> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # GNSS Multi-Band L1/L2 Surveying Antenna (TNC) - TOP106 **Type:** Product page · **SKU:** GPS-17751 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia) **Page:** https://core-electronics.com.au/gnss-multi-band-l1-l2-surveying-antenna-tnc-top106.html ([markdown](https://core-electronics.com.au/gnss-multi-band-l1-l2-surveying-antenna-tnc-top106.html.md)) The TOP106 from TOPGNSS is a GNSS/GPS antenna capable of receiving the L1/L2 bands for GPS, GLONASS, Galileo, and BeiDou constellations. These 'UFO' antennas have... ## Pricing - **Price:** $409.95 (inc GST) — $372.68 AUD, exc GST - **Quantity discounts:** 5+ $361.50 (exc GST) · 25+ $354.05 (exc GST) · 100+ $339.14 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 1 today, and up to 10 more in 5–11 days. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=GPS-17751:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/GPS-17751:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description The TOP106 from TOPGNSS 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. If you can handle the extra weight and size in your application, the TOP106 is the best antenna we've played with to date. The TOP106 without RF shield is ideal for handheld surveying or portable applications. It is smaller and lighter weight than the [BT-147](https://core-electronics.com.au/gnss-multi-band-l1-l2-helical-antenna-sma-bt-560.html) weighing in at 422g.For weight sensitive applications (like RTK Drones) checkout the [BT-560 helical](https://core-electronics.com.au/gnss-multi-band-l1-l2-helical-antenna-sma-bt-560.html) 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 130mm ground plane with six hybrid couplers to obtain signal phasing which makes this design a lot more insensitive to manufacturing-imposed issues (e.g. board material with inconsistent dielectric). Note: This antenna has a TNC female connector found on nearly all surveying antennas. We recommend our [TNC Male to SMA cable](https://core-electronics.com.au/interface-cable-sma-male-to-tnc-male-300mm.html) when used 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](https://core-electronics.com.au/1-4-to-5-8-antenna-thread-adapter.html). 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](https://learn.sparkfun.com/tutorials/how-to-build-a-diy-gnss-reference-station#affix-your-antenna). **Experimental Product:** [SparkX](https://www.sparkfun.com/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. ### Features - Overall antenna weight: 335g - Bare antenna element weight (including MMCX connector, with RF shield): 160g ### Included Items - Antenna - Please note that the mount is NOT included! It has a TNC female connector thread on the base per the description ### Documents - [TOP106 GNSS L1/L2 Multiband Antenna](https://core-electronics.com.au/attachments/localcontent/TOP106_GNSS_Antenna_946868792b1.pdf) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/1/7/17587-l1_l2_gnss_antenna_top106-09.jpg)