Radio New Zealand International Technical

Radio New Zealand Transmission Engineer Andy Anderson shows off a high power water cooled valve, water cooled inductors and capacitors. Also a blower for the air cooling and the transmitter output BALUN.

This motor driven switch is one of several controlled by the automation system. These switches reconfigure the antenna system depending on the frequency and bearing required by the transmission schedule.

Transmitter building, 50 ohm un-balanced feeders, tapered line BALUNs, balanced transmission line switches, and power dividers.

Antenna maintenance work in progress.

This cabinet contains the control system for the transmitter, including the ECOS2 computer, the modulator and all the servomotor drivers.

Transmission line (stub) combiner used to combine two 100kW transmitters on 6 and 7MHz to one antenna.

This motor driven coaxial switch is controlled by the automation system and switches Tx1 or Tx2 to the antenna. By default, whichever transmitter is not connected to the antenna is connected to the dummy load.