Detailed Answer
Port operations cover large areas (yards of hundreds of meters). Communication assurance: 1. Select 470MHz (Lideral, good diffraction); 2. High-gain antenna (5dBi+); 3. Repeater networking (cover blind spots); 4. Install receiver antenna at high position (yard line of sight); 5. Link budget design. Lideral provides repeater solutions; Xingjia provides port coverage solutions. Acceptance testing should be done under full-load conditions.
| Band | 470MHz |
| Antenna | High gain |
| Repeater | Cover blind spots |
Note:Container stacking causes severe obstruction; repeater positions need on-site survey.