l. Briefly explain the function of the \"SPAN\" etting on the Spectrum Analyzer.
ID: 2079027 • Letter: L
Question
l. Briefly explain the function of the "SPAN" etting on the Spectrum Analyzer. 2. Setup a Mathcad file to perform the calculations shown below. You may want to check for correctness against a hand calculator. (Note: You may find a similar file on the WAMI web page, however, it is suggested you set this up for yourself to gain experience with Mathcad file manipulations) 3. If a 1GHz RF signal is measured on a spectrum analyzer to have an amplitude of -3dBm, what is the corresponding power in mW and Watts? Power mW Watts 3. If an RF power level for a sinusoidal signal is determined to be 200 mW across a 50 ohm termination, calculate the peak voltage V and the root mean-square (RMS) voltage V Peak RMS. Volts Vrms Peak RMS 4. If an oscilloscope is used to display a sinusoidal RF signal in the time domain and the peak voltage is measured as V PEAK 20mV. What is the corresponding RF power level in mW and dBm, assuming that the input impedance of the Oscilloscope is set to 75 ohms?Explanation / Answer
1. Pressing the SPAN button brings up the frequency span menu. Here you select the frequency
span displayed on the screen (as opposed to selecting start and stop frequencies), and can
select span zoom, zero span, and full span.
At zero span, or no frequency sweep, the spectrum analyzer will display the time domain input.
For example: The Tektronix spectrum analyzer has a span range from 1kHz/div – 180Mhz/div
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.