diff --git a/info/DCtoDC_interconnection_types.txt b/info/DCtoDC_interconnection_types.txt
index c29873f..add7c06 100644
--- a/info/DCtoDC_interconnection_types.txt
+++ b/info/DCtoDC_interconnection_types.txt
@@ -95,7 +95,7 @@ If you connect multiple regions into one backbone.
 
 ---
 
-# 🇪🇺 **4. Nationwide / Cross-Country DC-DC Links (600–2000+ km)**
+# 🇪🇺 **4. Nationwide / Cross-Country DC-DC Links (600-2000+ km)**
 
 At this distance:
 
@@ -143,7 +143,7 @@ Now we are at **submarine cable** level.
 ### ✔ Technologies
 
 **a) Submarine Fiber Cables**
-With repeaters every 60–80 km.
+With repeaters every 60-80 km.
 
 Top systems today: