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prod cod: PTT-Mesh-Radio
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PTT Mesh Radio represents the evolution of radio communications in critical environments. This cutting-edge technology offers a highly reliable, flexible, and robust communication network that adapts to the needs of the most challenging situations.
PTT Mesh Radio, or Push-to-Talk Mesh Radio, is a wireless communication device that establishes connections with other similar devices using an ad hoc network. Its operation can be explained as follows:
Ad Hoc Connection: PTT Mesh Radio devices connect directly to each other, creating a temporary (ad hoc) network without the need for external infrastructure like towers or base stations.
Push-to-Talk Communication: To communicate, the user presses a Push-to-Talk button on the device. This opens the communication channel to transmit voice or data.
Automatic Routing: Messages are sent through the mesh network using the most efficient available route. Devices act as routers, sending data from one device to another until it reaches its destination.
Reliability: The mesh network is highly reliable because if one path is blocked or a device is out of range, data can be routed through an alternative path.
Encryption: Communications are encrypted with DES / AES 128 / AES 256 to ensure privacy and security.
For tactical response teams, smooth and reliable communication is essential. Typically, these Tactical Units rely on their LMR/DMR radios (e.g., Motorola, Harris) and cell phones with dedicated apps and PTToC (Push-to-Talk over Cellular) to ensure mission success.
But what happens when communications fail? During major incidents, cellular networks can become overloaded, and nearby cell towers may not be operational. Even more complex situations arise when teams have to operate in underground environments such as tunnels or hotel underground parking lots, where cellular coverage is absent.
Furthermore, significant challenges emerge when teams need to intervene in mountainous or remote coastal areas where there is no coverage from both cellular networks and DMR/LMR radios. In these contexts, maintaining operational communications becomes a crucial obstacle to overcome.
Consider a scenario where a rescuer is in a tunnel extending four miles, devoid of any cellular reception. They could capture a video of an injured individual or photograph a questionable item and expediently transmit this to the command hub (C2) for guidance and directives. Upon obtaining this information in real-time, the command can swiftly react and issue suitable commands.
Envision a surveillance team tasked with the continuous tracking of a subject. Should the individual venture into a zone like the B3 level of a hotel's subterranean parking, void of cellular reception and beyond the reach of DMR radios, the IP Mesh network becomes essential. No matter how deep the subject descends, the IP Mesh network's capability persists. In the event an agent loses touch with their team, another equipped with an IP Mesh radio can step in, serving as a conduit for communication, thereby ensuring uninterrupted live video feed to the command center stationed above, just outside the hotel. This critical surveillance activity is conducted with subtlety, enabled by the team's portable, low-emission IP Mesh radios, designed for stealth and easy concealment.
Imagine a scenario where data requires confirmation from headquarters, or a paramedic must seek advice from a hospital doctor. In such instances, how does an IP Mesh radio user establish a connection to the primary network from challenging locations like deep tunnels or the lower levels of hotel parking structures?
It's quite simple: if at least one IP Mesh radio within the network has access to the main network, this access becomes available to all users in the IP Mesh network. Typically, an IP Mesh radio located in a command center (C2), whether on a vehicle or at a fixed point, is connected to a cellular modem, such as a A Cradlepoint modem is a device used to obtain the Internet, often used in businesses and critical situations. It utilizes various connection sources (cellular, fiber, etc.) and distributes it via Wi-Fi or Ethernet. Cradlepoint modem, which provides cellular connectivity. Similarly, a satellite terminal connected to an IP Mesh radio allows all radios in the network to access the main network through IP Mesh connectivity to the BGAN/VGAN terminal or SATCOM OTM (On The Move).
As mentioned earlier, operators can use their mobile devices within the IP Mesh network. But how do these devices connect to the IP Mesh network? Each IP Mesh PTT radio is equipped with a built-in Wi-Fi access point (hotspot), as well as a Bluetooth access point and a GPS receiver to locate users at all times, provided they have a direct line of sight to the sky for GPS signal. Operators simply connect via Wi-Fi (or Bluetooth) to the SSID broadcast by the IP Mesh radio to continue using the functions of their mobile devices that do not require server connectivity. For example, in the absence of a cellular network, you can use apps like FaceTime for video calls, while apps that require access to the server, such as WhatsApp, will not be functional.
Each IP Mesh radio is equipped with a GPS receiver for outdoor location. How do we ensure the safety of team members, like a squad of six officers, who are navigating the complex layers of an underground environment, such as tunnels or hotel parking lots, where GPS signals fail to penetrate? How do we accurately track their positions to maintain safety when GPS is unavailable?
