diff --git a/README.md b/README.md
index 961582cb..f6b230da 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 42c641f1..9e2f3348 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 329b3475..395b701f 100644
Binary files a/firmware.bin and b/firmware.bin differ
diff --git a/firmware.packed.bin b/firmware.packed.bin
index 7d7b3377..086adc05 100644
Binary files a/firmware.packed.bin and b/firmware.packed.bin differ
diff --git a/ui/main.c b/ui/main.c
index 47da6cb0..f7a8b38b 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