From 32daef5571995e59dd11ffe6adc4d5074515516b Mon Sep 17 00:00:00 2001
From: Armel FAUVEAU <armel.fauveau@globalis-ms.com>
Date: Sat, 29 Jun 2024 04:39:43 +0200
Subject: [PATCH] Add CA HAM and GMRS/FRS/MURS

---
 frequencies.c | 23 +++++++++++++++++++++++
 settings.h    |  4 ++++
 ui/menu.c     |  4 ++++
 3 files changed, 31 insertions(+)

diff --git a/frequencies.c b/frequencies.c
index ff8a494..1798cf3 100644
--- a/frequencies.c
+++ b/frequencies.c
@@ -227,6 +227,29 @@ int32_t TX_freq_check(const uint32_t Frequency)
 			if (Frequency >= 44600625 && Frequency <= 44619375)
 				return 0;
 			break;
+
+		case F_LOCK_GMRS_FRS_MURS:
+			// https://forums.radioreference.com/threads/the-great-unofficial-radioreference-frs-gmrs-murs-fact-sheet.275370/
+			if (Frequency >= 46256250 && Frequency <= 46271250) // FRS/GMRS
+				return 0;
+			if (Frequency >= 46756250 && Frequency <= 46771250) // FRS ONLY
+				return 0;
+			if (Frequency >= 46255000 && Frequency <= 46272500) // GMRS ONLY
+				return 0;
+			if (Frequency == 15182000 || 
+				Frequency == 15188000 || 
+				Frequency == 15194000 || 
+				Frequency == 15457000 || 
+				Frequency == 15460000) // MURS
+				return 0;
+			break;
+
+		case F_LOCK_CA:
+			if (Frequency >= 14400000 && Frequency < 14800000)
+				return 0;
+			if (Frequency >= 43000000 && Frequency < 45000000)
+				return 0;
+			break;
 #endif
 
 		case F_LOCK_ALL:
diff --git a/settings.h b/settings.h
index 3792af4..86e248e 100644
--- a/settings.h
+++ b/settings.h
@@ -41,12 +41,16 @@ typedef enum POWER_OnDisplayMode_t POWER_OnDisplayMode_t;
 enum TxLockModes_t {
 	F_LOCK_DEF, //all default frequencies + configurable
 	F_LOCK_FCC,
+#ifdef ENABLE_FEAT_F4HWN_PMR
+	F_LOCK_CA,
+#endif
 	F_LOCK_CE,
 	F_LOCK_GB,
 	F_LOCK_430,
 	F_LOCK_438,
 #ifdef ENABLE_FEAT_F4HWN_PMR
 	F_LOCK_PMR,
+	F_LOCK_GMRS_FRS_MURS,
 #endif
 	F_LOCK_ALL,	// disable TX on all frequencies
 	F_LOCK_NONE, // enable TX on all frequencies
diff --git a/ui/menu.c b/ui/menu.c
index f84a143..5d607dd 100644
--- a/ui/menu.c
+++ b/ui/menu.c
@@ -290,12 +290,16 @@ const char * const gSubMenu_F_LOCK[] =
 {
 	"DEFAULT+\n137-174\n400-470",
 	"FCC HAM\n144-148\n420-450",
+#ifdef ENABLE_FEAT_F4HWN_PMR
+	"CA HAM\n144-148\n430-450",
+#endif
 	"CE HAM\n144-146\n430-440",
 	"GB HAM\n144-148\n430-440",
 	"137-174\n400-430",
 	"137-174\n400-438",
 #ifdef ENABLE_FEAT_F4HWN_PMR
 	"PMR 446",
+	"GMRS\nFRS\nMURS",
 #endif
 	"DISABLE\nALL",
 	"UNLOCK\nALL",