 | Spectrum This view displays the spectrum of the input signal. The span is automatically adjusted to the next largest available span based on the bandwidth setting. Channel Power (RSSI) in dBm and Occupied bandwidth measurements are displayed as numerical values. Span Press this submenu key to open the Span selection dialog box. Select the desired Span for the Spectrum view using the Up/Down arrow keys or rotary knob, and press Enter. The list shows the following choices: 5 MHz, 10 MHz, 20 MHz, 30 MHz. Note: The span value is automatically adjusted to the next largest available span when the BW setting is changed. You can change the span to any of the 4 values to override the automatic selection. Back Returns to the RF Measurements menu. Power vs Time The Power versus Time view shows the time domain view of a WiMAX 802.16‑2004 OFDM signal over approximately one frame. The Channel Power in dBm, Preamble power in dBm, burst power of data bursts in dBm, and the Crest Factor are displayed as numerical values. ACPR The ACPR (Adjacent Channel Power Ratio) view shows one main channel and two adjacent channels. It displays the power levels for each channel (both absolute and relative). RF Summary Press this submenu key to display a summary of all of the RF numerical measurement results: • Channel Power (RSSI) in dBm • Data Burst Power in dBm • Preamble Power in dBm • Occupied BW in Hz • Crest Factor in dB Back Press this submenu key to return to the Measurements Menu. |