Nautel NX5 AM, Руководство по эксплуатации и техническому обслуживанию

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NX5 OPERATION & MAINTENANCE MANUAL OPERATING THE TRANSMITTER
PAGE 3.2.36 VERSION 0.1 2015-08-01
Use the left and right buttons to make fine adjustments to the cursor position.
Use the up or down button to maximize (if it was minimized) or minimize (if it was maximized) the
panel size.
Use the “peak” button to place the cursor on the next successive peak (moving left to right) in the
spectrum.
Use the “cog” button to gain access to spectrum settings (see Figure 3.2.24 ) such as:
 Resolution Bandwidth: determines the FFT bin size or the smallest frequency that can be
resolved. Set between 90 Hz and 2500 Hz (default is 300 Hz). Decreasing this value provides better
frequency resolution, but will increase the sweep time.
 Span : determines the start and stop frequencies of the analyzer with the carrier frequency always
at the center. Set between 20 kHz and 300 kHz (default is 150 kHz).
 Averages : determines the number of averages that the analyzer performs per sweep. Set between
0 and 100 (default is 19).
 Measurement Source : determines the source of the spectrum plot (transmitter output or internal)
that is being displayed. Selecting TX Output uses the exciter’s RF sample feedback signal to
display the RF output spectrum. Selecting Internal displays the exciter’s internally generated
signal.
 Clear Averaging: resets the averaged signal shown on the spectrum analyzer.
Figure 3.2.24: Spectrum Settings