Detailed Answer
Distance evaluation: Nominal range (LDER 200m open field) × environmental factor: workshop 0.5–0.7 (obstacles), yard 0.8–1.0, dense metal environment 0.3–0.5. Evaluation methods: 1. On-site testing (most accurate); 2. Reference similar industry cases; 3. Link budget calculation. If insufficient: high-gain antenna (+30–50%), repeater (doubles range). Reserve 20% margin in acceptance testing.
| Workshop | Nominal × 0.5–0.7 |
| Yard | × 0.8–1.0 |
| Extension | Antenna / repeater |
Note:Test the actual distance at acceptance — don't just trust the spec.