We are planning on getting some handheld radios for communication within the team and with base camp. We are wondering what frequency, range and power radios to get that would be useful for general communication, and in case of any emergency or rescue operation in Nepal. Is there any specific radio frequency or frequency band that is used and/or monitored for this purpose? Are there any locations within the Khumbu that would be monitoring radio traffic (run by the NMA or the military or any other party?) Any advice in this matter would be appreciated. Mobile phones?