Signal GH is a tool for users of the HDHomerun networked digital TV tuner who want to monitor and improve their Over The Air (OTA) reception quality. It graphs the signal quality from multiple channels simultaneously, allowing the user to more rapidly adjust and upgrade the OTA receiving hardware for his home, i.e., cables, connections, splitters, pre-amps, and antennas. The graph can be mirrored to a TV via Airplay and an AppleTV.

United States users also have the benefit of a map of digital television broadcasting towers. Depends on the accuracy of your device's compass.

If you don't have an HDHomerun, you don't need this product. If you do have an HDHomerun, and use it for over the air reception, you will likely find it useful.

If the automatic scan does not find a station you expect, add the station's real channel to the list of active channels via the Channels subview of the Settings tab.

Signal GH does not support QAM (digital cable) Please make sure your HDHomerun is set to use a broadcasting channel set and not a cable channel set.

You cannot use this software to watch video on your iOS device. This is a diagnostic tool.

What’s New

Version 2.2.3

• Added reminders of ongoing repack of broadcast channels in the USA.
• Tapping on the tower detail view was not opening it as expected.
• Updated map database.
• Cleaned up table layouts.
• Sped up rate of checking the device status.

Ratings and Reviews

4.7 out of 5
30 Ratings

30 Ratings

Doidois ,


Si vous avez un HDHOMERUN avec une antenne, cette application permet de voir en temps réel le signal sur 2 postes de votre choix. Ça permet de tester tous les angles possible de l'antenne, le câblage et les splitters.

L'application permet aussi de pointer l'antenne dans la bonne direction avec une carte des tours (ça marche à Montréal, à l'exception de Télé Québec). ,

Awesome :-)

Let's you position your antenna to get all the local OTA channels. Because of this app I was able to make my own tiny antenna and still receive all the channels. Thanks you very much developers :-)

Lev13than ,

Exactly what it says

Perfect for aiming antenna between multiple towers - worth the money in time saved!


Generally Helpful Software
14.2 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch. Apple TV.



Age Rating
Rated 4+
© 2008-2019 Generally Helpful Software


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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