---
id: resources
title: LoRa Antenna Resources
description: Resources for creating coverage maps, RF calculations, and antenna designs for Meshtastic
sidebar_label: Resources
sidebar_position: 4
---

### More antenna information

- [Hackaday's Introduction to Antenna Basics](https://www.youtube.com/playlist?list=PL_tws4AXg7authztKFg5ZN5qWGtq3N_nI)
  - An excellent series of presentations on the basics of antenna design and function, presented by spacecraft radio engineer Karen Rucker.

### Coverage prediction

- [Tower Coverage.com](https://www.towercoverage.com)

  - Commercial, but has free options

- [HeyWhat'sThat](http://www.heywhatsthat.com)

  - Free with path profiling options

- [Radio Mobile Online](https://www.ve2dbe.com/rmonline_s.asp)
  - Radio Mobile Online is a radio wave propagation prediction tool dedicated to amateur radio

### RF Tools

- [Times Microwave Systems](https://www.timesmicrowave.com/calculator/?Product=RG-6&RunLength=10&Frequency=868)

  - Coaxial Cable Attenuation & Power Handling Calculator

- [Solwise Link Budget Calculator](https://www.solwise.co.uk/link-budget.htm)

  - Predict the received signal strength

- [Amateur Radio Toolkit](https://play.google.com/store/apps/details?id=com.daveyhollenberg.amateurradiotoolkit)
  - Android app with lots of antenna information

### Antenna designs

- [1/4 Wave Ground Plane Antenna Calculator](https://m0ukd.com/calculators/quarter-wave-ground-plane-antenna-calculator)

- [Quadrifilar helicoidal antenna calculator](https://jcoppens.com/ant/qfh/calc.en.php)

- [Building an 868/915 MHz co-linear antenna tutorial](https://www.youtube.com/watch?v=1_1LxuOngHs)

  - [868 MHz antenna schematic PDF](https://github.com/IRNAS/ttn-irnas-gw/blob/master/Collinear868MHzLoRaantenna.PDF)
  - [915 MHz antenna schematic PDF](https://github.com/IRNAS/ttn-irnas-gw/blob/master/CollinearLoRaantenna915MHzIRNAS.PDF)

- [NEC based antenna modeler and optimizer](https://www.qsl.net/4nec2)
