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GPS L1 L2 L5 GNSS High-Performance High-precision Positioning Active Antenna Multi-star Multi-frequency BDS GLONASS GALILEO - AliExpress
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GPS L1/L2 33dB Active, Waterproof, Hermetically Sealed - Antennas, GNSS/GPS High Precision, Mil Spec - pd - Step Global
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GNSS L1+L2+L5 Multi-GNSS & Multi-Frequency Active Antenna, SMA-J Connector, Supports Multi-GNSS Positioning Systems | GPS External Antenna (E)
![2: Frequency spectrum for the L1 and L2 GPS-signals. The lower picture... | Download Scientific Diagram 2: Frequency spectrum for the L1 and L2 GPS-signals. The lower picture... | Download Scientific Diagram](https://www.researchgate.net/publication/262731273/figure/fig2/AS:370232871931906@1465281803751/Frequency-spectrum-for-the-L1-and-L2-GPS-signals-The-lower-picture-shows-the-signals.png)