Apartment Building Cell Signal
Whole-building coverage without a booster in every apartment.
Application Overview
Apartment building cell signal drops on upper floors and interior units because of concrete slabs, rebar and coated windows. A building-wide system with a roof donor and service antennas in corridors or risers can cover all units without a booster in every apartment. Confirm the building height, floor plan and target bands before design.
Typical Installation Layout
A typical installation uses an outdoor donor antenna, a booster or fiber repeater, a distribution network and indoor service antennas.
- 1
Mount a donor antenna where the outdoor signal is strongest, usually on the roof or a high wall.
- 2
Run low-loss coaxial cable to the booster located in a ventilated indoor space.
- 3
Distribute the amplified signal to ceiling or wall antennas on each floor.
Installation notes
- Keep at least 8–10 m and a wall between donor and service antennas to avoid self-oscillation.
- Use a power splitter when more than one service antenna is required.
- Confirm the target bands before ordering; band combinations vary by country and operator.
Recommended Signal Booster Solutions
The models below are a starting point. The final Bill of Materials is confirmed after a site survey.
AL-30 Multi-Band LCD Signal Booster
Multi-band booster with LCD display, AGC and isolation detection for 100–3,000 m² coverage.
HAG-19-23T Single-Band Booster
Single-band booster covering 1,500–2,800 m² with ALC/AGC.
HAG-05-DP Compact Dual-Band Booster
Compact 20/27 dBm dual-band booster with ALC/AGC.
Request a Solution
Share your floor plan, coverage area and target bands. Our engineering team will propose a practical configuration.
- sale@cellphonenetworkbooster.com
- Mon – Fri, 9:00 – 18:00 (GMT+8)
Helpful with your enquiry
- Floor plan or site photos
- Area, floors and ceiling height
- Target bands and operators
Frequently Asked Questions
Can one booster cover a three-floor house?
Yes, provided the output power and antenna count are sized correctly. A 20–30 dBm host with 4–8 service antennas is a common starting point for a 300–600 m² house.
Do I need an outdoor antenna if the signal is weak outside?
A booster needs a usable donor signal. If the outdoor signal is below the operating threshold, a higher-gain directional antenna and a site survey are recommended before choosing a model.
Will the booster interfere with the mobile network?
A properly installed booster with adequate antenna isolation and ALC/AGC should not interfere with the network. Installation must follow local regulations and operator requirements.
Can the system be customized for our market?
Yes. Frequency bands, housing, logo and packaging can be customized. Send us the target country and operator bands for a proposal.