diff --git a/radio.c b/radio.c
index 393e0f4f5..e64e05d9d 100644
--- a/radio.c
+++ b/radio.c
@@ -977,97 +977,92 @@ void RADIO_PrepareTX(void)
 
 	RADIO_SelectCurrentVfo();
 
-	#if defined(ENABLE_ALARM) && defined(ENABLE_TX1750)
-		if (gAlarmState == ALARM_STATE_OFF    ||
-		    gAlarmState == ALARM_STATE_TX1750 ||
-		   (gAlarmState == ALARM_STATE_ALARM && gEeprom.ALARM_MODE == ALARM_MODE_TONE))
-	#elif defined(ENABLE_ALARM)
-		if (gAlarmState == ALARM_STATE_OFF    ||
-		   (gAlarmState == ALARM_STATE_ALARM && gEeprom.ALARM_MODE == ALARM_MODE_TONE))
-	#elif defined(ENABLE_TX1750)
-		if (gAlarmState == ALARM_STATE_OFF    ||
-		    gAlarmState == ALARM_STATE_TX1750)
-	#endif
-	{
-		#ifndef ENABLE_TX_WHEN_AM
-			if (gCurrentVfo->Modulation != MODULATION_FM)
-			{	// not allowed to TX if in AM mode
-				State = VFO_STATE_TX_DISABLE;
-			}
-			else
+	if (TX_freq_check(gCurrentVfo->pTX->Frequency) != 0) {
+		// TX frequency not allowed
+		State = VFO_STATE_TX_DISABLE;
+	}
+	else
+	#if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
+	if (!(gAlarmState == ALARM_STATE_OFF
+		#if defined(ENABLE_TX1750)
+		|| gAlarmState == ALARM_STATE_TX1750
 		#endif
-		if (gSerialConfigCountDown_500ms > 0)
-		{	// TX is disabled or config upload/download in progress
-			State = VFO_STATE_TX_DISABLE;
-		}
-		else
-		if (TX_freq_check(gCurrentVfo->pTX->Frequency) == 0)
-		{	// TX frequency is allowed
-			if (gCurrentVfo->BUSY_CHANNEL_LOCK && gCurrentFunction == FUNCTION_RECEIVE)
-				State = VFO_STATE_BUSY;          // busy RX'ing a station
-			else
-			if (gBatteryDisplayLevel == 0)
-				State = VFO_STATE_BAT_LOW;       // charge your battery !
-			else
-			if (gBatteryDisplayLevel > 6)
-				State = VFO_STATE_VOLTAGE_HIGH;  // over voltage .. this is being a pain
-		}
-		else
-			State = VFO_STATE_TX_DISABLE;        // TX frequency not allowed
+		#if defined(ENABLE_ALARM)
+		|| (gAlarmState == ALARM_STATE_ALARM && gEeprom.ALARM_MODE == ALARM_MODE_TONE)
+		#endif
+	)) {
+		State = VFO_STATE_TX_DISABLE;
+	}
+	else
+	#endif
+	#ifndef ENABLE_TX_WHEN_AM
+	if (gCurrentVfo->Modulation != MODULATION_FM) {
+		// not allowed to TX if in AM mode
+		State = VFO_STATE_TX_DISABLE;
+	}
+	else
+	#endif
+	if (gSerialConfigCountDown_500ms > 0) {
+		// TX is disabled or config upload/download in progress
+		State = VFO_STATE_TX_DISABLE;
+	} else if (gCurrentVfo->BUSY_CHANNEL_LOCK && gCurrentFunction == FUNCTION_RECEIVE) {
+		// busy RX'ing a station
+		State = VFO_STATE_BUSY;
+	} else if (gBatteryDisplayLevel == 0) {
+		// charge your battery !git co
+		State = VFO_STATE_BAT_LOW;
+	} else if (gBatteryDisplayLevel > 6) {
+		// over voltage .. this is being a pain
+		State = VFO_STATE_VOLTAGE_HIGH;
 	}
 
-	if (State != VFO_STATE_NORMAL)
-	{	// TX not allowed
+	if (State != VFO_STATE_NORMAL) {
+		// TX not allowed
 		RADIO_SetVfoState(State);
 
-		#if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
-			gAlarmState = ALARM_STATE_OFF;
-		#endif
+	#if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
+		gAlarmState = ALARM_STATE_OFF;
+	#endif
 
-#ifdef ENABLE_DTMF_CALLING
+	#ifdef ENABLE_DTMF_CALLING
 		gDTMF_ReplyState = DTMF_REPLY_NONE;
-#endif
+	#endif
 		AUDIO_PlayBeep(BEEP_500HZ_60MS_DOUBLE_BEEP_OPTIONAL);
 		return;
 	}
 
 	// TX is allowed
 
-#ifdef ENABLE_DTMF_CALLING
-	if (gDTMF_ReplyState == DTMF_REPLY_ANI)
-	{
-		if (gDTMF_CallMode == DTMF_CALL_MODE_DTMF)
-		{
-			gDTMF_IsTx                  = true;
-			gDTMF_CallState             = DTMF_CALL_STATE_NONE;
+	#ifdef ENABLE_DTMF_CALLING
+	if (gDTMF_ReplyState == DTMF_REPLY_ANI) {
+		if (gDTMF_CallMode == DTMF_CALL_MODE_DTMF) {
+			gDTMF_IsTx = true;
+			gDTMF_CallState = DTMF_CALL_STATE_NONE;
 			gDTMF_TxStopCountdown_500ms = DTMF_txstop_countdown_500ms;
-		}
-		else
-		{
+		} else {
+			gDTMF_IsTx = false;
 			gDTMF_CallState = DTMF_CALL_STATE_CALL_OUT;
-			gDTMF_IsTx      = false;
 		}
 	}
-#endif
+	#endif
 
 	FUNCTION_Select(FUNCTION_TRANSMIT);
 
 	gTxTimerCountdown_500ms = 0;            // no timeout
 
 	#if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
-		if (gAlarmState == ALARM_STATE_OFF)
+	if (gAlarmState == ALARM_STATE_OFF)
 	#endif
 	{
 		if (gEeprom.TX_TIMEOUT_TIMER == 0)
 			gTxTimerCountdown_500ms = 60;   // 30 sec
-		else
-		if (gEeprom.TX_TIMEOUT_TIMER < (ARRAY_SIZE(gSubMenu_TOT) - 1))
+		else if (gEeprom.TX_TIMEOUT_TIMER < (ARRAY_SIZE(gSubMenu_TOT) - 1))
 			gTxTimerCountdown_500ms = 120 * gEeprom.TX_TIMEOUT_TIMER;  // minutes
 		else
 			gTxTimerCountdown_500ms = 120 * 15;  // 15 minutes
 	}
-	gTxTimeoutReached    = false;
 
+	gTxTimeoutReached    = false;
 	gFlagEndTransmission = false;
 	gRTTECountdown       = 0;