EDI DSTS-5A 사용자 설명서 - 페이지 5

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5.5.1.1 There are two modes of operation for the DSTS-5A, the -4A mode and the
-5A mode.
5.5.1.1.1 The -5A mode is used with the supplied Window's program and can
5.5.1.1.2 The -4A mode emulates a DSTS-4A with the EAB-3 option and is
5.6 The velocity of propagation for a new unit is set to 4800 feet per second and 1500
meters per second. These values are stored in eeprom and may be changed if desired.
5.6.1 For metric calibration first choose the metric mode by typing "cm"followed by
'enter'. Then type a lower case 'v' followed by the desired Vprop in meters/sec. For
example, to set Vprop to 1502 meters/ second type "v1502" and 'enter'.
5.6.2 For setting Vprop in feet first choose the foot mode by typing "cf"followed by
'enter'. Then type a lower case 'v' followed by the desired Vprop in meters/sec. For
example, to set Vprop to 4915 feet/second type "v4915" and 'enter'.
5.6.2.1 FISH ECHO GENERATION
5.6.2.1.1 The DSTS-5A is capable of generating a secondary echo between the
5.6.2.1.2 SETTING UP A TYPICAL FISH ECHO
DSTS-5A Manual
also be controlled from any terminal program by sending the commands
detailed in the "Command List for -5A Mode".
only intended for use by customers who are currently using the DSTS-
4A/EAB-3 in production test.
surface and bottom. This echo can be used to simulate an echo from a fish
or other object above the bottom and will be referred to as a fish echo. The
depth, width, amplitude, duration and arch shape of the fish echo can be
set. The duration of the fish echo is set by specifying the number of echoes
that the fish will generate as it passes under the transducer. A more realistic
fish echo can be generated by specifying a depth increment. The depth of
the fish echo is decreased for half the duration then increased for the
remainder of the duration. If the increment is set to zero the fish echo will
remain at a constant depth during its duration.
5.6.2.1.2.1 Set the bottom depth to 25 feet by typing "d250 'enter'". Set the
fish depth to 23 feet by typing "D230 'enter'". Set the fish echo off time
to 20 pulses by typing "e20 'enter'". Set the fish on time to 3 pulses by
typing "E3 'enter'" and the fish echo will appear for 3 pulses every
twenty pulses and repeat until disabled by typing "e 'enter".
5.6.2.1.2.2 The amplitude of the fish echo can be set using the "L"
command.
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