12 Chapter1
Understanding EDGE (with GSM)
What Does the Agilent Technologies E4406A VSA Series Transmitter Tester Do?
What Does the Agilent Technologies E4406A
VSA Series Transmitter Tester Do?
The E4406A VSA Series Transmitter Tester makes measurements that
conform to the GSM 5.04, 5.05, 11.10, 11.21, and ANSI J-STD-007
specifications.
These documents define complex, multi-part measurements used to
maintain an interference-free environment. For example, the
documents include measuring the power of a carrier. The E4406A
automatically makes these measurements using the measurement
methods and limits defined in the standards. The detailed results
displayed by the measurements allow you to analyze EDGE (with GSM)
system performance. You may alter the measurement parameters for
specialized analysis.
This instrument was primarily developed for making measurements on
digital transmitter carriers. These measurements can help determine if
a GSM transmitter is working correctly. The E4406A is capable of
measuring the continuous carrier of a base station transmitter.
For infrastructure test, the instrument will test base station
transmitters in a non-interfering manner by means of a coupler or
power splitter.
This instrument makes the following measurements:
• Transmit Power
• Power versus Time
• Phase and Frequency Error
• Output RF Spectrum
• Spectrum (Frequency Domain)
• Waveform (Time Domain)
• Tx Band Spur
• EDGE EVM
• EDGE PvT
• EDGE ORFS
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