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Initialisation and warm-up
To initialise the RT-
Backpack exceed the “initialisation speed” specified in NAVconfig Options (Page
11). It is important to walk forwards and in a straight line the first time the initialisation speed is
exceeded.
Figure 11. Operating the RT-Backpack
It is important not to spin too quickly when wearing the RT-Backpack as this can saturate the gyros.
The RT sensor is designed to work on vehicles, boats and aircraft. Humans can spin much faster and
therefore exceed the operating thresholds of the sensors. Care should also be taken when donning
the backpack for the same reason. If the specification of the gyros is exceeded, the RT may need to
be reset and go through the initialisation and warm-up process again.
Data from the RT-Backpack can also be monitored in the RT-Range software, using the Real-time
display window. A full explanation of this can be found in the RT-Range manual in the Real-time
display section. It is worth noting that even though the RT-Backpack is transmitting data to the
RT-Range, it does not mean the RT-Backpack has achieved its expected accuracy, and care should
be taken to check this before any test commences.
During tests it is quite feasible for the person wearing the RT-Backpack to monitor its status using
NAVdisplay and a laptop PC connected wirelessly to the relevant RT device. Doing this will not affect
the performance of the RT-Backpack or the data being broadcast to the hunter RT-Range device.
Charging the battery
The RT-Backpack is supplied with a maintenance-free, rechargeable lead acid battery and mains-
powered charger. In ideal conditions the battery should provide approximately three-to-four hours of
use before needing a charge
—although it is advisable to start any test with the battery in a fully
charged state.
While it is impractical to walk around with the RT-Backpack while charging, configuration changes or
bench-tests can be conducted while the system charges. The battery can be charged without
powering down the RT-Backpack.
Using the RT-XLAN
The RT-XLAN in the RT-Backpack will come pre-
configured as a “client” and will be ready to be used
as a target.
