MHz2.0.1 - App Store

MHz - wireless frequency coordination that travels with you.

Whether you're mixing monitors on a world tour or setting up two handhelds in a school hall, MHz helps you find clean, legal frequencies for wireless microphones and in-ear monitors - anywhere, even offline.

Find clean spectrum, anywhere
Location-aware lookups show you which TV channels and white spaces are actually free where you're standing. In the United States, United Kingdom, Canada, and Australia, the full transmitter database is bundled into the app - no signal required. In Denmark, Sweden, Norway, and Finland, MHz queries the national regulators' own live frequency services for the most current picture, and regulation summaries for 40+ more countries are always available offline.

Talk to your gear.
Link MHz directly to Shure and Sennheiser hardware on your network. See live RF and battery status, push frequencies to your receivers, or pull their settings into your show file - per channel or a whole group at once.

Collaborate with your crew.
Share frequency groups with other MHz users via iCloud. Everyone sees the same plan, updates arrive with push notifications, and nobody's working from an outdated spreadsheet.

Import and export freely.
Bring in coordination files from Wireless Workbench and Soundbase, merge them into your groups, and export frequency ranges back out. MHz plays nicely with the tools you already use.

Actually understand RF.
The built-in Intermod Tool teaches you intermodulation from first principles - interactive chapters plus a playground where you drag transmitters around a virtual stage and watch the spectrum react. Great for students, ATDs, and anyone who's ever asked "why does channel 3 drop out when channel 5 keys up?"

No accounts, no subscriptions to your own data - your coordination lives in your iCloud.

Version History Fixed a connection issue with PSM1000
You now have the option specify which network card to use when connecting to devices 2.0.1 Aug 6 Learn intermodulation — and get more countries, more gear, more export options.

• New: Intermod Tool — an interactive guide to intermodulation, the hidden cause of wireless dropouts. Eight hands-on chapters take you from "what is IMD?" to reading a real RF spectrum, then let you loose in a free-form Playground with spectrum and stage views, IEM roles, and antenna diversity.
• Australia, United States, United Kingdom & Canada added — complete local TV transmitter data is bundled in the app, so location checks in these countries work fully offline, even deep in a venue with no signal.
• Sennheiser support — link Sennheiser receivers alongside your Shure gear and keep frequencies in sync between MHz and your racks.
• Range export — export any frequency range straight from the app for use in your other coordination tools.
• Clearer imports — imported channels now flash into view, so you can see exactly what arrived.

Plus smaller download size and general polish. Break a leg out there. 2.0 Aug 3 Minor changes and updates 1.5.2 12/18/2024 An error that caused the wrong frequency list to be displayed when searching in Denmark, has been resolved.

Minor corrections and updates. 1.5.1 05/24/2024 You're now able to add your own groups and add as many members as you like. This will hopefully make it easier for you to track the frequencies you're using. 1.5 04/02/2024 1.4.2 includes minor performance enhancements and improvements. 1.4.2 02/14/2024 An issue with loading data has been resolved. 1.4.1 12/06/2023 Version 1.4 brings major changes to the underlying code of MHz.

More changes and additions are coming in the near future. 1.4 12/04/2023 Norway added.
USA has been removed temporarily. We'll get it back as soon as possible.
Design changes to make it more up to date. 1.2 06/02/2021 Minor bugfixes and stability improvements 1.1.1 03/04/2018 Features:
Spain and Greece have been added to the list.
When searching for "white-space" frequencies, you can now directly see if a license is required for that frequency or if the frequency is about to expire (Which happens quite a lot these days).

Fixes:
We fixed a bug that caused the delete button in the search history to be unresponsive.
Also some minor corrections to the way frequencies from USA where handled. Now it shows the correct frequencies. 1.1 03/01/2018 1.0 02/08/2018