diff --git a/rigcommander.cpp b/rigcommander.cpp
index 1d2a30e..80c3e53 100644
--- a/rigcommander.cpp
+++ b/rigcommander.cpp
@@ -3486,6 +3486,27 @@ void rigCommander::determineRigCaps()
                                                        createMode(modePSK_R, 0x13, "PSK-R")});
             rigCaps.transceiveCommand = QByteArrayLiteral("\x1a\x05\x00\x95");
             break;
+    case model703:
+        rigCaps.modelName = QString("IC-703");
+        rigCaps.rigctlModel = 3055;
+        rigCaps.hasSpectrum = false;
+        rigCaps.inputs.clear();
+        rigCaps.hasLan = false;
+        rigCaps.hasEthernet = false;
+        rigCaps.hasWiFi = false;
+        rigCaps.hasFDcomms = false;
+        rigCaps.hasATU = true;
+        rigCaps.hasPTTCommand = false;
+        rigCaps.useRTSforPTT = true;
+        rigCaps.hasDataModes = false;
+        rigCaps.attenuators.push_back('\x20');
+        rigCaps.bands = standardHF;
+        rigCaps.bands.insert(rigCaps.bands.end(), standardVU.begin(), standardVU.end());
+        rigCaps.bands.push_back(bandGen);
+        rigCaps.modes = commonModes;
+        rigCaps.modes.insert(rigCaps.modes.end(), createMode(modeWFM, 0x06, "WFM"));
+        rigCaps.transceiveCommand = QByteArrayLiteral("\x1a\x05\x00\x00");
+        break;
         case model706:
             rigCaps.modelName = QString("IC-706");
             rigCaps.rigctlModel = 3009;
@@ -3555,6 +3576,50 @@ void rigCommander::determineRigCaps()
                               createMode(modeCW, 0x03, "CW"), createMode(modeCW_R, 0x07, "CW-R"),
                             };
             break;
+    case model737:
+        rigCaps.modelName = QString("IC-737");
+        rigCaps.rigctlModel = 3021;
+        rigCaps.hasSpectrum = false;
+        rigCaps.inputs.clear();
+        rigCaps.hasLan = false;
+        rigCaps.hasEthernet = false;
+        rigCaps.hasWiFi = false;
+        rigCaps.hasFDcomms = false;
+        rigCaps.hasATU = false;
+        rigCaps.hasPTTCommand = false;
+        rigCaps.useRTSforPTT = true;
+        rigCaps.hasDataModes = false;
+        rigCaps.hasIFShift = true; // untested
+        rigCaps.attenuators.push_back('\x20');
+        rigCaps.preamps.push_back('\x01');
+        rigCaps.bands = standardHF;
+        rigCaps.modes = { createMode(modeLSB, 0x00, "LSB"), createMode(modeUSB, 0x01, "USB"),
+                          createMode(modeAM, 0x02, "AM"), createMode(modeFM, 0x05, "FM"),
+                          createMode(modeCW, 0x03, "CW"), createMode(modeCW_R, 0x07, "CW-R"),
+                        };
+        break;
+        case model738:
+            rigCaps.modelName = QString("IC-738");
+            rigCaps.rigctlModel = 3022;
+            rigCaps.hasSpectrum = false;
+            rigCaps.inputs.clear();
+            rigCaps.hasLan = false;
+            rigCaps.hasEthernet = false;
+            rigCaps.hasWiFi = false;
+            rigCaps.hasFDcomms = false;
+            rigCaps.hasATU = false;
+            rigCaps.hasPTTCommand = false;
+            rigCaps.useRTSforPTT = true;
+            rigCaps.hasDataModes = false;
+            rigCaps.hasIFShift = true; // untested
+            rigCaps.attenuators.push_back('\x20');
+            rigCaps.preamps.push_back('\x01');
+            rigCaps.bands = standardHF;
+            rigCaps.modes = { createMode(modeLSB, 0x00, "LSB"), createMode(modeUSB, 0x01, "USB"),
+                              createMode(modeAM, 0x02, "AM"), createMode(modeFM, 0x05, "FM"),
+                              createMode(modeCW, 0x03, "CW"), createMode(modeCW_R, 0x07, "CW-R"),
+                            };
+            break;
         case model746:
             rigCaps.modelName = QString("IC-746");
             rigCaps.rigctlModel = 3023;
@@ -3582,7 +3647,27 @@ void rigCommander::determineRigCaps()
             rigCaps.modes = commonModes;
             rigCaps.transceiveCommand = QByteArrayLiteral("\x1a\x05\x00\x00");
             break;
-
+        case model756:
+            rigCaps.modelName = QString("IC-756");
+            rigCaps.rigctlModel = 3026;
+            rigCaps.hasSpectrum = false;
+            rigCaps.inputs.clear();
+            rigCaps.hasLan = false;
+            rigCaps.hasEthernet = false;
+            rigCaps.hasWiFi = false;
+            rigCaps.hasFDcomms = false;
+            rigCaps.hasATU = true;
+            rigCaps.hasTBPF = true;
+            rigCaps.preamps.push_back('\x01');
+            rigCaps.preamps.push_back('\x02');
+            rigCaps.attenuators.insert(rigCaps.attenuators.end(),{ '\x06' , '\x12', '\x18'});
+            rigCaps.antennas = {0x00, 0x01};
+            rigCaps.bands = standardHF;
+            rigCaps.bands.push_back(bandGen);
+            rigCaps.bsr[bandGen] = 0x11;
+            rigCaps.modes = commonModes;
+            rigCaps.transceiveCommand = QByteArrayLiteral("\x1a\x05\x00\x00");
+            break;
         case model756pro:
             rigCaps.modelName = QString("IC-756 Pro");
             rigCaps.rigctlModel = 3027;
diff --git a/rigidentities.cpp b/rigidentities.cpp
index 62ea5aa..ab79ccc 100644
--- a/rigidentities.cpp
+++ b/rigidentities.cpp
@@ -8,6 +8,9 @@ model_kind determineRadioModel(unsigned char rigID)
 
