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GNSS Multi-Band L1/L2 Surveying Antenna (TNC) BT-147

This product has been retired. It is a superb antenna but we found the TOP106 to be slightly better in terms of manufacturing quality and performance.

The BT-147 is a GNSS/GPS antenna capable of receiving the L1/L2 bands for GPS, GLONASS, Galileo, and BeiDou constellations. These 'UFO' antennas have incredible performance for the money. The antenna has a built in ground plane with significant filtering and amplification of both L1 and L2 frequencies for all GPS, GLONASS, and BeiDou satellites. Excellent for surveying or fixed antenna applications.

For automobile applications please see our u-blox ANN-MB-00 GNSS antenna. For weight sensitive applications (like RTK Drones) checkout the BT-560 helical GNSS antenna.

Designed for the latest u-blox F9 platform it provides a fast, easy, and reliable multi-band antenna solution but can be used with any GPS/GNSS receiver that can benefit from the L1/L2 dual reception. While this antenna works great with normal L1 GPS/GNSS receivers it will not make your $20 receiver into a $200 receiver. Please check your receiver to verify it is capable of using the L1 and L2 signals that this antenna outputs.

We disassembled a unit because we love to see how things work! The antenna incorporates a 135mm ground plane with a dual stacked element design. The rear of the antenna has a large RF shield that we painstakingly removed to show the circuit design that nests two progressive-phase four-way power dividers.

Note: This antenna has a TNC female connector found on nearly all surveying antennas. We recommend a TNC Male to SMA adapter or cable when using with our GNSS receivers.

Note: This antenna uses a standard 5/8"-11TPI (threads per inch) connector found on surveying equipment. This is not compatible with a camera tripod. We recommend a 5/8" to 1/4" tripod adapter. You can also find 5/8"-11TPI threaded rod in most hardware stores in North America. For information about permanently fixing this antenna to a roof, please see our tutorial on How to Build a DIY GNSS Reference Station.

Experimental Product: SparkX products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our forum for support or to ask a question.
  • Overall antenna weight: 473g
  • Bare antenna element weight (including MMCX connector): 124.5g


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Julian Blanco / about 3 years ago / 1

    (like RTK Drones) checkout the BT-560 helical GNSS antenna. Any chance the linked could be fixed in the description?

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