Front and Rear Panel Features

 

 

 

 

 

Front Panel Overview

 

 

 

 

 

 

 

 

Item

 

 

 

 

 

 

 

 

Description

 

#

Name

 

 

 

 

 

 

 

 

 

 

 

 

7

System Keys

 

Access features used with all analyzer modes and affect the state of the entire spectrum

 

 

 

 

analyzer.

 

 

 

 

 

 

 

8

Vol. Control/

 

Not currently implemented. To be implemented in future firmware upgrade.

 

 

Earphones

 

 

 

 

 

 

 

 

 

9

PROBE PWR

 

Supplies power for external high frequency probes and accessories (see page 83).

 

 

 

 

 

 

10

Marker Keys

 

Enable markers to obtain specific information about the displayed measurement.

 

 

 

 

 

 

11

EXT TRIGGE

 

Enables you to externally trigger measurements.

 

 

R

 

 

 

 

 

INPUT

 

 

 

 

 

 

 

 

 

12

POWER

 

Turns the analyzer on. A green light indicates power on. A yellow light indicates standby

 

 

ON/OFF

 

mode.

 

 

 

 

 

 

 

 

 

 

 

NOTE

The front-panel switch is a standby switch, not a LINE switch

 

 

 

 

 

(disconnecting device); the analyzer continues to draw power even when

 

 

 

 

 

the line switch is in standby. Use the detachable power cord to

 

 

 

 

 

disconnect the analyzer from the mains supply.

 

 

 

 

 

 

 

 

 

 

 

13

Help Key

 

Not currently implemented. To be implemented in future firmware upgrade.

 

 

 

 

 

 

14

Window Key

 

Next Window: On displays with multiple windows, changes the highlighted window that is

 

 

s

 

currently active.

 

 

 

 

Zoom: Zooms in on the highlighted window.

 

 

 

 

 

 

15

Navigation

 

Not currently implemented. To be implemented in future firmware upgrade.

 

 

Keys

 

 

 

 

 

 

 

 

 

16

Return Key

 

Exits the current menu and returns to the previous menu.

 

 

 

 

 

 

17

Data Control

 

Change the numeric value of an active function. Entries appear in the active function

 

 

s

 

area of the display. Also see “Entering Data” on page 49.

 

 

 

 

 

 

18

Floppy

 

Accepts a 3.5 inch 1.44 MB floppy disk.

 

 

Disk Drive

 

 

 

 

 

 

 

 

 

19

RF Input

 

Input for an external signal. Make sure that the total power of all signals at the analyzer

 

 

 

 

input does not exceed +30 dBm (1 watt). The E4446A and E4448A input connector is

 

 

 

 

2.4 mm.

 

 

 

 

 

 

 

20

IF Input, 1st

 

Allows connections for external mixing (Option AYZ)

 

 

LO Output

 

 

 

 

 

 

 

 

 

 

Chapter 2

23

Page 23
Image 23
HP E4445A, E4448A, E4446A, E4440A, E4443A manual Description Name

E4443A, E4448A, E4445A, E4446A, E4440A specifications

The HP E4440A, E4446A, E4445A, E4448A, and E4443A are high-performance spectrum analyzers designed to meet the testing and measurement needs of engineers and technicians in various industries. These models offer a combination of advanced technologies and features that enhance their functionality and usability.

Starting with the HP E4440A, this spectrum analyzer is well-known for its wide frequency range and excellent resolution bandwidth, making it ideal for characterizing RF signals. It is capable of analyzing signals from 9 kHz up to 1.5 GHz, providing a comprehensive tool for capturing a wide spectrum of frequencies. The E4440A features a sophisticated built-in signal analysis capability, including demodulation and specialized measurement functions that assist in the evaluation of complex signals.

The E4446A elevates performance further with a frequency range extending up to 6 GHz. This model includes advanced phase noise measurement capabilities, which are crucial for testing communication systems and ensuring signal integrity. Its large color display coupled with a user-friendly interface allows for easy navigation through various measurement settings.

For deeper insights into signal behavior, the HP E4445A stands out with its ability to perform real-time spectrum analysis. This feature allows engineers to capture transient signals and analyze them effectively, which is essential in modern RF design and troubleshooting. The E4445A also supports a range of modulation analysis tools enabling comprehensive testing of communication systems.

Meanwhile, the E4448A is recognized for its high dynamic range and low noise floor. These characteristics are essential for analyzing weak signals in the presence of stronger ones. Its enhanced sensitivity allows engineers to detect signals buried in noise, which is vital for applications such as spectrum monitoring and interference analysis.

Finally, the HP E4443A is tailored for more specialized applications, featuring a frequency range up to 3 GHz. It incorporates advanced digital signal processing techniques that facilitate accurate measurements even in challenging environments. Its portability and robust design make it a preferred choice for field applications, allowing users to perform spectrum analysis where needed.

In summary, the HP E4440A, E4446A, E4445A, E4448A, and E4443A spectrum analyzers offer a rich set of features and technologies that cater to the evolving demands of RF engineers. With their superior performance characteristics, they serve as invaluable tools across a variety of testing and measurement applications in the telecommunications and electronics sectors.