Restrictions on operational fixed stations in the 421-430 MHz band.

It currently has a total of 80 operational stations across 70 km (43 mi) of double commercial line.

Brunel's terminus is no longer part of the operational station.

Quite apart from the sheer mystery of all that I had to behold on arrival at an up-to-date operational station.

Two walls were dedicated to operational stations, containing units that looked like computers.

Unknown to German intelligence, Lympne itself was not even an operational station.

The oldest station still operational in London is at Clerkenwell.

We're off for the next six hours, you know, so there's time for you to settle in before the station's operational again.

It has 18 operational stations along 27 kilometres (16 mi) of underground track.

However, in 1991 the building was removed, refurbished and now resides at the operational station of Colby on the south line.