The Lyndoch transmitter and Local Management Facility: Collingully Defence Communications Station – Transmitter (DEFCOMMSTA)

 military, transmitter

Modernised High Frequency Communications System (MHFCS)

The Defence Department operates a high frequency transmitter facility on the Collingully – Lockhart
road, 35.6 kms due west of Wagga Wagga at coordinates 35° 7′ 31.79″S, 146° 58′ 44.58″ E.[v] The
site is locally known as Lyndoch, after the name of the homestead on whose land it is built. The
address is 51 Lockhart Road, Brookdale, NSW 2656. “Lyndoch” is the name of a Defence
Department property of 2,092 ha.[vi] formerly owned by the Bruckner family[vii], now leased back to
the family in conjunction with its Defence use. Various names for the facility appear, including
“Collingully Defence Communications Station – Transmitter (DEFCOMMSTA).[viii]
The HF transmitter consists of a main circular antenna array made up of two concentric rings of
masts, with ten smaller antennas outside the circles. The outer ring is 500 m. in diameter, with 18
pairs of masts. The inner ring is 365 m. in diameter, and is made up of 20 single masts. (Figure 2)
Surrounding the two core circles are ten separate sets of antennas: three sets with four masts, three
log periodic antennas, and two sets of pairs of two masts, and two rosette antennas with single
masts. (Table 1 and Figures 2- 5, and Table 1)

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