Motorola R-2002A Manual page 33

Table 4-1. Controls, Indicators, and Connectors (Cont)
Item Description Function
Type N connector RF In/out connector RF input in the power monitor or monitor
mode, RF output in the generate mode.
Potentiometer
RF Level Variable
Vernier control of RF output level. Exceeding
control the AM limit marking in AM generation mode
-
may result in a distorted output
14-position ganged RF Level Step Ten dB per step control of RF output level
atten and switch switch in generate mode. Also serves as RF input
level step attenuator in monitor and spectrum
analyzer modes.
Ext Wattmeter Connector Allows input from Motorola ST-1200 series in-
line wattmeter elements for measurement and
CRT display of forward and reflected trans-
mitted power.
Freq Set controls Stacked concentric Controls the duplex generator output frequency
potentiometers in the Duplex Generation mode.
• Coarse
Inside (small) control Coarse frequency control.
knob
• Fine
Outside (large) control Fine frequency control.
knob
Frequency offset Three-position switch Selects the offset of the transmitted frequency
control (0-10 MHz/Off from the selected receive frequency (Image/
/45 MHz)
Dplx switch determines side of selected
frequency the offset will be). 0-10 MHz position
allows frequency offset to be varied between
0-10 MHz. In the 45 MHz position the offset
is variable over a small range around 45 MHz
with the use of the Fine frequency control.
Output connector BNC connector Output connector for duplex generator output.
SIDE PANEL (fig. 4-2)
Frequency Standard Potentiometer Allows calibration of the time base frequency
control (freq std)
REAR PANEL (fig. 4-3)
BATT SA Line fuseholder (5 amp) Battery charger output line fuseholder.
DC SA
Line fuseholder (8 amp) DC Input line fuseholder
,...
4-11