User's Manual

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Figure 5 Road and Trail Monitoring
4.1.2 Detection Range
Detection range varies with soil type and conditions. Generally speaking, clay is better than
sand as a transmitter of seismic signals since loose material (e.g. leaf debris, freshly plowed
or muddy soil) does not transmit as well as dry, hard packed soil. The stated detection range
is 0-30 meters. We have measured very good performance at 7.5 meters across a number of
soil types.
4.2 Maestro Gateway Start-up and Deployment
The gateway is powered by a COTS 12V, 22 amp-hr non-rechargeable battery. The gateway
battery has an estimated life of 21 days between battery change-outs. To remove the battery,
unlatch the latches located on the sides of the unit and remove the back cover. Disconnect
the battery at the quick disconnect junction and remove from the unit by gently pulling the
battery away from the front portion of the enclosure. To reinstall, repeat the above steps in
reverse order, taking care to properly orient the connector on the battery with the connector
on the rear of the enclosure. Then re-install the battery cover and secure with the latches on
the sides of the unit. Figure 6 below shows the gateway, battery, and cover.