The 1815 MHz band ranges from 1780~1850 MHz. Operations in the 1780-1850 MHz band consist of military tactical radio relay, tracking, telemetry, and control data communications. Federal agencies also use this band for law enforcement, video surveillance, robotics, fixed point-to-point microwave relay communications and unmanned aerial systems.
This band’s transmission characteristics make it desirable to achieve a good balance of range and penetration for mobile ground-based robots. The RF signals at 1815 MHz have the ability to propagate further distances via two mechanisms: penetration and diffraction. Penetration refers to 1815 MHz waves ability to penetrate through building walls, vegetation and other obstacles. 1815 MHz waves can go through multiple building walls making it an excellent choice for applications that do not have a direct line of sight between sender and receiver. Diffraction describes the characteristic of a 1815 MHz wave that it can go around an object such as a building or vegetation. 1815 MHz waves have smaller Fresnel zone.
The Smart Radios in Xtreme category can meet various stringent Federal project requirements. The table below provides quick overview of their technical specifications. Refer to the detailed datasheet for more details.
|Ordering Code||RM-1815-2H-XS (2x Ethernet, UART) RM-1815-2H-XU (2x Ethernet, USB)|
|Evaluation Kit||EK-1815-SR (Antennas, Cables and I/O ports to facilitate quick bench testing)|
|Radio Configuration||2×2 MIMO|
|Frequency Range||1780-1850 MHz|
|Channel Bandwidths (Software Select-able)||3, 5, 10, 20 MHz|
|Max Data Throughput (UDP)||100 Mbps|
|Max Operating Range (Indicative)||>20 Km|
|Wireless Data Encryption||128-bit AES hardware data encryption 256-bit AES software data encryption channel for sensitive data|
|Operating Modes||Mesh, AP, Client, Transparent Bridge and Gateway|
|Command & Control channel||Ultra-Reliable Low Latency Channel (URLLC) for Command and Control data. Latency 30 ms (Typical)|
|Video Channel||Optimized 4k video streaming channel|
|Mesh Automatic Transmit Power Control (M-ATPC)||Intelligently adjusts the transmit output power based on signal strength. Allows the Smart Radios to be utilized in a widely dispersed and dynamic mesh.|
|Operating Voltage||5.5~42V DC|
|Dimensions||65 x 57 x 11 mm, 60 grams|
|Temperature range (Operating)||-40°C to +85°C|
|Special Features||– Extended lifespan with 7 years’ planned availability – Extreme Reliability, IPC Class 2 standard with Class 3 options – Compliant to MIL-STD-202G for high shock/vibration environments|