[iPhone God App] It was found using the RF Toolbox actually

RF Toolbox is the one and only RF App that you will ever need! Not only does it have a complete suite of RF calculators, but it also has a complement of GPS tools as well as a Sites Database. Now you can have access to your tower, antenna, and backhaul information in the palm of your hand. GPS Locate and Picture functions included in many tools.

RF TOOLS:
Fresnel Zone
Downtilt Coverage
Antenna Downtilt
dBm / Watt
Free Space Loss
Earth Curvature
Cable Loss
Link Budget
*New - EIRP
*New - Wave Length

GPS TOOLS:
Metric Conversion
Lat/Long Conversion
Distance and Bearing
Mid Point
Final Point
*New - Walk the Line
*New - Maps & Location Integration

SITES DATABASE:
*New - Group
Site Name
Description
Latitude & Longitude
*New - Altitude & Tower Height
Picture
Notes

*New - Import / Export CSV & KML to iTunes & Email

Must have for RF Engineers, Wireless Designers, Technicians, and Installers.