artisan 8640B - AM Distortion Test; AM Distortion Test Setup

Model 8640B TM 9-4935-601-14-7&P
PERFORMANCE TESTS
4-33. AM DISTORTION TEST
SPECIFICATION:
AM Distortion: (at 400 Hz and 1 kHz rates)
Frequency Bands 0 - 50% AM 50 - 90% AM
0.5 - 512 MHz <1% <3%
DESCRIPTION:
A spectrum analyzer (used to demodulate the AM) is connected to RF OUTPUT, and percent of AM is set; a distortion
analyzer is connected to the analyzer's vertical output and used to measure AM distortion.
Figure 4-19. AM Distortion Test Setup.
EQUIPMENT:
Spectrum Analyzer ..........................................................HP 141T/8552B/8554B
Distortion Analyzer.................................................................................HP 333A
PROCEDURE:
1. Connect equipment as shown in Figure 4-19 after setting Signal Generator's controls as follows:
Meter Function................................................................................................AM
COUNTER MODE: EXPAND ..........................................................................Off
LOCK ..............................................................................Off
Source ........................................................................... INT
AM ...............................................................................................................OFF
MODULATION .......................................................................................Full ccw
4-49
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