Key Features
Rapid Deployment
Create a secure network in seconds. In critical situations, the U25 repeater’s push-to-start function automatically establishes an independent network upon power-up, extending radio coverage instantly when it matters most.
Infrastructure-Free Networking
Operate without reliance on IP links such as fiber or microwave. Using wireless interconnection technology, the U25 quickly forms flexible, multi-hop networks through cascading connections—anywhere, anytime.
Beyond-Line-of-Sight Coverage
Extend communications over the horizon. When deployed on a UAV at just 100 meters altitude, the U25 provides reliable network coverage across a 15–25 km range.
Airborne-Ready Design
The Defensor-U25 is a fully integrated base station engineered for UAV mounting.
- Suspended securely with four hanging ropes
- Compact, lightweight form factor
- Specialized 160° directional antenna (3dBi gain)
- Includes an internal lithium battery for up to 10 hours of life
- Delivers continuous operation for 6–8 hours under typical conditions
Improved for:
- ✅ Clearer feature descriptions
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- ✅ Logical grouping and scannable layout
- ✅ Consistent technical terminology
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Flexible Network Design
A single frequency can support 1–3 channels, enabling versatile configurations: – 2 hops, 3-channel ad-hoc network – 6 hops, 1-channel ad-hoc network – 3 hops, 2-channel ad-hoc networkMultiple Defensor U25 units—or a combination of U25 and other Defensor base stations—seamlessly form a multi-hop narrowband MESH network.
Cross-Platform Connectivity
Built on the proven Defensor hardware platform, the SWaP-optimized U25 extends reliable emergency voice communications to airborne operations. It integrates effortlessly with handheld, solar-powered, vehicular, and portable command systems for unified cross-domain connectivity.
Remote Monitoring & Network Awareness
The ad-hoc network created by Defensor-U25 repeaters can be monitored in real time using the portable Defensor-T9 on-site command center. Track online/offline status, battery levels, and signal strength—so you always know the state of your network.
Key Applications
When public networks fail, the IWAVE narrowband MESH system rapidly establishes a resilient communication network for: – Emergency rescue and public safety operations – Major event security – Field operations and emergency responseIt enables on-the-move communications, dynamically adapting to both ground and airborne platform speeds—ideal for highly mobile, dispersed teams.
Ready to deploy reliable, adaptable communications—anywhere, anytime.

| Tactical Airborne Adhoc Radios Base Station(Defensor-U25) | |||
| General | Transmitter | ||
| Frequency | VHF: 136-174MHz UHF1: 350-390MHz UHF2: 400-470MHz |
RF Power | 2/5/10/15/20/25W(adjustable by software) |
| Channel Capacity | 32 | 4FSK Digital Modulation | 12.5kHz Data Only: 7K60FXD 12.5kHz Data&Voice: 7K60FXE |
| Channel Spacing | 12.5khz | Conducted/Radiated Emission | -36dBm -30dBm>1GHz |
| Operating Voltage | 12V(rated) | Modulation Limiting | ±2.5kHz @ 12.5 kHz ±5.0kHz @ 25 kHz |
| Frequency Stability | ±1.5ppm | Adjacent Channel Power | 60dB @ 12.5 kHz 70dB @ 25 kHz |
| Antenna Impedance | 50Ω | ||
| Dimension | φ253*90mm | ||
| Weight | 1.5kg(3.3lb) | Environment | |
| Battery | 6000mAh Li-ion battery (standard) | Operating Temperature | -20°C ~ +55°C |
| Battery Life with standard battery | 10hours(RT, max RF power) | Storage Temperature | -40°C ~ +85°C |
| Receiver | |||
| Sensitivity | -120dBm/BER5% | GPS | |
| Selectivity | 60dB@12.5KHz/Digital | TTFF(Time To First Fix)cold start | |
| Intermodulation TIA-603 ETSI |
65dB @ (digital) | TTFF (Time To First Fix)hot start | |
| Spurious Response Rejection | 70dB(digital) | Horizontal Accuracy | |
| Conducted Spurious Emission | -57dBm | Positioning Support | GPS/BDS |
