Keyhole Radio

Keyhole Radio


(2 stars)


Download for Android

100,000 - 500,000 downloads

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Radio Engineering software for RF Engineers on the go.
See where your radio or repeater can communicate to with the Android app from

NOTE: This app requires internet access, RF Engineering experience and a valid email address to register a account.

TO USE: Pan the map to zoom to your transmit site then press your menu or keypad center buttons to access the 'calculate' form. Enter your device's parameters and click the big orange button to create your coverage. Settings and help are available in the app's menu.

Full user manual available in app menu or at


* Internet connection - to communicate with server.
* GPS - to locate your position for mobile users (opt in)

Supported systems:

* Wifi, 802.11 (2.4 / 5.8GHz), TETRA, PMR, LMR, VHF, UHF, SHF, PTT, GSM, 2G/3G/LTE, DAB, DVB


Tags: rf signal trial, rf, cloudrf, rf signal lite, rf receiver, calculate coverage area for rf, rf signal pro apk, communication rf to, rf signal, caracteristicas de la señal de radiofrecuencia.

Recently changed in this version

2.3 - Updated rainbow colour schema, Fixed template save/load to work with new API, Added 7 propagation models (ITM, Okumura, Hata, FSPL)

2.2 - Powered by faster server (, Precise EPSG 3857 projection, Integration with new email+PIN account system at

EXISTING USERS PLEASE NOTE: The accounts system has changed to a Email+PIN model. You can reset your password and receive your PIN by purchasing a free/paid plan at

Comments and ratings for Keyhole Radio
  • (38 stars)

    by Rod Gross on 24/09/2014

    Works well

  • (38 stars)

    by Kevin Oleniczak on 30/08/2014

    On droid Max 4.1. It shows location but no raster.

  • (38 stars)

    by kevin ohara on 13/12/2013

    FEKIN$#!t !!!

  • (38 stars)

    by Richard Stratford on 26/10/2013

    I just installed the free version - I see this latest version can cover a radius of 50km - that makes this App much more useful to evaluate. I was also concerned whether the terrain database would cover my area (Johannesburg, South Africa) but see that the plot is very similar to other radio terrain programs - great !! Going to play some more and will probably purchase the Pro version soon ....

  • (38 stars)

    by Tyler Bailey on 09/08/2013

    I can see every bit of the WORLD love it but I do sadly have a complaintment about 1 thing hope his helps you :) there has to be an exit button I'm not to dissupointed about this but pls ad a exit button thank you for your time :) Your Sinserly - Tyler Dylan Bailey thank you.

  • (38 stars)

    by Ayang Ayang on 24/07/2013

    Actually i didnt know what does this software for...or maybe its for advance user of ham radio

  • (38 stars)

    by Kiril Georgiev on 21/06/2013


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