nokta impact

Hi friends
few days ago i have got my first ever Metal Detector namly nokta impact. i like this device very much and untill ow i have got 5 pennies, 5 cents and few iron pieces. i visited one of my friend home and search there in a small garden. 
i want to know if any one of this site have this? can some one tell me best setting for it? 
if any one is living in Bad Homburg and we can hunt togather? please reply and i will be very pleased to join you.
thanks
uniquesaji