User Manual DDS200 Digital Demodulation System 070-9952-00

Manual OperationThe conversion is as follows:Unit Impedance 75 V 1 V = 10 –6 VmV1 mV = 1000 VÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ0 dBuV = 1 VdBuVÁÁÁÁÁÁÁÁdBm 0 ÁÁÁÁÁÁÁÁdBm = 108.8 dBVÁÁÁdBpw 0 dBpw = 18.8 dBVÁÁÁÁÁÁÁÁÁÁÁdB uW0 dBuW = 78.8 dBVÁÁÁÁÁÁÁÁÁÁÁMode Key. The mode key is pressed to display the MODE menu (see Figure2–22). The basic mode of the unit can be set by pressing the correspondingsoft key. All modes that can be set are represented in normal characters. Whetheror not a mode can be set depends on the hardware installed in the unit. Modeswhich are not available are displayed in italics and cannot be selected.Figure 2–22: Mode menuNOTE. The default setting selected in the MODE menu determines the overalloperation of the unit and largely defines the presentation and the function ofmany menus.DDS200 Digital Demodulation System User Manual 2–25