RTX RTX2018, Руководство пользователя

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Date: 09-May-2019
Product name RTX2018
File : RTX2018 User Manual 1.0.docx Ref.: FHA Page: 22 of 34
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Unauthorized copying is not allowed. The information in this document is believed to be correct at the time of writing. RTX A/S
reserves the right at any time to change said content, circuitry and specifications.
Figure 10. TX GFSK measurement tab
The setup interface is quite similar for both tabs and therefore, a common description is given
in the next section.
5.3.1
TX Measurement Setup
The “Expected Power” is a configuration value for the CMW100. The “ Expected Power ” should
be set close to the measured TX power. The dynamic range of the CMW100 ADC (Analog to
Digital Converter) is adjusted based on the expected power value.
If the “Expected Power” is too low, the ADC will go into saturation a nd a “Signal O verload” wil l
occur.
All captures of measurement signals are triggered on the positive power flank as seen in
Figure
11
below.
Expected Power
Trigger Offset
Power
Time
Trigger Gap (>10 us)
Capture Time Start [us]
Trigger Point
Evaluation Window
Eval. Start [us]
Evaluation Window Stop [us]
Without b0 Search
Capture Time Stop [us]
Figure 11. Capture and evaluation timing in the RTX2018 without b0 search.