TB 43-0123
TABLE III
UNIT INDICATORS
GROUP
IND.
FAMILY NAME
EXAMPLE OF USE
AB
Supports, antenna
Antenna mounts, mast bases, mast sections, towers
AM
Amplifier
Power, audio, interphone, RF, video, electronic control
AS
Antennas, simple and complex
Arrays, parabolic, masthead, whip, dipole, reflector
BA
Battery, primary type
B batteries, battery packs
BB
Battery, secondary type
Storage batteries, battery packs
BZ
Alarm units
A types
C
Controls
Control box, remote tuning control
CG
Cable assemblies, RF
RF cables, waveguides, transmission lines, terminals
CM
Compares two or more input signals
CN
Compensators
Electrical and/or mechanical compensating, regulating or
attenuating apparatus
CP
Computers
Mechanical and/or electronic mathematical calculating devices
CU
CV
Converters (electronic)
Electronic apparatus for changing the phase, freq., or from "one
medium to "another'
CW
Radomes
Radomes
CX
Cable assemblies, non RF
Non RF cables w/terminals, test leads, also composite
cables of RF and non RF cond.
CY
Cases and cabinet
Rigid and semirigid structures for enclosing or carrying
equipment
D
Dispensers
Chaff
DA
Load, dummy
RF and non RF test loads
DT
Detecting heads
Magnetic pickup device, search coil, hydrophone
F
Filter units
Electronic types; band-pass, low pass, band suppression, noise,
telephone, filter networks; excludes non-reparable types
FR
Freq. measuring devices
Freq. meters, tuned cavity
G
Generators, power
Electrical power w/o prime movers
H
Head, hand, chest se
Includes earphone
HD
Environmental apparatus
Heating, coiling, dehumidifying, pressure, vacuum devices
ID
Indicator units, non-cathode-ray
Calibrated dials and meters, indicating lights
tube
IM
Intensity measuring devices
Includes SWR gear, gield intensity and noise meters, slotted lines
IP
Indicator units, cathode-ray tube
Azimuth, elevation, panoramic
J
Interface units
Interconnecting and junction units
KY
Keying devices
Mechanical, electrical and electronic keyer, coder, interrupters
LS
Loudspeakers
Separately housed loudspeakers, intercommunication stations
M
Microphones
Radio, telephone, throat, hand
E-4
