diff --git a/src/mesh/RadioInterface.cpp b/src/mesh/RadioInterface.cpp
index 4defd00ed..6a8a0230a 100644
--- a/src/mesh/RadioInterface.cpp
+++ b/src/mesh/RadioInterface.cpp
@@ -130,8 +130,10 @@ const RegionInfo regions[] = {
 
     /*
        https://lora-alliance.org/wp-content/uploads/2020/11/lorawan_regional_parameters_v1.0.3reva_0.pdf
+       https://standard.nbtc.go.th/getattachment/Standards/%E0%B8%A1%E0%B8%B2%E0%B8%95%E0%B8%A3%E0%B8%90%E0%B8%B2%E0%B8%99%E0%B8%97%E0%B8%B2%E0%B8%87%E0%B9%80%E0%B8%97%E0%B8%84%E0%B8%99%E0%B8%B4%E0%B8%84%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%80%E0%B8%84%E0%B8%A3%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B8%87%E0%B9%82%E0%B8%97%E0%B8%A3%E0%B8%84%E0%B8%A1%E0%B8%99%E0%B8%B2%E0%B8%84%E0%B8%A1/1033-2565.pdf.aspx?lang=th-TH
+       Thailand 920–925 MHz set max TX power to 27 dBm and enforce 10% duty cycle, aligned with NBTC regulations.
     */
-    RDEF(TH, 920.0f, 925.0f, 100, 0, 16, true, false, false),
+    RDEF(TH, 920.0f, 925.0f, 10, 0, 27, true, false, false),
 
     /*
         433,05-434,7 Mhz 10 mW