Motorola R-2001A Service Manual page 37

Item
DC IN power
connector
AC power connector
AC 1.5A
10 MHz std IN
connector
10 MHz std OUT
connector
488 BUS connector
Blower power
connector
4-5. OPERATION
4-6. The operator may use the CRT display to become familiar with the functions the Communication System
Analyzer is capable of performing. The unit may be preset to any of the functions the unit performs. As a
function and its parameters are selected they are displayed on the CRT.
The unit contains a nonvolatile memory that stores frequently used data for fast access, reducing setup time.
As a function is selected, if data for that function is stored, the data is displayed on the CRT.
One of the stored parameters may be used or the user may manually select (keyboard entry) the parameters
required for the function. Selection of stored data or keyboard entry of data is cursor controlled. As a control is
changed the CRT display changes to reflect the new parameter being used or function being performed.
4-7. CALIBRATE. The Communication System Analyzer may be calibrated to WWV or other
time/frequency standards (figure 4-4). To calibrate the unit's time base (frequency standard) proceed as
follows:
a. Connect antenna to RF In/Out connector.
b. Set FUNCTION switch to Monitor and DISPLAY to Gen/Mon Mtr.
c. Enter frequency of time/frequency standards station directly from keyboard.
Table 4-1. Controls, Indicators, and Connectors (Cont)
Description
4-pin connector
3-pin connector
Line fuseholder
BNC connector
BNC connector
Connects to DC prime power source
Connects to AC prime power source. Internally
patched to accommodate either 100-110 VAC,
110-130 VAC, 200-220 VAC or 220-260 VAC.
AC line fuseholder.
Provides for external 10 MHz time base input.
Equipment automatically switches to external
time base with an input at this connector.
Provides an output of the internal or external
10 MHz time base for external use.
Placement of I/O connector when IEEE-488
Interface Bus option is provided.
Placement of Blower power connector, when
Blower option is provided.
4-12
Function