Humminbird RF25 User Manual

Activating the Rod Mounted Display Battery

When you first use the RF25 SmartCast®Rod Mounted
Display you will need to activate the display battery. Use a
coin to remove the battery door on the back of the Rod
Mounted Display, then remove the plastic strip located in
the battery compartment.

Make sure that the O-ring in the battery compartment is
present, positioned correctly in the grooves, and free of
debris before re-installing the battery door.

NOTE: Replace the Rod Mounted Display battery only with a 2450
CR-type battery.These batteries can be purchased from most electronics
retailers.

NOTE: Under normal use you should expect the life of the display battery
to last up to 40 hours of operation. Operation in cold weather will
significantly reduce the life of the battery.

NOTE: Your RF25 will start up in Watch mode after the battery is installed
initially. See Powering the Display ON and OFF and Watch Mode for more
information.

Attaching the Rod Mount Display

1. Determine which of the three Sleeves will fit onto
your rod. Each Sleeve will fit a variety of rod sizes,
but Sleeve A fits rods closest to

¹₂

" diameter, B fits

rods closest to

⁷₁₆

" diameter, while C fits rods

closest to

³₈

" diameter.

2. Once you have selected a specific Sleeve, attach it
to the Rod Mounted Display, then slip the
assembled unit onto your rod and tighten the
straps. Make sure that the letter on the Sleeve is
visible once the unit is mounted on the rod, so that
the Rod Mounted Display and the Sleeve are both
on the top side of the rod when you are fishing.

NOTE: You should remove the RF25 from your rod and store it when you
are not actively using it. See Maintenance for important storage
information.

NOTE: Keep the unused Sleeves in case you get a rod of a different size.
If you need a replacement Sleeve, you may order it from our website,
www.humminbird.com, or from participating retailers and dealers.

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 also wish
to 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 0.2 ounces or 5.7 g of bait and lead
weight.) The maximum amount of weight for any attachment to the
RSS™ is approximately

¹²₆₄

to

¹³₆₄

ounces (5.3 g to 5.8 g), and includes
the combined weight of any hook, line, weight, swivel/snap swivel and
bait that is attached to the RSS™. The RSS™ itself weighs 1 ounce
(28 g), and therefore light test line might break.

NOTE: Store the RSS™ in a dry, non-metallic container, such as a tackle
box, in a separate compartment, and isolated from any metallic devices.

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 500 hours of in-water
use (when the nighttime LED is turned off). Discard the
used RSS™ in compliance with local laws as you would
any electronic component or battery.

Use a heavy test line, standard
knots, and tackle such as a swivel.

Handle the

RSSTMby the antenna tower

when it has been in water.

The second leader hole is for using the RSSTMas a
float. Connect a lighter weight hook line to this hole.
Do not over-weight the hook line as this will
submerge the RSS

TM

, causing signal loss.

Sleeve Mount

Assembled

Rod Mounted Display

The programming mode allows you to:

• turn on the blinking light

• switch the Advanced RSS™ Channel from A to B.

The SmartCast

®

Control Head temperature readout
provides user feedback to help you make the correct
selections. The temperature readout will change on the
Control Head to 40°F (4°C), 45°F (7°C), 50°F (9°C) or
55°F (12°C) to signify the following settings.

NOTE: If the temperature readout is set for degrees Celsius then the
temperature readout will change on the Control Head to 4, 7, 9 or 12 to
signify the following settings:

Light setting:

Temp changes to… Means that…

40°F (4°C) Blinking light is OFF (factory default)

45°F (7°C) Blinking light is ON (but only blinks

when the Advanced RSS™ is in the
water)

Channel setting:

Temp changes to… Means that…

50°F (9°C) RSS™ is set to CHANNEL A

(factory default)

55°F (12°C) RSS™ is set to CHANNEL B

IMPORTANT: The SmartCast®Control Head must be turned on and the
CHANNEL SELECT SetUp menu on the Control Head must be set to
Channel A (even if the RSS™ is set to Channel B) before you can see
the feedback on the Control Head temperature readout.

NOTE: The Advanced RSS™ programming mode will time out after 20
seconds of no user activity, display the Start-Up screen, and return the
RSS™ to normal operation.

NOTE: If the temperature display returns to a normal reading, or the
Start-Up screen appears on the display, you are no longer in
programming mode.

How the Wet Switch™ Works

In the following sections, you will use the wet switch
contacts on the bottom of the Advanced RSS™ to enter
programming mode and to change the Light and Channel
settings. Before you try these procedures for the first time,
please read through this section to familiarize yourself with
the way the Wet Switch™ works.

Your finger should be moist, but not dripping, before you
touch the Wet Switch™. You can achieve the correct
dampness by dipping your finger in water, then dabbing
your finger twice on a towel.

A “touch” means touching both wet switch contacts at the
same time with your moistened finger, using medium
pressure. The time between touches needs to be one
second or less.

NOTE: Your finger must make contact with both of the wet switch pins
simultaneously in order to tap them successfully.

See the procedures that follow for specific instructions
on turning the light on or off or changing the channel
from A to B.

