NTS 01 Rev 1 – User Manual March 2006
______________________________________________________________________________
Page 28 of 31
Tekron International Ltd
PO Box 31 285 Lower Hutt 6009 New Zealand
tel:
+64 4 566 7722
fax:
+64 4 569 9272
email:
A.2
Antenna Assembly
Mounting Assembly - description
The supplied antenna includes an antenna mount is designed to fit over the top of a user-supplied
pipe like a capping. The mount is designed to be placed over the top of a user-supplied pipe,
through which the antenna cable runs. For maximum durability, the pipe should have walls of at
least 2mm thickness, and be treated to resist corrosion. The top end of the pipe should be cut flat,
so that the rubber gasket inside the antenna mount sits flush against it, forming an effective
weather seal. The mount is fixed to the pipe with a stainless steel hexagon- socket setscrew
(supplied).
The metal base of the antenna is affixed to the top of the mount. The antenna cable is passed up
through the pipe from the bottom end, and connects directly to the connector on the base of the
antenna.
Suggested Assembly order
1. Select a suitable location where the antenna has a good view of the sky. Avoid close
proximity to antennas from other services where possible. The antenna has excellent
rejection characteristics to out-of-band signals, as does the TCG 01 GPS receiver, but high-
powered RF signals in close proximity to the antenna may still swamp the very low-level
signals from the GPS satellites.
2. Establish the mounting method for the pipe, such as strapping to a frame on the edge of the
building, or to an air conditioning exhaust or similar. Note that the base of the pipe needs to
be accessible for the cable entry. If this is not practical, then a hole or slot can be made in the
side of the pipe to allow the cable to enter and be passed up to the top of the pipe.
3. Position the antenna cable inside the pipe, protruding from the top.
4. Pass the antenna mount over the top of the protruding cable, so that the cable passes through
the mount.
5. Connect the antenna to the cable, ensuring that the connector is not cross-threaded, and
tighten the connector. Do
not
over-tighten!
6. Position the antenna (connected to the cable) on top of the mount, and secure it firmly,
taking care
not
to rotate the antenna and cable (which could result in twisting the cable or
loosening the connector.
7. Place the antenna and mount assembly, complete with the cable attached, squarely over the
top of the mounting pipe, allowing excess cable to fall back through the pipe. Secure the
antenna mount with the setscrew, ensuring that the antenna assembly remains firmly pressed
against the end of the pipe, thus providing the exterior weather seal. Secure the now
complete antenna assembly and pipe to the previously prepared mounting structure.
