Running @ 12v and recorded @ varying distances
50 db @18cm
After conversion the results @ 2m are as follows
29db
Running @ 7v and recorded @ varying distances
50 db @ 7cm
After conversion the results @ 2m are as follows
19 db
Running @ 5v and recorded @ varying distances
50 db @ 2cm
After conversion the results @ 2m are as follows
10 db
