diff --git a/main.c b/main.c
index 46c35239..61903d19 100644
--- a/main.c
+++ b/main.c
@@ -266,6 +266,13 @@ int main(int argc, char * argv[]) {
   printf("Power LED On\n");
   #endif
 
+  if (mode == SSTV) {	
+    pinMode(29, OUTPUT);  // make SR_FRS transmit
+    digitalWrite(29, HIGH);
+    pinMode(28, OUTPUT);
+    digitalWrite(28, LOW);
+  }	
+
   config_file = fopen("sim.cfg", "w");
   fprintf(config_file, "%s %d %8.4f %8.4f %s", call, reset_count, lat_file, long_file, sim_yes);
   //    fprintf(config_file, "%s %d", call, reset_count);