From ef42f24f41553519b7d5cfbf05d60afd3c3241cf Mon Sep 17 00:00:00 2001
From: Sjef Verhoeven PE5PVB <pe5pvb@het-bar.net>
Date: Thu, 21 Sep 2023 22:04:33 +0200
Subject: [PATCH] Fix SNR AM

---
 src/Tuner_Drv_Lithio.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Tuner_Drv_Lithio.cpp b/src/Tuner_Drv_Lithio.cpp
index c655a01..bf2a3c8 100644
--- a/src/Tuner_Drv_Lithio.cpp
+++ b/src/Tuner_Drv_Lithio.cpp
@@ -234,7 +234,7 @@ bool devTEF_Radio_Get_Quality_Status_AM (int16_t *level, uint16_t *noise, uint16
   *mod = Convert8bto16b(buf + 12) / 10;
   if (*level < -200) *level = -200;
   if (*level > 1200) *level = 1200;
-  if (-((int8_t)(*noise / 10)) > *level) *snr = 0; else *snr = -((int8_t)(*noise / 10)) / 10;
+  *snr = int(0.46222375 * (float)(*level) / 10 - 0.082495118 * (float)(*noise/50) / 10) + 10;
   return r;
 }