User's Manual Part 2

Test Set Calibration – continued

6-68 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU MAY 2004

PRELIMINARY

Automatically Selecting Test

Equipment in the Serial

Connection Tab

When using the auto-detection feature to select test equipment, the

WinLMF determines which test equipment items are actually

communicating with WinLMF. Follow the procedure in Table 6-24 to

use the auto-detection feature.

Table 6-24: Procedure for Selecting Test Equipment Using Auto-Detect

Step Action

1 In the WinLMF window menu bar, click Tools and select Options... from the pull–down menu. The

WinLMF Options window appears.

2 If it is not in the forefront, click on the Serial Connection tab.

3 Select the correct serial port in the COMM Port: pick list (normally COM1).

4 If it is not selected (no black dot showing), click on the Auto–Detection button.

5 If they are not already displayed in the box labeled GPIB address to search, click in the box and type

in the GPIB addresses for the test equipment to be used, separating each address with commas and no

spaces. (Refer to the Setting GPIB Addresses section of Appendix B for instructions on verifying

and/or changing test equipment GPIB addresses.)

NOTE

During the GPIB address search for a test equipment item to perform RF power measurements (that is,

for TX calibration), the WinLMF will select the first item it finds with the capability to perform the

measurement. If, for example, the address sequence 13,18,1 is included in the GPIB addresses to

search box, the power meter (GPIB address 13) will be used for RF power measurements. If the

address sequence 18,13,1 is included, the WinLMF will use the communications system analyzer

(GPIB address 18) for power measurements.

6 Click Apply. The button will darken until the selection has been committed. A check mark will appear

in the applicable Manual Configuration section check boxes for detected test equipment items.

7 Click Dismiss to close the WinLMF Options window.

Calibrating Test Equipment

The WinLMF Calibrate Test Equipment function zeros the power

measurement level of the test equipment item that is to be used for TX

calibration and audit. If both a power meter and an analyzer are

connected (for example, an HP 437 and an HP8921A/600), only the

power meter is zeroed.

The Agilent E4406A transmitter tester does not support

power measurement level zeroing. Refer to the Equipment

Calibration section of Appendix B for E4406A calibration.

NOTE