diff --git a/owrx/connection.py b/owrx/connection.py
index b420568..9266a79 100644
--- a/owrx/connection.py
+++ b/owrx/connection.py
@@ -199,7 +199,7 @@ class OpenWebRxReceiverClient(Client):
         stack = PropertyStack()
         stack.addLayer(0, self.sdr.getProps())
         stack.addLayer(1, Config.get())
-        configProps = stack.collect(*OpenWebRxReceiverClient.config_keys)
+        configProps = stack.filter(*OpenWebRxReceiverClient.config_keys)
 
         def sendConfig(key, value):
             #config = dict((key, configProps[key]) for key in OpenWebRxReceiverClient.config_keys)
@@ -257,7 +257,7 @@ class OpenWebRxReceiverClient(Client):
         stack = PropertyStack()
         stack.addLayer(0, self.sdr.getProps())
         stack.addLayer(1, config)
-        protected = stack.collect(*keys)
+        protected = stack.filter(*keys)
         for key, value in params.items():
             protected[key] = value
 
@@ -335,7 +335,7 @@ class MapConnection(Client):
         super().__init__(conn)
 
         pm = Config.get()
-        self.write_config(pm.collect("google_maps_api_key", "receiver_gps", "map_position_retention_time").__dict__())
+        self.write_config(pm.filter("google_maps_api_key", "receiver_gps", "map_position_retention_time").__dict__())
 
         Map.getSharedInstance().addClient(self)
 
diff --git a/owrx/dsp.py b/owrx/dsp.py
index 50039e3..f0f1fd5 100644
--- a/owrx/dsp.py
+++ b/owrx/dsp.py
@@ -26,7 +26,7 @@ class DspManager(csdr.output):
 
         self.props = PropertyStack()
         # local demodulator properties not forwarded to the sdr
-        self.props.addLayer(0, PropertyLayer().collect(
+        self.props.addLayer(0, PropertyLayer().filter(
             "output_rate",
             "squelch_level",
             "secondary_mod",
@@ -37,7 +37,7 @@ class DspManager(csdr.output):
             "secondary_offset_freq",
         ))
         # properties that we inherit from the sdr
-        self.props.addLayer(1, self.sdrSource.getProps().collect(
+        self.props.addLayer(1, self.sdrSource.getProps().filter(
             "audio_compression",
             "fft_compression",
             "digimodes_fft_size",
@@ -84,7 +84,7 @@ class DspManager(csdr.output):
             self.props.wireProperty("digital_voice_unvoiced_quality", self.dsp.set_unvoiced_quality),
             self.props.wireProperty("dmr_filter", self.dsp.set_dmr_filter),
             self.props.wireProperty("temporary_directory", self.dsp.set_temporary_directory),
-            self.props.collect("center_freq", "offset_freq").wire(set_dial_freq),
+            self.props.filter("center_freq", "offset_freq").wire(set_dial_freq),
         ]
 
         self.dsp.set_offset_freq(0)
diff --git a/owrx/fft.py b/owrx/fft.py
index 9d37bcf..cbb98a6 100644
--- a/owrx/fft.py
+++ b/owrx/fft.py
@@ -17,7 +17,7 @@ class SpectrumThread(csdr.output):
         stack = PropertyStack()
         stack.addLayer(0, self.sdrSource.props)
         stack.addLayer(1, Config.get())
-        self.props = props = stack.collect(
+        self.props = props = stack.filter(
             "samp_rate",
             "fft_size",
             "fft_fps",
@@ -51,7 +51,7 @@ class SpectrumThread(csdr.output):
             props.wireProperty("fft_fps", dsp.set_fft_fps),
             props.wireProperty("fft_compression", dsp.set_fft_compression),
             props.wireProperty("temporary_directory", dsp.set_temporary_directory),
-            props.collect("samp_rate", "fft_size", "fft_fps", "fft_voverlap_factor").wire(set_fft_averages),
+            props.filter("samp_rate", "fft_size", "fft_fps", "fft_voverlap_factor").wire(set_fft_averages),
         ]
 
         set_fft_averages(None, None)
diff --git a/owrx/property/__init__.py b/owrx/property/__init__.py
index 4454bfd..256c391 100644
--- a/owrx/property/__init__.py
+++ b/owrx/property/__init__.py
@@ -44,7 +44,7 @@ class PropertyManager(ABC):
     def keys(self):
         pass
 
-    def collect(self, *props):
+    def filter(self, *props):
         return PropertyFilter(self, *props)
 
     def wire(self, callback):
diff --git a/owrx/sdrhu.py b/owrx/sdrhu.py
index 939d352..193399f 100644
--- a/owrx/sdrhu.py
+++ b/owrx/sdrhu.py
@@ -14,7 +14,7 @@ class SdrHuUpdater(threading.Thread):
         super().__init__(daemon=True)
 
     def update(self):
-        pm = Config.get().collect("server_hostname", "web_port", "sdrhu_key")
+        pm = Config.get().filter("server_hostname", "web_port", "sdrhu_key")
         data = parse.urlencode({
             "url": "http://{server_hostname}:{web_port}".format(**pm.__dict__()),
             "apikey": pm["sdrhu_key"]
diff --git a/owrx/service/__init__.py b/owrx/service/__init__.py
index 7bda36b..66a7880 100644
--- a/owrx/service/__init__.py
+++ b/owrx/service/__init__.py
@@ -57,7 +57,7 @@ class ServiceHandler(object):
         self.startupTimer = None
         self.source.addClient(self)
         props = self.source.getProps()
-        props.collect("center_freq", "samp_rate").wire(self.onFrequencyChange)
+        props.filter("center_freq", "samp_rate").wire(self.onFrequencyChange)
         if self.source.isAvailable():
             self.scheduleServiceStartup()
         self.scheduler = None
diff --git a/owrx/service/schedule.py b/owrx/service/schedule.py
index ade3976..62df44d 100644
--- a/owrx/service/schedule.py
+++ b/owrx/service/schedule.py
@@ -210,7 +210,7 @@ class ServiceScheduler(object):
         self.source.addClient(self)
         props = self.source.getProps()
         self.schedule = Schedule.parse(props)
-        props.collect("center_freq", "samp_rate").wire(self.onFrequencyChange)
+        props.filter("center_freq", "samp_rate").wire(self.onFrequencyChange)
         self.scheduleSelection()
 
     def shutdown(self):
diff --git a/owrx/source/__init__.py b/owrx/source/__init__.py
index 7726a0b..781db97 100644
--- a/owrx/source/__init__.py
+++ b/owrx/source/__init__.py
@@ -38,7 +38,7 @@ class SdrSource(ABC):
         # layer 0 reserved for profile properties
         self.props.addLayer(1, props)
         self.props.addLayer(2, Config.get())
-        self.rtlProps = self.props.collect(*self.getEventNames())
+        self.rtlProps = self.props.filter(*self.getEventNames())
 
         self.profile_id = None
         self.activateProfile()