TM 11-6625-1702-12
OPERATING INSTRUCTIONS
t i o n s of the controls, indicators, and connec-
3-1. Controls, Indicators, and Connectors
T h e chart below lists and indicates the func-
t o r s on the AN/ARM-115 (fig. 3-1).
Control, indicator, or connector
Function
MV OUTPUT () jack ------------------------
Provides a plus or minus 0- to 500-mv output for testing the unit
u n d e r test.
MV OUTPUT (COMMON) jack ------------------------
Provides a dc common for the 0- to 500-mv output.
Coupler
mount
---------------------------------------
P r o v i d e s a mount for the unit under test. Mount consists of four
m o u n t i n g studs fastened to the control panel and a mounting
guide line etched into the control panel.
P r o v i d e s a power connection for the unit under test.
POWER-------------------------------------------------
Provides an rf connection for the unit under test.
RF-----------------------------------------------------------------
P r o v i d e s connections for control of the unit under test when the
POWER CONTROL OUTPUT----------------------
unit is tested on the ground plane (interconnected to unit under
t e s t , using W1).
Provides connections for rf power to the unit under test when the
RF OUTPUT---------------------------------------------------------
unit is tested on the ground plane (interconnected to unit under
t e s t , using W2).
P r o v i d e s connections for monitoring the external tune indications
MOTOR PULSING SIGNAL--------------------------------
P r o v i d e s connections for rf power source used to test the unit
RF
INPUT-----------------------------------------------------------
u n d e r test.
28V INPUT (+) red---------------------------------------------
Provides connections to external 28-volt power source.
Provides connection to external 28-volt power source common.
28V INPUT () black------------------------------------
Provides protection for the 28-volt power source.
FUSE 2 AMP-------------------------------------------------
Provides the results of tests to the unit under test.
Microammeter- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Provides an indication when the unit under test is tuning.
TUNE INDICATOR - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
U s e d to accurately adjust the 0- to 500-mv source.
MV ADJUST control- - - - - - - - - - - - - - - - - - - - - - -
RF SELECT switch- - - - - - - - - - - - - - - - - - - - - - - -
Used to couple the rf power to the control panel RF plug or the
RF OUTPUT jack.
MANUAL TUNE switch- - - - - - - - - - - - - - - - - - - - - - - -
Used to manually control the direction of tuning the antenna
s e r v o m o t o r . This toggle switch has a center OFF position.
METER FUNCTION
(8-position
rotary)
Used to select the different test voltages and to measure standing
switch.
Action
Switch position
28VDC----------------------------------
Provides for measurement of 28-volt source.
FWD (RF POWER 10W SCALE) - - - - - - - - - - - - - - - - -
P r o v i d e s for forward power measurement of up to a 10-watt rf
p o w e r source.
P r o v i d e s for reflected power measurement of up to a 10-watt rf
REF (RF POWER 10W SCALE)- - - - - - - - - - - - - - - - - - - - - - -
power source.
OFF - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
T u r n s metering circuit off.
REF (RF POWER 35W SCALE) - - - - - - - - - - - - - - - -
P r o v i d e s for reflected power measurement of up to a 35-watt rf
power source.
FWD (RF POWER 35W SCALE) - - - - - - - - - - - - - - -
P r o v i d e s for forward power measurement of up to a 35-watt rf
p o w e r source.
0-500 MV (+) - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
P r o v i d e s for selection and measurement of positive 0- to 500-
millivolt power source.
0-500 MV () - - - - - - - - - - - - - - - - - - - - - - - - - - - -
P r o v i d e s for selection and measurement of negative 0- to 500-
millivolt power source.