intercom Press the launch button (also called PTT button) and start to speak, after the speech must loosen the PTT button, otherwise cant hear each other speak. Speech dont have to be loud, otherwise it will cause distortion, voice just from t...