diff --git a/README.md b/README.md
index 961582c..f6b230d 100644
--- a/README.md
+++ b/README.md
@@ -2,9 +2,10 @@
 
 This repository is a cloned and customized version of DualTachyon's open firmware found here ..
 
-https://github.com/DualTachyon/uv-k5-firmware
+https://github.com/DualTachyon/uv-k5-firmware .. a cool achievement !
 
-A cool achievement
+Use this firmware at your own risk (entirely). There is absolutely no guarantee that it will work in any way shape or form on your radio(s), it may even brick your radio(s), in which case, you'd need to buy another radio.
+Anyway, have fun.
 
 # Radio performance
 
diff --git a/app/dtmf.c b/app/dtmf.c
index 42c641f..9e2f334 100644
--- a/app/dtmf.c
+++ b/app/dtmf.c
@@ -402,12 +402,14 @@ void DTMF_Reply(void)
 		return;
 	
 	Delay = gEeprom.DTMF_PRELOAD_TIME;
+	
 	if (gEeprom.DTMF_SIDE_TONE)
-	{
+	{	// the will also hear the transmitted tones
 		GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_AUDIO_PATH);
 		gEnableSpeaker = true;
 		Delay = (gEeprom.DTMF_PRELOAD_TIME < 60) ? 60 : gEeprom.DTMF_PRELOAD_TIME;
 	}
+	
 	SYSTEM_DelayMs(Delay);
 
 	BK4819_EnterDTMF_TX(gEeprom.DTMF_SIDE_TONE);
diff --git a/firmware.bin b/firmware.bin
index 329b347..395b701 100644
Binary files a/firmware.bin and b/firmware.bin differ
diff --git a/firmware.packed.bin b/firmware.packed.bin
index 7d7b337..086adc0 100644
Binary files a/firmware.packed.bin and b/firmware.packed.bin differ
diff --git a/ui/main.c b/ui/main.c
index 47da6cb..f7a8b38 100644
--- a/ui/main.c
+++ b/ui/main.c
@@ -119,9 +119,9 @@ bool center_line_is_free = true;
 #if defined(ENABLE_RSSI_BAR)
 	void UI_DisplayRSSIBar(const int16_t rssi, const bool now)
 	{
-		const int16_t      s9_dBm       = -73;                   // S9
-		const int16_t      s0_dBm       = -127;                  // S0
+		const int16_t      s0_dBm       = -127;                  // S0 .. base level
 
+		const int16_t      s9_dBm       = s0_dBm + (6 * 9);      // S9 .. 6dB/S-Point
 		const int16_t      bar_max_dBm  = s9_dBm + 30;           // S9+30dB
 		const int16_t      bar_min_dBm  = s0_dBm;                // S0