Wiktionary
n. A facility established to monitor radio and microwave signals and analyse their content to secure information and intelligence for use by the security and diplomatic community and others.
Wikipedia
A listening station is a facility established to monitor radio and microwave signals and analyse their content to secure information and intelligence for use by the security and diplomatic community and others or to make local transmissions more widely available, thus the London pirate listening station streams London FM pirate transmissions via the internet to the global community.
Y-stations were British Signals Intelligence collection sites initially established during World War I and later used during World War II.
Examples are BBC Monitoring at Caversham, RAF Menwith Hill, Harrogate and Government Communications Headquarters (GCHQ), Cheltenham; London Listening Station.
Usage examples of "listening station".
Now the Brits and Americans maintained highly sophisticated electronic intelligence gathering facilities on the Rock, including a state-of-the-art Echelon listening station, linked by secure satellite ground stations and digitally encrypted fiber-optic pipelines run by the National Security Agency.
This guy was selling nuclear detonators on the black market and we were assigned to recon the house, come back to the UK, and plan how to put the devices in so that a listening station set up in a nearby hotel room could find out what was happening.
One is that it's a listening station capable of intercepting telephone, radio, and radar signals across the United States.
He had been speaking to Cheltenham, the huge national listening station in the west of England.
Below that, there is some gear to translate those signals into a digital form and transmit the results to a listening station nearby, probably right on the other side of one of these walls.
The listening station had been hastily built during the buildup for DESERT STORM as a means of gathering tactical intelligence for allied military units, then to be expanded for continuing interest in the region.
Every word your president utters is transmitted to a listening station nearby.
She had decided to contract-purchase the old ship and offer it as a listening station so close to the Perfidisian system.