Kongsberg 1007D, Operator'S Manual

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1007D Altimeter Operators Manual 974-72007001/1.0
General Description Page 3
Kongsberg Mesotech Ltd.
Port Coquitlam, BC - Canada
The 1007D is capable of measuring altitude at high resolution.
A resolution of better than 2.5 millimetres can be achieved for
distances up to 38 meters. The resolution is adjustable to
allow the operator to optimize the balance between resolution
and ping rate.
In its standard stand-alone configuration, the 1007D is
connected to a remote PC or computer terminal via an RS485
or RS232 interface. Range measurements are up-linked
directly to the host computer in a number of selectable ASCII
formats and range units. Legacy Model 808 or 809 Altimeter
output formats are also available. Range measurements can
also be output to a DC voltmeter from an optional analog
interface like that found in our Model 807 Altimeters. The
voltage output is directly proportional to the range (10 volts
corresponding to maximum range).
The 1007D's programmable gain receiver is controlled by a
"Time Varying Gain" (TVG) function to compensate for
acoustic return signal losses that increase with range. This
process is microprocessor controlled and is applied during
each ping, synchronized to the start of the transmit pulse. The
TVG function is therefore very stable and accurate, and
results in a very stable output signal.