| 摘要 |
A radio transceiver includes a read only memory (ROM) for storing an origination code and a random access memory (RAM) for storing a destination code. The destination code may be manually entered into the RAM via a keypad or it may be entered remotely from another transceiver. In signalling between two transceivers, the destination code is transmitted followed by the origination code indicating the transmission's origin. In this manner coded squelch communications may take place between two parties without the necessity of reverting to carrier squelch operation while obtaining enhanced user privacy and flexibility.
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