     model_kind rig;
 
+    rig = (model_kind)rigID;
+
+    /*
     switch(rigID)
     {
         case model7100:
@@ -81,6 +84,8 @@ model_kind determineRadioModel(unsigned char rigID)
             break;
     }
 
+    */
+
     return rig;
 }
 
diff --git a/rigidentities.h b/rigidentities.h
index d4c4209..5a8b53a 100644
--- a/rigidentities.h
+++ b/rigidentities.h
@@ -27,11 +27,15 @@ enum model_kind {
     model7410 = 0x80,
     model7850 = 0x8E,
     model9700 = 0xA2,
+    model703 = 0x68,
     model705 = 0xA4,
     model706 = 0x58,
     model718 = 0x5E,
     model736 = 0x40,
+    model737 = 0x3C,
+    model738 = 0x44,
     model746 = 0x56,
+    model756 = 0x50,
     model756pro = 0x5C,
     model756proii = 0x64,
     model756proiii = 0x6E,
diff --git a/wfmain.cpp b/wfmain.cpp
index 9a3860b..2288c48 100644
--- a/wfmain.cpp
+++ b/wfmain.cpp
@@ -3680,13 +3680,10 @@ void wfmain::receiveRigID(rigCapabilities rigCaps)
 
         setBandButtons();
 
-
         ui->tuneEnableChk->setEnabled(rigCaps.hasATU);
         ui->tuneNowBtn->setEnabled(rigCaps.hasATU);
 
-        ui->useRTSforPTTchk->blockSignals(true);
-        ui->useRTSforPTTchk->setChecked(rigCaps.useRTSforPTT);
-        ui->useRTSforPTTchk->blockSignals(false);
+        ui->useRTSforPTTchk->setChecked(prefs.forceRTSasPTT);
 
         ui->audioSystemCombo->setEnabled(false);
         ui->audioSystemServerCombo->setEnabled(false);