Signal Booster for Tunnel in Ireland

Provide reliable mobile coverage throughout road and railway tunnels in Ireland.

We offer 8 signal boosters suitable for this application, starting from €895.00.

Road and railway tunnels are completely enclosed by concrete and rock, blocking all outdoor mobile signal. A high-power signal booster with directional antennas distributes 4G and 5G coverage along the full length of the tunnel — for motorists, commuters and safety systems.

How it works
Three components, one solution
1
Outdoor antenna
Mounted outside, it picks up the existing mobile signal from the nearest tower.
2
Amplifier
Boosts the incoming signal to the required power level — no subscription changes needed.
3
Indoor antenna
Distributes the boosted signal throughout the building. Every phone, tablet and router in range benefits simultaneously.
Recommended
Signal Boosters for this Application

Amplifier power: 20 dBm — Max. coverage: 2.000 m²

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Why it works
What makes this the right solution
✓ Designed for road tunnels, railway tunnels and underground passages
✓ Coverage along the full tunnel length
✓ High-power amplifier for maximum penetration through concrete and rock
✓ Supports 4G and 5G networks
✓ Works with all major mobile operators in Ireland
FAQ
Frequently Asked Questions
What signal booster do I need for a tunnel?
For tunnels, a 20 dBm booster with directional antennas is recommended. The system covers the full length of the tunnel and supports all major mobile networks for motorists and safety systems.
Does a signal booster support 5G?
Yes. Selected models support 5G frequencies used in Ireland.
Can a signal booster improve mobile internet?
Yes. A stronger signal can improve both call quality and mobile data performance.
Is a signal booster legal to use in Ireland?
Yes. Our signal boosters comply with European CE certification standards and are legal to use in Ireland.
Does a signal booster work in a building with thick walls?
Yes. The outdoor antenna is placed outside where the signal is strong. The indoor antenna distributes it throughout the building, regardless of wall thickness.
Can I use the booster with multiple phones at the same time?
Yes. A signal booster works passively — every device in range benefits simultaneously with no user limit.
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