Motorola R-2001D Operator's Manual page 22

TABLE 2-1. CONTROLS, INDICATORS, AND CONNECTORS
ITEM DESCRIPTION
FRONT PANEL (figure 2-1)
FUNCTION
FUNCTION switch
PUNcnON indicators
Two-position toggle
switch
Six LED's (red)
8. DVM/DIST
a. DVM - The digital voltmeter displays AC/DC
voltage readings (digital and analog) with the
corresponding dBm value on the CRT screen, in
either generate or monitor function. Select AC or
DC with the display cursor and keypad. The
screen displays battery voltage and a signal's true
RMS at the front panel DVM jack. Use the meter
to check and set power supply voltage, bias level,
and audio level.
b. DISTORTION - This mode automatically meas-
ures fixed frequency EIA Sinad/Distortion (signal
to noise and distortion ratio). The Analyzer
generates a 1 KHz tone of known quality.
Measure distortion of AM or PM transmitter
modulation. Use the distortion meter for a com-
prehensive check of a receiver's performance.
9. Ext Wattmeter - Select the element and the screen
displays the forward and reflected power passed
through that element mounted in the RTL-4055 watt-
meter adapter.
10. IF - The screen displays the 700 KHz IF signal from
the monitor receiver for AM and SSB receiver servic-
ing.
11. Scope AC - The screen displays the voltage wave-
form applied to the vertical input (AC coupled).
12. Scope DC - The screen displays the voltage wave-
form applied to the vertical input (DC coupled).
Select either generate or monitor function.
I. Generate - The equipment generates and outputs an
RF signal.
2. Monitor - The equipment monitors input signals
with the input terminated into the receive mixer. Use
this position for off-the-air monitoring.
Indicates the mode of signal the equipment is set up to gen-
erate or monitor. Select by pressing one of the arrow keys
under the FUNCTION section.
I. FM - Equipment generates or monitors frequency
modulated signals.
2. CW - Equipment generates an unmodulated RF
signal (continuous wave). Monitor position provides
only frequency error measurement.
2-4
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