Anritsu 373XXA manual OLD Calibration

SOURCE LOCK THRESHOLD ADJUSTMENTS

Equipment Required

None

NOTE

Allow the 373XXA to warm-up at least 30 minutes prior to performing calibration, and perform the ALC calibration (paragraph 6-3) before doing this calibration.

Procedure

Step 1. If recalibrating a 37397A , install broadband terminations to both ports or install a throughline between ports.

Step 2. Press the Option Menu key (Enhancement key group) to dis- play the OPTIONS menu.

Step 3. Select DIAGNOSTICS from menu.Then select in se- quence: H/W CALIBRATIONS then SOURCE THRESH-

OLD CALIBRATION.

Step 4. Follow the directions displayed on the 373XXA CRT screen, until calibration is completed.

Post Calibration After the calibration process is completed, perform the following ac- Actions tions, as appropriate:

If calibration passes:

Save the calibration data to (hard) disk, as follows:

Step 1. Press the Option Menu key (Enhancement key group) to dis- play the OPTIONS menu.

Step 2. Select DIAGNOSTICS from menu.Then select in se- quence: H/W CALIBRATIONS DISK OPERATIONS SAVE TO HARD DISKHW_CAL.SLT.

NOTE

Also save the calibration data to floppy disk for archival purposes as a backup in case of a hard disk failure. Label the disk with cali- bration type, date, and system model and se- rial numbers. Set the copy protect tab on the disk. Properly safeguard the disk so that it will be available for later use, as needed.

If calibration fails:

￿Repeat the calibration. If it still fails, then proceed to Chapter 5, Troubleshooting.

6-12 373XXA MM