i d e n t i c a l with the 437S-l/lA radome (antenna
features of some of the minor assemblies are
r a d o m e ) except that the base of the CW-972/
a. Case, Test Set CY-6419/ARM-l15 is of
ARM-115 radome has one access hole on each of
the two sides; the 437S-1/lA radome does not.
fiberglas construction, has a handle for ease in
h. Ground Plane MX-8000/ARM-115 provides a
carrying and, along with the test set cover, con-
standard ground when the test requires call for
tains all the components of the AN/ARM-115.
b. Cover, Test Set CW-973/ARM-115 is of
a ground to be used. It provides an installation
for the 437S-1/1A antenna, or 437S-1/a coupler
fiberglas construction and, in conjunction with
with test radome, which simulates actual
the test set case, provides housing for all the
radiating conditions while the testing is being
components of the AN/ARM-115.
c. Cable Assembly, Interconnect Control CX-
10776/ARM-115 is fitted with connectors CPN
1-11. Additional Equipment Required
3716241000 and CPN 3716411000, one at each
The following eqipment is not supplied as part of
end, and connects from the AN/ARM- 115 control
Test Set, Antenna AN/ARM- 115 but is required
panel to the unit under test. If provides for con-
trol of the unit under test when the unit is tested
for use with it.
a. Power Supply. 28-volt power supply with an
on the ground plane. It is also used in making a
output current rating of 0 to 3 amperes is re-
check of the AN/ARM-115.
d. Cable Assembly, Interconnect RF CG-
quired for power to the test set.
b. Test Coupler. This is a 437S-l/1A coupler
1 8 9 3 A / U is fitted with one connector CPN
which is known to be operating properly. It is
3579292000 on each end and connects from the
A N / A R M - 1 1 5 control panel to the unit under
required to provide a motor pulsing signal for a
tune indicator check and to aid in other checks of
test. It provides for radio frequency (rf) power to
the unit under test when the unit is tested on the
ground plane. It is also used in making a check of
AN/USM-140 or equivalent) is required to ob-
e. Two power source cables (one red and one
serve waveforms at various points on the 437S-
l / l A antenna and test coupler during testing.
black) are provided to connect the 28-volt power
d. Vhf/Fro Radio Set. A vhf/fro radio set (Radio
s u p p l y to the 28V INPUT jacks on the AN/
Set AN/ARC-131), or equivalent) is required to
ARM-115 control panel.
f. Two test leads (one red and one black) are
generate an rf signal of approximately 10 watts
at frequencies between 30 megahertz (MHz) and
provided to connect the MV OUTPUT jacks on
the AN/ARM-115 control panel to the 437S-1/lA
A m u l t i m e t e r ( M u l t i m e t e r
coupler or to the test coupler.
g. Radome CS-972/ARM-115 is a combination
ME-26D/U, or equivalent) is required to make
a n t e n n a / r a d o m e assembly which consists of a
u n i t under test.
f. Cable Assembly. A cable assembly (Cable
fiberglas blade-type radome (fig. 1-1). The test
radome is filled with foam rubber to add to its
6 6 2 5 - 0 0 - 9 3 5 - 0 3 3 2 ) is required to connect the
strength, and its leading edge is protected from
vhf/fro radio set to the RF INPUT jack on the
abrasion and wear by an erosion boot which is a
TS-2642/ARM-115 control panel.