3 Making Measurements

Resolving Signals of Equal Amplitude

In this example a decrease in resolution bandwidth is used in combination with a decrease in video bandwidth to resolve two signals of equal amplitude with a frequency separation of 100 kHz.

Notice that the final RBW selection to resolve the signals is the same width as the signal separation while the VBW is slightly narrower than the RBW.

1Connect two sources to the analyzer input as shown below.

Figure 3 Setup for obtaining two signals

N9310A

7 8 9 4 5 6

1 2 3

0 ·

Signal generator

Directional coupler

N9310A

 

 

7

8

9

4

5

6

1

2

3

0

·

 

Signal generator

2Set one source to 300 MHz. Set the frequency of the other source to 300.1 MHz. Set both source amplitudes to –20 dBm.

3Setup the analyzer to view the signals:

Press [PRESET].

Press [FREQ] > {Center Freq} > 300.05 > {MHz}.

Press [SPAN] > {Span} > 2 > {MHz}.

Press [BW/SWP] > {RBW} > 30 > {kHz}.

28

N9340A User’s Guide

Page 38
Image 38
Agilent Technologies N9340A manual Resolving Signals of Equal Amplitude, Setup for obtaining two signals

N9340A specifications

Agilent Technologies, now part of Keysight Technologies, has established itself as a leader in electronic measurement solutions. One of their standout products, the N9340A Portable Spectrum Analyzer, exemplifies cutting-edge technology tailored for a diverse range of applications in the field of RF and microwave engineering.

The Agilent N9340A is a compact, lightweight, and battery-operated spectrum analyzer that is designed to meet the rigorous demands of both field and laboratory environments. Weighing merely 3.1 kg (6.8 lbs), it boasts a rugged design that ensures durability during portable use, making it a preferred choice for technicians and engineers who require mobility without sacrificing performance.

One of the key features of the N9340A is its frequency range, which spans from 100 kHz up to 3 GHz, allowing users to analyze a broad array of signals across various applications, including wireless communications, broadcasting, and other RF technologies. Its exceptional sensitivity, characterized by a displayed average noise level (DANL) as low as -165 dBm, makes it capable of detecting even the faintest signals amidst noise.

The instrument is equipped with a user-friendly interface, featuring a large 8.4-inch display that offers clear and detailed visibility of spectra and analysis results. The intuitive touch screen and enhanced graphical capabilities facilitate ease of use, especially in fast-paced testing environments.

Moreover, the N9340A incorporates advanced measurement capabilities, such as a real-time measurement option, which allows for instantaneous signal analytics. This feature is particularly valuable for applications in the fields of signal interference identification and troubleshooting. The analyzer also supports various analysis modes, including power spectral density, vector signal analysis, and channel power measurement, catering to diverse measurement needs.

A notable technological advancement in the N9340A is its built-in tracking generator, which provides a comprehensive test solution for components by enabling users to perform gain compression tests, return loss measurements, and other essential tests without the need for additional equipment.

In terms of connectivity, the N9340A offers multiple options, including USB and LAN interfaces, which aid in easy data transfer and remote operation. The optional battery pack further enhances its portability, providing users with flexibility and the ability to conduct measurements in locations without immediate access to power.

Overall, the Agilent N9340A Portable Spectrum Analyzer represents a powerful combination of advanced technology, robust performance, and practical design. Its versatility makes it an essential tool for engineers and technicians who work with RF and microwave technologies, ensuring accurate measurements and efficient workflow in an ever-evolving industry.