Application Notes for Line Testing with ET 91 To learn more click on note! Single Sided Measurements END to END Measurements LCL Balance Impedance Return Loss Near End Crosstalk Spectrum Analyser Frequency Response with MTTS Automatic Master Slave Test Micro Interruption Analysis ELEKTR NIKA

LCL Balance Measurement with ET 91 Two balance measuring modes are provided: ■ Measurement with one single frequency ■ Measurement with one single frequency ■ Measurement in sweep mode ■ Measurement in sweep mode ET 91 performs LCL measurement using the test circuit described in ITU-T Rec. 0.9 Test results are available in graphic or numeric formats. Selectable ranges ELEKTR NIKA

Impedance Measurement with ET 91 ET 91 provides impedance measurement for balanced and coaxial test objects in fix frequency or sweep modes without any external adapter. Test results are available in graphic or numeric formats. Selectable ranges ELEKTR NIKA

Return Loss Measurement with ET 91 ET 91 provides return loss measurement for balanced and coaxial test objects in fix frequency or sweep modes without any external adapter. Test results are available in graphic or numeric formats. Selectable ranges ELEKTR NIKA

Near End Crosstalk measurement with ET 91 ET 91 provides Near End Crosstalk measurement for balanced and coaxial test objects by transmitting on socket L2 and receiving on L1. Fix frequency or sweep modes are available Test results are available in graphic or numeric formats. Selectable ranges ELEKTR NIKA

Spectrum Analyzer Measurement with ET 91 Noise Level MeasurementPower Spectral Density (PSD) Measurement ET 91 provides sophisticated spectrum analyser measurements with extremely large dynamic range and high resolution. Display range: down to -140 dBm/Hz Evaluation: NORM, PEAK, AVG, SAWG Test results are available in graphic or numeric formats. Selectable ranges ELEKTR NIKA

Quick Frequency Response Test of ET 91 with Multi Tone Test Signal MTTS METHOD : ■ The transmitter generates 35 test tones ■ The receiver measures the 35 test tones simultaneously ADVANTAGES: ■ No synchronisation is necessary between the two instruments ■ The measuring time is shorter than that of other methods Selectable ranges ELEKTR NIKA

Automatic Line Test in Master Slave Mode of ET 91 ▼ Click here to see detailed results ELEKTR NIKA

Detailed Test Results of Automatic Master Slave Line Measurement All the test results are available also in numeric form and they can be transferred to PC via USB interface. ELEKTR NIKA

Micro Interruption Measurement with ET 91 ▼ Click here to see detailed results in numeric and graphic forms An interruption is detected when the level of test tone drops below a designated threshold for more than 0,6 ms. The detected interruptions are included into five categories by duration ELEKTR NIKA

Detailed Results of Micro Interruption Measurement All the test results are available also in numeric form and they can be transferred to PC via USB interface. ELEKTR NIKA

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