TM 11-6625-828-45
position from 15 through 345 (i.e. 15, 45, 60, etc.) and
ULATION switch to AMP LOC g and switch the test set
note the course indicator indication for each position. To
IDENTIFIER OFF/ON switch to OFF. Set the test set MC
TO-FROM meter should indicate TO and the reading
switch to A and set the AN/ARN-30E control unit MC
error for each switch position should not exceed + 2
control to the exact frequency of the test set A crystal.
degrees.
Check that the AN/ARN-30E course indicator needle
(14) Set the AN/ARN-30E course indicator
indicates 3 dots to the left of vertical.
to 45 degrees and set the test set OMNI TRACK switch
(19) Switch the test set IDENTIFIER switch
to 225. Check that the course indicator TO-FROM meter
to ON and check that there is no appreciable change in
the course indicator needle position from that in (18)
indicates FROM.
above.
(15) Set the AN/ARN-30E course indicator
(20) Without disturbing the test set
to 135, 225, and 315, in turn, and set the test set OMNI
ATTENUATOR V control, set the test set
TRACK switch to 315, 45, and 135 respectively. Check
that at each position the TO- FROM meter on the course
MODULATION switch to AMP LOC and switch the
indicator indicates FROM.
IDENTIFIER switch to OFF. Check that the AN/ARN-30E
(16) Set the test set ATTENUATOR V
course indicator needle indicates 3 dots to the right of
vertical.
control to 1000, the test set MODULATION switch to the
(21) Switch the test set IDENTIFIER switch
AMP LOC GO, and the test set IDENTIFIER switch to
to ON and check that there is no appreciable change in
OFF. Check that the needle of the AN/ARN-30E course
the course indicator needle position from that in (20)
indicator indicates vertically 1/32 inch.
above.
(17) Switch the test set IDENTIFIER switch
(22) Disconnect all power from the test set-
to ON and check that there is no appreciable change in
up, and disconnect and remove all test equipment from
the course indicator needle position from that in (16)
the test set.
above.
(18) Without disturbing the test set
ATTENUATOR RV control, set the test set MOD-
5-6