1.数字基带传输: Gp:
数字基带传输是在具有低通特性的有线信道中直接传输基带信号，特别是在相对较低的距离上。
2.数字频段传输:
数字频段传输是数字基带信号通过载波调制，将频谱转移到高频带通通道(如各种无线通道和光通道)。
GE PRG-MODEM
GE PRG-MODEM
1. Digital baseband transmission: Gp:
Digital baseband transmission refers to the direct transmission of baseband signals in wired channels with low-pass characteristics, especially at relatively low distances.
2. Digital frequency band transmission:
Digital frequency band transmission refers to the modulation of digital baseband signals by carriers, which transfer the spectrum to high-frequency bandpass channels (such as various wireless and optical channels).
GE PRG-MODEM
GE PRG-MODEM
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