2021-05-09 06:51:23 -07:00
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---
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id: resources
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title: Antenna resources
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sidebar_label: Resources
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slug: /hardware/resources
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---
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### Coverage prediction
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* [Tower Coverage.com](https://www.towercoverage.com/)
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* Commercial but has free options
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* [HeyWhat'sThat](http://www.heywhatsthat.com/)
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* Free with path profiling options
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* [Radio Mobile Online](https://www.ve2dbe.com/rmonline_s.asp)
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* Radio Mobile Online is a radio wave propagation prediction tool dedicated to amateur radio
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### RF Tools
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* [Times Microwave Systems](https://www.timesmicrowave.com/calculator/?Product=RG-6&RunLength=10&Frequency=868)
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* Coaxial Cable Attenuation & Power Handling Calculator
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* [Solwise Link Budget Calculator](https://www.solwise.co.uk/link-budget.htm)
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* Predict the received signal strength
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2021-05-15 11:36:15 -07:00
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2021-05-09 07:03:35 -07:00
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* [Amateur Radio Toolkit](https://play.google.com/store/apps/details?id=com.daveyhollenberg.amateurradiotoolkit)
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* Android app with lots of antenna information
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2021-05-09 06:51:23 -07:00
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2021-05-15 11:36:15 -07:00
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2021-05-09 06:51:23 -07:00
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### Antenna designs
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* [1/4 Wave Ground Plane Antenna Calculator](https://m0ukd.com/calculators/quarter-wave-ground-plane-antenna-calculator/)
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* [Quadrifilar helicoidal antenna calculator](https://jcoppens.com/ant/qfh/calc.en.php)
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* [Building an 868/915 MHz co-linear antenna tutorial](https://www.youtube.com/watch?v=1_1LxuOngHs)
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* [868 Mhz antenna schematic PDF](https://github.com/IRNAS/ttn-irnas-gw/blob/master/Collinear868MHzLoRaantenna.PDF)
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* [915 Mhz antenna schematic PDF](https://github.com/IRNAS/ttn-irnas-gw/blob/master/CollinearLoRaantenna915MHzIRNAS.PDF)
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* [NEC based antenna modeler and optimizer](https://www.qsl.net/4nec2/)
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