GSM/EDGE Measurement Application

 

 

Measurements

 

 

 

Description

Specifications

Supplemental Information

 

 

 

Output RF Spectrum (ORFS)

 

GMSK modulation (GSM)

and

 

3π/8 shifted 8PSK modulation,

 

3π/4 shifted QPSK, π/4 shifted

EDGE Output RF Spectrum

 

 

16QAM, –π/4 shifted 32QAM

 

 

modulation in NSR/HSR (EDGE)

Minimum carrier power at RF Input

 

−20 dBm (nominal)

ORFS Relative RF Power Uncertainty a

 

 

Due to modulation

 

 

Offsets ≤ 1.2 MHz

±0.26 dB

 

Offsets ≥ 1.8 MHz

±0.27 dB

 

Due to switchingb

 

±0.17 dB (nominal)

ORFS Absolute RF Power Accuracyc

 

±0.27 dB (95th percentile)

a.The uncertainty in the RF power ratio reported by ORFS has many components. This specification does not include the effects of added power in the measurements due to dynamic range limitations, but does include the following errors: detection linearity, RF and IF flatness, uncertainty in the bandwidth of the RBW filter, and compression due to high drive levels in the front end.

b.The worst-case modeled and computed errors in ORFS due to switching are shown, but there are two further considerations in evaluating the accuracy of the measurement: First, Agilent has been unable to create a signal of known ORFS due to switching, so we have been unable to verify the accuracy of our models. This performance value is therefore shown as nominal instead of guaranteed. Second, the stan- dards for ORFS allow the use of any RBW of at least 300 kHz for the reference measurement against which the ORFS due to switching is ratioed. Changing the RBW can make the measured ratio change by up to about 0.24 dB, making the standards ambiguous to this level. The user may choose the RBW for the reference; the default 300 kHz RBW has good dynamic range and speed, and agrees with past practices. Using wider RBWs would allow for results that depend less on the RBW, and give larger ratios of the reference to the ORFS due to switching by up to about 0.24 dB.

c.The absolute power accuracy depends on the setting of the input attenuator as well as the sig- nal-to-noise ratio. For high input levels, the use of the electronic attenuator and “Adjust Atten for Min Clip” will result in high signal-to-noise ratios and Electronic Input Atten > 2 dB, for which the absolute power accuracy is best. At moderate levels, manually setting the Input Atten can give better accuracy

than the automatic setting. For GSM and EDGE, “high levels” would nominally be levels above +1.7 dBm and −1.3 dBm, respectively.

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Agilent Technologies N9010A specifications Edge Output RF Spectrum
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N9010A specifications

Agilent Technologies, now known as Keysight Technologies, offers a wide range of sophisticated measurement instruments, one of which is the N9010A, a high-performance signal analyzer. The N9010A is a versatile tool designed to meet the needs of engineers and researchers dealing with complex signal generation and analysis.

The N9010A signal analyzer is built on the X-Series signal analysis platform, making it an outstanding choice for various applications, including wireless communication, radar, and electronic warfare. Its main features include an extensive frequency range from 9 kHz to 6 GHz, which provides users with the capability to analyze a diverse array of signals.

One of the defining characteristics of the N9010A is its high dynamic range and sensitivity. The instrument has been engineered to ensure that weak signals can be accurately detected in the presence of strong interfering signals. This quality is crucial for applications such as spectrum monitoring and interference analysis.

Equipped with advanced digital signal processing techniques, the N9010A allows for real-time analysis of complex signals. The analyzer supports various modulation techniques and can perform measurements on frequency, time, and phase to provide a comprehensive view of signal performance. Users can leverage its abilities to analyze a wide range of formats including LTE, Wi-Fi, and many others.

Another significant feature of the N9010A is its flexibility. The instrument includes various software options and measurement applications that can be configured to meet specific testing requirements. This adaptability is essential for engineers who need to stay current with industry developments and evolving technologies.

User-friendliness is also a hallmark of the N9010A. The device features an intuitive interface that simplifies the navigation process, making it easier for users to set up tests and perform analyses with reduced training time.

Additionally, the N9010A can be integrated into a broader test environment, allowing for seamless operation within automated measurement systems. This capability enhances productivity and efficiency in design validation and compliance testing.

In summary, the Agilent Technologies N9010A signal analyzer combines advanced technology, high performance, and user-friendly features. Its ability to handle a wide range of applications makes it an essential tool in the toolbox of modern engineers and researchers working in signal analysis, making it a valuable investment in the pursuit of technological advancements.
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