今年2月,电子工业部对我校研制的“移动电台数传终端”科研成果进行了部级鉴定。这种“移动电台数传终端”具有能利用现有无线双工电台传输电话、传真和数据等多种数字业务和模拟调频电话等功能。利用该终端可实现无中心台控制多信道共用的组网,网中用户通过拨号,即可自动转接、沟通联络并有与市话相类似的拨号音、振铃声、占线音及自动拆线等功能。该终端采用了四电平调频的窄带数字调制技术和用双工电台进行无中心台组 In February of this year, the Ministry of Electronics Industry conducted a ministerial level appraisal of the scientific research achievements of “mobile radio data terminal” developed by our school. This “mobile radio terminal” has the ability to use existing wireless duplex stations to transmit a variety of digital services such as telephone, fax and data and analogue FM phones. Using the terminal can be achieved without central station control multi-channel shared networking, users in the network through dial-up, you can automatically transfer, communicate with local calls and have a similar dial tone, ring, busy tone and automatic stitching Features. The terminal uses a four-band FM narrowband digital modulation technology and duplex stations for centerless sets