RF Power Recommendations¶
JTXMesh
Proper RF power improves mesh health and reduces interference.
🔋 General Rule¶
Use the lowest power that maintains reliable links.
More power does NOT mean better performance.
📊 Recommended TX Power (915 MHz LoRa)¶
| Node Type | Environment | TX Power |
|---|---|---|
| Indoor Fixed | Typical home | 17–20 dBm |
| Outdoor Fixed | Roof / mast | 14–17 dBm |
| Mobile | Vehicle / portable | 14–17 dBm |
| Dense Node Area | Many nearby nodes | 10–14 dBm |
📡 Antenna Gain Guidance¶
| Antenna Gain | Recommended TX Adjustment |
|---|---|
| 0–2 dBi | No change |
| 3–5 dBi | Reduce TX by ~3 dB |
| 6+ dBi | Reduce TX significantly |
⚠️ Avoid¶
- Max power by default
- “Loud” nodes dominating airtime
- Power increases to fix bad antenna placement
✅ Better Than More Power¶
- Higher antenna placement
- Clear line of sight
- Quality coax and connectors