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The rubber duck antennas are frequency specific, tuned to the low frequency
detection channel. The bandwidth of these antennas is such that if a different
frequency is desired to be used, a corresponding different antenna must be used.
The bandwidth of the dipole loop antennas are a few hundred MHz, therefore a 600
MHz antenna can adequately cover from 500 to 700 MHz. The antennas are tuned to a
specific central frequency, and are available in steps of 50 MHz from 400 MHz to 700
MHz.
The loop antenna ships with a highpass filter attached – the purpose of which is to
increase overall sensitivity.
Wi-Fi antenna
Navigator Plus contains an internal Wi-Fi antenna that connects with the external
Wi-Fi transmitter utilized for communication between the field device and the server.
Battery charging
The device battery is charged through the companion cradle, directly through the
vehicle battery. An optional DC power pack charger is also available. The detector is
designed to be stored and used in the cradle at all times other than when not in use in
Walk mode while moving about performing the final leak location. If a battery
becomes fully depleted, it will require charging of at least 30 minutes prior to being
able to be used in detector mode. Like all Lithium Ion batteries, the temperature in the
charging environment needs to be above freezing in order for the battery to enter the
charge cycle.
Patents
QAM Snare is protected under the following US Patents.
Other US and Foreign Patents for QAM Snare are Pending.
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