diff --git a/variants/lilygo_tbeam_1w/platformio.ini b/variants/lilygo_tbeam_1w/platformio.ini
index 618a32a8..cf17ae8b 100644
--- a/variants/lilygo_tbeam_1w/platformio.ini
+++ b/variants/lilygo_tbeam_1w/platformio.ini
@@ -24,7 +24,7 @@ build_flags =
   ; Truth table: DIO2=1,RXEN=0 → TX | DIO2=0,RXEN=1 → RX
   -D SX126X_DIO2_AS_RF_SWITCH=true
   -D SX126X_RXEN=21
-  -D SX126X_DIO3_TCXO_VOLTAGE=1.8
+  -D SX126X_DIO3_TCXO_VOLTAGE=3.0
   -D SX126X_CURRENT_LIMIT=140
   -D SX126X_RX_BOOSTED_GAIN=1
 
diff --git a/variants/lilygo_tbeam_1w/variant.h b/variants/lilygo_tbeam_1w/variant.h
index c05b1696..f6807e56 100644
--- a/variants/lilygo_tbeam_1w/variant.h
+++ b/variants/lilygo_tbeam_1w/variant.h
@@ -62,7 +62,7 @@
 #define SX126X_RXEN 21  // LNA enable - HIGH during RX
 
 // TCXO voltage - required for radio init
-#define SX126X_DIO3_TCXO_VOLTAGE 1.8
+#define SX126X_DIO3_TCXO_VOLTAGE 3.0
 
 #define SX126X_MAX_POWER 22
 #endif