An International Broadcast Association has condemned the deliberate jamming of shortwave broadcasts, including those from the ABC's Radio Australia service and the BBC, into Asia.

Chief Executive Simon Spanswick has told Radio Australia’s Connect Asia program research has indicated the jamming signals appear to be coming from within China.

"It appears to be quite wide," he said. "We've been talking to some monitors who keep ears on the shortwave bands around Asia and they say that it's certainly audible well outside China.

"So, one imagines, even with the geographic scale of China itself, that this is right across the region."

More information - http://www.abc.net.au/news/2013-03-08/an-broadcast-group-condemns-china-over-radio-jamming/4560514