Range for spirits?

Ive been wondering for quite a while now what the range of Spirits are cos as everyone knows it says for creatures in range but how far is the range?
If someone could answer this i would be very greatful.

I think its similar to ur total map range. Say if u stand where the spirit is, it will reach any creature that appears in ur radar from that position.

But this is a non confirmed guess. I cannot log to the game right now but i'll test it tonight and post the confirmation, unless someone can confirm this for me.

If you place a spirit, as long as the spirit is in your radar you should have the effect in you.

Ok thanks