Turning on the Advanced RSS™ Blinking Light

To turn on the blinking nighttime fishing light:

1. Wet your finger and tap the wet switch on the
Advanced RSS™ three times (the time between
touches needs to be one second or less) to enter
the Light programming mode. The temperature
reading on the Control Head will change to show
a temperature reading of 40°F (4°C) (blinking
light OFF).

Temperature of 40
Means LED is OFF

Temperature Setting of 45

Means LED is On

The RSS™ will turn on its Sonar Transmitter/Receiver
automatically when it is immersed in the water. Once
immersed, the RSS™ will begin transmitting the sonar
information via radio frequency (RF) to the Rod Mounted
Display.The RSS™ automatically stops using power a few
seconds after being pulled out of the water.

WARNING! Do not place the RSS™ in a wet area when not in use as this
will turn on the RSS™ and shorten its usable life. Store the RSS™ in a dry
area when not in use to conserve power. Never place the RSS™ in a wet
area of a boat or on a metal surface that could accidentally power it on.

NOTE: If the RSS™ was used in salt water, rinse it with fresh water
before storing it.

What’s On the Display

The SmartCast®displays
underwater information in an
easy to understand format.
The top of the display
corresponds to the water
surface, and the bottom of
the display corresponds to

the selected Depth Range
(see Depth Range). The display varies as the area under
the RSS™ changes.

Underwater conditions vary greatly, so some experience
and interpretation is needed to realize all the benefits of
the SmartCast®– use the diagram as a guide to the most
common conditions and practice using the SmartCast

®

over known bottom types.

The SmartCast®can also display the time and date.
Press the RIGHT Cursor button to momentarily view the
time and date.

Powering the Display
ON and OFF

NOTE:

If you have just
taken the RF25 out of the
box, see

Activating the Rod

Mounted Display Battery

.

Your RF25 has three power states:

• Off - Display is turned off

• Normal Fishing Mode - used for fishing

• Watch Mode - low-power, continuous time display.

To turn the RF25 on, press the POWER-MENU button; the
Start-Up screen will appear, then automatically change to
Normal Fishing mode if you take no further action. To turn
the RF25 off, press the POWER-MENU button until you
hear a beep (indicating that you are in Watch mode), then
press the RIGHT Cursor button to shut down the display.

NOTE: If you leave the RF25 in
Normal Fishing mode for more
than 10 minutes, the unit will
timeout automatically and enter
Watch mode in order to save
power.

Watch Mode

Watch mode provides a continuous time display. To enter
power-saving Watch mode, start from Normal Fishing
mode, and press and hold the POWER-MENU button until
you hear a beep, then release. The time and date will be
continuously displayed, indicating that the RF25 is in
Watch mode. You can press the POWER-MENU button
again to return to Normal Fishing mode.

Start-Up in Normal Fishing Mode

After pressing the POWER-MENU
button to turn on the Rod Mounted
Display, you will see the Start-Up
screen. The Start-Up screen will
disappear automatically after two

seconds have passed, without further
action from you. In Fishing mode, the screen will either
display sonar information or the RF25 SmartCast®screen
will appear, indicating that no sonar information is
currently available.

When you have powered on the Rod

Mounted Display and have cast the

RSS™ into the water, returned sonar

data will start to be displayed. A vertical

line will appear first, followed by a

bottom depiction and possible fish

locations if fish are sensed.

Time

Date

POWER­MENU
Button

Display

RIGHT
Cursor
Button

LEFT Cursor
Button

Present

Depth

Temp

Bottom

Fish
Icon

Depth
Range

Start-Up in Simulator Mode

To enter Simulator mode, press the
POWER-MENU button to turn on the
RF25, wait until you see the Start-up
screen, then quickly press the RIGHT
Cursor Button. Once you are in Simulator

mode, the display will show the word
Simulate, and then, after two seconds, will show simulated
data. To exit Simulator mode,you must power down the RF25.

Start-Up in Setup Mode

Use Setup to set the Time and Date.

To enter Setup mode, press the

POWER-MENU button to turn on the

RF25, wait until you see the Start-Up

Screen, then quickly press the RIGHT

Cursor Button twice. Once you are in
Setup mode, the display will briefly flash the word Setup,
then show the Time and Date.

Changing the Time and Date

To change the Time and Date, enter Setup Mode (see
Start-Up in Setup Mode). When you see the Time and
Date display, the Hour digit will flash first, indicating that
you can change the hour. Once you change the hour,
you must perform all of the following steps to get to the
end of Setup mode.

NOTE: The flashing numeral or digit is the one that can be edited.

1. When you first enter Setup mode, press the RIGHT or
LEFT Cursor buttons repeatedly to change the hour.
Make sure that you have selected the correct hour for
the time of day (AM or PM). When the desired hour is
displayed, press the POWER-MENU button to begin
editing the minutes.

2. Press the RIGHT or LEFT Cursor buttons repeatedly to
change the Minutes. When the desired minutes are
displayed, press the POWER-MENU button to begin
editing the month.

3. Press the RIGHT or LEFT Cursor buttons repeatedly to
change the month. When the desired month is
displayed, press the POWER-MENU button to begin
editing the day.

