diff --git a/files/usr/local/bin/snrlog b/files/usr/local/bin/snrlog
index 32af2a32..56eb892a 100755
--- a/files/usr/local/bin/snrlog
+++ b/files/usr/local/bin/snrlog
@@ -2,14 +2,14 @@
 BEGIN {push @INC, '/www/cgi-bin'};                                              
 use perlfunc;                                                                   
                                                         
-my $filename = '/tmp/snrlog';                          
-# my $MAXLINES=48960;  # 17bytes * 60mins * 24 hours * 2 days 
-my $MAXLINES=132480;  # 23bytes * 60mins * 24 hours * 4 days   
+my $filename = '/tmp/snrlog'; 
+my $MAXLINES=2880;  # 2days worth 
 
 ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst)=localtime(time);          
 $d = sprintf ("%02d/%02d %02d:%02d:%02d",$mon, $mday,$hour, $min, $sec);                             
 ($s, $n) = get_wifi_signal(get_interface("wifi"));                              
-$s = $n if $s eq "N/A";
+$s = 0 if $s eq "N/A";
+$n = 0 if $n eq "N/A";
                                       
 open(my $fh, '>>', $filename) or die "Could not open file '$filename' $!";    
 print $fh "$d,$s,$n\n";