The Belgian government has called a halt to a 5G pilot in capital Brussels over fears that 5G will not meet the city’s strict radiation rules. These are some of the toughest in the world, along with a few other markets such as Switzerland – but the decision raises the broader concern that the density of 5G base stations and antennas may create power output challenges more generally. Last year, three of Belgium’s operators came to an agreement with the government to relax the radiation rules in Brussels in order to support a 5G pilot, and Orange has already announced plans to deploy commercial 5G networks in the city soon. But environment minister Céline Fremault has decided to halt the…