Initial setup, Figure 15 calibration potentiometer – Bird Technologies 4391A User Manual
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19
Initial Setup
Note: On a clean flat workspace perform the following setup proce-
dure:
1.
Remove the front panel. Refer to "Front Panel Removal" on page 23.
2.
Insert a DC feed-in adapter into the FWD element of the socket.
3.
Insert a metal dust plug (supplied with the instrument) into the RFL element
socket.
4.
Connect a BNC to BNC cable assembly from the output of calibrator/source
to the DC feed-in adapter.
5.
Set the RF Power Analyst range switches to the 10 and x100 positions.
6.
Connect AC power and place the LINE/OFF/BATT switch to the LINE setting.
7.
Switch on the Calibrator/Source.
8.
Allow it to warm up for at least one hour.
9.
Set the Calibrator/Source to output 30 ±0.05 microamps.
10. Adjust potentiometer, R25 (Figure 15 on page 19), until the RF Power Ana-
lyst Displays 1000 ±5.
Figure 15 Calibration Potentiometer