Long-distance, wide-coverage border and coastal defense communication scenarios such as border patrol, coastal defense surveillance, border port control, coastline alerting, border post interconnection and maritime law-enforcement ship formation communication. Our country's borderlines and coastlines are long with complex and diverse terrain including mountains, deserts, jungles and islands. Traditional public networks cannot fully cover them, making dedicated broadband communication a necessity for border and coastal defense command and dispatch.

Deployment Scheme

• Multi-hop cascade deployment: YNW-7520A-BCJ backpack/vehicle/base-station radios are cascade-deployed along the borderline or coastline, with an air-to-air line-of-sight transmission distance of 200+km; multi-hop relay builds a centerless broadband private network covering tens to hundreds of kilometers.
• Diverse node forms: fixed deployment at border posts, shipboard deployment on patrol boats, vehicle deployment on mobile command vehicles and manpack deployment on soldiers freely self-organize, combined with backpack/vehicle radios for hybrid clustered, hierarchical networking, realizing integrated "shore-sea-air" coverage.
• High-power long-distance: maximum 43dBm (2*10W) transmit power, combined with COFDM and transmit/receive diversity technology, achieves more stable long-distance transmission in wide-area border and coastal scenarios.

Application Value

Border posts, patrol boats and mobile command vehicles can return high-definition video, voice intercom and situational-awareness data in real time, keeping command links open even in remote areas without public-network coverage. The command center can grasp border dynamics and maritime situations in real time, effectively enhancing situational-awareness, rapid-response and coordinated-combat capability, providing reliable communication support for border and coastal defense control.

Mobility scenarios such as convoy formation movement, military escort and transportation, material transport, VIP convoy security, long-distance passenger fleet management, logistics fleet collaboration and railway engineering vehicle group communication. During movement, the distances between vehicles change constantly and road conditions are complex; traditional communication methods cannot guarantee stable real-time communication between vehicles in a convoy.

Deployment Scheme

• Direct vehicle-to-vehicle networking: each vehicle deploys a YNW-7520A-BCJ vehicle radio, and MESH links are automatically established between vehicles, with no dependence on fixed base stations or public networks.
• Dynamic route convergence: under complex conditions such as high-speed movement, changing inter-vehicle distance, road obstruction and tunnel passage, the network topology automatically reconfigures and routes converge within seconds (route switching below 1s) without communication interruption.
• Concurrent multi-service: supports concurrent transmission of vehicle high-definition video backhaul, voice intercom (IP voice conference / PTT intercom), vehicle position sharing and command-issuing, with a peak rate of 50+Mbps@20MHz meeting broadband service requirements.
• Relay expansion: when the convoy is large or terrain obstruction is severe, multi-hop relay expands coverage; video up to 8+ hops, and a single frequency supports Ad-Hoc networks of up to 64 nodes.

Application Value

During convoy mobility, high-definition video, voice intercom and position information are shared in real time among vehicles, and the command vehicle can grasp the whole fleet situation, supporting integrated formation command and coordinated dispatch. In missions such as anti-terrorism stability maintenance, armed escort and military material transport, it provides the convoy with a dedicated secure communication channel independent of public networks, significantly enhancing fleet mobility-command capability and mission-execution safety.

Maritime task scenarios such as naval boarding inspection, reconnaissance and evidence collection, cross-ship coordinated operations, ship formation communication, maritime law-enforcement boarding, coast guard patrol and naval tactical coordination. The maritime communication environment is special, facing challenges such as wave fluctuation, severe multipath interference and constantly changing relative positions between ships; traditional communication methods cannot provide stable support.

Deployment Scheme

• Ship-to-ship coordinated networking: multiple ships each deploy a YNW-7520A-BCJ radio, and broadband MESH links are automatically established between ships, supporting ship formation coordinated operations and comprehensive communication.
• Boarding-team extension: boarding inspection teams are equipped with backpack MESH devices that remain in constant communication with the mothership radio, returning high-definition video and voice from the boarding scene in real time to the mothership command center.
• Anti-multipath interference: COFDM modulation effectively suppresses multipath reflection interference over the sea surface, keeping the link stable under highly dynamic conditions such as wave fluctuation and ship pitching.
• Fast route convergence: the device supports fast route convergence in highly dynamic environments and 1000+km/h high-speed mobility; when relative positions between ships change, the network topology automatically adjusts without communication interruption.

