VHF / UHF Radio Field Planner

Thank you for using VHF/UHF. You take your station seriously, and we appreciate the care you put into every setup, contact, and field trip. Keep that work organized with tools made for everyday radio use. VHF UHF Radio Field Planner brings antenna calculators, a ham radio logbook, station records, and useful reference material together on iPhone and iPad. Keep the details of your home station, mobile rig, portable kit, or listening setup close at hand. PLAN YOUR RADIO PATH - Estimate antenna line of sight and radio horizon from antenna heights. - Check map distance, bearing, and reciprocal bearing between two locations. - Review free-space path loss, Fresnel clearance, and estimated link budget. - Enter obstruction details and see the assumptions behind a path result. - Save path analyses alongside the setup used to prepare them. WORK THROUGH RF QUESTIONS - Convert watts, dBm, dBW, distance, and common units. - Calculate antenna length, feedline loss, gain, ERP, and EIRP. - 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 decode Morse back to text. - Open Help for calculator inputs. BUILD A STATION YOU CAN REVISIT - Save complete setups with radio, antenna, location, frequency, and power. - Duplicate a setup to compare changes before buying or moving equipment. - Keep feedline length, antenna height, mode, and notes with the configuration. - Organize owned radios, serial numbers, computers, and radio connections. - Store antennas, operating locations, transmit profiles, and receiver profiles. - Track batteries, service needs, firmware notes, and the next job on each rig. TAKE YOUR NOTES INTO THE FIELD - Open Station & Field to prepare, operate, and share from one tab. - Start a field session from a saved setup instead of retyping station details. - Log callsigns, UTC times, sent and received reports, and contact notes. - Keep frequency and mode ready for the next contact. - Resume saved drafts and review active, ended, or upcoming sessions. - Organize repeater and channel plans with separate transmit and receive tones. - Keep channel sources, verification dates, and receive-only entries visible. - Use checklists for portable operation, radio checks, and station maintenance. KEEP A USEFUL RADIO LOG - Search QSL contacts by callsign, band, mode, grid square, and notes. - Review confirmation status and keep follow-up work in view. - Link contacts and notes to the equipment and sessions behind them. - Look back at activity charts, station milestones, and operating habits. - Prepare a field plan PDF with the sections you choose to share. REFERENCE AND FILES - Open More for searchable radio specifications, band plans, and glossary terms. - Read bundled radio theory, Morse reference, and educational safety notes. - Review supported ADIF contacts and CSV equipment, locations, and channels. - Check mappings and duplicates before applying an import. - Export a JSON backup or save selected records in portable file formats. No account is required. Core calculators and bundled reference work offline; maps, Apple purchases, and external links may need internet access. Your records stay local unless you choose to export or share them. Free use includes up to five saved records and backup export. Pro adds unlimited records, import, and advanced planning tools, with monthly, annual, and lifetime purchase options through Apple. Calculations 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/