Change PASS BAND measurement not to ask for frequency

plot.c

@@ -2084,6 +2084,20 @@ static void cell_draw_marker_info(int x0, int y0)
   if (setting.measurement == M_THD && active >= 1)
     active = 2;
   for (int i = 0; i < MARKER_COUNT; i++) {
+    if (i == 3 && setting.measurement == M_PASS_BAND) {
+        uint32_t f;
+        if (markers[2].frequency>markers[1].frequency)
+          f = markers[2].frequency-markers[1].frequency;
+        else
+          f = markers[1].frequency-markers[2].frequency;
+        plot_printf(buf, sizeof buf, "WIDTH: %8.3qHz", f);
+        j = 3;
+        int xpos = 1 + (j%2)*(WIDTH/2) + CELLOFFSETX - x0;
+        int ypos = 1 + (j/2)*(16) - y0;
+        cell_drawstring_7x13(buf, xpos, ypos);
+//        cell_drawstring(buf, xpos, ypos);
+        break;
+    } else
     if (i >= 2 && setting.measurement == M_THD) {
       if (i == 2 && (markers[0].index << 5) > sweep_points ) {
         int old_unit = setting.unit;

sa_core.c

@@ -2376,14 +2376,14 @@ sweep_again:                                // stay in sweep loop when output mo
     } else if (setting.measurement == M_PASS_BAND  && markers[0].index > 10) {      // ----------------Pass band measurement
       int t = markers[0].index;
       float v = actual_t[t];
-      while (t > 0 && actual_t[t] > v - 6.0)                                        // Find left -3dB point
+      while (t > 0 && actual_t[t] > v - 4.0)                                        // Find left -3dB point
         t --;
       if (t > 0) {
         markers[1].index = t;
         markers[1].frequency = frequencies[t];
       }
       t = markers[0].index;
-      while (t < setting._sweep_points - 1 && actual_t[t] > v - 6.0)                // find right -3dB point
+      while (t < setting._sweep_points - 1 && actual_t[t] > v - 4.0)                // find right -3dB point
         t ++;
       if (t < setting._sweep_points - 1 ) {
         markers[2].index = t;

ui_sa.c

@@ -833,18 +833,20 @@ static UI_FUNCTION_ADV_CALLBACK(menu_measure_acb)
 
       break;
     case M_PASS_BAND:                             // STop band measurement
-      reset_settings(setting.mode);
+//      reset_settings(setting.mode);
+      markers[0].enabled = M_ENABLED;
+      markers[0].mtype = M_REFERENCE | M_TRACKING;
       markers[1].enabled = M_ENABLED;
       markers[1].mtype = M_DELTA;
       markers[2].enabled = M_ENABLED;
       markers[2].mtype = M_DELTA;
-      kp_help_text = "Frequency of signal";
-      ui_mode_keypad(KM_CENTER);
-      ui_process_keypad();
-      kp_help_text = "Width of signal";
-      ui_mode_keypad(KM_SPAN);
-      ui_process_keypad();
-      set_sweep_frequency(ST_SPAN, uistat.value*2);
+//      kp_help_text = "Frequency of signal";
+//      ui_mode_keypad(KM_CENTER);
+//      ui_process_keypad();
+//      kp_help_text = "Width of signal";
+//      ui_mode_keypad(KM_SPAN);
+//      ui_process_keypad();
+//      set_sweep_frequency(ST_SPAN, uistat.value*2);
       set_measurement(M_PASS_BAND);
 //      SetAverage(4);
 
@@ -1695,7 +1697,7 @@ static const menuitem_t menu_measure[] = {
   { MT_ADV_CALLBACK,            M_OIP3,       "OIP3",           menu_measure_acb},
   { MT_ADV_CALLBACK,            M_PHASE_NOISE,"PHASE\nNOISE",   menu_measure_acb},
   { MT_ADV_CALLBACK,            M_STOP_BAND,  "SNR",            menu_measure_acb},
-  { MT_ADV_CALLBACK,            M_PASS_BAND,  "-6dB\nWIDTH",     menu_measure_acb},
+  { MT_ADV_CALLBACK,            M_PASS_BAND,  "-3dB\nWIDTH",     menu_measure_acb},
   { MT_SUBMENU,  0,             S_RARROW" MORE",                menu_measure2},
   { MT_CANCEL, 0,               S_LARROW" BACK", NULL },
   { MT_NONE,   0, NULL, NULL } // sentinel