This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.
OpenMHz
Stay informed with raw, unedited emergency transmissions from over 225 cities. Experience the power of SDR-captured audio with a full 30-day archive, 100% ad-free.
Downloads
196K+User Rating
Total Ratings
100Publisher
Category
NewsLocales
1Latest Version
1.1.1Size
1.1 MBFirst Released
Sep 18, 2023Unfiltered Situational Awareness
Access raw police and fire transmissions exactly as they happen. No ads, no interruptions—just the truth from over 225 radio systems across the country.
Complete System Coverage
Unlike traditional scanners that skip between calls, our Software Defined Radio technology captures every transmission simultaneously so you never miss a moment.
30-Day Digital Archive
Missed the action? Scroll back in time to review any incident from the past month. Perfect for local researchers, journalists, and community monitors.
Frequently Asked Questions
Everything you need to know about OpenMHz
What is OpenMHz?
OpenMHz enables live listening to Police and Fire radios across the US. It is ad-free, requires no in-app purchases, and features a 30-day archive of individual transmissions recorded via Software Defined Radio.
Does OpenMHz include advertisements or in-app purchases?
No, OpenMHz does not include advertisements or require in-app purchases. Users access all features without additional costs or interruptions.
How does OpenMHz differ from traditional radio scanners?
OpenMHz utilizes Software Defined Radio to capture all channels and save each transmission individually. This method differs from traditional scanners that may miss concurrent broadcasts.
Can I access past police and fire transmissions with OpenMHz?
Yes, OpenMHz provides a 30-day archive of transmissions. Users can scroll back in time to listen to recorded police and fire radio communications from the past month.
How many police and fire radio systems are available on OpenMHz?
OpenMHz provides access to over 225 city, county, and state radio systems. This includes various police, fire, and emergency medical services (EMS) communications across the US.
What geographic areas does OpenMHz cover?
OpenMHz covers police and fire radio systems across the US. It offers access to over 225 city, county, and state systems, providing broad national coverage.
How do users customize channel selection within OpenMHz?
OpenMHz allows users to customize channel selection by checking boxes next to desired channels within a system. This enables focused listening on specific emergency services broadcasts.
The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.
App Store
Screenshots
List of emergency radio systems available in the OpenMHz app
OpenMHz app interface showing a list of recorded DC Fire and EMS radio transmissions with timestamps and call durations
A list of selectable emergency radio channels in the OpenMHz app including EMS and DC Task Force
Description
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This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.