very high frequency
A ‘Field Day’ is an occasion for the Amateur Radio operators aka Ham operators to test their skills in erecting antennae and establishing communication links with outside world with HF and VHF bands. A special call sign AU5HYD was allocated by the Union Government for the event.
Rachakonda Police Commissioner Mahesh M Bhagwat said that around 200 surveillance cameras were being installed in and outside the stadium including at check points and parking areas
A 19-year-old ham was detained at Nagole Metro Station and questioned for almost one hour