Agilent Technologies E9300 manual Achieving Stable Results with GSM Signals, Input Settings , More

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Measuring TDMA Signals

Note	You should also ensure the filter is not reset when a step increase or
	decrease in power is detected by switching the step detection off.

Switch off step detection as follows:

1. Press System

Inputs

, Input Settings , More .

2.Press the Filter softkey to access the filter menu.

3.Press Step Det Off On to highlight Off .

The section “Setting the Range, Resolution and Accuracy” in the Agilent EPM series power meters Programming Guide shows you how to configure these parameters using the remote interface

Achieving Stable Results with GSM Signals

Signals with a pulse repetition frequency (PRF) close to a multiple or sub-multiple of the 220 Hz chopper-amplifier signal generate a beat note at a frequency between the PRF and 220 Hz. Control over the filter settings is again required to obtain stable results.

The PRF of a GSM signal is approximately 217 Hz and thus requires more averaging than most other TDMA signals. To achieve a stable measurement use the filter setting procedures to set the Length . Experimentally, a Length setting of 148 gives optimum results although settings in the order of 31 or 32 give acceptable results if a faster measurement is required.

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Contents Operating and Service Guide Copyright 1999 Agilent Technologies Certification WarrantyLegal Information Limitation of Warranty Exclusive RemediesGeneral Safety Information Sound EmissionConventions SafetyPower Meter Front Panel Operation Related Publications DocumentationSensors Covered by Manual Documentation Table of Contents Standing Wave Ratio SWR and Reflection Coefficient Rho Per Introduction Typical HP E-series E9300 power sensors Power Meter Requirements General InformationAgilent E-Series E9300 Power Sensors in Detail Simplified Block Diagram of Diode Pair/Attenuator/Diode PairGeneral Information Initial Inspection Checking Power Meter Firmware and DSP RevisionGetting Started Interconnections and Calibration Specifications Making Measurements What You’ll Find This Chapter Power Meter Configuration Changes Auto-averaging SettingsMeasuring Spread Spectrum and Multitone Signals Spread Spectrum SignalCdma Signal Measurements Cdma IS-95A 9Ch FwdMultitone Signal Measurements 90 % Frequency GHz Typical Lower Range Calibration FactorAchieving Stable Results with Tdma Signals Measuring Tdma SignalsPower Meter and Sensor Operation Achieving Stable Results with GSM Signals Input Settings , MoreElectromagnetic Compatibility EMC Measurements Setting the Range Measurement Accuracy and SpeedMeasurement Considerations AccuracySpeed and Averaging SummarySpecifications and Characteristics Sensor Low Power Path High Power Path IntroductionMaximum SWR E9300/1/4/A Power Sensor SpecificationsConnector Type 0C to +55C Maximum Power Maximum DC VoltagePower Linearity ± 2.5%Typical Power Linearity at 25C, after zero Additional Power Switching Point Zero Set Zero Drift Measurement NoiseSettling Time Time E4418B E4419BX2 Mode Calibration Factor and Reflection CoefficientCal Factor Uncertainty General E9300/1B and H Power Sensor Specifications Frequency RangeE9300B Typical SWR 25C ± 10C E9300H Typical SWR 10 MHz to 18 GHz 25C ± 10C Maximum Power Sensor To 35 C To 55 C GHz E9300/1B To 0 dBm To 10 dBm 10 to 20 dBm 20 to 26 dBm For larger changes refer to the following table E9300/1H DBm to 0 dBm +44 +30 dBm E9300/1B Conditions Zero Set Zero Drift2 Measurement Settling Time Typical Cal Factor Uncertainty Low Power Path Cal Factor Uncertainty High Power Path References Storage and Shipment EnvironmentE9300/1B and H Power Sensor Specifications Service Cleaning Connector CleaningPerformance Test Frequency System Rho Actual Maximum Uncertainty MeasurementPerformance Test Replaceable Parts Is the illustrated parts breakdown IPB that identifies allIllustrated Parts Break down Reference Agilent Part Qty Description Designation Number LABEL, ID E9301B Service Principles of OperationRepair of Defective Sensor TroubleshootingDisassembly Procedure Reassembly Procedure Removing Power Sensor ShellSales and Service Offices Asia PacificEurope