# RF Slide Rule

> RF Slide Rule (iPhone/iPad app by CEC, S.A..)

- Source: https://appshunter.io/ios/app/rf-slide-rule/id448166676 (this page in markdown: same URL + `.md`)
- Developer: [CEC, S.A.](https://appshunter.io/developer/537230070)
- Category: Utilities, Business
- Price: Free
- Age rating: 4+
- Requires: iOS 7.0 · 1 MB
- Languages: American English
- Released: 2011-07-12
- Data updated: 2026-05-15
- User reviews in markdown: https://appshunter.io/ios/app/rf-slide-rule/id448166676/reviews.md

## What is RF Slide Rule?

A simple RF Tool to calculate:
- Free Space loss
- RSSI
- Pathloss
- EIRP

for a given RF link taking as inputs:

- Frequency (GHz)
- Distance (km or mi)
- Tx and Rx Antenna gains
- Rx Sensitivity
- Tx Power

This App should be periodically updated to incorporate additional useful RF and Telecom engineering formulas.


## Version history (last 4 releases)

### 1.3 — 2015-08-13

This app has been updated by Apple to display the Apple Watch app icon.

Bug Fixes

### 1.2 — 2015-08-06

Universal binary with updated interface

### Version 1.01 — 2011-07-18

Compatibility with iPhone 3G and Verizon iPhone 
iOS 4.2

### 1.0 — 2011-07-12

No release notes.

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [EasyTracking Client](https://appshunter.io/ios/app/easytracking-client/id1435040157) | — | Free | Utilities |
| [RF Tools ++](https://appshunter.io/ios/app/rf-tools-plus-plus/id1548209609) | — | $1.99 | Utilities |
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| [Operational Amplifiers Guide](https://appshunter.io/ios/app/operational-amplifiers-guide/id6467499897) | — | Free | Utilities |
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## More apps by CEC, S.A.

- [cFloat](https://appshunter.io/ios/app/cfloat/id1050957669)
- [cPost](https://appshunter.io/ios/app/cpost/id1181563057)
- [cEaster](https://appshunter.io/ios/app/ceaster/id1228536538)
- [cSummer](https://appshunter.io/ios/app/csummer/id1249402553)
- [uSens](https://appshunter.io/ios/app/usens/id1425792243)

All apps by CEC, S.A.: https://appshunter.io/developer/537230070

## Related topics

[rf slide rule](https://appshunter.io/ios/topics/rf-slide-rule) · [islipstick rf](https://appshunter.io/ios/topics/islipstick-rf)

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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 2026-05-15.*