Holland-electronics ST-5128S Manual do Utilizador Página 17

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CARRIER / NOISE DIFFERENTIAL MEASUREMENT (C/N) MODE
While in the sub-menu of the single channel measurement screen, press the F3
(C/N) soft key to enter this function. The meter will measure and display the
differential between the carrier’s power level and the noise level (fig. 9)
Note: the result of the C/N measurement is only for reference.
CHV: 5 77.25 Mhz
C : 75.5
C/N = 40.5 dB
LOW MID TOP
ESC
Fig. 9
C/N differential measurement
In the C/N Differential measurement mode, the F1-F4 soft keys have the
following functions:
F1 –LOW- Selects the first channel in the standard channel table list.
F2- MID- Selects the channel in the middle of the standard channel table list.
F3 –TOP- Selects the last channel in the standard channel table list.
F4- ESC- Exits to the sub-menu screen of the single channel measurement
mode
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