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Manual de instalación e Instrucciones del FISH 4350 / FISH 438044
NAVMAN
Frecuencia y ancho del cono
El impulso generado por los transductores
FISH 4350 y FISH 4380 viaja en el agua hacia
abajo, extendiéndose en forma de cono. En el
interior de este cono, las señales devueltas son
las más intensas. El ancho del cono depende
del diseño del transductor y de la frecuencia
del impulso: con el montaje sobre travesaño
Navman servido, este cono es de unos 15°.
Las cifras son aproximadas.
Profundidad 200 kHz
15°
50
100
150
200
0
13
27
40
54
Quelpo / Algas
Los fondos
duros como
rocas o coral
se muestran
como bandas
anchas
Los fondos
blandos como
barro, algas
y arena se
muestran
como bandas
estrechas
Tipos de fondos
Los fondos de barro, algas y arena tienden
a debilitar y dispersan el impulso del sonar,
transmitiendo un eco débil. Los fondos
duros, rocosos o de coral reß ejan el impulso,
transmitiendo un eco fuerte. Ver Párrafo 5-3
pantalla Fondo Sonar.
Sombras
Las sombras se crean alrededor de las áreas donde el haz ultrasónico no se puede “ver”. Estas
áreas incluyen huecos del fondo o alrededores de rocas y salientes, donde los ecos fuertes
devueltos por las rocas oscurecen los ecos menos intensos de las presas, y pueden crear una
doble traza del fondo. Ver lo expuesto a continuación para un ejemplo de la pantalla sonar en
tales condiciones. Se aprecia una doble traza de fondeo en pantalla.
Ejemplo de sombras
Pantalla sonar de misma área
La presa es visible en la pantalla
La presa está escondida por los ecos
fuertes fuera del fondo y no se puede
apreciar en pantalla
La presa es visible en pantalla
18


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Others manual(s) of Navman FISH 4380

Navman FISH 4380 User Manual - German - 31 pages

Navman FISH 4380 User Manual - Dutch - 31 pages

Navman FISH 4380 User Manual - French - 34 pages

Navman FISH 4380 User Manual - Italian - 32 pages

Navman FISH 4380 User Manual - Portuguese - 35 pages

Navman FISH 4380 User Manual - Swedish - 29 pages


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