ANTENNA PRODUCTS CORPORATION LPH-89

GENERAL DESCRIPTION


ROTATABLE, HORIZONTAL POLARIZATION, LOG PERIODIC, MIL TYPE NUMBERED - LPH-89

photo Antenna Products Corporation LPH-89 Applications

The LPH-89 provides excellent reliability in medium to long range HF circuits. The rotatable antenna allows high-power communications between a fixed station and mobile station, such as ships, aircraft, or tactical deployments.

Features

The LPH-89 is a heavyweight rotatable log periodic antenna which has unique six-way guying that gives the twin towers added rigidity in hurricane-force winds. A base-mounted balun matches the 200 ohm antenna to the customer's 3-1/8 inch, 50 ohm input.

Characteristics

The LPH-89 (Military Type AS-3482/GRC) is a heavy-duty, 4-30 MHz rotatable log periodic antenna produced to U.S. Air Force and Navy standards. The alumoweld strand radiating array is completely factory preassembled with well-rounded swaged fittings enhancing reliability and high power capability. The top-mounted rotator can seek at 0.4 rpm any selected azimuth allowing for rapid acquisition of a mobile communications target. The three support booms are constructed of 6061-T6 aluminium for high strength, low weight, and good corrosion resistance.

Equipment Supplied

Radiation array, three support booms, rotator twin towers and guys, feedline, balun transformer, and remote control.

Optional Equipment

Obstruction lights, climbing devices, electric erection winch, erection kit, and computer interface.

TECHNICAL SPECIFICATIONS
MODEL
LPH-89 LPH-89I
Frequency Range
4 - 30 MHz 2 - 30 MHz
Power Capability
25 kW avg/50 kW PEP 10 kW avg/20 kW PEP
Input Impedance
50 ohm unbalanced 50 ohm unbalanced
VSWR
2:1 maximum 2:1 maximum
Input Connector
3-1/8" EIA 3-1/8" EIA
Gain 4-6 MHz
9 dBi 9 dBi
6-30 MHz
12 dBi 12 dBi
Front-To-Back-Ratio 4-6 MHz
10 dB minimum 10 dB minimum
6-30 MHz
14 dB minimum 14 dB minimum
Side Lobes
13 dB 13 dB
Rotation
±180°, seeks azimuth at 0.4 rpm ±180°, seeks azimuth at 0.4 rpm
Wind Loading
150 mph, no ice
90 mph, 1/2" ice		 150 mph, no ice
90 mph, 1/2" ice
Erected Dimensions (HxLxW) 92 ft x 182 ft x 160 ft 92 ft x 182 ft x 160 ft
Radius of Rotation
70 ft 70 ft
Shipping Weight
17,000 lbs 17,000 lbs
Shipping Volume
970 cu ft 970 cu ft
Specifications may change without notice

AZIMUTH RADIATION PATTERNS
Antenna Products Corporation LPH-89 azimuth radiation patterns


ELEVATION RADIATION PATTERNS
Antenna Products Corporation LPH-89 elevation radiation patterns