The Perfect Booster Placement Indoors
Place indoor/outdoor antennas to maximize coverage and avoid feedback (oscillation).
Understand isolation
Isolation is the separation between the outdoor donor antenna and indoor antennas. Poor isolation causes oscillation and automatic gain reduction.
- Maximize physical distance and barriers (roof, walls).
- Point the outdoor antenna away from indoor antennas.
- Use lower floors for indoor antennas if possible.
Indoor antenna placement
- Omni ceiling antennas for open floors and hallways.
- Panel antennas to push signal down corridors or into rooms.
- Center the antenna in the area you need most; height helps coverage.
Multi‑antenna layouts
- Split with a quality splitter (2‑way/3‑way). Use equal lengths for symmetric coverage.
- Balance by adding small attenuators if one branch is much shorter.
- Test each branch independently before combining.
Outdoor donor placement
- Mount high and clear; avoid walls/metal nearby.
- For LPDA, aim for the best RSRP and SINR.
- Seal connectors and add drip loops; keep run short (LMR400).
Pro tip: Complete a walk test (signal check) after installation and nudge antenna placement until weak zones improve.
Common mistakes
- Indoor antenna too close to the booster or donor antenna.
- Long, lossy coax runs from donor to booster.
- Mixing different antenna types without planning coverage.