| 1. | Frequency modulator demodulator trainer 频率调制调解学习套件 |
| 2. | Semiconductor integrated circuits . detail specification for type jb42 modulator demodulator 半导体集成电器. jb42型调制解调器详细规范 |
| 3. | Methods of measurement for equipment used in digital microwave radio transmission systems - measurements on terrestrial radio - relay systems - transmitter receiver including modulator demodulator 数字微波无线电发射系统使用设备测量方法.地面无线电中继系统测量.发射机接收机包括调制器解调器 |
| 4. | Methods of measurement for equipment used in digital microwave radio transmission systems . part 2 : measurements on terrestrial radio - relay systems . section 4 : transmitter receiver including modulator demodulator 数字微波无线电发射系统使用设备的测量方法.第2部分:陆地无线电中继系统的测量.第4节:发射机接收机 |
| 5. | Methods of measurement for equipment used in digital microwave radio transmission systems - part 2 - 4 : measurements on terrestrial radio - relay systems ; transmitter receiver including modulator demodulator 数字微波无线电传输系统使用设备的测量方法.第2 - 4部分:地面无线电中继系统的测量.包括调制器解调器的发射机接收机 |
| 6. | Methods of measurement for equipment used in digital microwave radio transmission systems ; part 2 : measurements on terrestrial radio - relay systems ; section 4 : transmitter receiver including modulator demodulator 数字微波无线电发射系统使用设备的测量方法.第2部分:地面无线电中继系统的测量.第4节:发射机接收包括调制器解调器 |
| 7. | Methods of measurement for equipment used in digital microwave radio transmission systems - part 2 : measurements on terrestrial radio - relay systems - section 4 : transmitter receiver including modulator demodulator ; amendment 1 数字微波无线电发射系统使用设备的测量方法.第2部分:地面无线电中继系统的测量.第4节:发射机接收包括调制器解调器.修改件1 |