Rebase dft_detect, bump beta version

auto_rx/autorx/__init__.py

@@ -12,7 +12,7 @@ from queue import Queue
 # MINOR - New sonde type support, other fairly big changes that may result in telemetry or config file incompatability issus.
 # PATCH - Small changes, or minor feature additions.
 
-__version__ = "1.7.3-beta15"
+__version__ = "1.7.3-beta16"
 
 
 # Global Variables

scan/dft_detect.c

@@ -1018,9 +1018,12 @@ static int init_buffers() {
         float f_lp; // dec_lowpass: lowpass_bw/2
         float t_bw; // dec_lowpass: transition_bw
         int taps; // dec_lowpass: taps
+        int wideIF = 0;
 
         if (set_lpIQ > IF_sr) IF_sr = set_lpIQ;
 
+        wideIF = IF_sr > 60e3;
+
         sr_base = sample_rate;
 
         if (option_min) IF_sr = IF_SAMPLE_RATE_MIN;
@@ -1030,8 +1033,13 @@ static int init_buffers() {
             decM = sr_base / IF_sr;
         }
 
-        f_lp = (IF_sr+20e3)/(4.0*sr_base);
+        f_lp = (IF_sr+20e3)/(4.0*sr_base);    // IF=48k
         t_bw = (IF_sr-20e3)/*/2.0*/;
+        if (wideIF) {                         // IF=96k
+            f_lp = (IF_sr+60e3)/(4.0*sr_base);
+            t_bw = (IF_sr-60e3)/*/2.0*/;
+        }
+        else
         if (option_min) {
             t_bw = (IF_sr-12e3);
         }