Engine room and southwest corner of transmitter hall, c1970. Courtesy Jon Asmus
The hostel for single staff at Himatangi Radio contained 14 bedrooms plus a 2-bedroom flat for the hostel manageress. Photo c1970
A portion of the aerial transmission line network at Himatangi Radio, including three of the remote-controlled switches. Photo courtesy Jon Asmus
Technician inspects power-driven aerial transmission line switch, one of many such switches controlled from a console in the transmitter hall. Photo courtesy Jon Asmus
Aerial switching console, which remotely controlled switches in the antenna field. Photo courtesy Jon Asmus. Click to enlarge.
George King (right) Officer-in-Charge, Himatangi Radio shares a light-hearted moment with Deputy OIC Don Snadon at the control console, c1974. Photo: Rex Johnson
10kW Collins Auto-Tune transmitter with coaxial aerial output seen at top right, c1974. Photo: Rex Johnson
The first Collins was installed in 1974 while I was at Himatangi. The aerial output was coaxial (the black tube in the top right corner of the TX picture) and it fed a coaxial aerial switch matrix mounted on the wall behind it. The output of the matrix went to a high-powered balun transformer for converting the 75 ohm coax output to the standard 600 ohm open-wire feeders used on the outside plant. The transmitter was self-tuning (from data selected at the drive unit) and fed a purpose-installed vertical wideband double-discone for use on the HF shipping radiotelephone service.
– Rex Johnson
Two Collins transmitters buttoned up on the night shift in the early 1980s. Photo: Alan Turner
Drive unit for Collins Auto-Tune transmitter, c1974. Photo: Rex Johnson
Robert Burnett at the main console in the Himatangi Radio transmitter hall. This photo was taken after changes to the indicator panels here and on the aerial switching console. Photo courtesy Jon Asmus. Click to enlarge.
Drive Room looking east towards the air-con room, c1970s.
Photo: NZPO, courtesy Jon Asmus. Click to enlarge.
Drive Room looking west towards the main entry, c1970s. Photo: Rex Johnson. Click to enlarge.