diff --git a/htdocs/openwebrx.js b/htdocs/openwebrx.js
index 240374b..020f3c1 100644
--- a/htdocs/openwebrx.js
+++ b/htdocs/openwebrx.js
@@ -1158,6 +1158,7 @@ debug_ws_data_received=0;
 debug_ws_time_start = 0;
 max_clients_num=0;
 client_num = 0;
+var currentprofile;
 
 var COMPRESS_FFT_PAD_N=10; //should be the same as in csdr.c
 
@@ -1210,6 +1211,9 @@ function on_ws_recv(evt)
 						    }
 						}
 						waterfall_clear();
+
+                        currentprofile = config.profile_id;
+						$('#openwebrx-sdr-profiles-listbox').val(currentprofile);
                     break;
                     case "secondary_config":
                         window.secondary_fft_size = json.value.secondary_fft_size;
@@ -1241,6 +1245,9 @@ function on_ws_recv(evt)
                         listbox.innerHTML = json.value.map(function(profile){
                             return '<option value="' + profile.id + '">' + profile.name + "</option>";
                         }).join("");
+                        if (currentprofile) {
+						    $('#openwebrx-sdr-profiles-listbox').val(currentprofile);
+						}
                     break;
 					case "features":
 						for (var feature in json.value) {
diff --git a/owrx/connection.py b/owrx/connection.py
index f7f8dc5..cea86ce 100644
--- a/owrx/connection.py
+++ b/owrx/connection.py
@@ -164,6 +164,8 @@ class OpenWebRxReceiverClient(Client):
             config = dict((key, configProps[key]) for key in OpenWebRxReceiverClient.config_keys)
             # TODO mathematical properties? hmmmm
             config["start_offset_freq"] = configProps["start_freq"] - configProps["center_freq"]
+            # TODO this is a hack that only works because setting the profile always causes plenty of config change
+            config["profile_id"] = self.sdr.getId() + "|" + self.sdr.getProfileId()
             self.write_config(config)
 
             cf = configProps["center_freq"]
diff --git a/owrx/source.py b/owrx/source.py
index 428955c..4b7fe5c 100644
--- a/owrx/source.py
+++ b/owrx/source.py
@@ -89,7 +89,7 @@ class SdrService(object):
                 props = SdrService.sdrProps[id]
                 className = "".join(x for x in props["type"].title() if x.isalnum()) + "Source"
                 cls = getattr(sys.modules[__name__], className)
-                SdrService.sources[id] = cls(props, SdrService.getNextPort())
+                SdrService.sources[id] = cls(id, props, SdrService.getNextPort())
         return SdrService.sources
 
 
@@ -98,8 +98,10 @@ class SdrSourceException(Exception):
 
 
 class SdrSource(object):
-    def __init__(self, props, port):
+    def __init__(self, id, props, port):
+        self.id = id
         self.props = props
+        self.profile_id = None
         self.activateProfile()
         self.rtlProps = self.props.collect(
             "samp_rate", "nmux_memory", "center_freq", "ppm", "rf_gain", "lna_gain", "rf_amp", "antenna", "if_gain"
@@ -131,7 +133,10 @@ class SdrSource(object):
         profiles = self.props["profiles"]
         if profile_id is None:
             profile_id = list(profiles.keys())[0]
+        if profile_id == self.profile_id:
+            return;
         logger.debug("activating profile {0}".format(profile_id))
+        self.profile_id = profile_id
         profile = profiles[profile_id]
         for (key, value) in profile.items():
             # skip the name, that would overwrite the source name.
@@ -139,6 +144,12 @@ class SdrSource(object):
                 continue
             self.props[key] = value
 
+    def getId(self):
+        return self.id
+
+    def getProfileId(self):
+        return self.profile_id
+
     def getProfiles(self):
         return self.props["profiles"]
 
@@ -291,7 +302,7 @@ class Resampler(SdrSource):
         props["samp_rate"] = if_samp_rate
 
         self.sdr = sdr
-        super().__init__(props, port)
+        super().__init__(None, props, port)
 
     def start(self):
         self.modificationLock.acquire()