1: Same-call match 1 2: Different call: not Valid or frequency difference >=110 Hz; skip 3: Different call: not Valid or frequency difference >=110 Hz; skip 4: Different call: not Valid or frequency difference >=110 Hz; skip 5: Different call: not Valid or frequency difference >=110 Hz; skip 6: Different call: not Valid or frequency difference >=110 Hz; skip 7: Different call: not Valid or frequency difference >=110 Hz; skip 8: Different Valid call: similarity 17%; skip 9: Different call: not Valid or frequency difference >=110 Hz; skip 10: Different call: not Valid or frequency difference >=110 Hz; skip 11: Same-call match 2