doc/menu_ports.md: Note that the radio port is F9P UART2.

gdt · gdt · commit b02436056de1 · 2025-01-22T20:21:18.000-05:00
diff --git a/docs/menu_ports.md b/docs/menu_ports.md
@@ -14,6 +14,8 @@ Surveyor: ![Feature Partially Supported](img/Icons/YellowDot.png) / Express: ![F
 
 By default, the **Radio** port is set to 57600bps to match the [Serial Telemetry Radios](https://www.sparkfun.com/products/19032) that are recommended to be used with the RTK Facet (it is a plug-and-play solution). This can be set from 4800bps to 921600bps.
 
+The radio port is connected to the F9P's UART2.
+
 ## Mux Channel
 
 The **Data** port on the RTK Facet, Express, and Express Plus is very flexible. Internally the **Data** connector is connected to a digital mux allowing one of four software-selectable setups. By default, the Data port will be connected to the UART1 of the ZED-F9P and output any messages via serial.
