Aldena AST0102235

Half-wave Tuned Dipole

The FM line from Aldena includes dipoles and panel antennas for different directional or omni-directional layouts, antennas for installation on square or triangular masts or towers. All types of antenna are available in horizontal, vertical, circular or elliptical polarization.
All FM dipole antennas from Aldena are made of stainless steel or hot dip galvanized steel in order to guarantee longer-than-average durability, even in harsh climate conditions (such as high levels of pollution, air salinity or acid rain). All dipole antennas are able to be pressurized, which is a characteristic of the most complex antenna systems and it is often necessary to guarantee reliability.

• Vertical polarization • Broadband 87.5 ÷ 108 MHz • Gain 1.5dBd (3.7dBi) • Omni-directional pattern with a preferred direction • Stainless steel

ELECTRICAL FEATURES

WORKING BAND: 87.5÷108 MHz
BANDWIDTH: 0.2 MHz
GAIN:1.5 dBd (3.7 dBi)
VSWR: ≤ 1.1:1 (-26.4 dB)
POLARIZATION: Vertical (or horizontal)
IMPEDANCE: 50 Ohm unbalanced
HALF POWER BEAMWIDTH: E-Plane - 86°
H-Plane - 192°
LIGHTNING PROTECTION: All metal parts DC grounded

MECHANICAL FEATURES

MATERIALS: Antenna in stainless steel, bracket and bolts in hot-dip galvanized steel, components in aluminium, Teflon isolators, silicon O-Rings
MOUNTING: Directly on supporting structure
MOUNTING BRACKETS: Included for Ø 60÷114mm. pipe
ICING PROTECTION: Optional ABS radome on semi-dipole (code XRAST25)
TREATMENTS: Hot-dip galvanized bracket, aluminium components military grade MIL-C-5541
ANTENNA DIMENSIONS:1500x1000x60 mm (@ 98.0 MHz)
WEIGHT: 3.5 Kg
WIND SURFACE: 0.04 m2 front - 0.06 m2 side
WIND LOAD (at 160Km/h and 30° C air temperature): 3.10 Kg front - 5.17 Kg side
SURVIVAL WIND:160Km/h
PACKING DIMENSIONS: Box 1700x200x150 mm - 5 Kg gross — antenna @ 98.0 MHz