while (<LOGFILE>) {
chomp $_;
if ($_[0] eq $lastline ) {
    if ($_[0] eq "1sec CDMA Event DtiC(0)")    { 
         #average those things or whatever you neeed to do
    }elsif ( $_[0] eq "Generic Scanner PN Measurement DtiC(0)") { 
         #average those things or whatever you need to do
    }
} else {
    #determine which part of the tuple this line is and 
    #store Rxpower/add Rxpower and massage lat/long into strings 
}

$lastline = $_[[0];
}