In addition to
binoculars and compasses used by the forward observer and his party in the execution of
their duties, the observation post also possesses two other aids to assist in the
detection and engagement of targets. They are a Night Observation Device (NOD) and a Laser
Range Finder (LRF).
NOD works on amplifying the natural light available
at night, allowing the user to see clearly to approximately 1500 m and with measured
clarity, to 3000 m.
The equipment currently on issue to the RNZA is the
NOD A. This equipment, including a method of obtaining a direction to the target, weighs
35 kg. The weight makes the equipment difficult to use in mobile operations where a
vehicle is not able to carry it. It is scheduled to be replaced by a lighter version of
Laser Range Finder
The RNZA is currently equipped with the LP7 Simrad
Laser Range Finder. The LP7 is manufactured by Simrad Optronics A/S in Norway. It
is a handheld unit intended for use by infantry and forward observers, with the size and
weight of a 7x50 binocular. The equipment has the following characteristics:
a. weight excluding battery - 2 kg;
b. minimum range - 150 m; and
c. maximum range - 9995 m.
d. telescope magnification - 7x
e. operating temperature - -30 deg C to +55 deg C
The LP7 can also be used with accessories such as a
lightweight tripod and a stand called HASE (Head Angular sighting Equipment) which
provides a bearing and vertical angle to the target as well as the range.
SG12F Digital Goniometer
The SG12 F is a compact, tripod mounted electro-optical survey
instrument to be used by OP and FO parties. It measures bearing, A/S and distance. The
built in Digital Magnetic Compass with tilt sensors determines magnetic north for
autonomous orientation to 3 mils PE. Once oriented the SG12F measures horizontal
directions by an encoder (+/- 1 mil) therefore the angles are not subject to magnetic
The software menus allow operators to accurately determine target
co-ordinates as well as target grid corrections and polar co-ordinates. There are
additional functions which provide target record facilities, target viewing and point
identification. The software was re-engineered by
New Zealand gunners for New Zealand operating procedures, and has
resulted in the SG12F becoming a very marketable worldwide defence product. It is fitted
with a Thermal Imager, GPS and Laser Range Finder (intended to be the LE7 eye-safe
version) making the system a comprehensive state of the art observation device.