# AMRT Amateur Radio RF Toolkit

> Ham antenna & VSWR calculators

Canonical page: [https://chrome-stats.com/d/id6774462917](https://chrome-stats.com/d/id6774462917)

## Overview

- **ID:** `id6774462917`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** APPRICODE SOFTWARE CONSULTANCY LTD.
- **Category:** Utilities
- **Version:** 1.0
- **Last updated:** 2026-06-09
- **First published:** 2026-06-09
- **Size:** 16 MB
- **Data as of:** 2026-09-22
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/amrt-amateur-radio-rf-toolkit/id6774462917)
- **Website:** [https://appricode.com/amrt/](https://appricode.com/amrt/)
- **Privacy policy:** [https://appricode.com/amrt/privacy](https://appricode.com/amrt/privacy)

## Description

Antenna lengths, VSWR, coax loss, Smith chart, resistor codes & Maidenhead grid — 26 amateur-radio calculators and references, all fully offline.

Your amateur-radio bench, in your pocket — and it works completely offline.

AMRT brings the calculators and references hams reach for most into one fast, ad-free app. From cutting a dipole in the field to checking SWR in the shack, every answer shows the formula and assumptions behind it.

ANTENNAS
• Dipole, inverted-V, end-fed half-wave, vertical, J-pole, Yagi, cubical quad, full-wave loop & small magnetic loop
• Lengths in metres, feet or fractional inches, with cut lists and diagrams

RF & FEEDLINE
• VSWR, return loss & mismatch loss
• Coax cable loss and power at the antenna
• Smith chart impedance matching
• dB to power/voltage

ELECTRONICS
• Ohm's law, reactance, LC resonance, voltage divider
• Series / parallel networks
• Resistor, capacitor & SMD codes, AWG wire gauge

LOCATION
• Maidenhead grid square, distance & bearing
• Look up your grid from GPS

REFERENCE
• Q-codes, RST, NATO phonetic alphabet, Morse, band plans

MORE
• Save calculations into projects and share results instantly
• Home-screen widget: your callsign, home grid & UTC clock
• Imperial and metric units throughout

100% offline. No account. No ads. Just the tools.

Free to use the Dipole calculator — unlock every tool with a single one-time PRO purchase. No subscription.

73!

## Rankings

- #2,143,021 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6774462917)