Ham Radio Tools is a simple program that is to assist ham radio operators. Ham Radio Tools comes complete with a contact log and handy calculators and tables that will assist beginning ham operators and even the pros.with Ham Radio Tools you can:-look up callsign information!-find current GPS location information-save each contact to a log database stored on the phone-review and edit each log entry-search for keywords in different fields of the log entry-calculate a simple quarter and half wave antenna length-calculate the wavelength of a frequency-many more*** Now includes band limits for All Amateur Licenses ****** Calculators for Yagi, Dipole, J-pole, and Vertical antennas ****** Callsign Lookup is now included!!! ***Callsign database is pulled from FCC website and updated daily! Callsign lookup works for U.S. callsigns ONLY.Results include address, current and previous license updates, date of any updates, type and class of license, and even includes a link to the FCC database for even more details. Address can be mapped on Google Maps by tapping on the address.The contact log allows you to store information about a completed contact including date, time started, time ended, frequency, mode, station, location, signal reports, and an area for general comments about the contact. A must for field day and general book keeping. Data and start time are filled in when starting the log to save time. End time can even be filled in automatically upon saving the log entry.The contact log also comes with a handy search feature for quickly locating that one of a kind long distance contact you like to brag about. The search is focused on fields chosen by the user. If you want to search for a specific call sign select station as the search location and enter the call sign in the search box. Search keywords are CASE SENSITIVE meaning capital or lowercase letter DO matter.A summary of the band limits for each class are included. Always refer to the official ARRL Band Plan when in doubt.Some simple formulas and calculators are included for quick reference in the field and includes: Yagi, Dipole, J-Pole, Vertical antennas, and wavelength calculator.