23-3 OFDM Spectrum Measurement
The OFDM spectrum mode is designed to quickly analyze an OFDM channel or full-band spectrum. Press
[
CH / Full BW
]
(F1) to toggle between views.
Customizable parameters include REF (reference level), display scale, RBW, and VBW.
The spectrum display occupies panes 2 and 4 of the OFDM interface, as shown below.
Spectrum Measurement – OFDM Channel
When measuring an OFDM channel, the start frequency corresponds to the OFDM signal’s zero frequency;
spectrum span is determined by the signal’s occupied bandwidth. In the example above:
•
Start freq. = 519.6 MHz
•
Span = 204.8 MHz
Spectrum Measurement – Full-Band Spectrum
When measuring the full-band spectrum, the frequency range is fixed at 105~1220 MHz.
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