Sony DWT-B30, Руководство по обслуживанию

Страница: 37 / 98

4-5 (E)
DWT-B30
Check procedure
1. Measurement of transmission power
Required equipment
.
Power meter
.
RF adjustment cable (J-6402-390-A)
Connection
Measurement procedure
(1) Remove the antenna from this unit and connect the RF adjustment cable to the output terminal.
(2) Connect this unit and power meter.
(3) Turn on the power of this unit to enter the test mode. (Refer to Section 1-5.)
(4) Measure the transmission power of the frequency at the following three points.
For the setting of the frequency, refer to “Procedure to change frequency in the test mode” in this
section.
RANGE 0: L ch
RANGE 2: C ch
RANGE 4: H ch
(5) Perform the above measurement steps (1) to (4) with each transmission power of 2 mW, 10 mW and
25 mW.
Specifications:
25 mW setting 10 mW setting 2 mW setting
18.75 to 30 mW 5.12 to 7.68 mW 1.4 to 2.4 mW
RF adjustment cable
Power meter