# Radio Field Strength Cal

> Radio Field Strength Cal (iPhone/iPad app by Jonathan Gibbs.)

- Source: https://appshunter.io/ios/app/radio-field-strength-cal/id1254968039 (this page in markdown: same URL + `.md`)
- Developer: [Jonathan Gibbs](https://appshunter.io/developer/1111944472)
- Category: Reference, Productivity
- Price: Free
- Age rating: 17+
- Requires: iOS 16.6 · 5 MB
- Languages: American English
- Released: 2017-07-03
- Data updated: 2026-03-07
- User reviews in markdown: https://appshunter.io/ios/app/radio-field-strength-cal/id1254968039/reviews.md

## What is Radio Field Strength Cal?

Calculate your field strength from your transmitter.


## Version history (last 5 releases)

### 5.4 — 2025-11-05

Bug fixes to Calculations

### 5.3 — 2023-09-02

Bug fix to the calculation

### 5.2 — 2023-09-01

Bug fixes

### 5.1 — 2021-10-26

Bug fixes

### 5 — 2021-10-04

Bug Fixes

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## More apps by Jonathan Gibbs

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- [UK Ham Repeaters](https://appshunter.io/ios/app/uk-ham-repeaters/id1482488113)

All apps by Jonathan Gibbs: https://appshunter.io/developer/1111944472

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-03-07.*