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JDGA Twist-On Passive GPS Antenna -8.0db gain
Submersible Omni-Directional GPS Antenna
Ground Plane Recommended
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Jim D. Gray & Associates, Inc. |
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972-699-9976 |
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JDGA Twist-On Passive GPS Antenna provides –8dB of gain in a small quadrifilar helix package.
Twist-On Passive -8dB Product Summary GPS L1-band quadrifilar helix antenna Integral balun -8.0dB pre-amplified gain High isolation from platform rejects common-mode noise Negligible proximity de-tuning Constrained near-field does not interact with nearby components or the user Strong circular polarization Stable 50 ohm impedance Broad beam width excellent near-horizon reception Predictable performance in all modes of use Submersible to 150+ meters RoHS Compliant |
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Twist-On Passive –8dB Specifications |
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Center Frequency: |
1588MHz |
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Polarization: |
RHCP |
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Efficiency |
27% (total); 50% (hemispherical) |
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Gain: |
-8.0dB (zenith typical w/o ground plane) |
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Beamwidth: |
> 120° (typical) |
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Bandwidth (3dB) |
15MHz |
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Axial Ratio: |
< 2.0 (zenith typical) |
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VSWR: |
< 2:1 (typical) |
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Impedance: |
50 Ω |
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Op. Temp.: |
-40 to +85°C |
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Overall Dim.: |
11mm diameter x 25mm length (including SMA male connector) |
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Available connectors |
SMA male, SSMA male(Other connectors available upon request) |
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GPS Receivers & GSM / GPRS Modems |