RFS RADIO FREQUENCY SYSTEMS VLP SERIES

GENERAL DESCRIPTION


VERTICAL LOG PERIODIC DIPOLE ARRAYS - VLP SERIES

photo RFS Radio Frequency Systems VLP Series This range of low angle directional antennas is available in three standard frequency bands.

The VLP series can be customised or tailored to suit lower frequency operation and specific customer requirements or applications.

Designed for medium to long distance operation, these vertically polarized antennas are used with a ground mat for improved low angle performance.

Characterised by a radiation pattern that is essentially consistent at all frequencies. The VLP series rugged design ensures its suitability for wind velocities up to 230 km/hr.

Electrically steerable arrays, comprising a number of antennas radiating from a common support mast can be supplied to suit customers specifications.

TECHNICAL SPECIFICATIONS
MODEL
VLP3.5 VLP4.5 VLP5.5
Electrical
Frequency Range (MHz) 3.5 - 30 4.5 - 30 5.5 - 30
Polarization
Vertical
Input Impedance
300 ohm balanced or 50 ohm unbalanced
VSWR (Average Soil)
<2.0:1
Gain (typical)
3.5 to 8 MHz = 10 dBi
8 to 30 MHz = 14 dBi
Azimuth 3 dB Beam width (deg) 120 typical
Front/Back ratio (dB) 14 dB typical
Power Rating (kW) 10 kW average, 20 kW PEP
Mechanical
Mast Height rear (m) 48 39 30
front (m) 10 10 10
Ground area rear (width) (m) 35
front (width) (m) 12
length (m) 98 87 68
Earth Mat Area (m) 80 x 50 70 x 45 60 x 40
Wind Rating (km/hr) 230
Specifications may change without notice

AZIMUTH RADIATION PATTERNS
RFS Radio Frequency Systems VLP Series azimuth radiation patterns


ELEVATION RADIATION PATTERNS
RFS Radio Frequency Systems VLP Series elevation radiation patterns


ANTENNA PICTURE
picture RFS Radio Frequency Systems VLP Series
皇冠金花下载