ADJUSTMENTS

SOURCE LOCK THRESHOLD

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.ALC.

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 (ALC), date, and system model and serial numbers. Set the copy protect tab on the disk. Properly safeguard the disk so that it will be available for later use, as needed.

Perform the RF Power Generation and Control test in Chapter 3, Op- erational Tests. If the test fails, proceed to Chapter 5, Troubleshooting.

 

If calibration fails:

 

￿ Verify the GPIB cable is connected to the Dedicated GPIB (bot-

 

tom) connector on the 373XXA rear panel.

 

￿ Verify that the power meter and sensor are functioning correctly,

 

the cables are in good condition, and all connections are secure.

 

￿ Verify the correct power sensor data exists in the power meter.

 

￿ Note the failed step in the calibration procedure from the screen

 

messages.

 

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

 

Troubleshooting.

6-6SOURCE LOCK

This procedure uses the 373XXA internal diagnostics and calibration

THRESHOLD

menus to adjust the source lock threshold of the phase-lock loop. Per-

 

form this calibation procedure if:

 

￿ The A4 PCB is replaced.

 

￿ BBRAM chip on A9 Processor PCB is replaced and the Source

 

Lock Threshold Calibration data was not previously saved on

 

disk (that is, data is not available for recall from a floppy disk).

Calibration Perform the following steps:

Procedure

373XXA MM

6-11

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Anritsu 373XXA manual Adjustments Source Lock Threshold, 6SOURCE Lock

373XXA specifications

The Anritsu 373XXA series is a notable line of microwave and RF signal analyzers designed for comprehensive analysis and testing of various wireless communication technologies. These analyzers are specifically crafted to meet the demands of modern communication systems, making them ideal for engineers and technicians working in wireless research, development, and manufacturing.

One of the main features of the Anritsu 373XXA series is its wide frequency range, which typically spans from as low as 5 kHz to several GHz, accommodating a vast array of signal types and applications. This extensive frequency coverage allows users to test and validate all manner of systems, from LTE and 5G networks to satellite communications, yielding accurate and reliable measurement results.

The device employs advanced measurement technologies that provide in-depth analysis capabilities. Among these technologies is the ability to perform both time and frequency domain measurements, allowing users to visualize and diagnose signal integrity issues effectively. In addition, the 373XXA series incorporates vector signal analysis, which is crucial in evaluating complex modulated signals, commonly found in today’s sophisticated wireless communication protocols.

Another distinguishing characteristic of the Anritsu 373XXA is its user-friendly interface. It features a large, high-resolution display that enables easy navigation through the analyzer's functions and measurements. The intuitive design is further enhanced by customizable settings and measurement configurations that streamline the workflow, making it accessible for both novice and experienced users.

The 373XXA series also supports various digital and analog signal demodulation techniques, ensuring compatibility with an array of communication standards. Furthermore, users can benefit from its built-in signal generation capabilities, which allows for end-to-end testing of devices and systems under realistic operational conditions.

Portability is another key feature of the Anritsu 373XXA series. The compact design and lightweight structure facilitate easy transport, which is particularly advantageous for field applications where mobility is critical.

Overall, the Anritsu 373XXA series stands out as a versatile and powerful tool for professionals in the RF and microwave field, thanks to its extensive frequency range, advanced measurement technologies, user-friendly interface, and portability. Whether developing new wireless standards or troubleshooting existing systems, the 373XXA delivers precision and reliability essential for today’s dynamic communication landscape.