diff --git a/simulators/simtmd700.c b/simulators/simtmd700.c
new file mode 100644
index 000000000..b960add7f
--- /dev/null
+++ b/simulators/simtmd700.c
@@ -0,0 +1,167 @@
+// can run this using rigctl/rigctld and socat pty devices
+// gcc -o simyaesu simyaesu.c
+#define _XOPEN_SOURCE 600
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include "../include/hamlib/rig.h"
+
+#define BUFSIZE 256
+double freqA = 147000000;
+double freqB = 148000000;
+char tx_vfo = '0';
+char rx_vfo = '0';
+char modeA = '0';
+char modeB = '0';
+int band = 0;
+int control = 1;
+
+// ID 0310 == 310, Must drop leading zero
+typedef enum nc_rigid_e
+{
+    NC_RIGID_NONE            = 0,
+    NC_RIGID_FT450           = 241,
+    NC_RIGID_FT450D          = 244,
+    NC_RIGID_FT950           = 310,
+    NC_RIGID_FT891           = 135,
+    NC_RIGID_FT991           = 135,
+    NC_RIGID_FT2000          = 251,
+    NC_RIGID_FT2000D         = 252,
+    NC_RIGID_FTDX1200        = 583,
+    NC_RIGID_FTDX9000D       = 101,
+    NC_RIGID_FTDX9000Contest = 102,
+    NC_RIGID_FTDX9000MP      = 103,
+    NC_RIGID_FTDX5000        = 362,
+    NC_RIGID_FTDX3000        = 460,
+    NC_RIGID_FTDX101D        = 681,
+    NC_RIGID_FTDX101MP       = 682
+} nc_rigid_t;
+
+int
+getmyline(int fd, char *buf)
+{
+    char c;
+    int i = 0;
+    memset(buf, 0, BUFSIZE);
+
+    while (read(fd, &c, 1) > 0)
+    {
+        if (c == 0x0d) return strlen(buf);
+        buf[i++] = c;
+    }
+
+    return strlen(buf);
+}
+
+#if defined(WIN32) || defined(_WIN32)
+int openPort(char *comport) // doesn't matter for using pts devices
+{
+    int fd;
+    fd = open(comport, O_RDWR);
+
+    if (fd < 0)
+    {
+        perror(comport);
+    }
+
+    return fd;
+}
+
+#else
+int openPort(char *comport) // doesn't matter for using pts devices
+{
+    int fd = posix_openpt(O_RDWR);
+    char *name = ptsname(fd);
+
+    if (name == NULL)
+    {
+        perror("pstname");
+        return -1;
+    }
+
+    printf("name=%s\n", name);
+
+    if (fd == -1 || grantpt(fd) == -1 || unlockpt(fd) == -1)
+    {
+        perror("posix_openpt");
+        return -1;
+    }
+
+    return fd;
+}
+#endif
+
+
+
+int main(int argc, char *argv[])
+{
+    char buf[256];
+    int n;
+    int fd = openPort(argv[1]);
+
+    while (1)
+    {
+        if (getmyline(fd, buf))
+        {
+            printf("Cmd:%s\n", buf);
+        }
+        else { continue; }
+
+        if (strcmp(buf, "ID") == 0)
+        {
+            printf("%s\n", buf);
+            usleep(50 * 1000);
+            SNPRINTF(buf, sizeof(buf), "ID TM-D700\r");
+            n = write(fd, buf, strlen(buf));
+            printf("n=%d\n", n);
+
+            if (n <= 0) { perror("ID"); }
+        }
+        else if (strcmp(buf, "BC") == 0)
+        {
+            SNPRINTF(buf, sizeof(buf), "BC %d,%d\r", band, control);
+            n = write(fd, buf, strlen(buf));
+        }
+        else if (strncmp(buf, "BC ", 3) == 0)
+        {
+            sscanf(buf,"BC %d,%d",&band,&control);
+            SNPRINTF(buf, sizeof(buf), "BC %d,%d\r", band, control);
+            n = write(fd, buf, strlen(buf));
+        }
+        else if (strncmp(buf, "VMC ", 4) == 0)
+        {
+            SNPRINTF(buf, sizeof(buf), "VMC 0,0\r");
+            n = write(fd, buf, strlen(buf));
+        }
+        else if (strncmp(buf, "AI", 2) == 0)
+        {
+            SNPRINTF(buf, sizeof(buf), "AI 0\r");
+            n = write(fd, buf, strlen(buf));
+        }
+        else if (strncmp(buf, "FQ", 2) == 0)
+        {
+            SNPRINTF(buf, sizeof(buf), "FQ %011.0f,0\r", freqA);
+            n = write(fd, buf, strlen(buf));
+        }
+        else if (strncmp(buf, "FQ ", 3)==0)
+        {
+            sscanf(buf,"FQ %lf,0", &freqA);
+            SNPRINTF(buf, sizeof(buf), "FQ %011.0f,0\r", freqA);
+            n = write(fd, buf, strlen(buf));
+        }
+        else if (strncmp(buf, "MD", 2) == 0)
+        {
+            SNPRINTF(buf, sizeof(buf), "MD 0\r");
+            n = write(fd, buf, strlen(buf));
+        }
+        else if (strlen(buf) > 0)
+        {
+            fprintf(stderr, "Unknown command: %s\n", buf);
+        }
+
+    }
+
+    return 0;
+}