diff --git a/simulators/simjupiter.c b/simulators/simjupiter.c
new file mode 100644
index 000000000..6d4849d4e
--- /dev/null
+++ b/simulators/simjupiter.c
@@ -0,0 +1,117 @@
+// can run this using rigctl/rigctld and socat pty devices
+// gcc -o simft897 simft897.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
+
+float freqA = 14074000;
+float freqB = 14074500;
+char tx_vfo = '0';
+char rx_vfo = '0';
+char modeA = '1';
+char modeB = '1';
+int width_main = 500;
+int width_sub = 700;
+
+
+int
+getmyline(int fd, unsigned char *buf)
+{
+    unsigned char c;
+    int i = 0;
+    int n = 0;
+    memset(buf, 0, BUFSIZE);
+
+    while (i < 5 && read(fd, &c, 1) > 0)
+    {
+        buf[i++] = c;
+        n++;
+    }
+
+    printf("n=%d %02x %02x %02x %02x %02x\n", n, buf[0], buf[1], buf[2], buf[3],
+           buf[4]);
+    return n;
+}
+
+#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[])
+{
+    unsigned char buf[256];
+    unsigned char *pbuf;
+    int n;
+
+
+again:
+    int fd = openPort(argv[1]);
+
+    while (1)
+    {
+        int bytes = getmyline(fd, buf);
+
+        if (bytes == 0)
+        {
+            close(fd);
+            goto again;
+        }
+
+        if (bytes != 5)
+        {
+            printf("Not 5 bytes?  bytes=%d\n", bytes);
+        }
+
+        switch (buf[0])
+        {
+        case '?': printf("Query %c\n", buf[1]);break;
+        case '*': printf("Set %c\n", buf[1]);break;
+
+        default: printf("Unknown cmd=%02x\n", buf[4]);
+        }
+    }
+
+    return 0;
+}