---
id: resources
title: Antenna resources
sidebar_label: Resources
slug: /hardware/resources
---

### 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/)
