Publish Time: 2020-05-29 Origin: Site
IFLY Defensor system integrated the digital simulcast technology with ad-hoc network, which supply clear audio, seamless roaming and simple operation for emergency critical comunication. It enables the system to extend coverage any time, any where. As long as the portable base station arrives where signal is week, it will automatically join the network with power-on.
DMR and TETRA are very popular mobile radios for two way audio communictation. In the following table, In terms of networking methods, we made a comparison between IFLY Ad-hoc network system and DMR and TETRA. So that you can choose the suitable system for your variety application.
| IFLY Ad-hoc two way Radios | DMR or TETRA Radios | |
| Fixed Infrastructure | No Need | Required |
| Latency for initiating a call | As quick as regular walkie-talkies | The call is initiated by the control channel. The latency is longer. |
| Anti-damage ability | Strong 1. The system doesnt rely on any wired link or fixed infrastructure. 2. Connection between each device is wireless. 3. Each devices are powered by built-in battery. So the whole system has strong anti-damage ability | Weak 1. The hardware is complex 2. The system's operation relys on wired links. 3. Once the infrastructure is destroyed by disaster. The system will not work normally. so its anti-damage ability is weak. |
| Switch | 1. No need wired switch 2. Adopts air wireless switch | Switch is required |
| Coverage | Because the base station adopts mirroring technology, the rf is cross-radiated. Therefore, the system has a better coverage with fewer blind spots | More blind spots |
| Expansion capacity | Expand the capacity without limitation | Limited expansion: Limited by frequency or other factors |
| Centerless ad hoc network | Yes | No |
| Hardware | Simple structure, light weight and small size | Complex structure and big size |
| Sensitivity | -126dBm | DMR: -120dbm |
| Hot backup | Multiple base stations can be used in parallel for mutual hot backup | Not support directly performing hot backup |
| Fast Deployment | Yes | No |
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