Uploaded November 2025 | Updated September 2026, 2 weeks ago
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Radio enthusiasts know how annoying it can be when you switch on your set and are met with high levels of background noise. It can really hamper your listening efforts and make the bands unusable.
Now imagine being a scientist at a colossal 250ft diameter radio telescope at the height of the space age and seeing your work ruined by radio interference.
This is the Lovell telescope at Jodrell Bank Observatory in Cheshire. It’s so powerful it could detect a mobile phone signal on Mars over 226 million miles away.
It’s no coincidence that therefore, mobile phones aren’t allowed on the site and there’s clear signage at the entrance saying so.
In the 1950’s and 60’s, interference from a car starting up two miles away could ruin the signal being tracked from a galaxy millions of light-years away.
The battle for radio quiet was headed up by Sir Alfred Charles Bernard Lovell, a British physicist and radio astronomer. He was the first director of Jodrell Bank Observatory, from 1945 to 1981.
By the 1990’s, a new type of interference began to plague Jodrell Bank: the mobile phone. The observatory banned them in January 1994 citing interference issues.
Radio quiet zone signs were erected around the site from then on and visitors and workers are asked to turn their phones off.
► Buy me a coffee: paypal.me/ringwaymanchester
► Join this channel to get access to perks:
youtube.com/channel/UC67TJP9i84zbCi2h1aaSO6Q/join
► Email: ringwaymanchester@mail.com
► Instagram: instagram.com/m3hhyofficial
► Facebook: facebook.com/M3HHY
► Twitter: twitter.com/OfficialM3HHY
Radio enthusiasts know how annoying it can be when you switch on your set and are met with high levels of background noise. It can really hamper your listening efforts and make the bands unusable.
Now imagine being a scientist at a colossal 250ft diameter radio telescope at the height of the space age and seeing your work ruined by radio interference.
This is the Lovell telescope at Jodrell Bank Observatory in Cheshire. It’s so powerful it could detect a mobile phone signal on Mars over 226 million miles away.
It’s no coincidence that therefore, mobile phones aren’t allowed on the site and there’s clear signage at the entrance saying so.
In the 1950’s and 60’s, interference from a car starting up two miles away could ruin the signal being tracked from a galaxy millions of light-years away.
The battle for radio quiet was headed up by Sir Alfred Charles Bernard Lovell, a British physicist and radio astronomer. He was the first director of Jodrell Bank Observatory, from 1945 to 1981.
By the 1990’s, a new type of interference began to plague Jodrell Bank: the mobile phone. The observatory banned them in January 1994 citing interference issues.
Radio quiet zone signs were erected around the site from then on and visitors and workers are asked to turn their phones off.
