diff --git a/apps/modes_rx b/apps/modes_rx
index 8fe8334..8c39aee 100755
--- a/apps/modes_rx
+++ b/apps/modes_rx
@@ -27,33 +27,6 @@ import air_modes
 from air_modes.exceptions import *
 import zmq
 
-class screen_printer(threading.Thread):
-    def __init__(self, position, context, addr=None, port=None):
-        threading.Thread.__init__(self)
-        self._subscriber = context.socket(zmq.SUB)
-        if addr is not None:
-            self._subscriber.connect("tcp://%s:%i" % (addr, port))
-        else:
-            self._subscriber.connect("inproc://modes-radio-pub")
-        self._subscriber.setsockopt(zmq.SUBSCRIBE, "dl_data")
-
-        self._printer = air_modes.output_print(position)
-        self.done = threading.Event()
-        self.finished = threading.Event()
-        self.setDaemon(True)
-        self.start()
-
-    def run(self):
-        while not self.done.is_set():
-            [address, msg] = self._subscriber.recv_multipart() #blocking
-            try:
-                self._printer.output(msg)
-            except ADSBError:
-                pass
-
-        self._subscriber.close()
-        self.finished.set()
-
 #todo: maybe move plugins to separate programs (flightgear, SBS1, etc.)
 def main():
   my_position = None
@@ -99,7 +72,6 @@ def main():
     kmlgen = air_modes.output_kml(options.kml, dbname, my_position, lock) #create a KML generating thread to read from the db
     relay.subscribe("dl_data", sqldb.insert)
 
-  printer = None
   if options.no_print is not True:
     relay.subscribe("dl_data", air_modes.output_print(my_position).output)
 
@@ -115,8 +87,7 @@ def main():
   tb.run()
   tb.cleanup()
 
-  relay.shutdown.set()
-  relay.finished.wait(0.2)
+  relay.close()
 
   if options.kml is not None:
     kmlgen.close()
diff --git a/python/radio.py b/python/radio.py
index da1f41a..09951cb 100644
--- a/python/radio.py
+++ b/python/radio.py
@@ -19,7 +19,7 @@
 #
 
 # Radio interface for Mode S RX.
-# Handles all Gnuradio-related functionality.
+# Handles all hardware- and source-related functionality
 # You pass it options, it gives you data.
 # It uses the pubsub interface to allow clients to subscribe to its data feeds.
 
@@ -31,39 +31,7 @@ import air_modes
 import zmq
 import threading
 import time
-
-DOWNLINK_DATA_TYPE = "dl_data"
-
-#ZMQ message publisher.
-#TODO: limit high water mark
-#TODO: limit number of subscribers
-#NOTE: this is obsoleted by zmq_pubsub_iface
-class radio_publisher(threading.Thread):
-  def __init__(self, port, context, queue):
-    threading.Thread.__init__(self)
-    self._queue = queue
-    self._publisher = context.socket(zmq.PUB)
-    if port is None:
-      self._publisher.bind("inproc://modes-radio-pub")
-    else:
-      self._publisher.bind("tcp://*:%i" % port)
-
-    self.setDaemon(True)
-    self.shutdown = threading.Event()
-    self.finished = threading.Event()
-    self.start()
-
-  def run(self):
-    done_yet = False
-    while not self.shutdown.is_set() and not done_yet:
-      if self.shutdown.is_set(): #gives it another round after done is set
-        done_yet = True      #so we can clean up the last of the queue
-      while not self._queue.empty_p():
-        self._publisher.send_multipart([DOWNLINK_DATA_TYPE, self._queue.delete_head().to_string()])
-      time.sleep(0.1) #can use time.sleep(0) to yield, but it'll suck a whole CPU
-    self._publisher.close()
-    self.finished.set()
-      
+import re
 
 class modes_radio (gr.top_block, pubsub):
   def __init__(self, options, context):
@@ -216,7 +184,6 @@ class modes_radio (gr.top_block, pubsub):
                 
     else:
       #semantically detect whether it's ip.ip.ip.ip:port or filename
-      import re
       if ':' in options.source:
         try:
           ip, port = re.search("(.*)\:(\d{1,5})", options.source).groups()
diff --git a/python/rx_path.py b/python/rx_path.py
index edf4993..1178099 100644
--- a/python/rx_path.py
+++ b/python/rx_path.py
@@ -1,5 +1,5 @@
 #
-# Copyright 2012 Corgan Labs
+# Copyright 2012, 2013 Corgan Labs, Nick Foster
 # 
 # This file is part of gr-air-modes
 # 
diff --git a/python/zmq_socket.py b/python/zmq_socket.py
index 9a5a168..10f9282 100644
--- a/python/zmq_socket.py
+++ b/python/zmq_socket.py
@@ -119,7 +119,7 @@ def pr(x):
 if __name__ == "__main__":
     #create socket pair
     context = zmq.Context(1)
-    sock1 = zmq_pubsub_iface(context, subaddr="inproc://sock2-pub", pubaddr=["inproc://sock1-pub"])
+    sock1 = zmq_pubsub_iface(context, subaddr="inproc://sock2-pub", pubaddr="inproc://sock1-pub")
     sock2 = zmq_pubsub_iface(context, subaddr="inproc://sock1-pub", pubaddr=["inproc://sock2-pub", "tcp://*:5433"])
     sock3 = zmq_pubsub_iface(context, subaddr="tcp://localhost:5433", pubaddr=None)
 
@@ -128,10 +128,10 @@ if __name__ == "__main__":
     sock3.subscribe("data3", pr)
 
     for i in range(10):
-        #sock1["data2"] = "HOWDY"
-        #sock2["data3"] = "DRAW"
+        sock1["data2"] = "HOWDY"
+        sock2["data3"] = "DRAW"
         sock2["data1"] = "PARDNER"
-        #time.sleep(0.1)
+        time.sleep(0.1)
 
     sock1.close()
     sock2.close()