Kintronics Labs has reactivated a 25kW DRM-ready Nautel transmitter on 1449 kHz for the Maldives state media provider Public Service Media (PSM).  

The transmission site is on the remote island of Thilafushi in the Republic of the Maldives under a contract with Radio Frequency Systems (RFS) Australia. 

Thilafushi is a man-made island built on top of a landfill.

Kintronic provided custom, wideband MW phasing and matching networks for the two-tower directional operation on 1449 kHz at 25 kW transmitter power. The towers are triangular, series-fed, guyed towers with overall heights of 53.3 meters. The whole system was designed for DRM compatibility.

It also provided technical support in the design of the RF ground system; the physical and electrical design of the towers; the site layout defining the location of the transmitter building relative to the two-tower array; the design of the directional pattern as per the customer’s direction; and the final antenna system adjustment, full power testing, and pattern proofing.

Following final adjustments of the antenna system, the resulting input impedance VSWR was