Most of the transmitters at Himatangi Radio and most of the receivers at Makara Radio were controlled from two facilities in Wellington:

The following information is from a NZ Post Office engineering lecture for trainee radio engineers. The document, dated January 1960, is courtesy Chris Underwood.

1960 description of Radio Telegraph and Radio Telephone centre

In this 1956 video produced for the New Zealand Post Office, Himatangi and Makara Radio Stations are seen briefly, beginning at 1:45.