Programming Fundamentals

Using the LAN to Control the Analyzer

Check that the hostname and IP address are correctly entered in the node names database.

If you are using a UNIX environment, ping each node along the route between your workstation and the analyzer, starting with the your workstation. Ping each gateway, then attempt a ping of the remote file server.

If the analyzer still does not respond to ping, then you should suspect a hardware problem with the analyzer. To check the analyzer performance, refer to "Verify the Analyzer Performance" in this chapter.

Intermittent Response

If you received 1 to 8 packets back, there is probably a problem with the network. Because the number of packets received depends on your network traffic and integrity, the number might be different for your network.

Use a LAN analyzer or LAN management software to monitor activity and determine where bottlenecks or other problems are occurring. The analyzer will still function, but communications over the LAN will be slower.

On a single-client/single-server network, the most likely cause of intermittent response to an echo request is a hardware problem with the LAN module installed in the PC, the cable, or the analyzer. To check the analyzer, refer to "Verify the Analyzer Performance" later in this chapter.

The Standard UNIX PING Command Synopsis ping [-r][-v][-o]

host [packetsize] [count]

Description The ping command sends an echo request packet to the host once per second. Each echo response packet that is returned is listed on the screen, along with the round-trip time of the echo request and echo response.

Options and Parameters -rBypasses the routing tables, and sends the request directly to the host.

-v

Reports all packets that are received, including the response

 

packets.

-o

Requests information about the network paths taken by the

 

requests and responses.

host

The host name or IP address.

packetsize

The size of each packet (8 bytes - 4096 bytes).

count

The number of packets to send before ending ping (1-(231-1)).

 

If count is not specified, ping sends packets until

 

interrupted.

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Agilent Technologies E4406A VSA manual Intermittent Response, Standard Unix Ping Command Synopsis ping -r-v-o
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E4406A VSA specifications

The Agilent Technologies E4406A Vector Signal Analyzer (VSA) is a sophisticated instrument designed for the analysis of complex signals. This versatile device is widely used in various fields, including telecommunications, broadcasting, and aerospace, thanks to its high-performance capabilities and advanced features.

One of the standout characteristics of the E4406A is its ability to analyze digital modulation schemes. It supports a wide range of formats, including 2G, 3G, 4G, and emerging standards, providing a comprehensive tool for engineers and researchers working with modern communication systems. The VSA is particularly valued for its flexibility in signal analysis, allowing users to capture and demodulate signals in real-time.

The E4406A utilizes advanced measurement technologies that ensure precise signal analysis. With a frequency range from 50 kHz to 6 GHz, the VSA can handle various applications, making it a suitable choice for both R&D and production testing. The instrument employs digital signal processing techniques, enabling high-resolution measurements and exceptional dynamic range. This ensures accurate interpretation of signals, even in the presence of noise or interference.

Another significant feature of the E4406A is its user-friendly interface. The combination of a graphical display and intuitive controls allows users to visualize complex waveforms and spectra easily. The software capabilities of the E4406A further enhance its usability, providing various analysis options including error vector magnitude (EVM), adjacent channel power (ACP), and spectrum occupancy. These tools allow engineers to diagnose issues rapidly and efficiently optimize their designs.

The modularity of the E4406A is a key aspect of its design. Users can upgrade their instrument with various option packs and software for specific applications, making it adaptable to a variety of testing scenarios. This flexibility ensures that the VSA remains relevant as technology evolves and new standards emerge.

In conclusion, the Agilent E4406A Vector Signal Analyzer stands out due to its combination of advanced measurement capabilities, user-friendly interface, and adaptability. Its extensive feature set makes it an essential tool for professionals involved in the development and testing of modern communication systems. Whether for research, design validation, or quality control, the E4406A delivers high-performance signal analysis that meets the demands of today's fast-paced technology landscape.
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