diff --git a/SMA-Antenna-connector.md b/SMA-Antenna-connector.md
index 5814f23..653f226 100644
--- a/SMA-Antenna-connector.md
+++ b/SMA-Antenna-connector.md
@@ -1,4 +1,7 @@
-The antenna connectors on the HackRF board are the `18.5 mm` variant available here: https://s.click.aliexpress.com/e/_DEfOQ85
+> [!NOTE]  
+> It is a good idea to protect the antenna connectors with a [silicone cover](https://www.aliexpress.com/item/33027991367.html?channel=twinner) 
+
+The antenna connectors on the HackRF board are the `18.5 mm` variant available [here](https://s.click.aliexpress.com/e/_DEfOQ85).
 
 Notice that you _could_ fit the `SMA-KE 18.5mm` variant, but it will be not the perfect fit for the type of pcb mount used in originally.