HD-MAX Echo Sounder User Guide
11
Time varying gain (TVG)
When the acoustic wave propagates in water, sound intensity will attenuate
according to exponential laws. To maintain stable signal amplitude, TVG will
control the receiving amplifier to increase magnification according to
contrary law, which is the so called TVG.
Product features
Industrial-grade integrated design with multiple functions.
Full edition Windows XP system is adopted with 17" TFT display screen
as well as ultra high hardware configuration.
High strength engineering plastic and reinforced structure design are
adopted to replace traditional metal shell.
Chart display control and various information query functions are
available to realize intuitive display as well as convenient operation.
High equipment integration, information integration and functional
integration.
Technical parameters
Table 5.1 Technical parameters of HD-MAX series products
CPU speed: 1.6G*2
RAM: 2GB
Memory space: 16GB SSD
Display screen size: 17"
Display resolution: 1280*1024
Starting time: < 40s
High frequency emitted from the probe: 200KHZ
Point-positioning precision: <2.5M (built-in GPS function)
Input voltage: 10
～
30V
Average power consumption: <40W
Operating temperature: 0
～
50˚C
