Update docs

Added tips for GNSS antenna use
Clarified voltage injection information
Updated arduino_library.png image

Author: santaimpersonator

flex_boards/SparkPNT_GNSS_Flex_Module_LG290P/docs/assets/img/hookup_guide/arduino_library.png

@@ -13,6 +13,10 @@ GNSS antennas are connected to the U.FL connector on the GNSS Flex board. For st
 </figure>
 
 
+!!! tip
+	For the best performance, we recommend users choose a compatible L1/L2/L5/L6 GNSS antenna and utilize a low-loss cable. Also, don't forget that GNSS signals are fairly weak and can't penetrate buildings or dense vegetation. The GNSS antenna should have an unobstructed view of the sky.
+
+
 
 ## GNSS Flex Headers
 SparkPNT GNSS Flex modules are *plug-in boards* featuring different GNSS receivers. They are designed to be easily swapped for repairs and pin-compatible for upgrades. The boards come populated with two 2x10 pin, 2mm pitch female headers for connecting to *carrier boards*.

flex_boards/SparkPNT_GNSS_Flex_Module_LG290P/docs/hardware_assembly.md

@@ -666,7 +666,7 @@ Users will need to connect a compatible GNSS antenna to the `Antenna L1/L2/L5/E6
 - Passive antennas are not recommended for the LG290P GNSS module.
 - To mitigate the impact of out-of-band signals, utilize an active antenna whose SAW filter is placed in front of the LNA in the internal framework.
 	- **DO NOT** select an antenna with the LNA placed in the front.
-- There is no need to inject an external DC voltage into the SMA connector for the GNSS antenna. Power is already provided from the LG290P module for the LNA of an active antenna.
+- There is no need to inject an external DC voltage for the GNSS antenna. Power is already provided from the LG290P module for the LNA of an active antenna.
 
 
 <figure markdown>

flex_boards/SparkPNT_GNSS_Flex_Module_LG290P/docs/hardware_overview.md

@@ -61,6 +61,10 @@ GNSS antennas are connected to the U.FL connector on the GNSS Flex board. For st
 </figure>
 
 
+!!! tip
+	For the best performance, we recommend users choose a compatible L1/L2/L5/L6 GNSS antenna and utilize a low-loss cable. Also, don't forget that GNSS signals are fairly weak and can't penetrate buildings or dense vegetation. The GNSS antenna should have an unobstructed view of the sky.
+
+
 
 ## GNSS Flex Headers
 SparkPNT GNSS Flex modules are *plug-in boards* featuring different GNSS receivers. They are designed to be easily swapped for repairs and pin-compatible for upgrades. The boards come populated with two 2x10 pin, 2mm pitch female headers for connecting to *carrier boards*.