Antennas; Cb.antenna; Marine.installation; Ignition Noise Interference - Cobra 29 LX LE How To Use Manual

Antennas

CB Antenna
CB Antenna
Since.the.maximum.allowable.power.output.of.
the.transmitter.is.limited.by.the.FCC,.the.antenna.
is.critical.in.affecting.transmission.distance..Only.a.
properly.matched.antenna.system.will.allow.maxi-
Note
mum.power.output..Cobra.loaded.type.antenna.
For optimum performance in
models.are.highly.recommended.for.most.instal-
passenger cars the ideal anten-
lations..For models with Weather Feature (WX),
na location is on the center of
a Dual Band (Center Load/Base Load) antenna
the roof. Second choice is on the
is recommended..Consult.your.Cobra.dealer.for.
center of the trunk.
further.details,.or.call.773.889.3087.and.speak.to.a.
Cobra.representative..
Note
Because many newer trucks
feature fiberglass door skins,
the outside mirror must be
grounded to the chassis via a
ground strap, if the antenna is
mounted on the mirror bracket.
Note
3-way Combination Antennas 1
. . A .standard.antenna.connector.is.provided..
are also available which allow
on.the.transceiver.for.easy.connection.
operation of all three bands
(AM-FM & CB), using a single
Marine Installation
antenna. However, this type
The.transceiver.will.not.operate.at.maximum..
of antenna usually results in
efficiency.in.a.boat.without.a.ground.plate,.
less than normal transmit and
(unless.it.has.a.steel.hull)..Before.attempting.
receive range when compared
installation.,.consult.your.dealer.for.information.
to a standard-type "Single
regarding.an.adequate.grounding.system.and.
Band" CB antenna. Call 773-
prevention.of.electrolysis.between.fittings.in.the.
889-3087 for further informa-
hull.and.water..
tion.
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Ignition Noise Interference

Use.of.a.mobile.receiver.at.low.signal.levels.is.
normally.limited.by.the.presence.of.electrical.
noise..The.primary.source.of.noise.in.automo-
biles.is.from.the.alternator.and.ignition.system..
Typically,.when.signal.level.is.adequate,.the.back-
ground.noise.does.not.present.a.serious.problem..
Also,.when.extremely.low.level.signals.are.being.
received,.the.transceiver.may.be.operated.with.
the.vehicle's.engine.turned.off..The.unit.requires.
very.little.current.and.therefore.will.not.signifi-
cantly.discharge.the.vehicle's.battery.
Even.though.the.Cobra.29.LX.LE.has.an.auto-
matic.noise.limiter,.in.some.installations.ignition.
interference.may.be.high.enough.to.make.good.
communications.impossible..Many.possibilities.
exist.and.variations.between.vehicles.require..
different.solutions..Consult.your.Cobra.dealer.or.
a.2-way.radio.technician.for.help.in.locating.the.
source.of.a.severe.noise.
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