Open Source Android DMR Dual Band Radio
ComJoT CJ - 1
The world’s first Open Source Dual Band Android Amateur Radio!
No need to have an Android Radio with Old, Legacy Operating System
CJ-1 is running Android 14 and has AES256 Encryption
DMR Tier 1 and 2 + FM Analog (136-174MHz, 400-480MHz)
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Price: $999
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Live GPS based Repeater Data
No more codeplugs, click and talk with repeaters from both:
Always Live, Always Up to Date!
Open Source Innovation
The ComJoT CJ-1, celebrated as the pioneering Open Source Android Amateur Radio, combines the reliability of traditional communication with cutting-edge technology. As the first of its kind, this device is an exceptional blend of old and new communication methods.
Equipped with an Android operating system, the CJ-1 offers a familiar and user-friendly interface, making it accessible to the tech-savvy younger generation. Simultaneously, its comprehensive amateur radio capabilities captivate traditional enthusiasts, promoting intergenerational interaction and enthusiasm for amateur radio.
Prepare to redefine the amateur radio experience with the ComJoT CJ-1, where tradition meets modern innovation in a robust and versatile package.
The Open Source Advantage
Unlock Endless Possibilities with the Open Source ComJoT CJ-1: Customize, Collaborate, and Stay Ahead!
Freedom
Make It Your Own - Open source means you can tweak the CJ-1 to fit your exact needs, like adding new features or changing the way it works.
Endless Possibilities
Unlock Your Creativity - You’re not limited to what comes out of the box. With open source, you can create new applications and tools for your radio.
Join a Community
Being open source means you're part of a global community where you can share ideas, solutions, and improvements.
Stay Updated
Continuous Improvements - Open source projects are constantly evolving. You get the benefit of regular updates and improvements made by others.
Cost-Effective
Save Money on Upgrades - With open source, you don’t have to pay for every new feature. You can add and upgrade features yourself, or benefit from others’ contributions for free.
Transparency
Know What’s Inside - You can see exactly how the CJ-1 works and trust that there are no hidden tricks or vulnerabilities.
Learning
Grow Your Skills - Working with open source helps you learn more about how your device works, giving you valuable tech skills.
Flexibility
Adapt to Any Situation - Because you can modify the CJ-1, it can adapt to any situation or need, making it incredibly versatile.
Future-Proof
Ready for What's Next - Open source ensures that your device can keep up with new technology and trends, keeping it relevant and useful longer.
Live Audio Pass Through
One of its standout capabilities is the unique “audio pass through” between the Android subsystem and the radio subsystem.
This critical technical detail allows seamless integration for passing digital modes, packet, APRS data, and more. Whether you’re an Amateur Radio enthusiast or a professional, the CJ-1 sets a new standard in communication, offering unparalleled connectivity and functionality.
One Device that is your:
Mobile Phone
Dual Band Ham Radio
External Speaker Mic
Seamless Integration
The CJ-1 effortlessly integrates with an external speaker mic, allowing users to experience improved audio clarity and ease of use. Whether you’re in a noisy environment or need to keep your hands free, the external speaker mic ensures that your communication is crystal clear and uninterrupted.
Enhanced Audio Quality
By connecting the CJ-1 to an external speaker mic, users benefit from superior audio output. The speaker mic amplifies the sound, making it easier to hear and be heard, even in challenging conditions. This is particularly beneficial for outdoor activities, events, or any situation where background noise can be an issue.
Choose the Rom that fits you best! DeGoogled or Google-Certified
Google Certified for Full Access to Google Play Store and Services!
The CJ-1 being Google Certified means it has passed Google’s strict tests to ensure it meets high standards for performance and security. This certification allows you to access the Google Play Store and use Google services, just like on your smartphone. So, you can download and use your favorite apps, enjoy seamless updates, and benefit from the latest features and security measures that Google offers. In short, it makes the CJ-1 as easy and versatile to use as any Android device you’re already familiar with.
Unleash the Power of the CJ-1: Your Ultimate DeGoogled or Google-Certified Dual-Band Radio!
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Technical Specifications
CJ-1
| BASIC INFO | |
| Model No. | ComJoT CJ-1 |
| Dimension | 148*71*25mm |
| Weight | 360g |
| Operating system | Android 14.0 |
| HARDWARE | |
| Display | 4.0 inch IPS capacitive touch screen, 480*800px |
| CPU | MT6762 Cortex A53 octa core, 2.0GHz; GPU: IMG PowerVR GE8320 650MHz |
| RAM | 4GB RAM |
| ROM | 64GB ROM, support TF card extension up to 256GB maximally |
| Camera | Front camera: 8MP, Rear camera: 13MP AF with flashlight |
| Sensor | Gravity sensor, light sensor, proximity sensor, E-compass |
| Battery | Removable 7.6V/3000mAh lithium cobalt oxide battery |
| Speaker | Φ36/8Ω waterproof speaker |
| NETWORK & CONNECTIVITY | |
| Band | 2G: GSM 850/900/1800/1900MHz |
| 3G: WCDMA 850/900/1700/1900/2100MHz, TD-SCDMA:B34/39 | |
| 4G: FDD-LTE:B1/B2/B3/B4/B5/B7/B8/B12/B17/B20/B66, TDD-LTE:B38/39/40/41; CDMA:BC0 | |
| WIFI | IEEE 802.11 a/b/g/n/ac, support 2.4/5GHz dual-band WiFi |
| BT | V5.0 |
| NFC | Support |
| GNSS | Support GPS/A-GPS/BEIDOU/GLONASS |
| INTERFACES | |
| Micro SIM slot | *2 |
| TF card slot | *1 |
| USB Type-C | *1 |
| M6 Port | *1 |
| OTHER FEATURES | |
| DMR/Analog Radio | TX UHF:420-450MHz and VHF 144-148MHz; (Extended TX/RX available for Mars/Cap Members: 400-480;136-174mhz) RF power: high: 4W, low: 2W; FM Analog and DMR; AES256 Encryption |
| POC Button | Support |
| SOS Button | Support |
| OTG Function | Support |
| Active Noise Cancellation | Support |
| RELIABILITY | |
| Waterproof/Dust-proof | IP68 waterproof |
| Drop-proof | Withstand 1.2m height for 6 sides and 4 corners |
| Temperature range | Operating: '-35℃~+70℃ |
| ACCESSORIES | |
| USB Charger(5V/2A) | *1 Type C 10W 2A quick charger |
| USB Cable | *1 |
| Battery | *1 Standard 3000mah |
| Belt Clip | *1 |
| User Manual | *1 |
| Charging Dock | Optional |