Installation Guide

PAGE 2 | AU SUPPORT 1800 237 425 WWW.MATCHMASTER.COM.AU | NZ SUPPORT 0800 237 425 WWW.MATCHMASTER.CO.NZ
Attach the guy wires at the correct anchor points, but do not tighten fully. Turn the mast until antenna gives best results,
and then tighten all guy wires evenly, ensuring that the mast remains straight and vertical. Guy pretension is to be 10% of
the specied guy minimum breaking force. For the recommended 7/1.25 G380 guying strand, pretension is to be 32 kg.
Pretension may be checked by attaching the lifting hook of a suitable spring balance to the lower guy thimble and applying
sufcient force to pull the lower guy thimble out of contact with the lower anchor. For added security, wire turnbuckles to
each other (g 4).
Telomast Maximum Design Loads
Matchmaster has been designed to conform to the requirements of the relevant Australian Standards:
AS 1170.1 1989 SAA Loading Code Part 1: Dead and live loads and load combinations
AS 1170.2-1989 SAA Loading Code Part 2: Wind loads
AS 4055-1992 Wind loads for housing
AS 4100-1990 Steel structures
AS/NZ 4600-1996 Cold-formed steel structures
Rationalised gust wind speeds have been used to simplify the determination of the maximum allowable head loads (antenna
projected wind area and weight).
Maximum Permissible Head Loading for wind classications up to W41: Maximum antenna C
d
* Area† 0.30 m
2
Maximum
antenna weight 15 kg
Table 1. Typical Antenna Head Loadings:
Hills Part# Antenna Projected Area C
d
*Area† Weight
FB601308 CA16 VHF Antenna 0.23 m
2
0.28 m
2
6.2 kg
FB607083 TMX34 UHF Antenna 0.08 m
2
0.10 m
2
1.8 kg
FB608519 OMX400plus VHF/UHF Antenna 0.20 m
2
0.24 m
2
6.5 kg
FB606962 REF 25 Microwave Reector 0.11 m
2
0.14 m
2
3.7 kg
† C
d
* Area is the sum of the projected areas of each of the components
of the antenna multiplied by a drag force coefcient in accordance with
AS1170.2
Table 2. Worst case ultimate limit state loads at mast base and guy anchor
points resulting from maximum permissible
head loading:
Load
Direction
At 3m Guy
Anchor
At 6m Guy
Anchor
At 7.5m Guy
Anchor
At Mast Base
FH 1.38 kN 1.08 kN 1.50 kN 0.15 kN
FV 1.92 kN 1.88 kN 2.73 kN 6.24 kN
It is the responsibility of the installer to ensure that any structure to
which the Telomast is xed, as well as the xing devices, are capable of
supporting the design loads. The maximum ultimate limit state loads at the
mast base and guy anchor points for the worst case loading situation are
shown in the table above. The loadings are applicable to three and four way
guying arrangements.