Search And Promote Query for Proximity Search with latitude & longitude

Say you have +30.4613-084.6139, then below query will fetch the output.

S&P URL?sp_q_location_1=%2b30.4613-084.6139&sp_x_1=latlong&sp_q_max_1=100&sp_s=latlong_proximity
[Replace '+' with URL encoding character '%2b']