Adjust SNR averaging settings to avoid weird SNR readings from fading. Stop false landing reports for iMets (temporary solution)

auto_rx/autorx/__init__.py

@@ -17,7 +17,7 @@ except ImportError:
 # 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__ = "1.5.1"
+__version__ = "1.5.2-beta1"
 
 
 # Global Variables

auto_rx/autorx/decode.py

@@ -736,7 +736,7 @@ class SondeDecoder(object):
             )
 
             # RS92s transmit continuously - average over the last 2 frames, and use a mean
-            demod_stats = FSKDemodStats(averaging_time=2.0, peak_hold=False)
+            demod_stats = FSKDemodStats(averaging_time=2.0, peak_hold=True)
             self.rx_frequency = _freq
 
         elif self.sonde_type == "DFM":
@@ -778,8 +778,8 @@ class SondeDecoder(object):
                 "./dfm09mod -vv --ecc --json --dist --auto --softin -i 2>/dev/null"
             )
 
-            # DFM sondes transmit continuously - average over the last 2 frames, and use a mean
-            demod_stats = FSKDemodStats(averaging_time=1.0, peak_hold=False)
+            # DFM sondes transmit continuously - average over the last 2 frames, and peak hold
+            demod_stats = FSKDemodStats(averaging_time=2.0, peak_hold=True)
             self.rx_frequency = _freq
 
         elif self.sonde_type == "M10":
@@ -894,8 +894,8 @@ class SondeDecoder(object):
 
             decode_cmd = "./lms6Xmod --json --softin --vit2 -i 2>/dev/null"
 
-            # LMS sondes transmit continuously - average over the last 2 frames, and use a mean
-            demod_stats = FSKDemodStats(averaging_time=2.0, peak_hold=False)
+            # LMS sondes transmit continuously - average over the last 2 frames, and use a peak hold
+            demod_stats = FSKDemodStats(averaging_time=2.0, peak_hold=True)
             self.rx_frequency = _freq
 
         elif self.sonde_type == "IMET5":
@@ -974,8 +974,8 @@ class SondeDecoder(object):
             # MRZ decoder
             decode_cmd = "./mp3h1mod --auto --json --softin --ptu 2>/dev/null"
 
-            # MRZ sondes transmit continuously - average over the last frame, and use a mean
-            demod_stats = FSKDemodStats(averaging_time=1.0, peak_hold=False)
+            # MRZ sondes transmit continuously - average over the last frame, and use a peak hold
+            demod_stats = FSKDemodStats(averaging_time=1.0, peak_hold=True)
             self.rx_frequency = _freq
 
         else:

auto_rx/autorx/email_notification.py

@@ -180,7 +180,7 @@ class EmailNotification(object):
                 self.sondes[_id]["descent_notified"] == False
             ):
                 # If the sonde is below our threshold altitude, *and* is descending at a reasonable rate, increment.
-                if (telemetry["alt"] < self.landing_altitude_threshold) and (
+                if (telemetry["alt"] < self.landing_altitude_threshold) and (telemetry["vel_v"] != -9999.0) and (
                     telemetry["vel_v"] < -2.0
                 ):
                     self.sondes[_id]["descending_trip"] += 1

auto_rx/autorx/geometry.py

@@ -125,17 +125,19 @@ class GenericTrack(object):
     The track history can be exported to a LineString using the to_line_string method.
     """
 
-    def __init__(self, ascent_averaging=6, landing_rate=5.0):
+    def __init__(self, ascent_averaging=6, landing_rate=5.0, max_elements=None):
         """ Create a GenericTrack Object. """
 
         # Averaging rate.
         self.ASCENT_AVERAGING = ascent_averaging
         # Payload state.
         self.landing_rate = landing_rate
+        self.max_elements = max_elements
         self.ascent_rate = 0.0
         self.heading = 0.0
         self.speed = 0.0
         self.is_descending = False
+        
 
         # Internal store of track history data.
         # Data is stored as a list-of-lists, with elements of [datetime, lat, lon, alt, comment]
@@ -158,6 +160,12 @@ class GenericTrack(object):
                 _comment = ""
 
             self.track_history.append([_datetime, _lat, _lon, _alt, _comment])
+
+            # Clip size of track history if a maximum number of elements is set.
+            if self.max_elements:
+                if len(self.track_history) > self.max_elements:
+                    self.track_history = self.track_history[1:]
+
             self.update_states()
             return self.get_latest_state()
         except ValueError:

auto_rx/autorx/scan.py

@@ -468,7 +468,7 @@ def detect_sonde(
         _sonde_type = "M10"
     elif "M20" in _type:
         logging.debug(
-            "Scanner #%s - Detected a M20 Sonde! (Not yet supported...) (Score: %.2f, Offset: %.1f Hz)"
+            "Scanner #%s - Detected a M20 Sonde! (Score: %.2f, Offset: %.1f Hz)"
             % (str(device_idx), _score, _offset_est)
         )
         _sonde_type = "M20"