Unit Description (18-0015) AM-48 Test Set
0015-S033-8
2
Display Select . Three-position toggle switch. This
determines what is being viewed on the display.
• Set <ABS> to view MEASUREMENT mode in
absolute
reference.
• Set <REL> to view MEASUREMENT mode in
relative
reference.
• Set <SEND> to view the SEND mode.
See ¶7.22 and 8.2 for explanation of absolute and relative
measurements.
3
Two-position toggle switch. This switch has a dual
function:
A. Controls the display damping. <DAMP> gives a
display update of two times per second (used with
widely fluctuating signals to update the display more
often for better sampling of the measurement).
<OFF> gives a display update of four times per
second.
B. Controls the monitoring point of the receive monitor
speaker (<MON RCV> position of Switch 14).
<DAMP> gives a monitoring point at the output of the
auto-range amplifier, significantly increasing the
spaeker level.. See Figure 9-1 for a block diagram
showing how this switch interacts with Switch 14.
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