--- title: How to Connect and configure a reference antenna Captivate CS20 description: How to Connect and configure a reference antenna Captivate CS20 --- [Skip to content](https://knowledgebase.globalsurvey.co.nz/how-to-connect-and-configure-a-reference-antenna-captivate-cs20#main-content) [![logo](https://knowledgebase.globalsurvey.co.nz/hs-fs/hubfs/logo.png?width=372&height=85&name=logo.png)](https://www.globalsurvey.co.nz) Open main navigation Close main navigation Welcome to the Knowledgebase - How can we help? - There are no suggestions because the search field is empty. 1. [Welcome to the Global Survey Knowledgebase](https://knowledgebase.globalsurvey.co.nz/?hsLang=en) 2. [Surveying](https://knowledgebase.globalsurvey.co.nz/surveying?hsLang=en) 3. [Leica Captivate Software](https://knowledgebase.globalsurvey.co.nz/surveying?hsLang=en#leica-captivate-software) # How to Connect and configure a reference antenna Captivate CS20 *This guide assumes that a radio RTK Profile and suitable Working Style are already configured.* Turn on the CS20 controller and GS reference antenna Create a job using the correct coordinate system and height datum to match your control From the apps carousel, select Switch to Base **Initial Configuration from scratch (first time use)** Select Settings – Connections – Connect to GS Base 1. Select the correct Sensor 2. Connect using Bluetooth 3. Search (F4) 4. Highlight the correct antenna – OK – OK 5. If a message appears “ 6. After a few seconds the antenna is connected Select Settings – Connections – All other Connections ![](https://knowledgebase.globalsurvey.co.nz/hs-fs/hubfs/undefined-Jul-19-2023-01-00-26-0617-AM.png?width=326&height=195&name=undefined-Jul-19-2023-01-00-26-0617-AM.png) 1. Highlight Base RTK1 – EDIT 2. Tick the box to Transmit RTK data 3. Connect Using – GS Radio 4. Device (F4) Select the Satel radio modem from the list – OK *If a message appears saying the radio is already in use, create a New (F2) radio and append the Name with ‘base’, then Store and OK* 1. RTK Data Format – Leica 4G (or as required to match your rover) – OK 2. Select Control (F4) ![](https://knowledgebase.globalsurvey.co.nz/hs-fs/hubfs/undefined-Jul-19-2023-01-01-15-2673-AM.png?width=345&height=205&name=undefined-Jul-19-2023-01-01-15-2673-AM.png) Choose the channel (to match your rover) Choose the protocol – Satel 8-FSK (or as required to match your rover) OK – OK Settings – GS Base – Satellite Tracking 1. 1. Tick all the boxes – OK **Starting the base** Base Setup - Over Known Point – where the base coordinate is known Select the base antenna type 1. 1. For GSxx Tripod setups, measure height to the white line using the height hook. For other setups (eg GSxx Pole), measure a vertical distance to the lowest point on the antenna collar Select the base antenna type 1. 1. For GSxx Tripod setups, measure height to the white line using the height hook. 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