diff --git a/ComLib.h b/ComLib.h
index 91e92fb..700e64f 100644
--- a/ComLib.h
+++ b/ComLib.h
@@ -32,7 +32,7 @@
 #include <SHELLAPI.H>
 								//AA6YQ  1.65D->1.66G,  JE3HHT 1.67
 #define	VERID	"Ver1.70"       //K6TU   1.68A -> 1.70A Hide FlexRadio Reserved and IQ Audio Devices
-#define	VERBETA	"G"             //JA7UDE 1.70A -> 1.70B G3WYW FT-991 CAT support
+#define	VERBETA	"H"             //JA7UDE 1.70A -> 1.70B G3WYW FT-991 CAT support
 								//AA6YQ  1.70C          added COM16-32 to PTT/FSK port selector and Radio port selector, added 991 to Yaesu Group selector entry
 								//AA6YQ  1.70D          prevent shift > 4000 Hz so CSlideFFT::Create does not divide by zero
 								//AA6YQ  1.70E          limit PTT/FSK port selector and Radio port selector to display only 8 items
@@ -43,6 +43,7 @@
 								//AA6YQ  1.70F          notify user if attempting to open FSK TxD port at low speed, as many serial port devices can't do this
 								//                      accept RXM_SOUNDSOURCE message to change soundcard source channel (mono, left, right)
 								//JA7UDE 1.70G          translate new 1.70F error message into Japanese
+								//AA6YQ  1.70H          correct regression in 1.70E that prevents correct frequency tracking for FT-891 and FT-991
 
 #define	VERTTL2	"MMTTY "VERID VERBETA
 #define	VERTTL  VERTTL2" (C) JE3HHT 2000-2010."
diff --git a/VerDsp.cpp b/VerDsp.cpp
index 8311a55..68b18b3 100644
--- a/VerDsp.cpp
+++ b/VerDsp.cpp
@@ -47,7 +47,8 @@ __fastcall TVerDspDlg::TVerDspDlg(TComponent* AOwner)
 	LTNX->Caption =
 	"------ Programming ------\r\n"
 	"Stu, K6TU (Updated 1.66A -> 1.70A)\r\n"
-	"Dave, AA6YQ (updated 1.65D -> 1.66G, 1.70F)\r\n"
+	"Paul, G3WYW (Updated 1.70A -> 1.70B)\r\n"
+	"Dave, AA6YQ (updated 1.65D -> 1.66G, 1.70B -> 1.70H)\r\n"
 	"------ Help, FAQ and Remote mode, etc... ------\r\n"
 	"Jan, KX2A  Ken, VE5KC  Bill, KB4IJ  Andy, K3UK(KB2EOQ)\r\n"
 	"Bill, K5YG    Phil, GU0SUP,  Josef, OK2WO  Oba, JA7UDE\r\n"
diff --git a/cradio.cpp b/cradio.cpp
index 468210c..86e60c5 100644
--- a/cradio.cpp
+++ b/cradio.cpp
@@ -791,7 +791,9 @@ void CCradio::CatchPoll(BYTE c)
 		case RADIO_POLLFT9000:
 		case RADIO_POLLFT2000:
         case RADIO_POLLFT950:
-        case RADIO_POLLFT450:
+		case RADIO_POLLFT450:
+		case RADIO_POLLFT891:      //1.70H
+		case RADIO_POLLFT991:      //1.70H
 			if( m_rxcnt < sizeof(m_rxbuf) ){
 				if( (c != 0x0d) && (c != 0x0f) ){
 					if( (c != ' ') || m_rxcnt ){
diff --git a/mmtty.exe b/mmtty.exe
new file mode 100644
index 0000000..4d9d869
Binary files /dev/null and b/mmtty.exe differ
diff --git a/mmtty.map b/mmtty.map
index 107cce8..ff1b762 100644
--- a/mmtty.map
+++ b/mmtty.map
@@ -1,6 +1,6 @@
 
  Start Length Name Class
- 0001:00401000 0003BF6C4H _TEXT                  CODE
- 0002:007C1000 00003B620H _DATA                  DATA
- 0003:007FC620 000032568H _BSS                   BSS
+ 0001:00401000 00037FD98H _TEXT                  CODE
+ 0002:00781000 00003A9B8H _DATA                  DATA
+ 0003:007BB9B8 000032158H _BSS                   BSS
  0004:00000000 0000000F8H _TLS                   TLS
diff --git a/mmtty.tds b/mmtty.tds
index 94be446..357cd60 100644
Binary files a/mmtty.tds and b/mmtty.tds differ