diff --git a/frequencies.txt b/frequencies.txt
index 819f5ea..984ac3b 100644
--- a/frequencies.txt
+++ b/frequencies.txt
@@ -311,3 +311,6 @@
 39765 2279.406
 36037 2235.009
 25544  143.050
+35938 2279.671
+39497 2276.036
+26958 2223.014
diff --git a/rfinfo.c b/rfinfo.c
index d572406..e2b6fbe 100644
--- a/rfinfo.c
+++ b/rfinfo.c
@@ -6,14 +6,21 @@ int main(int argc,char *argv[])
 {
   int i,firstfile=1,status;
   FILE *file;
-  char header[256],filename[128],nfd[32];
+  char header[256],filename[128],nfd[32],fileroot[128];
   double freq,samp_rate;
   float length;
   int nchan;
 
+  if (strchr(argv[1],'_')!=NULL) {
+    strncpy(fileroot,argv[1],strlen(argv[1])-11);
+    fileroot[strlen(argv[1])-11]='\0';
+  } else {
+    strcpy(fileroot,argv[1]);
+  }
+
   // Open first file
   for (i=0;;i++) {
-    sprintf(filename,"%s_%06d.bin",argv[1],i);
+    sprintf(filename,"%s_%06d.bin",fileroot,i);
     file=fopen(filename,"r");
     
     // Break if file does not exist