diff --git a/groops.xsd b/groops.xsd
index f3154a56..c18a27cd 100644
--- a/groops.xsd
+++ b/groops.xsd
@@ -2675,7 +2675,7 @@
 								<xs:documentation>variable {station} available. station metadata (antennas, receivers, ...)</xs:documentation>
 							</xs:annotation>
 						</xs:element>
-						<xs:element name="inputfileAntennaDefinition" type="filename" default="{groopsDataDir}/gnss/receiverStation/antennaDefinition/igs/igs14/antennaDefinition_igs14.dat">
+						<xs:element name="inputfileAntennaDefinition" type="filename" default="{groopsDataDir}/gnss/receiverStation/antennaDefinition/igs/igs20/antennaDefinition_igs20.dat">
 							<xs:annotation>
 								<xs:documentation>antenna center offsets and variations</xs:documentation>
 							</xs:annotation>
@@ -3004,12 +3004,12 @@
 								<xs:documentation>ascii file with transmitter PRNs, used to loop variable {prn}</xs:documentation>
 							</xs:annotation>
 						</xs:element>
-						<xs:element name="inputfileTransmitterInfo" type="filename" default="{groopsDataDir}/gnss/transmitter/transmitterInfo/igs/igs14/transmitterInfo_igs14.{prn}.xml">
+						<xs:element name="inputfileTransmitterInfo" type="filename" default="{groopsDataDir}/gnss/transmitter/transmitterInfo/igs/igs20/transmitterInfo_igs20.{prn}.xml">
 							<xs:annotation>
 								<xs:documentation>variable {prn} available</xs:documentation>
 							</xs:annotation>
 						</xs:element>
-						<xs:element name="inputfileAntennaDefintion" type="filename" default="{groopsDataDir}/gnss/transmitter/antennaDefinition/igs/igs14/antennaDefinition_igs14.dat">
+						<xs:element name="inputfileAntennaDefintion" type="filename" default="{groopsDataDir}/gnss/transmitter/antennaDefinition/igs/igs20/antennaDefinition_igs20.dat">
 							<xs:annotation>
 								<xs:documentation>phase centers and variations (ANTEX like)</xs:documentation>
 							</xs:annotation>
diff --git a/source/gnss/gnssReceiverGenerator/gnssReceiverGeneratorStationNetwork.cpp b/source/gnss/gnssReceiverGenerator/gnssReceiverGeneratorStationNetwork.cpp
index b3f8df99..381eade8 100644
--- a/source/gnss/gnssReceiverGenerator/gnssReceiverGeneratorStationNetwork.cpp
+++ b/source/gnss/gnssReceiverGenerator/gnssReceiverGeneratorStationNetwork.cpp
@@ -42,7 +42,7 @@ GnssReceiverGeneratorStationNetwork::GnssReceiverGeneratorStationNetwork(Config
     readConfig(config, "inputfileStationList",               fileNameStationList,     Config::MUSTSET,  "", "ascii file with station names");
     readConfig(config, "maxStationCount",                    maxStationCount,         Config::OPTIONAL, "", "maximum number of stations to be used");
     readConfig(config, "inputfileStationInfo",               fileNameStationInfo,     Config::MUSTSET,  "{groopsDataDir}/gnss/receiverStation/stationInfo/igs/stationInfo.{station}.xml", "variable {station} available. station metadata (antennas, receivers, ...)");
-    readConfig(config, "inputfileAntennaDefinition",         fileNameAntennaDef,      Config::MUSTSET,  "{groopsDataDir}/gnss/receiverStation/antennaDefinition/igs/igs14/antennaDefinition_igs14.dat", "antenna center offsets and variations");
+    readConfig(config, "inputfileAntennaDefinition",         fileNameAntennaDef,      Config::MUSTSET,  "{groopsDataDir}/gnss/receiverStation/antennaDefinition/igs/igs20/antennaDefinition_igs20.dat", "antenna center offsets and variations");
     if(readConfigChoice(config, "noAntennaPatternFound", choice, Config::MUSTSET, "ignoreObservation", "what should happen if no antenna pattern is found for an observation"))
     {
       if(readConfigChoiceElement(config, "ignoreObservation",   choice, "ignore observation if no matching pattern is found"))
diff --git a/source/gnss/gnssTransmitterGenerator/gnssTransmitterGeneratorGnss.cpp b/source/gnss/gnssTransmitterGenerator/gnssTransmitterGeneratorGnss.cpp
index 3e06c767..25bc00a0 100644
--- a/source/gnss/gnssTransmitterGenerator/gnssTransmitterGeneratorGnss.cpp
+++ b/source/gnss/gnssTransmitterGenerator/gnssTransmitterGeneratorGnss.cpp
@@ -31,8 +31,8 @@ GnssTransmitterGeneratorGnss::GnssTransmitterGeneratorGnss(Config &config)
     std::string choice;
 
     readConfig(config, "inputfileTransmitterList",  fileNamesTransmitterList, Config::MUSTSET,  "{groopsDataDir}/gnss/transmitter/transmitterList.gps.txt", "ascii file with transmitter PRNs, used to loop variable {prn}");
-    readConfig(config, "inputfileTransmitterInfo",  fileNameTransmitterInfo,  Config::MUSTSET,  "{groopsDataDir}/gnss/transmitter/transmitterInfo/igs/igs14/transmitterInfo_igs14.{prn}.xml", "variable {prn} available");
-    readConfig(config, "inputfileAntennaDefintion", fileNameAntennaDef,       Config::MUSTSET,  "{groopsDataDir}/gnss/transmitter/antennaDefinition/igs/igs14/antennaDefinition_igs14.dat", "phase centers and variations (ANTEX like)");
+    readConfig(config, "inputfileTransmitterInfo",  fileNameTransmitterInfo,  Config::MUSTSET,  "{groopsDataDir}/gnss/transmitter/transmitterInfo/igs/igs20/transmitterInfo_igs20.{prn}.xml", "variable {prn} available");
+    readConfig(config, "inputfileAntennaDefintion", fileNameAntennaDef,       Config::MUSTSET,  "{groopsDataDir}/gnss/transmitter/antennaDefinition/igs/igs20/antennaDefinition_igs20.dat", "phase centers and variations (ANTEX like)");
     if(readConfigChoice(config, "noAntennaPatternFound", choice, Config::MUSTSET, "useNearestFrequency", "what should happen is no antenna pattern is found for an observation"))
     {
       if(readConfigChoiceElement(config, "ignoreObservation",   choice, "ignore observation if no matching pattern is found"))