|Table of Unit Indicators
||Examples of use
||Support for antennas
||Antenna mounts, mast bases, mast sections, towers, etc.
||Power, audio, interphone, radio frequency, video, electronic control, etc.
||Antenna, simple and complex
||Arrays, parabolic type, masthead whip or telescopic loop, dipole, reflector, etc.
||Battery, primary type
||Batteries, battery packs, etc.
||Battery, secondary type
||Batteries, battery packs, etc.
||Control box, remote tuning control, etc.
||Computers auxiliary units
||Input/output peripheral, etc.
||Cable assemblies, RF
||RF cables, waveguides, transmission lines, etc., with terminals
||Complex controlling devices
||Compares two or more input signals
||Electrical and/or mechanical compensating, regulating or attenuating apparatus
||A mechanical and/or electronic mathematical calculating device
||Impedance coupling devices, directional couplers, etc.
||Electronic apparatus for changing the phase frequency, or from one medium to another
||Cable assemblies, non RF
||Non RF cables with terminals, test leads, also composite cables or RF and non RF conductors
||Cases and cabinets
||Rigid and semirigid structure for enclosing or carrying equipment
||RF and non RF test loads
||Devices for authentication and transferring recorded or generated data over transmitter/receiver links.
||Magnetic, capacitive or optical pickup devices, search coil, hydrophones, etc.
||All types that are external devices for computers, test sets, etc.
||Electronic types, back-pass, low pass, band suppression, noise telephone, filter networks; excludes non-repairable types
||Electrical, electronic and communication
||Frequency measuring device
||Frequency meters, tuned cavity
||Electrical power generators without prime movers (see PU)
||Instruments for measuring angles for determination of energy transferred from moving to fixed coil (directional) antennas, etc.
||Head, hand and chest sets
||Heating, cooling, dehumidifying, pressure, vacuum devices, etc.
||Indicator units, non-cathode ray tube
||Calibrated dials and meters, indicating lights, etc. (see also IP)
||Intensity measuring devices
||Includes SWR gear, field intensity noise meters, slotted lines, etc.
||Indicator units, cathode ray tube
||Azimuth, elevation, panoramic, etc.
||Interconnecting and junction units, etc. Do not use if a more specific indicator applies.
||Units generating a pseudorandom sequence of cryptovariables using algorithms
||Mechanical, electrical and electronic key coders, interrupters, etc.
||Communication, electrical, etc.
||Separately housed loudspeakers and intercommunication stations
||Radio, telephone, throat, hand, etc.
||Modulators, demodulators, discriminators
||Devices for varying amplitude, frequency or phase
||Multimeter, vacuum tube voltmeters, power meters, volt-ohm-millimeters, etc.
||Maintenance, modification, etc.
||Miscellaneous meteorological equipment, etc.
||Units that perform two or more functions
||Mountings, racks, frames, stands, etc.
||Equipment not otherwise classified. Do not use if a better indicator is available.
||Master frequency, blocking, multi-vibrators, etc. (for test oscillators, see SG)
||Test oscilloscope for general test purposes (see IP)
||Plug-in units not otherwise classified
||Non-rotating machine types, such as vibrator pack rectifier, thermoelectric, etc.
||Mapping and plotting units
||Electronic types only
||Rotating power equipment, motor-generators, dynamotors, etc.
||Receivers, all types except telephone
||Sound, graphic, tape, wire, film, disc, facsimile, magnetic, mechanical, etc.
||Relay assembly units
||Electrical, electronic, etc.
||Mechanism for dispensing and rewinding antenna or field wire cable, etc.
||Sound, graphic, tape, wire, film disc, facsimile, magnetic, mechanical, tape, and card punch, etc.
||Sound, graphic, tape, wire, film, disc, facsimile, magnetic, mechanical, punched tape and card readers, etc.
||Target, confusion, etc., except antenna reflectors (see AS)
||Receiver and transmitter
||Radio and radar transceiver, composites of transmitter and receiver, etc.
||Electrical equipment, etc.
||Manual, impact, motor driven, pressure operated, electronic, etc.
||Telephone, fire control, power distribution, etc.
||Test oscillators, noise generators, etc. (see O)
||Flight, aircraft, target, signal, etc.
||Equipment to coordinate two or more functions
||Devices performing unique functions
||Electro-optical units, such as night vision, scope, sights, auto-collimator, viewers, trackers, alignment equipment
||Devices that secure voice transmission/receiving equipment
||Transmitters, all types except telephone
||Miscellaneous telephone equipment
||Hydrodynamic enclosures used to house transducers, hydrophones, and other electronic equipment
||Mechanical and electronic timing devices, range devices, multiplexers, electronic gates, etc.
||When used as separate units
||Tilt and/or train assemblies
||Miscellaneous telegraph items
||Receiver, transmitter, antenna, tuning units, etc.
||Test and measuring equipment not otherwise classified. Do not use if more specific indicators apply.
||Teletypewriter and facsimile apparatus
||Teletype, tape, facsimile miscellaneous equipment
||Preprogrammed with operational test and checkout data
||Carts, dollies, vans peculiar to electronic equipment
||Impedance measuring devices
||Used for measuring Q, C, L, R, or PF, etc.