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Estimate line of sight, distance, bearing, reciprocal bearing, antennas, power, station records, and field-kit needs.

Product Description

VHF & UHF Radio Field Planner+

Estimate line of sight, distance, bearing, reciprocal bearing, antennas, power, station records, and field-kit needs.

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About this app

Thank you for using VHF/UHF. You bring care and good judgment to your station, and we appreciate the effort you put into every setup, contact, and field trip.

VHF UHF Radio Field Planner brings antenna calculators, a ham radio logbook, equipment records, and offline reference to iPhone and iPad. Use it for amateur radio, GMRS, scanner listening, repeaters, POTA, SOTA, and field day.

ANTENNA AND RF CALCULATORS

– Estimate antenna line of sight and radio horizon from antenna heights.
– Compare distance and bearing between two station coordinates.
– Review free-space path loss, link budget, and Fresnel clearance.
– Enter known obstructions manually and review calculation assumptions.
– Calculate antenna length, feedline loss, gain, ERP, and EIRP.
– Convert watts, dBm, dBW, distance, and common measurement units.
– Explore SWR reflected power, repeater offsets, and battery runtime.
– Work through satellite Doppler, packet airtime, and digital radio estimates.
– Convert text to Morse code and Morse back to text.

YOUR STATION NOTEBOOK

– Save setups with radio, antenna, location, frequency, mode, and power.
– Save antenna heights, feedline length, gain, and loss.
– Compare two configurations before changing equipment.
– Organize owned radios, serial numbers, computers, and connections.
– Store custom antennas, operating locations, and transmit and receiver profiles.
– Track battery condition, firmware notes, service needs, and next actions.
– Choose a catalog radio to start a tracker entry with its details filled in.

PREPARE FOR THE FIELD

– Use Station & Field for setups, channel plans, sessions, and shared plans.
– Start a session from a saved setup.
– Return to an unfinished contact draft after a pause.
– Arrange repeater and channel plans in the order you need.
– Record separate transmit and receive tones, sources, and verification dates.
– Use checklists for radio checks, antenna work, and portable operation.
– Capture path estimates and prepare a field plan PDF from selected records.

LOG CONTACTS AND FOLLOW UP

– Record callsign, date, band, mode, frequency, signal reports, and notes.
– Add locations and Maidenhead grid squares to QSL contacts.
– Review QSL confirmation status and outstanding follow-ups.
– Link contacts, notes, and checklist runs to operating sessions.
– Review activity charts, station milestones, and operating habits.
– Search saved radios, contacts, and notes when you need a detail again.

REFERENCE YOU CAN KEEP CLOSE

– Search radio specifications, band plans, RF glossary terms, and Morse symbols.
– Read bundled radio theory and educational safety notes.
– Open available catalog citations and source dates.
– Save a catalog correction or source suggestion as a local daily note.

BACK UP AND SHARE YOUR WORK

– Export a JSON backup of your local records.
– Export contacts in ADIF and supported records in CSV.
– Review supported ADIF and CSV imports before adding records.
– Check column mappings, duplicate warnings, and interpreted values.
– Choose which details to include in a field plan PDF before sharing.

No account is required. Core calculators and bundled reference work offline. Your records stay on your device unless you export or share them. Apple purchases, place searches, and external links may need internet access.

Free use includes up to five saved records and backup export. Pro adds unlimited records, advanced calculators, and import, with monthly, annual, or lifetime purchase options through Apple.

Radio results are planning estimates. Check current rules, local coordination, equipment manuals, RF exposure requirements, and site conditions before transmitting or installing equipment.

For subscriptions:
Monthly Pro is a 1-month auto-renewable subscription.
Annual Pro is a 1-year auto-renewable subscription.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/