Application Value

In tasks such as naval boarding inspection, reconnaissance and evidence collection and cross-ship coordination, stable maritime broadband Ad-Hoc links are established between ships and between ships and boarding teams, returning scene high-definition video and voice in real time to provide reliable communication support for maritime law enforcement, search and rescue and tactical coordination. Commanders can grasp the boarding situation in real time and make remote command decisions, significantly improving maritime law-enforcement safety and tactical-coordination efficiency.

Public safety scenarios such as major-event security (meetings, competitions, performances), temporary control and arrest, armed patrol, anti-terrorism emergency response, group-event handling, VIP protection, checkpoint inspection and special operations. These scenarios place extremely high demands on fast deployment, temporary private networks, multi-channel video backhaul and resilience to public-network congestion.

Deployment Scheme

• Rapid temporary private network: YNW-7520A-BCJ can temporarily, dynamically and rapidly build a wireless IP MESH network, setting up a dedicated broadband network at the mission site without configuration and fully independent of public networks.
• Multi-terminal converged access: individual-soldier law-enforcement recorders, vehicle terminals, temporary surveillance cameras and UAV aerial relays access uniformly through the MESH Ad-Hoc network; IP terminals such as smartphones, tablets and PCs can access via Ethernet or WiFi AP, with multi-channel video returned to the command center in real time.
• Centerless architecture: the centerless Ad-Hoc architecture does not rely on public-network base stations; the failure of individual terminals does not affect normal network operation, keeping communication unblocked in emergencies such as network congestion or public-network outage (e.g., public-network congestion caused by large-event crowds).
• Intelligent anti-interference: adaptive frequency selection supports up to 16 candidate frequencies, automatically switching to an interference-free frequency to ensure transmission reliability.
• Secure encryption: supports DES/AES128/AES256 channel transmission encryption to ensure the security of public-security private-network information.

Application Value

In public safety scenarios such as major-event security, temporary control and armed patrol, it provides real-time on-site situational awareness for public-security command decisions, with stable backhaul of multi-channel high-definition video, voice intercom and data. The centerless architecture ensures uninterrupted communication under extreme conditions such as public-network outage and network congestion, providing reliable communication support for anti-terrorism emergency response and emergency command, and enhancing public-security rapid-response and coordinated-combat capability.

Communication support at disaster sites such as firefighting (building, forest and chemical fires), earthquake rescue, accident emergency response, hazardous-chemical leakage, traffic-accident rescue and building-collapse rescue. At disaster sites, public-network communication is often interrupted or severely congested, making dedicated communication essential for rescue command.

Deployment Scheme

• Rapid on-site deployment: YNW-7520A-BCJ can be rapidly set up at the disaster site to quickly build a dedicated broadband Ad-Hoc network among firefighters, command vehicles and temporary command posts, without requiring any infrastructure support.
• Three-level soldier-vehicle-command networking: firefighters wear backpack MESH devices and go deep into the fire scene; through vehicle/base-station radio relay, in-fire-scene high-definition video is returned in real time to the on-site command vehicle and rear command center, realizing "soldier-vehicle-command" three-level networking.
• Concurrent multi-channel video: supports concurrent backhaul of multiple high-definition video channels (video up to 8+ hops), allowing the command center to view real-time pictures of multiple fire points and multiple rescue teams simultaneously and fully grasp the on-site situation.
• Self-healing, damage-resistant: when a node device fails or moves, the network automatically reconfigures and the remaining nodes re-establish routes without communication interruption, ensuring rescue continuity.

Application Value

Helps the rear command center grasp the full picture of the scene, scientifically dispatch rescue forces and improve rescue efficiency and safety. Firefighters can receive command instructions in real time, return on-site video and communicate by voice with the command center, avoiding blind action and maximizing firefighter safety and rescue effectiveness. It provides reliable communication support within the "72-hour golden rescue window", winning precious time for life rescue.

