But in the latest twist, the authority said the requirement would stand whether it was one person or 5,000.

A mobile television licensee can air shows for people on the go, but not offer “fixed services”.

Ho said a fixed service meant any television service that could be picked up by a household antenna. “By providing a fixed service, HKTV would breach the licensing conditions of mobile television,” he said.

Ofca advised HKTV to adopt a standard other than DTMB, such as those used for mobile television in Japan and Europe.

Wong called the requirement unreasonable, as it was impossible for a station to prevent viewers from plugging in receivers to public antennas.

“I’ve been working in the telecoms engineering field for more than 25 years. It is mission impossible,” he said.

HKTV’s application for a free-to-air television licence was rejected without a convincing explanation in October after a three-year wait. Wong pressed ahead with plans for a mobile service in December after acquiring China Mobile Hong Kong for HK$142 million along with its mobile television licence. His plan to launch in July came to a halt after Ofca disapproved of a change in transmission standard.