Vexilar FL-8SLT - Manual (Page 18)

18
How Far Down The Ice Hole Does The Ice-Ducer Have
To Be?
You need water contact only to get a depth reading. The bottom or
the face of the transducer, only, has to make contact with the water in
order to get a good transfer of sound waves into the water
There are times (usually deep ice - 36" or more) when the transduc-
er needs to be placed at the bottom of the ice. The zero indication of the
flasher will be unusually wide, 8 to 10 feet wide. This can be caused by
the transmitted signal ringing back and forth through the depth of the
hole. By extending the transducer to the bottom of the hole this ringing
can be eliminated. Now the lake depth must be mentally corrected for
the new position of the transducer.
Will The FL-8SLT Read Through The Ice?
YES! It will easily read through ice, provided the ice is CLEAR ICE
and not MILKY ICE. Remember, the transducer must have GOOD CON-
TACT with the surface of the clear ice. A bottom indication should appear
on the sounders dial at an appropriate depth. The ice surface must be
wet; water works well.
Why Do I Get Interference?
Electrical interference can be caused by other electrical equipment
that put unwanted signals on the power line. It usually can be reduced
or eliminated by simple fixes such as resistor spark plugs and wires on
the engine or better grounding on the electrical system. Sometimes, how-
ever, there can be equipment problems that need shop service.
Another kind of interference comes from another depth finder oper-
ating on the same frequency nearby. The FL-8SLTs interference rejection
circuitry is designed to knock out most or all of this, but sometimes severe
conditions can still cause interference. The two factors that determine if
this happens are: a) the depth of the water and, b) how far apart the two