Garmin nuvi 680 Owner's Manual - Page 38

FM Transmitter Information, may notice this as you drive through - antenna

Page 38 highlights

Using the FM Transmitter FM Transmitter Information The FM transmitter is intended to transmit your nüvi's audio to your FM stereo. Do not adjust your FM settings while you are driving your vehicle. The distance between the vehicle power cable, the nüvi, and the FM stereo antenna may also affect the noise level. Vehicles with antennas located far away, such as a rear-mounted antenna, may experience more interference from outside noise sources than vehicles with front-mounted antennas. As you drive, you may notice changes in the background static even though there is no FM station using that channel. You may notice this as you drive through intersections where certain kinds of traffic lights or other municipal electronic systems are operating. You might also notice this effect when the terrain changes, allowing distant stations to be received by your car stereo that 30 were not received when you made your initial frequency selection. These and other sources of electrical interference may make it necessary to look for another frequency. nüvi 680 Owner's Manual

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nüvi 680 Owner’s Manual
U
SING
THE
FM T
RANSMITTER
FM Transmitter
Information
The FM transmitter is intended to
transmit your nüvi’s audio to your FM
stereo.
Do not adjust your FM settings while
you are driving your vehicle.
The distance between the vehicle power
cable, the nüvi, and the FM stereo
antenna may also affect the noise level.
Vehicles with antennas located far
away, such as a rear-mounted antenna,
may experience more interference from
outside noise sources than vehicles
with front-mounted antennas. As you
drive, you may notice changes in the
background static even though there is
no FM station using that channel. You
may notice this as you drive through
intersections where certain kinds
of traffic lights or other municipal
electronic systems are operating. You
might also notice this effect when the
terrain changes, allowing distant stations
to be received by your car stereo that
were not received when you made your
initial frequency selection. These and
other sources of electrical interference
may make it necessary to look for
another frequency.