diff --git a/frequencies.c b/frequencies.c
index df3a193..c435dbe 100644
--- a/frequencies.c
+++ b/frequencies.c
@@ -222,6 +222,13 @@ int32_t TX_freq_check(const uint32_t Frequency)
 				return 0;
 			break;
 
+#ifdef ENABLE_FEAT_F4HWN
+		case F_LOCK_PMR:
+			if (Frequency >= 44600625 && Frequency <= 44619375)
+				return 0;
+			break;
+#endif
+
 		case F_LOCK_ALL:
 			break;
 
diff --git a/settings.h b/settings.h
index 374c3c5..e91cb1d 100644
--- a/settings.h
+++ b/settings.h
@@ -45,6 +45,9 @@ enum TxLockModes_t {
 	F_LOCK_GB,
 	F_LOCK_430,
 	F_LOCK_438,
+#ifdef ENABLE_FEAT_F4HWN
+	F_LOCK_PMR,
+#endif
 	F_LOCK_ALL,	// disable TX on all frequencies
 	F_LOCK_NONE, // enable TX on all frequencies
 	F_LOCK_LEN
diff --git a/ui/menu.c b/ui/menu.c
index 24eff34..32da365 100644
--- a/ui/menu.c
+++ b/ui/menu.c
@@ -305,6 +305,9 @@ const char * const gSubMenu_F_LOCK[] =
 	"GB HAM\n144-148\n430-440",
 	"137-174\n400-430",
 	"137-174\n400-438",
+#ifdef ENABLE_FEAT_F4HWN
+	"PMR 446",
+#endif
 	"DISABLE\nALL",
 	"UNLOCK\nALL",
 };