3.0 GHz Spectrum Analyzer GSP830 User Manual

3.0 GHz Spectrum Analyzer GSP830 User Manual
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3.0 GHz Spectrum Analyzer GSP830 User Manual

  • AMPLITUDE 57 Set Input Impedance Select input impedance (50Ω/75Ω) Background In most cases, the default 50Ω is appropriate. Use 75Ω when specifically required, such as in cable TV signals. 1. Press the Amplitude key. Amplitude 2. Press F6 (More). MoreF 6 Panel operation 3. Press F1 (Input Z 50Ω/75Ω) to select the impedance. 4. When 75Ω is selected, the amplitude icon appears at the bottom of the display. Set impedance offset (75Ω only) Background Impedance transformation to 75 Ω is also available through external devices such as impedance converter module (optional accessory ADP-101). In these cases an external loss will be induced. Impedance offset can compensate this effect. 1. Press the Amplitude key. Amplitude 2. Press F6 (More). MoreF 6 Panel operation 3. Make sure 75Ω is selected in F1 (Input Z). 4. Press F2 (Input Z Cal). Input Z Cal5.9dBF 2 5. Enter the offset using the Numerical keys and dB or Enter key. BK SPdBEnterGHz /SecmSecMHz /kHz / Secμ Range −10dB to +10dB, 0.1dB resolution