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SONAR — An abbreviation
of SOund, NAvigation, and
Ranging. Developed as a
- means of tracking enemy sub-
marines during World War il.
In simplest terms, sonar is
an electrical impulse converted
into a sound wave and trans-
mitted into the water.
Distance to a target can be
determined by measuring the
amount of time it takes for the
sound wave to reach the target
and return.
RANSDUCER — Con-
verts electrical impulses into
sound waves, which are trans-
mitted into the water. The
return echos are converted
back into electrical impulses
which are amplified by the
receiver and displayed on the
sonar unit.
DEPTH-FINDER — One
of the many names applied
through the years to a sonar
they can do
more than measure the water
depth. A powerful unit can
also show fish, structure, and
other underwater objects on
the display, and is an excellent
aid to navigation. Also called
locators, scopes, depth gauges,
depth sounders, echo sound-
ers, fish-finders, sonar units
and other names. The fi
FLASHER — A type of so-
nar unit which displays the
water depth, the depth of fish
and other objects by means of
a small source of light which
is attached to a rotating disc.
GRAPH --A sonar unit
which prints 2a picture, by
means'of a stylus burning into
a carbon-impregnated paper.
It provides the same informa-
tion that is found in the
flasher, but offers easier inter-
pretation of the information,
with the advantage of havinga
permanent record. Also called
a recorder, chart, graph re-
corder, depth-recorder, and a
range-recorder.
DIGITAL —A sonar that
provides the depth informa-
tion by using a digital display.
Sonar units that use liquid
crystal displays (LCD), such
as the Lowrance LDD-1800,
are considered superior over
units that use Light Emitting
Diodes (LED), since they can
be read even in the bright
sunlight
sonar unit is set to
r example, a range
0-60 feet on a graph
ns that the ‘maximum
depth that can be displayed
before the bottom echo drops
off the chart paper is 60 fe
me
the inconvenience.
On a flasher unit, it is the
maximum depth displayed be-
fore the bottom echo passes
the zero reference mark.
ALARM —An audible
warning system built into
some sonar units to warn of
danger areas, such as sand-
bars, rocks, or low water. It
can also alert boat operators
that fish are present within a
preset range selected by the
operator.
SCALES — Feet, fathoms
or meter marks printed
around or next to the display
of sonar units. For instance,
many sonar units have scales
of 0to 60 feet, 60-120 feet and
0 to 120 feet. Often confused
with ranges.
RESOLUTION -- The abil-
ity of a sonar unit to separate
targets that are close together
Lowrance units typically have
resohition of six inches on
most of their units. This
allows you to see two fish that
are only six inches apart as
two separate targets on the
sonar display.
SENSITIVITY CONTROL
- This works like the volume
control on your radio. By
rotating the knob clockwise,
the receiver gain is increased,
and weaker signals are ampli-
fied and displayed.
When cruising, or at times
when just the bottom contour
is desired, the sensitivity set-
ting can be low. When looking
for fish, or small detail, turn
the sensitivity setting up very
high for the best results.
The sensitivity control has
no effect on the transmitter’s
power.
SUPPRESSOR CON-
TROL — Thisis used to reduce
interference or false signals.
Interference is generated by
electrical sources, such as the
boat's ignition system, trolling
motor, bilge pump, etc; from
air bubbles which pass under
the transducer from boat
strakes, rivets, or other hull
protrusions; and from water
on other objects striking the
transducer.
Set
1
363
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FURNITURE BY:
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OUTDOOR PRODUCTS, INE.
Detuze
Your kids’ clothes are
fishing
~ The makers of Wolverine®
you consider your
Most importantly, vour ac-
The correct application of
shoe care products is essential
for preserving your footgear
advise the makers of
Wolverine® and Wilderness®
footwear.
A SILICONE
leathers.
Rugged handsewn shoes, a
popular versatile style of
footwear this year, combine
fashion, function and com-
fort. Wolverine’s Wilderness®
handsewns, for example,
completely surround the foot
in a slipper or envelope of
leather. Handsewn construc-
tion provides comfort and
flexibility combined with the
popular “casual country”
lifestyle look.
An added quality feature,
such as Vibram® outsoles,
makes rugged handsewns an
excellent choice for walking in
camp or around town.
On trail, the lightweight
hiker style may best fit your
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needs for comfort and foot
protection. Whether booting
up on a chiily morning or day
hiking, features such as bal-
listic nylon uppers, "leather
overlays, and insole inserts
help provide the comfort and
protection your feet deserve
on vacation.
For those warm summer
days, a new style of sandal for
men and women may be your
answer for foot comfort at the
campsite or in town on a
warm afternoon. Wilderness®
sandals cradle the foot in a
molded leather lined unit bot-
tom. Quality leather strap-
ping provides that “casual
country” look so popular this
year.
caring for your investment in
quality footwear.
