Boeing said India's current mitigation measures were not enough and required no 5G services within 3.2 miles (5.1 km) of the airport. Operators object that if India accepts Boeing's request to ban 5G within 5km of the 3300-3670MHz or C-band spectrum, it will affect most Indian cities because many airports are in the middle of the city. Currently, 5G is banned within 2.1 km of the airport.

However, Boeing recently wrote to the Indian government that the measures currently taken by India are "minimal" and do not take into account the situation in which the aircraft deviated from the center line of the runway and the taxiway during the approach. "if India takes these problems into account, the runway safety zone will need to be expanded to cover an area larger than the current 2.1 km." In addition, the measure is only a temporary measure, and the altimeter of the aircraft must be replaced in order to provide a permanent solution.

However, Boeing recently wrote to the Indian government that the measures currently taken by India are "minimal" and do not take into account the situation in which the aircraft deviated from the center line of the runway and the taxiway during the approach. "if India takes these problems into account, the runway safety zone will need to be expanded to cover an area larger than the current 2.1 km." In addition, the measure is only a temporary measure, and the altimeter of the aircraft must be replaced in order to provide a permanent solution.

Extended reading:

The frequency of the C-band network is 3.7-3.98 GHz, which is too close to the 4.2-4.4GHz frequency used by the airport radio altimeter. In extreme cases, it may cause signal interference and affect the aircraft's near-ground landing.

The 5G network in a specific frequency band will cause interference to the radio altimeter on the aircraft, but it does not cause a large area, and the impact on the domestic aviation industry is minimal.

The mainstream 5G network frequency bands in China are N41, N78 and N79, which are all intermediate frequency bands, but they do not intersect with the working frequency of the altimeter and are not affected.