Three-dimensional tracking, on X, Y, and Z axes, has been a priority for tactical response teams over the last 25 years. Various solutions have been explored, from building maps linked to fixed sensors to beacons placed in key areas of an incident. However, these solutions have always encountered a significant obstacle: the lack of a network capable of transmitting data collected by sensors to command software for real-time position processing.
The solution can be found in utilizing our PTT Mesh IP Mesh network, functioning as a communication layer for an indoor tracking system, delivering highly accurate location information. Envision a tracking system that simply necessitates a compact wearable sensor, linked through Wi-Fi to our PTT Mesh radios.
This system is currently operational, delivering real-time indoor tracking capabilities along the X, Y, and Z axes. Users can effectively monitor personnel movements and access precise location data at any given moment. This functionality grants the command center a persistent and unobstructed perspective on the team's positions, thereby ensuring optimal safety and control.
The system can implement wearable sensors to alert the central command of environmental hazards, such as the presence of toxic gases or hazardous substances. These sensors also monitor biometric parameters, such as stress variations, heart rate, and body temperature, and help communicate real-time alerts to the operator. Additionally, the system can include a "man down" sensor that detects falls, even if injuries are not immediately evident.
If the man down alarm goes unanswered for a predefined period, for example, 30 seconds, it indicates that the operator may be in danger. In such cases, a rapid response team can be dispatched, knowing the operator's exact location thanks to the indoor tracking system.
This sensor system relies on an always-active cellular connection to process and transmit data and alarms. But what happens when the operator is in an area with no cellular coverage, such as an underground tunnel? In these situations, PTT Mesh radios step in to ensure the necessary connectivity for the sensor's operation.
The "Seek & Avoid" function is an advanced feature found in many radio communication devices, especially in mesh network devices or tactical communication networks. This function allows the user to select specific frequency bands or frequency ranges to be avoided during radio network operations.
Here's how it works in detail:
1. Selection of Frequencies for the "Black List": The user can choose specific frequency bands or frequency ranges to include in the "Black List." This list represents frequencies that must be avoided at all costs during radio network operations.
2. SMART Mode: The "Seek & Avoid" function often works in conjunction with SMART (Spectrum Management and Radio Technology) mode. SMART mode is designed to allow the radio device to automatically seek a free or less congested frequency within the radio spectrum.
The significant advantage of SMART and E-SMART mode is that the disruptor or jammer believes they have succeeded because the attacked radio seems to remain on the same initial frequency. However, in reality, the radio
being disrupted continues to communicate effectively without the disruptor's knowledge. This means the disruption attempt fails to interrupt communication.
3. Avoiding Interference or Congestion: When the radio network operates in SMART mode and needs to switch frequencies (e.g., due to interference or high noise levels on a frequency), the "Seek & Avoid" function comes into play. This function ensures that the radio device does not switch to a frequency listed in the Black List.
4. Protection of Sensitive Frequencies: The primary utility of the "Seek & Avoid" function is to protect specific frequencies that may be used for sensitive or critical applications. For instance, there may be frequencies used for government, military, or emergency communications that must not be disturbed or congested.
5. Customization of Frequency Bands: Users can customize the "Black List" according to their specific needs. This allows precise control over the frequencies to be avoided.
In essence, the "Seek & Avoid" function is a spectrum management feature that ensures the radio device automatically avoids user-selected frequencies deemed sensitive or prone to interference. This helps maintain the quality of radio communications and preserve the integrity of cryptographic or sensitive frequencies within a radio network.
The availability of "S-Band" radios refers to a specific segment of the radio frequency spectrum that falls within the microwave range. The S-Band typically covers frequencies from 2 to 4 GHz. This band is used for various applications, including satellite communication, radar, and some types of wireless communications.
In specific contexts such as military or certain industrial communications, the use of the S-Band can offer several advantages:
1. Better Penetration: Frequencies in this band can penetrate obstacles like foliage or small buildings better, making them useful in urban environments or dense vegetation.
2. Signal Stability: The S-Band tends to be less susceptible to interference compared to higher frequency bands, thus offering more stable and reliable communications.
3. Coverage and Range: S-Band frequencies can offer a good balance of transmission range and coverage, which is important for applications requiring a trade-off between transmission distance and the ability to overcome physical obstacles.
All of this may sound like futuristic technology developed for the kind of program The "Future First Responder" program is an initiative aimed at developing and implementing advanced and innovative technologies to enhance the capabilities and safety of first responders and emergency response teams in complex scenarios and crisis situations. This program aims to utilize cutting-edge technological solutions, such as drones, wearable devices, artificial intelligence, and advanced connectivity, to improve the response capacity and safety of rescue teams. Future First Responder . But it's not. These solutions are all available NOW... from Endoaustica Europe.
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