Humminbird RF40 User Manual
Thank You!
Thank you for purchasing an RF40
SmartCast wireless sonar sensor from
531298-1-A
Humminbird, America’s #1 Manufacturer of
quality consumer marine electronics.
Handle the RSS by the antenna tower
when it has been in water.
Use a heavy test line,
standard knots, and
tackle such as a swivel.
The second leader hole is for using the
RSS as a float. Connect a lighter weight
hook line to this hole. Do not overweight the hook line as this will submerge the RSS, causing signal loss.
Channel A and B RSS Units
There are two versions of the RSS that are available: Channel
A and Channel B.
When using the A or B version of the RSS, make sure to
select the appropriate channel for the RSS in the Channel
menu on your control head.
The A or B RSS option is intended to give you the flexibility
to change to a different RSS and channel if another angler is
using a SmartCast product in close proximity.
Note: Using two RSS units of the same channel in close proximity
(100 ft.) will result in severe interference that will prevent the product
from functioning correctly. Using a Channel A and a Channel B within
close proximity to one another will significantly reduce interference
but will not completely eliminate the interference.
Note: RSS units, regardless of Channel, either in close proximity to
each other or to other sonar devices (closer than 40 feet) can also
experience or cause sonar interference, which may result in erratic
depth readings.
Attaching the RSS
The line coming from your reel can be tied off to the front
hole in the Remote Sonar Sensor (RSS). If you wish to also
use the RSS as a conventional float, use the second hole to
attach your hook using a lighter weight line. A snag will
break the lighter line if you have to break free. Slip line techniques are not recommended because of the higher risk of
losing the RSS. If you do use the slip line method, use a
lighter weight line after the lower stop, enabling retrieval of
the RSS if the lower line with hook breaks away.
CAUTION: You will increase the possibility of breaking your line if you
use light test pound line on your reel. The RSS is positively buoyant
(is buoyant under its own weight plus .2 ounces of bait and lead
weight.) The maximum amount of weight for any attachment to the
RSS is approximately
weight of any hook, line, weight, swivel/snap swivel and bait that is
attached to the RSS. The RSS itself weighs 1 ounce, and therefore
light test line might break.
Store the RSS in a dry, non-metallic container, such as a tackle box,
in a separate compartment, and isolated from any metallic devices.
¹²₆₄
¹³₆₄
to
ounces, and includes the combined
WARNING! The bottom of the RSS should not be handled during sonar
operation, as this may cause physical discomfort and may result in
personal injury in the form of tissue damage. Handle the RSS only by
the antenna tower when it has been in the water.
WARNING! The RSS (Remote Sonar Sensor) is not intended for use by
children younger than 6 years old without adult supervision as the
RSS may represent a choking hazard to small children.
WARNING: This product contains lead, a chemical known to the State of
California to cause cancer and birth defects and other reproductive harm.
RSS Power
The Remote Sonar Sensor (RSS) has a separate, nonreplaceable lithium battery that has a shelf life of three years
and will last for approximately 400 hours of in-water use.
Discard the used RSS in compliance with local laws as you
would any electronic component or battery.
The RSS has contacts that perceive when the device is
immersed in the water. These contacts turn on the Sonar
Transmitter/Receiver and begin transmitting the sonar information via RF (radio transmission) to the display. The RSS
automatically stops using power a few seconds after being
pulled out of the water.
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