noise factor,noise figure
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- threshold of flicker iritability
- microphone effect of variable capacitor
- decision instant of digital signal
- end user
- digital distribution frame
- talkaround
- system controller
- pulse decay time
- acceptable quality level(AQL)
- connect signal
- Harmonic content
- image compression and coding
- code conversion
- compander
- generalized tamed frequency modulation (GTFM)
- direct call
- base station area
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- service provisioning