Correct maximum frequency

nanovna.h

@@ -108,13 +108,13 @@
 #define DEFAULT_IF  433800000
 #define DEFAULT_SPUR_IF 434000000
 #define DEFAULT_MAX_FREQ    350000000
-#define MAX_LO_FREQ         960000000UL
+#define MAX_LO_FREQ         959800000UL
 #define MIN_LO_FREQ         240000000UL
 #define MIN_BELOW_LO         550000000UL
 #define ULTRA_MAX_FREQ      1390000000UL
 //#define DEFAULT_MAX_FREQ    527000000
 #define HIGH_MIN_FREQ_MHZ   240
-#define HIGH_MAX_FREQ_MHZ   960
+#define HIGH_MAX_FREQ_MHZ   959
 #endif
 #ifdef TINYSA4
 #define FREQ_MULTIPLIER 100         // Multiplier of the 30MHz reference to get accurate frequency correction

ui.c

@@ -946,6 +946,8 @@ menu_invoke(int item)
     if (menu->data <= KM_CW) {      // One of the frequency input keypads
       if (MODE_LOW(setting.mode))
         kp_help_text = VARIANT("0..350MHz",range_text);
+      else if (menu->data <= KM_SPAN)
+        kp_help_text = VARIANT("0..720Mhz",range_text);
       else
         kp_help_text = VARIANT("240..960Mhz",range_text);
     }

ui_sa.c

@@ -2434,7 +2434,7 @@ const menuitem_t  menu_lowoutputmode[] = {
 
 const menuitem_t  menu_highoutputmode[] = {
   { MT_FORM | MT_ADV_CALLBACK,  0,      "HIGH OUTPUT           %s", menu_outputmode_acb},
-  { MT_FORM | MT_KEYPAD,    KM_CENTER,  center_text,         VARIANT("240MHz..960MHz",range_text)},
+  { MT_FORM | MT_KEYPAD,    KM_CENTER,  center_text,         VARIANT("240MHz..959MHz",range_text)},
   { MT_FORM | MT_KEYPAD,   KM_HIGHOUTLEVEL,      "LEVEL: %s",        low_level_help_text /* "-76..-6" */},
   { MT_FORM | MT_ADV_CALLBACK,   0,     MT_CUSTOM_LABEL,   menu_smodulation_acb},
   { MT_FORM | MT_ADV_CALLBACK,  0,      MT_CUSTOM_LABEL,   menu_sweep_acb},