diff --git a/tests/test_commb.py b/tests/test_commb.py
index c53187c..9043765 100644
--- a/tests/test_commb.py
+++ b/tests/test_commb.py
@@ -1,5 +1,5 @@
 from pyModeS import bds, commb
-from pyModeS import ehs, els    # deprecated
+# from pyModeS import ehs, els    # deprecated
 
 def test_bds20_callsign():
     assert bds.bds20.cs20("A000083E202CC371C31DE0AA1CCF") == 'KLM1017_'
@@ -8,9 +8,6 @@ def test_bds20_callsign():
     assert commb.cs20("A000083E202CC371C31DE0AA1CCF") == 'KLM1017_'
     assert commb.cs20("A0001993202422F2E37CE038738E") == 'IBK2873_'
 
-    assert els.cs20("A000083E202CC371C31DE0AA1CCF") == 'KLM1017_'
-    assert els.cs20("A0001993202422F2E37CE038738E") == 'IBK2873_'
-
 
 def test_bds40_functions():
     assert bds.bds40.alt40mcp("A000029C85E42F313000007047D3") == 3008
@@ -21,10 +18,6 @@ def test_bds40_functions():
     assert commb.alt40fms("A000029C85E42F313000007047D3") == 3008
     assert commb.p40baro("A000029C85E42F313000007047D3") == 1020.0
 
-    assert ehs.alt40mcp("A000029C85E42F313000007047D3") == 3008
-    assert ehs.alt40fms("A000029C85E42F313000007047D3") == 3008
-    assert ehs.p40baro("A000029C85E42F313000007047D3") == 1020.0
-
 
 def test_bds50_functions():
     assert bds.bds50.roll50("A000139381951536E024D4CCF6B5") == 2.1
@@ -41,13 +34,6 @@ def test_bds50_functions():
     assert commb.rtrk50("A000139381951536E024D4CCF6B5") == 0.125
     assert commb.tas50("A000139381951536E024D4CCF6B5") == 424
 
-    assert ehs.roll50("A000139381951536E024D4CCF6B5") == 2.1
-    assert ehs.roll50("A0001691FFD263377FFCE02B2BF9") == -0.4     # signed value
-    assert ehs.trk50("A000139381951536E024D4CCF6B5") == 114.258
-    assert ehs.gs50("A000139381951536E024D4CCF6B5") == 438
-    assert ehs.rtrk50("A000139381951536E024D4CCF6B5") == 0.125
-    assert ehs.tas50("A000139381951536E024D4CCF6B5") == 424
-
 
 def test_bds60_functions():
     assert bds.bds60.hdg60("A00004128F39F91A7E27C46ADC21") == 42.715
@@ -61,9 +47,3 @@ def test_bds60_functions():
     assert commb.mach60("A00004128F39F91A7E27C46ADC21") == 0.42
     assert commb.vr60baro("A00004128F39F91A7E27C46ADC21") == -1920
     assert commb.vr60ins("A00004128F39F91A7E27C46ADC21") == -1920
-
-    assert ehs.hdg60("A00004128F39F91A7E27C46ADC21") == 42.715
-    assert ehs.ias60("A00004128F39F91A7E27C46ADC21") == 252
-    assert ehs.mach60("A00004128F39F91A7E27C46ADC21") == 0.42
-    assert ehs.vr60baro("A00004128F39F91A7E27C46ADC21") == -1920
-    assert ehs.vr60ins("A00004128F39F91A7E27C46ADC21") == -1920