From e20046647c598a696fdb42a9c446340722b9dacf Mon Sep 17 00:00:00 2001
From: DL1YCF <dl1ycf@darc.de>
Date: Sun, 12 Sep 2021 13:46:08 +0200
Subject: [PATCH] Corrections for HL2 RXgain slider

---
 radio.c     | 8 +++++---
 sliders.c   | 5 +++--
 waterfall.c | 4 ++--
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/radio.c b/radio.c
index d53b766..1b95d8c 100644
--- a/radio.c
+++ b/radio.c
@@ -1161,10 +1161,11 @@ void start_radio() {
   adc[0].dither=FALSE;
   adc[0].random=FALSE;
   adc[0].preamp=FALSE;
+  adc[0].attenuation=0;
   if(have_rx_gain) {
-    adc[0].attenuation=14;
+    adc[0].gain=rx_calibration;
   } else {
-    adc[0].attenuation=0;
+    adc[0].gain=0;
   }
 #ifdef SOAPYSDR
   adc[0].antenna=0;
@@ -1190,8 +1191,9 @@ void start_radio() {
   adc[1].dither=FALSE;
   adc[1].random=FALSE;
   adc[1].preamp=FALSE;
+  adc[1].attenuation=0;
   if(have_rx_gain) {
-    adc[0].attenuation=14;
+    adc[1].attenuation=rx_gain_calibration;
   } else {
     adc[1].attenuation=0;
   }
diff --git a/sliders.c b/sliders.c
index 24ee99b..01b9376 100644
--- a/sliders.c
+++ b/sliders.c
@@ -156,7 +156,8 @@ void set_attenuation_value(double value) {
   set_attenuation(adc[active_receiver->adc].attenuation);
   if(display_sliders) {
     if (have_rx_gain) {
-	gtk_range_set_value (GTK_RANGE(attenuation_scale),(double)adc[active_receiver->adc].attenuation);
+	/* NOTREACHED */
+	gtk_range_set_value (GTK_RANGE(attenuation_scale),(double)adc[active_receiver->adc].gain);
     } else {
         gtk_range_set_value (GTK_RANGE(attenuation_scale),(double)adc[active_receiver->adc].attenuation);
     }
@@ -859,7 +860,7 @@ fprintf(stderr,"sliders_init: width=%d height=%d\n", width,height);
     } else {
 #endif
       rf_gain_scale=gtk_scale_new_with_range(GTK_ORIENTATION_HORIZONTAL,-12.0, 48.0, 1.0);
-      gtk_range_set_value (GTK_RANGE(rf_gain_scale),adc[active_receiver->adc].attenuation);
+      gtk_range_set_value (GTK_RANGE(rf_gain_scale),adc[active_receiver->adc].gain);
 #ifdef SOAPYSDR
     }
 #endif
diff --git a/waterfall.c b/waterfall.c
index 01bb5b7..cb6850f 100644
--- a/waterfall.c
+++ b/waterfall.c
@@ -183,7 +183,7 @@ void waterfall_update(RECEIVER *rx) {
 
     for(i=0;i<width;i++) {
             if(have_rx_gain) {
-              sample=samples[i+pan]+(float)(rx_gain_calibration-adc[rx->adc].attenuation);
+              sample=samples[i+pan]+(float)(rx_gain_calibration-adc[rx->adc].gain);
             } else {
               sample=samples[i+pan]+(float)adc[rx->adc].attenuation;
             }
@@ -242,7 +242,7 @@ void waterfall_update(RECEIVER *rx) {
 
     
     if(rx->waterfall_automatic) {
-      rx->waterfall_low=average/display_width;
+      rx->waterfall_low=average/width;
       rx->waterfall_high=rx->waterfall_low+50;
     }
 
-- 
2.45.2