Nepal Telecom to Deploy Leaky Feeder Technology for Mobile Network Inside Nagdhunga-Naubise Tunnel

Nepal’s leading telecom provider, Nepal Telecom (NTC), is set to introduce mobile network coverage inside the Nagdhunga-Naubise tunnel, a landmark infrastructure project, by deploying the country’s first-ever leaky feeder technology.

Following an agreement signed with the Department of Roads, NTC has started the procurement process to install leaky feeder cables along the 2,688-meter tunnel, aiming to provide reliable 2G and 4G mobile connectivity to users traveling through this key route. This deployment marks a significant step toward enhancing telecom services in challenging indoor environments.

What is Leaky Feeder Technology?
Leaky feeder technology uses specialized coaxial cables with small holes that allow cellular signals to “leak” out and provide wireless coverage inside enclosed or obstructed areas like tunnels, mines, subways, and large buildings. This technology overcomes signal blockages caused by concrete, water, or terrain, delivering seamless indoor mobile coverage.

Implementation Plan
NTC will install mobile towers at both ends of the tunnel, connected via radiating cables running inside. These cables will broadcast 2G and 4G signals, enabling mobile devices within the tunnel to maintain network connectivity.

Launch Timeline
While a firm launch date has not been announced, NTC will soon issue a global tender for the technology and aims to roll out the service shortly after completing preparations.