The Cleaning — On
smooth oil-tanned or silicone
leathers, wipe away’ dirt.
Knock off any caked-on mud.
For suede leathers such as
brushed pigskin, a stiff brush
can be used to remove dried
on dirt. Next, use a proper
shampoo to clean the leather
thoroughly.
Never use an animal fat or
petroleum based product on
silicone tanned leathers.
These products can interact
chemically with the leather
and destroy the silicone pro-
tection in the leather.
The Drying — I boots be-
comie wet in use or cleaning,
be sure to allow the leather to
dry naturally at room tem-
perature. Never dry boots
near sources of extreme heat
such as fireplaces. radiators
or ovens. Excessive heat drys
out the leathers natural oils
and could cause it to crack.
The Preserving —- After
cleaning, a quality boot or
leather dressing should be
applied to help preserve the
leather. Ask your dealer or
consult the care instructions
packed with your footwear by
the manufacturer.
A fluorocarbon rain and
stain protector is ideal for
brushed pigskin. A silicone
spray helps preserve silicone
tanned (waterproof) leathers.
How many hands does it
waterproof boots? According
to the makers of Wolverine®
brand boots, more than 100
pairs of hands work on a sin-
gle pair of waterproof boots
for one pair of feet.
LOOK FOR these quality.
features in waterproof boots.
1. Silicone-tanned leather.
2. Silastic sealed seams.
3. Flexible molded sole,
permanently bonded to the
upper. 4. Ensolite® insula-
tion in the vamp. 5. Double
Ensolite® insulation in the
quarter for comfort.
But the number of hands
isn’t what makes them water-
proof. It takes a lot more.
Wolverine experts suggest you
look for the following tech-
nologically designed features:
® Upper design. The upper
should be designed with a
minimum of seams. Seams
have stitches which can leak
unless they are sealed with
silastic adhesive. The upper
should also be made of sil-
icone tanned leather.
eo Soles. Even when ex-
posed to cold, soles should be
flexible. They must be molded
to the upper with a water tight
seal. Boots with welt con-
struction, for example, can
leak water where the sole is
attached to the upper.
® [nsulation. Insulation
helps keep the foot warm and
provides comfort. Ensolite®
is a quality insulation which
stands up to the coldest tem-
peratures, yet it does not add
unnecessary weight to the
boot.
® [eather linings. Quality
waterproof boots feature
leather linings for added foot
comfort. Vinyls will not
breathe and can cause exces-
sive foot perspiration and
heat build-up.
® Waterproof or water re-
sistant? Manufacturers con-
tinually test waterproof boot
constructions under labora-
tory conditions to make sure
both the style and materials
are waterproof. Wolverine®
for example. uses dynamic
waterproof tests. If the boot
leaks during 25,000 flexes in
water, that boot does not pass
Wolverine's waterproof test.
Ask your footwear dealer
what tests have been made on
his waterproof boots. A boot
can ‘have water resistant up-
pers but if the construction
does not keep out water, espe-
cially under flexing condi-
tions, then it wouldn't be con-
sidered “waterproof.”
£
MATCH YOUR I
Nearly everyone taking to
the outdoors for vacations
this year will be faced with the
decision on what equipment
to take along, including foot-
wear for comfort, protection
and vacation gearing up.
The makers of Wolverine®
boots and shoes offer the fol-
lowing hints on choosing the
right footwear for your out-
door active vacation this year.
® Don't overboor. Match
your selection of footwear to
your activities on your out-
door vacation,
For rugged climbing on
rocks or steep terrain, a heavy
duty hiking boot with rigid
Vibram® soles may be your
choice.
Quality features to look for
in a heavy duty hiking boot
include a quality pigskin
leather or cowhide upper.
padded leather collar, full
cushion insoles, leather quar-
ter linings, and a durable con-
struction such as Goodyear
welt construction.
Prices of $80 to $100 or
more are not uncommon for a
quality heavy duty hiking or
|
sport boot. Ihe price should
be thought of as an invest-
rent. Quality is worth the
bility and protection are at
stake
Unless you are hiking or
climbing on extremely rugged
outdoor terrain. a lighter
weight "boot may better fit
your needs.
® Lightweight is impor-
tant. It has been estimated
that an extra pound of foot-
wear translates into an extra
five pounds of weight on your
back. !
Lightweight footwear is
gaining in popularity among
outdoor vacationers because
it is important to have foot-
wear which is functional and
is appropriate for a variety of
outdoor pursuits.
Whether day hiking or
hunting, fabric upper boots
may be the appropriate
choice.
Features to look for in
lighter weight rugged foot-
wear include a durable one-
piece fabric upper
ballistic nylon.
such as
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