200-IMLA GPS ANTENNA, INTEGRATED MULTIPATH LIMITING
Specifications
Performance Characteristics:
Type: Multipath Limiting Antenna Vertical Dipole Array
Azimuth Gain Variation from +3° to + 35° in Elevation: Omni-Directional, with Maximum Azimuth Gain Variation of < or = to ± 1.5 dB with no Phase Reversals in Azimuth or Elevation
Frequency Range: 1575.42 MHz ± 20 MHz
Array: 14 Element Cylindrical Dipole Array (57.5" tall)
Polarization: Vertically Polarized
Gain, main beam: > or = to 7 dBi, In Main Vertical Plane
Minimum Gain Between +5° to + 35° in Elevation: > or = to 0 dBi
Direction of Maximum Gain in Elevation: 12° ± 1° above Horizon
Slope (Vicinity of horizon): ˜ 3 dB/Deg
Power Handling Capability: Up To At Least 35 W Peak RF Power At 20% Duty Cycle
Impedance: 50 ohm nominal
VSWR: Not greater than 1.5:1 Measured At End Of Low Loss Cable Not Exceeding 5 Feet In Length.
Desired-To-Undesired Ratio Between 0° and 40° In Elevation: 95% Of Elevation Measurements Must Meet The Desired-To-Undesired Signal Performance Requirement Shown In Figure 3-1.
Phase Center Stability Between +3° and +35° in Elevation Angle: The Electrical Phase Center of the Antenna Must Not Vary More than ± 2 cm When Subjected to the Environmental Conditions of FAA-G-2100 Environment III. See Figure 3-2 for Phase Variation as Function of Vertical Angle.
Gain Variation from +3° to -3° in elevation at any azimuth angle: Monotonically Decreasing With No More than 3 dB Ripple.
Radome Coverage and Weather proofing: Entire Antenna weather proofed and Covered by Radome. Removal/replacement of subassemblies possible without sealing compounds.
ADA Adapter Height, Weight and Size, (other): dBs 200-ADA. Adapter for Obstruction Lights, Lightning Protection, Air Terminals and Physical Mount for dBs 200A-HZA antenna. Height 33” x Width 35" x Depth 6” x 18 Lbs. Obstruction Light Connector is MS-3112E8-3P.
High Zenith Antenna RF Cable: RG-142 B/U RF Cable Run Between HZA and Bottom of MLA Provided. HZA End of Cable has SMA Plug, MLA Bottom End of Cable Has Type N Jack. Maximum Loss of Cable Run < or = to 2.5 dB.
MLA Height, Weight & Size: 77" long x 7" Dia. x 42 lbs.
Shipping Container Height, Weight and Size: Complete Shipping Container Height 31.5” x 30.5” Wide x 130” Long x 245 lbs Weight. (excluding IMLA). Note: Pipe Adapter not Connected to IMLA during Shipment. Complete Shipping Weight 380 lbs (IMLA and Container).
Antenna Mounting: 6 each 3/8"-16 bolts on 6.0" Bolt Circle which mount MLA to Pipe Adapter. Pipe Adapter Mounts to 4” O.D. Vertical Mounting Pipe. Vertical Mounting Pipe Provided by Customer. 8 bolts for plumbing/leveling.
Wind loading: Withstands without damage 100 mile per hour gusts.
RF Feed Connectors: One Type N Jack RF port for MLA connection and one Type N Jack RF port for MLHZA connection at base of MLA antenna. Connectors located at each plate/clamp.
MLA Low Noise Amplifier: Located within Pipe Adapter. Can be Bypassed for Pseudolite Transmission. 25 dB Gain, Noise Figure < or = to 1.5 dB, 50 dB Out-of-Band Rejection, +7 to +32 VDC Input
FAA Environmental Requirements: FAA-G-2100F, Environment III
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Today's Date: Monday, February 06th 2012 12:45:28 AM MST