OPEN BOX - USED
The ComJot CJ-1, dubbed as the first Open-Source Android Amateur Radio, is a feature-packed device that marries traditional communication methods with modern technology.
Open-Source Advantage
Being open source, the ComJot CJ-1 encourages innovation and customization, allowing users to adapt the device to their specific needs and preferences.
Model and System
Operating System: The CJ-1 runs on Android OS, ensuring a familiar and customizable user interface.
Processor: Powered by an octa-core MT6762 CPU clocked at 2GHz, providing a robust platform for both communication and application needs.
Bands: Incorporates both analog and digital mobile radio (DMR) with VHF (136-174mHz) and UHF (400-470mHz) bands, making it a versatile tool for amateur radio enthusiasts.
Encryption: Built-in AES encryption ensures that when you want your conversation to be private, it stays private.
Connectivity
Network Support: Supports a wide range of GSM, WCDMA, TDSCDMA, CDMA, FDD, TDD, and GPRS bands, along with VoLTE capabilities, ensuring global usability.
Additional Connectivity: Enhanced with NFC, OTG, Bluetooth 5.0 BLE, and USB Type-C 2.0, catering to various modern peripherals and accessories.
WiFi: Boasts dual-band WiFi, supporting both 2.4GHz and 5.8GHz for faster and more reliable wireless connectivity.
Screen and Camera
Display: A 4-inch IPS display with a resolution of 480x800 provides clear visibility for outdoor use.
Camera: Features a 1.3MP autofocus rear camera and an 800,000-pixel front camera with fixed focus.
Storage and Body
Storage: With 64GB ROM and 4GB RAM, it offers ample storage and smooth multitasking.
Build: Substantial in build, with a hefty weight of 371.5g and rugged dimensions tailored for durability and ease of handling in field conditions.
Battery and Charging
Battery: A powerful 7.6V/3000mAh removable battery promises long-lasting use, and it's user-replaceable – a rare feature in modern devices.
Charging: Convenient via a Type-C connector, with an optional desk charger offering an alternative charging solution.
Durability
IP68 Rating: Built tough, with an IP68 rating, signifying complete protection against dust and the ability to withstand long periods of immersion in water.
Additional Features
Sensors: Equipped with a suite of sensors, including AI noise reduction, gravity, light sensitivity, and a distance sensor, enhancing its utility in various environments.
Audio: Inclusion of a double microphone and a waterproof speaker ensures clear communication in adverse conditions.
Conclusion
The ComJot CJ-1 stands out as a robust and versatile device that bridges the gap between amateur radio and smart device functionality. Its blend of traditional radio features with the capabilities of a modern smartphone makes it an intriguing option for amateur radio aficionados, outdoor adventurers, and professionals who require a rugged, reliable communication device in the field.
