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The function of a GPS receiving antenna is to convert the electromagnetic wave energy of the radiosignals from satellites into electrical power that can be processed by the receiver’s electroniccomponents.
Read More| Antenna | gps external antenna |
The function of a GPS receiving antenna is to convert the electromagnetic wave energy of the radiosignals from satellites into electrical power that can be processed by the receiver’s electroniccomponents.
Our GPS antenna consists of a ceramic antenna element and an active amplifier. It is enclosed in aplastic shell, offering waterproof and moisture-resistant properties. The product is compact in size, witha magnet installed at the bottom for easy installation and use.
GPS Antenna Specifications
| NO. | Item | Specification | Post-Environmental Tolerance* |
| 1 | Receiving frequency range (MHz) | 1555-1605（MHz） | ±2.5（MHz） |
|
2 |
Center frequency (with 30×30 mm²
ground plane) |
1568（MHz） |
±25（MHz） |
| 3 | Bandwidth (Return Loss ≤ -10 dB) | ≥15（MHz） | ±8（MHz） |
| 4 | V.S.W.R (at center frequency) | ≤1.5 | ±0.5 |
| 5 | Gain at zenith (with 70 ×70 mm²
ground plane) |
3.5 | ±0.5 |
| 6 | Axial ratio (with 70 ×70 mm² ground
plane) |
3.0dB | ±0.2 |
| 7 | Polarization | Right-hand circular polarization | ---- |
| 8 | Characteristic impedance | 50 | ---- |
| 9 | Frequency temperature coefficient | 0±10 | ---- |
GPS Amplifier Specifications
| NO. | Item | Specification |
| 1 | Frequency range | 1550-1610（MHz） |
| 2 | Amplifier gain | 18dB±2dB |
| 3 | V.S.W.R | <1.5 |
| 4 | Noise figure | ≤1.5dB |
| 5 | DC voltage | 2.5-5V |
| 6 | DC current | ≤10mA |
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