Chapter 3 Functions and Operations

SYS

Displays the System menu softkey selections.

 

￿ OPTIONS — Displays a second level of functions.

 

￿ CLOCK — Displays a second level of functions.

 

￿ SELF TEST — Start an instrument self test.

 

￿ STATUS — Displays instrument status.

Options ￿ UNITS — Select the unit of measurement (English or metric).

Sub-Menu

￿PRINTER — Displays a menu of supported printers. Use the Up/Down arrow key and ENTER key to make the selection.

￿FIXED CW — Toggles the fixed CW function ON or OFF. When ON, sweep time is reduced and immunity to RF interference is less. When OFF, (normal mode) the unit provides maximum RF interference immunity.

￿CHANGE DATE FORMAT — Toggles the date format between MM/DD/YY, DD/MM/YY, and YY/MM/DD.

￿BIAS TEE — Toggles Bias Tee on and off.

Clock

￿ HOUR — Enter the hour (0-23) using the Up/Down arrow key or the keypad.

Sub-Menu

Press ENTER when data entry is complete or ESCAPE to restore the previous

 

value.

 

￿ MINUTE — Enter the minute (0-59) using the Up/Down arrow key or the

 

keypad. Press ENTER when data entry is complete or ESCAPE to restore the

 

previous value.

 

￿ MONTH — Enter the month (1-12) using the Up/Down arrow key or the key-

 

pad. Press ENTER when data entry is complete or ESCAPE to restore the pre-

 

vious value.

 

￿ DAY — Enter the day using the Up/Down arrow key or the keypad. Press

 

ENTER when data entry is complete or ESCAPE to restore the previous

 

value.

 

￿ YEAR — Enter the year (1997-2036) using the Up/Down arrow key or the

 

keypad. Press ENTER when data entry is complete or ESCAPE to restore the

 

previous value.

 

￿ BACK — Returns to the top-level SYS menu.

SAVE

Choosing Save Display activates the alphanumeric menu for trace storage. Use

DISPLAY

the soft keys to enter a label for the saved trace.

 

For example, to save a display with the name “TRACE1” press the soft key for

 

the group that contains the letter “T” and then press the “T” soft key. Press the

 

soft key for the group that contains the letter “R” then press the “R” soft key.

 

Continue for the rest of the letters. Use the number keys on the numeric keypad

 

to enter numbers. Use the softkeys and keypad as necessary to enter the entire

 

name, then press ENTER to complete the process.

 

The BACK SPACE softkey removes the currently highlighted letter in the trace

 

name.

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Anritsu S251B manual Clock
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S251B specifications

The Anritsu S251B is a state-of-the-art handheld spectrum analyzer designed for wireless communication applications. This compact yet powerful device is engineered to provide engineers and technicians with versatile and reliable measurements in both field and laboratory environments. Its lightweight design, weighing under 1.5 kilograms, allows for easy portability, making it an ideal solution for on-site testing.

One of the standout features of the S251B is its frequency range, which spans from 100 kHz to 6 GHz. This broad coverage is essential for monitoring various wireless technologies, including LTE, Wi-Fi, Bluetooth, and many others. The exceptional resolution bandwidth options from 1 kHz to 1 MHz help in detecting weak signals and interference, ensuring that users can analyze signals with precision.

The S251B utilizes advanced digital signal processing (DSP) technology, which significantly enhances measurement accuracy and speed. This allows for real-time spectrum analysis, ensuring that users can quickly identify and troubleshoot issues. The device supports a range of measurement applications, including spectrum analysis, interference analysis, and channel power measurements, making it a versatile tool for many scenarios.

For ease of use, the analyzer features a bright, color display that provides clear visibility in various lighting conditions. The intuitive graphical user interface enables quick navigation through settings and configuration options. Additionally, the S251B is equipped with a long-lasting battery that provides hours of continuous operation, further enhancing its suitability for field applications.

Connectivity is another key area where the Anritsu S251B excels. It offers USB and Ethernet ports for easy data transfer and remote control capabilities. This feature is particularly useful for engineers who need to integrate the analyzer into automated testing setups or require remote access for more profound analysis.

Moreover, the S251B is designed with ruggedness in mind. It is built to withstand the challenges of field use, including dropping and exposure to various environmental conditions, ensuring reliable performance even in demanding situations.

In conclusion, the Anritsu S251B handheld spectrum analyzer combines portability, advanced measurement techniques, and durability. With its wide frequency range, user-friendly interface, and connectivity options, it is a vital tool for professionals involved in the testing and deployment of wireless communication systems. Its robust capabilities make it an impressive asset for troubleshooting, maintenance, and installation tasks in the field.
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