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Update correction_sources.md
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docs/correction_sources.md

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@@ -58,4 +58,4 @@ Torch: ![Feature Supported](img/Icons/GreenDot.png)
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The European Union launched a free correction service called [High Accuracy Service](https://www.gsc-europa.eu/galileo/services/galileo-high-accuracy-service-has) or **HAS** starting in 2023. The service is delivered over the E6 frequency. In general, this service will greatly improve accuracy to receivers but is lower accuracy than an OSR or SSR-based RTK Fix. Additionally, a receiver can take up to 5 minutes to benefit from these corrections (convergence time is larger), as opposed to OSR (seconds) or SSR (~180 seconds) to achieve maximum accuracy. But HAS is free! And available with very little additional configuration.
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Various SparkFun RTK products support this new GNSS band (E6). In general, the RTK Torch will need UM980 firmware 118333 or newer. See how to [Update the UM980 Firmware](/docs/firmware_update.md#updating-um980-firmware) for instructions. HAS/E6 is enabled by default and can be disabled in the [GNSS Menu](menu_gnss.md#galileo-e6-corrections) if desired.
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Various SparkFun RTK products support this new GNSS band (E6). In general, the RTK Torch will need UM980 firmware 118333 or newer. See how to [Update the UM980 Firmware](firmware_update.md#updating-um980-firmware) for instructions. HAS/E6 is enabled by default and can be disabled in the [GNSS Menu](menu_gnss.md#galileo-e6-corrections) if desired.

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