BAE SYSTEMS HLO SERIES

GENERAL DESCRIPTION

ROTATABLE LOG PERIODIC ANTENNA - HLO SERIES

photo BAE Systems HLO Series

The HLO430 is a high performance rotatable log periodic designed to provide reliable link establishment over short, medium and long distances with mobile stations.

Characterised by its high gain performance whilst maintaining excellent front to back ratio, the HLO is capable of providing coverage in excess of 5000 kms.

The broadband feature enables transmission over 4-30 MHz and reception within the full 2-30 MHz band. A high performance rotary joint enables continuous rotation with a complete 360° turn achieved in two minutes.

A unique design feature of the HLO is the ability to raise and lower the antenna without the use of cranes or special erection towers.

TECHNICAL SPECIFICATIONS
MODEL		HLO430
Electrical
Frequency Range	(MHz)	4 - 30 MHz for transmit, 2 - 30 MHz for receive
Polarization		Horizontal
Input Impedance		50 ohm nominal
VSWR		2.0:1 maximum
Gain	(dBi)	12 dBi nominal
Azimuth beam width	(deg)	72° nominal
Power Rating	(kW)	10 kW Av, 20 kW PEP
Mechanical
Total Height	(m)	34.5
Ground Dimensions	(m)	diameter 58
Boom length	(m)	28
Dipole span	(m)	36
Number of dipoles		14
Rotation		continuous, 1/2 turn per minute
Wind Rating	(km/hr)	230
Packed weight	(kg)	7880
Specifications may change without notice

AZIMUTH RADIATION PATTERNS

ELEVATION RADIATION PATTERNS