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Linkabit

MA-445C HF/VHF/UHF DF ANTENNA

Use of U.S. DoD visual information does not imply or constitute DoD endorsement.

High-Performance Lines-of-Bearing (LOB) in a Small Tactical Package

FEATURES

• Multiple antenna elements: – Sensitive HF/Low VHF covering 2 MHz to 100 MHz array – Low-Profile switched elements array covering 100 MHz to 460 MHz – A small size UHF array covering 460 MHz to 2000 MHz

• Each antenna has an independent calibration table read by the receiver/processor on power-up

• Built-in test (BIT) oscillator to help isolate failures between antenna sections

• VHF/UHF switchable low noise, high performance preamplifier

BENEFITS

• Reduces load on warfighter by combining HF/VHF/UHF elements into a single tactical package

• Adaptable to multiple mission profiles to include: – Man-pack, tripod, vehicle to mast mounting

• Increases operational effectiveness by not requiring calibration

L3’s MA-445C HF/VHF/UHF DF antenna provides accurate direction finding (DF) over the 2 MHz to 2000 MHz frequency range in a

small and lightweight unit. The antenna was designed for use on vertically-polarized ground wave and sky wave signals. Our MA-445C

may be ground- or tripod-mounted, and can also be operated from the top of a vehicle with a metal roof using Linkabit’s optional

vehicle mounting strap. In the AN/PRD-13(V)1, (V)2 & (V)3 system configurations, a common RF/control cable is used to connect the

MA-445C to Linkabit’s SIGINT receiver/processors (MD-403A, MD-405A & MD-407).

v

Linkabit

MA-445C HF/VHF/UHF DF ANTENNA

L3 Linkabit

9890 Towne Centre Drive

San Diego, CA 92121

Tel: 858.552.9555

Fax: 858.552.9668

Product Service Help Desk: 800.331.9401

Email: LinkabitProducts@L3T.com

www.L3T.com/Linkabit

SPECIFICATIONS

PERFORMANCE CHARACTERISTICS

Frequency coverage 2 MHz to 2000 MHz

Azimuth coverage 360°

Elevation coverage, 100 MHz to 2000 MHz

0 to 60°

Bearing sensitivity1 See chart

Polarization Vertical

Output impedance 50 Ohms unbalanced

Preamplifier (100 MHz to 2000 MHz)

Selectable (In/Out)Gain: 18 dB nominalNF: 4.0 dB nominalIP3: +18 dBm minimum

Connector RF: waterproof BNC; control: sealed JT quick disconnect

PHYSICAL AND ENVIRONMENTAL CHARACTERISTICS

Size (diameter) 330 mm, 13 in.

Height (less whip) 140 mm, 5.5 in.

Weight 4.08 kg (9 lb.)

Power 1 Watt maximum at 12 VDC

Temperature Operating: –20 °C to +50 °C Storage: –40 °C to +70 °C

Humidity 0 to 100% Condensing

Altitude 4,572 m (15,000 ft.)

PART NUMBER DESCRIPTION INCLUDES

02-105608-01 MA-445C Antenna Antenna, Manuals

05-103228-01 Tripod Antenna Tripod

05-105872-01 50' RF/Control Cable Cable

05-105872-02 70' RF/Control Cable Cable

05-105872-03 10' RF/Control Cable Cable

05-105872-04 25' RF/Control Cable Cable

05-105872-05 100' RF/Control Cable Cable

03-102475-02 Tie-down Kit Antenna-mount Strap

1. Measured w i th MD-405A on tes t range , AM Demodu la to r, un-modu la ted s igna l , 6 ° RMS j i t t e r, 1 sec i n teg ra t ion . Bea r ing accuracy and sens i t i v i t y i n ope ra t iona l s i tua t ion a re sub jec t to the e f fec t o f i ns ta l l a t i on , p rox im i t y o f l a rge conduc t i ve ob jec ts , t e r ra in , and e leva t ion .

Cleared by DoD/OSR for public release under 16-S-1855 on May 3, 2016. Data, including specifications, contained within this document are summary in nature and subject to change at any time without notice at L3’s discretion. Call for latest revision. All brand names and product names referenced are trademarks, registered trademarks or trade names of their respective holders.