RDT Remote Digital Terminal
automatic digital radio direction finder
digital radio communication
digital radio frequence memory
Digital Radio Frequency Memory
数字射频存储器
数字射频存贮
数字储频
数字射频储频器
数字射频存储
digital radio frequency memory DRFM
digital radio transceivers
digital radio trunking system
digital radio wireless transceiver
digital radio-graph technology
DRFM Digital radio frequency memory
High Speed Digital Radio