Front and Rear Panel Features

 

 

 

Front Panel Overview

 

 

 

Item

Description

Associated Function Keys

 

 

 

11

Data invalid indicator

Asterisk (*) means some or all trace data may not match

 

 

annotation due to possible analyzer setting changes.

 

 

 

12

Status message area

Displays status messages (see Types of Spectrum

 

 

Analyzer Messages” on page 71).

 

 

 

 

13

Key menu title

Dependent on menu selection.

 

 

 

 

 

14

Softkey menu

Softkey labels

 

 

 

 

 

15

Frequency span or stop frequency

Span or Frequency, Stop Freq

 

 

 

 

 

16

Sweep timea

Sweep, Sweep Time

 

17

Video bandwidtha

BW, Video BW

 

18

Frequency offset

Frequency, Freq Offset

 

 

 

 

19

Display status line

Displays informational and error messages (see Types of

 

 

Spectrum Analyzer Messages” on page 71).

 

 

 

 

20

Resolution bandwidtha

BW, Res BW

 

21

Center frequency or start frequency

Frequency, Center Freq or Start Freq

 

 

 

 

22

Internal preamp

Amplitude, Int Preamp

 

 

 

 

 

23

Auto alignment routine status

System, Alignments, Auto align

 

 

 

(If auto alignment is off, no indicator appears)

 

 

AA: auto alignment of all

AL: analyzer alerts you

 

 

analyzer parameters.

when alignment is

 

 

 

needed.

 

 

 

 

24

Trigger or Trace

Trig or Trace/Avg

 

 

 

Trigger & sweep modes:

Trace modes:

 

 

F: free-run trigger

W: clear-write

 

 

X: external (front) trigger

S: store blank

 

 

R: external (rear) trigger

m: minimum hold

 

 

L: line trigger

M: maximum hold

 

 

V: video trigger

V: view

 

 

C: continuous sweep

1: trace 1

 

 

S: single sweep

2: trace 2

 

 

 

3: trace 3

 

 

 

 

25

Averagea

Trace/Avg, Average: The

VAvg: voltage average

 

 

number shown indicates

LgAv: log power average

 

 

current average number.

PAvg power average

 

 

 

 

26

Display line annotation

Display, Display Line

 

 

 

 

 

27

Amplitude offset

Amplitude, Ref Lvl Offst

 

 

 

 

28

Amplitude scale

Amplitude, Scale Type or Amplitude, Scale/Div

 

 

 

 

Chapter 2

25

Page 25
Image 25
HP E4448A, E4446A, E4440A, E4445A, E4443A manual Trigger & sweep modes Trace modes

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.