Three Element VDB ANTENNA, ELLIPTICALLY POLARIZED
Specifications
Performance Characteristics:
Type: Horizontally Polarized Dipole Array.
Azimuth Gain Variation: Omni-Directional, with Maximum Azimuth Gain Variation of < or = ± 1.0 dB
Frequency of Operation: 108 MHz to 118 MHz
Array: Three Element Vertically Stacked Array.
Polarization: Horizontally Polarized Only
Gain, main beam: > or = 5.0 dBi
Gain of 1st Major Sidelobe: > or = 10.0 dB Below main Beam Peak for Both Vertically and Horizontally Polarized Vertical Patterns.
Direction of Maximum Gain in Elevation: Nominally +12° (Above Horizon)
Slope (Vicinity of horizon): ˜ 0.3 dB/Deg
Power Handling Capability: Up To At Least 250 W CW.
Impedance: 50 ohm nominal
VSWR: Not greater than 2:1 (960-1215 MHz) measured at end of low loss cable not exceeding 5 feet in length.
Half Power Beamwidth in Elevation Plane: ˜ 30 Degrees
Half Power Beamwidth in Azimuth Plane: N/A – The Antenna is Omni-Directional in the Azimuth Plane
RF Monitor: Sample of Incident RF Energy is provided which is 50 dB ± 2 dB down from Main RF Input Signal Level.
Radome Coverage and Weather proofing: Entire Antenna weather proofed and sealed. Antenna does not use a Radome.
Height, Weight and Size, Obstruction Light Connector Interface: Height 186” x Width 48” (In Widest Dimension) x Depth 48” (In Widest Dimension) x 500 Lbs. Obstruction Light Connector is MS-3112E8-3P.
Antenna Mounting: 6 each 3/4" x 3” Long bolts on 12.0" Bolt Circle which mount antenna to Pipe Adapter. Pipe Adapter Mounts to 6.63” O.D. Vertical Mounting Pipe. Vertical Mounting Pipe Provided by Customer.
Wind Loading: Withstands without damage 150 mile per hour gusts
RF Feed Connectors: Two Type N Jack RF Port for Main RF Connection and Monitor Port Outputs. One Obstruction Light Connector is MS-3112E8-3P.
Obstruction Light(s): Optional dual, red lamp obstruction light fixture. Connector is MS-3112E8-3P, 13 1/2'H x 12"W x 4"D 5.3 lbs.
Connectors RF: Type N Female, 3 each.
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Today's Date: Monday, February 06th 2012 12:47:25 AM MST