ALYX ANTENNA GUIDE
ANTENNA PRODUCTS CORPORATION LPH-9/30/24


GENERAL DESCRIPTION


ROTATABLE, HORIZONTAL POLARIZATION, LOG PERIODIC - LPH-9/30/24

photo Antenna Products Corporation LPH-9/30/24 Applications

The LPH-9, LPH-30, and LPH-24 rotatable log periodic antennas provide excellent reliability in medium to long rang HF communications circuits.

Features

The rotatable LP has high gain, azimuth selection, high power capability and allows communications between a fixed station and mobile stations such as ships, aircraft, or tactical deployments.

Characteristics

The antennas consist of tubular step-tapered aluminium elements and a horizontal aluminium boom supported atop a galvanized steel rotating mast. The twin-guyed galvanized steel towers restrain the mast laterally. A base-mounted rotator supports and rotates the mast and array. A rotary joint allows continuous rotation.

Equipment Supplied

Array, mast, twin towers and guys, rotator remote control, rotary joint, anchors, and erection kit without winch.

Optional Equipment

Obstruction lights, ladder climbing devices and winch. Coaxial cable, connector adapters and mating adapters. Computer controller with RS-232 interface.

TECHNICAL SPECIFICATIONS
MODEL
LPH-9 LPH-30 LPH-24
Frequency Range
6.5 - 30 MHz 6 - 30 MHz 4 - 30 MHz
Rotation Speed
.5 rpm .5 rpm .3 rpm
Maximum Height (H) 87 ft 87 ft 87 ft
Boom Length (L) 66 ft 66 ft 116 ft
Longest Element (E) 76 ft 82 ft 123 ft
Tuning Radius (R) 54 ft 57 ft 72.5 ft
Shipping Weight (lbs.) 8,700 9,000 14,000
Shipping Volume (cu. ft) 580 580 700
Military Nomenclature
AS-1862/FRC - AS-2978/GRC
Gain
13 dBi
Back and Side Lobe
20 dB nom, 14 dB min
Power Capability
25 kW avg./50 kW PEP
Input Impedance
50 ohm unbalanced
Azimuth Beam Width
Typically 65
VSWR
2:1 maximum
Input Connector
1-5/8" EIA
Wind Loading
120 mph or 80 mph with 1/4" ice
Specifications may change without notice

ELEVATION RADIATION PATTERNS
Antenna Products Corporation LPH-9/30/24 elevation radiation patterns