---
title: "Transmission Line Calc — App Overview"
url: https://marlvel.ai/apps/transmission-line-calc
category: Reference
developer: Black Cat Systems
platforms: ios
rating: 4.3 (10 ratings)
pricing: paid
report_level: overview
generated: 2026-04-24
last_verified: "2026-04-24T06:50:22.127Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This is a technical reference tool designed for calculating RF transmission line characteristics and power loss for specific cable types.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Reference |
| Rating | 4.3 ★ (10) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 2.0 |
| Developer | Black Cat Systems |

<!-- SECTION: Summary -->
## What is Transmission Line Calc?

Transmission Line Calc is a specialized RF engineering tool that enables users to perform complex transmission line calculations across 53 pre-defined cable types. It provides precise data on attenuation, electrical length, impedance transformation, and SWR, making it a functional utility for radio frequency analysis.

<!-- SECTION: Key Features -->
## Key Features

- **Cable Database**: Provides access to 53 specific transmission line types, including various Belden and RG-series cables.
- **Impedance and SWR Analysis**: Calculates impedance at both the load and input, while determining SWR for both ends of the transmission line.
- **Loss and Power Calculation**: Computes attenuation, loss due to SWR, and net power output based on user-defined input power and cable specifications.
- **Electrical Length Metrics**: Displays electrical length in both wavelengths and degrees based on the selected frequency and cable velocity factor.

<!-- SECTION: Target Audience -->
## Who is it for?

RF engineers, technicians, and amateur radio operators requiring precise transmission line performance data.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/transmission-line-calc/id302734281?uo=4)
- [Full Intelligence Report](https://marlvel.ai/apps/transmission-line-calc)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/transmission-line-calc).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*