Emergency command communication support for sudden natural disasters such as earthquakes (especially strong quakes above magnitude 7), floods and waterlogging (flood peak transit, dam breach, urban inundation), mudslides, landslides, typhoons, and snow/freezing-rain disasters. Such disasters often cause large-scale damage to communication infrastructure and complete interruption of public-network communication, leaving emergency command facing an "information island" dilemma.

Deployment Scheme

• Rapid disaster-zone deployment: rescue teams carry YNW-7520A-BCJ devices into the disaster zone and rapidly establish temporary communication nodes, achieving wide-area coverage through multi-hop relay and breaking through terrain blockage.
• Air-ground integrated networking: combined with UAV aerial relay platforms, builds an "air-ground" three-dimensional Ad-Hoc network that breaks through the complex-terrain limits of mountainous areas and ruins, achieving full coverage of the disaster zone.
• Multi-hop relay wide coverage: supports 8+ video multi-hop relay with an air-to-air line-of-sight of 200+km; multi-hop cascading achieves wide-area coverage of tens to hundreds of kilometers to meet the large-area communication needs of the disaster zone.
• Self-healing, damage-resistant: the self-healing characteristic ensures the network automatically reconfigures when nodes move, devices fail or new nodes join, with no manual intervention, providing continuous and reliable communication support for emergency command.
• Multi-service fusion: supports fused transmission of on-site video backhaul, disaster-data reporting, rescue-team position sharing, command-issuing and victim assistance-requesting information.
• Front-rear linkage: the on-site disaster command post links to the rear provincial/national emergency command center via satellite links to realize real-time coordinated command between front and rear.

Application Value

Facing sudden natural disasters, it provides stable and reliable communication support for emergency command and dispatch, returning on-site video, disaster data and rescue-team positions to the front/rear headquarters in real time. The command center can fully grasp the disaster situation, scientifically schedule rescue forces, optimize rescue routes and improve rescue efficiency. It guarantees communications for life rescue within the "72-hour golden rescue window", minimizing casualties and property losses.

Forest scenarios such as forest fire monitoring, forest-zone patrol communication, watchtower interconnection, fire-suppression front-line command, fire-scene situation backhaul, wildlife protection in forest zones and forest-zone security control. China's vast forest resources are mostly distributed in mountainous and remote areas where public-network coverage is weak. Forest fire communication has long faced the challenges of difficult coverage, difficult networking and high cost.

Deployment Scheme

• Multi-point deployment in forest zones: YNW-7520A-BCJ can be deployed at multiple key points such as forest watchtowers, fire-prevention checkpoints and management stations to build a broadband Ad-Hoc private network covering the vast forest.
• Multi-hop relay across terrain: through multi-hop relay, terrain obstruction from forest cover and elevation changes is overcome to achieve wide-area coverage in complex terrain such as hills, mountains and canyons, with strong anti-multipath and diffraction capabilities.
• Watchtower-UAV-soldier collaboration: fixed watchtower monitoring, patrol UAV aerial inspection and fire-suppression soldiers deep in the fire front form a three-in-one collaborative network, returning video and alert information to the fire-prevention command center in real time.
• High-power long-distance: maximum 43dBm (2*10W) transmit power achieves more stable long-distance transmission over vast forest zones, reducing the number of relay nodes and lowering deployment cost.
• Automatic fire alerting: interfaces with fire-detection devices such as smoke sensors and infrared thermal imaging; automatic fire-alert information is returned to the command center in real time through the MESH network to realize early detection, early reporting and early disposal of outbreaks.

Application Value

Builds a broadband Ad-Hoc private network covering vast forests, returning video and alert information from watchtowers, patrol UAVs and fire-suppression front lines to the fire-prevention command center in real time for early detection, early reporting and early disposal of outbreaks. When fire occurs, it provides reliable communication support for fire-suppression front-line command, enhancing collaborative fire-suppression efficiency and firefighter safety, and providing solid communication support for forest-resource conservation and ecological security.