diff --git a/README.rst b/README.rst
index 91b9ff1..c1eda9f 100644
--- a/README.rst
+++ b/README.rst
@@ -72,13 +72,15 @@ To install the latest version development from the GitHub:
   pip install git+https://github.com/junzis/pyModeS
 
 
-To install the stable version (2.0) from pip:
+To install the latest stable version from pip:
 
 ::
 
   pip install pyModeS
 
 
+The library requires several dependencies (``numpy``, ``pyzmq``, ``pyrtlsdr``), which will be installed automatically when you install pyModeS using ``pip``.
+
 
 View live traffic (modeslive)
 ----------------------------------------------------
diff --git a/pyModeS/extra/tcpclient.py b/pyModeS/extra/tcpclient.py
index 784176e..0b856da 100644
--- a/pyModeS/extra/tcpclient.py
+++ b/pyModeS/extra/tcpclient.py
@@ -1,10 +1,8 @@
-"""
-Stream beast raw data from a TCP server, convert to mode-s messages
-"""
+"""Stream beast raw data from a TCP server, convert to mode-s messages."""
+
 from __future__ import print_function, division
 import os
 import sys
-import socket
 import time
 import pyModeS as pms
 from threading import Thread
@@ -32,7 +30,7 @@ class BaseClient(Thread):
     def connect(self):
         self.socket = zmq.Context().socket(zmq.STREAM)
         self.socket.setsockopt(zmq.LINGER, 0)
-        self.socket.setsockopt(zmq.RCVTIMEO, 2000)
+        self.socket.setsockopt(zmq.RCVTIMEO, 10000)
         self.socket.connect("tcp://%s:%s" % (self.host, self.port))
 
     def read_raw_buffer(self):
diff --git a/setup.py b/setup.py
index 4cd5f8e..7b80193 100644
--- a/setup.py
+++ b/setup.py
@@ -74,7 +74,7 @@ setup(
     # your project is installed. For an analysis of "install_requires" vs pip's
     # requirements files see:
     # https://packaging.python.org/en/latest/requirements.html
-    install_requires=["numpy", "argparse"],
+    install_requires=["numpy", "argparse", "pyzmq", "pyrtlsdr"],
     # List additional groups of dependencies here (e.g. development
     # dependencies). You can install these using the following syntax,
     # for example:
diff --git a/tests/test_adsb.py b/tests/test_adsb.py
index e4b14d6..58e5015 100644
--- a/tests/test_adsb.py
+++ b/tests/test_adsb.py
@@ -2,12 +2,13 @@ from pyModeS import adsb
 
 # === TEST ADS-B package ===
 
+
 def test_adsb_icao():
     assert adsb.icao("8D406B902015A678D4D220AA4BDA") == "406B90"
 
 
 def test_adsb_category():
-    assert adsb.category("8D406B902015A678D4D220AA4BDA") == 5
+    assert adsb.category("8D406B902015A678D4D220AA4BDA") == 0
 
 
 def test_adsb_callsign():
@@ -15,9 +16,12 @@ def test_adsb_callsign():
 
 
 def test_adsb_position():
-    pos = adsb.position("8D40058B58C901375147EFD09357",
-                        "8D40058B58C904A87F402D3B8C59",
-                        1446332400, 1446332405)
+    pos = adsb.position(
+        "8D40058B58C901375147EFD09357",
+        "8D40058B58C904A87F402D3B8C59",
+        1446332400,
+        1446332405,
+    )
     assert pos == (49.81755, 6.08442)
 
 
@@ -29,27 +33,35 @@ def test_adsb_position_with_ref():
 
 
 def test_adsb_airborne_position_with_ref():
-    pos = adsb.airborne_position_with_ref("8D40058B58C901375147EFD09357",
-                                          49.0, 6.0)
+    pos = adsb.airborne_position_with_ref(
+        "8D40058B58C901375147EFD09357", 49.0, 6.0
+    )
     assert pos == (49.82410, 6.06785)
-    pos = adsb.airborne_position_with_ref("8D40058B58C904A87F402D3B8C59",
-                                          49.0, 6.0)
+    pos = adsb.airborne_position_with_ref(
+        "8D40058B58C904A87F402D3B8C59", 49.0, 6.0
+    )
     assert pos == (49.81755, 6.08442)
 
 
 def test_adsb_surface_position_with_ref():
-    pos = adsb.surface_position_with_ref("8FC8200A3AB8F5F893096B000000",
-                                         -43.5, 172.5)
+    pos = adsb.surface_position_with_ref(
+        "8FC8200A3AB8F5F893096B000000", -43.5, 172.5
+    )
     assert pos == (-43.48564, 172.53942)
 
 
 def test_adsb_surface_position():
-    pos = adsb.surface_position("8CC8200A3AC8F009BCDEF2000000",
-                                "8FC8200A3AB8F5F893096B000000",
-                                0, 2,
-                                -43.496, 172.558)
+    pos = adsb.surface_position(
+        "8CC8200A3AC8F009BCDEF2000000",
+        "8FC8200A3AB8F5F893096B000000",
+        0,
+        2,
+        -43.496,
+        172.558,
+    )
     assert pos == (-43.48564, 172.53942)
 
+
 def test_adsb_alt():
     assert adsb.altitude("8D40058B58C901375147EFD09357") == 39000
 
@@ -58,10 +70,10 @@ def test_adsb_velocity():
     vgs = adsb.velocity("8D485020994409940838175B284F")
     vas = adsb.velocity("8DA05F219B06B6AF189400CBC33F")
     vgs_surface = adsb.velocity("8FC8200A3AB8F5F893096B000000")
-    assert vgs == (159, 182.88, -832, 'GS')
-    assert vas == (375, 243.98, -2304, 'TAS')
-    assert vgs_surface == (19.0, 42.2, 0 , 'GS')
-    assert adsb.altitude_diff('8D485020994409940838175B284F') == 550
+    assert vgs == (159, 182.88, -832, "GS")
+    assert vas == (375, 243.98, -2304, "TAS")
+    assert vgs_surface == (19.0, 42.2, 0, "GS")
+    assert adsb.altitude_diff("8D485020994409940838175B284F") == 550
 
 
 # def test_nic():
diff --git a/tox.ini b/tox.ini
index 66cae0a..9a0ca74 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,4 +6,6 @@ envlist = py2,py3
 deps =
   pytest
   numpy
+  pyzmq
+  pyrtlsdr
 commands = py.test