ARC-182\(V\) radio set. The antenna is an aircraft fuselage mounted blade enclosed element. The antenna is a broadband, fix tuned, exhibits omnidirectional radiation pattern, and is vertically polarized for radiating and receiving radio waves in the 30-88 MHz, 108-174 MHz, and 225-400 MHz communication bands.

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MIL-DTL-85670D

3.4.8 Nameplates and identification marking. Serial number assignment and nameplate approval shall be in

accordance with MIL-DTL-18307. Identification marking shall be in accordance with MIL-STD-130. Nameplates and

identification markings shall include the following information:

Unit name (Broadband Antenna).

PIN (AS-3191/A, AS-3792/A, or AS-3793/A).

Contract number.

Manufacturer's CAGE code number.

Equipment drawing number.

Acquiring activity.

g. All major units and parts of the antenna must be preserved, packaged, packed, and marked in accordance

3.4.8.1 Serial number. Serial numbers will be assigned for the antenna under contract or purchase order. The

contractor shall serialize sequentially all antennas which are delivered under the contract.

3.4.9 Radome/casting. The radome shall be type 1 (low frequency radomes: radomes used at or below 2.0 GHz),

grade A (primary radomes), class 1 (flight vehicles). Any alloy castings used must be in accordance with MIL-E-5400

or best manufacturing practices. Castings shall be class 4 [equipment designed for 100,000 feet. altitude and

continuous sea level operation over the temperature range of -54� C to +125 �C.( +150 � C intermittent operation)].

3.5 Performance. Unless otherwise specified herein, values set forth to establish specified performance apply to

performance under both standard and extreme service. When reduced performance under the extreme conditions is

acceptable, tolerances or values setting forth acceptable variations from the performance under the standard

conditions will be specified herein.

3.5.1 Operation. The antenna shall be a universal blade type capable of being used in aircraft equipped with the

AN/ARC-182(V) Radio Set. The antenna shall be an aircraft fuselage mounted blade enclosed element. The

antenna shall be broadband fix tuned, which shall exhibit omnidirectional radiation pattern, and shall be vertically

polarized for radiating and receiving radio waves in the 30 - 88 MHz, 108 - 174 MHz, and 225 - 400 MHz

communication bands. Additionally, the antenna shall be compatible with associated equipment listed in table VII and

satisfy the detailed requirements of 3.6.

3.6 Detailed requirements.

3.6.1 Function. The AS-3191/A, AS-3792/A, and AS-3793/A broadband antennas shall be aircraft fuselage

mounted blades with enclosed elements, for universal installation. The blades shall meet the functional requirements

3.6.2 Side loading. The antenna shall be designed to withstand a functional side-loading stress of 5.3 PSI and an

ultimate side-loading stress of 8.0 PSI.

3.6.3 Bandwidth. The electrical performance specified herein shall be met over the entire frequency bands (30 to

88 MHz, 108 to 174 MHz, and 225 to 400 MHz).

3.6.4 Voltage standing wave ratio (VSWR). The antenna VSWR shall be not greater than 2.5:1 in the 30 - 88 MHz

band and the 108 - 118 MHz portion of the 108 - 174 MHz band; and shall be not greater than 2.0:1 in the 118 - 174

MHz portion of the 108 - 174 MHz band and in the 225 - 400 MHz band when measured at the antenna connector

and referenced to a 50 ohm impedance. VSWR measurements shall be performed with the antenna mounted on a

10 foot square (min) ground plane.