JRC JMA-5220-7 - Page 163

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3.9 OPERATE PERFORMANCE MONITOR
y
y y
(Example) When the initial bar length B = 8 and the current bar length A = 6, the relative attenuation is
obtained as d (B) = 3.5 dB and d (A) = 7 dB according to the Calibration Curve I. Thus, d
(A) - d (B) = 3.5 dB. This proves that the current attenuation of transmitted power is about
3.5 dB.
Example of Checking Transmitter System
Figure 2
PM
Current bar length A = 6
Initial bar length B = 8
Calibration Curve I
Relative Attenuation d
Measuring accuracy
Current Bar Len
g
th l