4. Press the RIGHT or LEFT Cursor buttons repeatedly to
change the day. When the desired day is displayed,
press the POWER-MENU button to begin editing the
year.

5. Press the RIGHT or LEFT Cursor buttons repeatedly to
change the year. When the desired year is displayed,
press the POWER-MENU button to exit Setup Mode.

Activating the Backlight

Use the backlight for night fishing or low light conditions.

NOTE: The display contrast may require adjustment for optimal viewing in
low light conditions when the backlight is activated.

Press the LEFT Cursor Button to activate the backlight.
The backlight will automatically turn off after
approximately 3 seconds.

NOTE: The backlight can only be activated if the LEFT Cursor Button is
not currently being used (i.e. being used to alter a menu setting).

Viewing the Time

Pressing the RIGHT Cursor Button will display the Time
and Date. If the RF25 is currently scrolling sonar
information, the Time and Date will be displayed, and then
the unit will automatically switch back to Sonar mode. If
the RF25 is waiting for sonar information, the Time and
Date will be displayed when the RIGHT cursor button is
pressed, and then the unit will automatically switch back
to waiting for sonar information.

Menu Features

A simple menu system accesses the adjustable features of
the SmartCast

®

RF25. To activate the menu system, press
the POWER-MENU button; the first time you do this after
power up, the Sensitivity menu choice will appear. Once the
RF25 has been powered on, pressing the POWER-MENU
button will display the last menu choice viewed. Press the
POWER-MENU button repeatedly to access other
SmartCast®menu choices, one at a time. When a menu
choice is on the display, use the RIGHT and LEFT Cursor
buttons to adjust the menu settings. Menus are automatically
removed from the display after several seconds.

Sensitivity

Press the POWER-MENU button
until SENSITIVITY appears. Select a higher number to show
weaker sonar returns on the display, or a lower number
to remove clutter from the display. Adjusting Sensitivity
also affects how sonar returns are identified as Fish ID
Symbols - more fish will be detected at the highest setting

of 10, fewer at the lowest setting of 0. (0 -10, Default = 5)

Depth Range

Press the POWER-MENU button
until DEPTH RANGE appears. Auto is the default setting.
When in automatic, the lower range will be adjusted by the
unit to follow the bottom. Selecting a manual depth range
locks it to the setting you select. (Auto, 10, 15, 20,30, 60
or 120 feet [3, 5, 6, 10, 20, or 40 meters], Default = Auto)

NOTE: In manual operation, if the water depth is greater than the depth
range setting, the bottom will not be visible on the display. Select Auto to
return to automatic operation.

Depth scale changes or signal loss
will cause lines with missing detail
and/or abrupt changes in the
graphed bottom. When the Depth
Range is set to Auto, the depth is set
to keep the bottom in the lower third
of the screen. The screen image

jump shown here is due to an
automatic change in depth. New returns graphed at a
different scale will not match up with the historic data
already graphed at a higher or lower scale. Vertical lines
can also occur as the radio signal from the RSS™ is lost
and then regained in rough water conditions.

Fish Alarm

Press the POWER-MENU button
until FISH ALARM appears. Select Off for no fish alarm, or
On for fish alarm. Fish ID must be set to On for Fish Alarm
to work. (Off,On, Default = Off)

Fish ID

Press the POWER-MENU button
until FISH ID appears. Select
either Off to view “raw” sonar
returns, or On to view fish
symbols. Fish ID uses advanced
signal processing to interpret sonar returns and will
display a Fish Symbol when very selective requirements
are met. Fish Alarm does not sound if Fish ID is turned off.
(On, Off, Default = On)

Channel

Press the POWER-MENU button
until CHANNEL appears. Select either A or B to match
your RSS™. See Channel A and B RSS™ Units.
(A, B, Default = A)

Contrast

Press the POWER-MENU button
until CONTRAST appears. Select a setting from
1 through 10. (1 to 10, Default = 5)

Channel A and B RSS™ Units

Your SmartCast®unit comes with an Advanced RSS™.This
Advanced RSS™ may be programmed to either Channel A
or Channel B. This A/B Channel option gives you the
flexibility to switch to a different channel if another angler is
using a SmartCast®unit within 150 feet of your RSS™ to
reduce possible interference. See Changing the Channel on
the Advanced RSS™ for details on selecting either Channel
A or Channel B.

NOTE: RSS™ units, regardless of channel, may generate erratic depth
readings as a result of sonar interference when used in close proximity
(closer than 40 feet) to each other or to other sonar devices.

Understanding the Advanced RSS™

The Advanced RSS™ provides the following functionality:

• Water Surface Temperature

• Blinking Light for nighttime use

• A/B Channel Select.

Water temperature will be displayed automatically on
the screen.

You must manually program the Advanced RSS™ in
order to turn the light on or off or to change the RSS™
channel setting to A or B.

Default settings on new products are Light = OFF and
Channel = A.

RSS™ Programming Mode

You may change the light setting or the channel type on
the Advanced RSS™ using a programming mode that is
accessed by touching the wet switch contacts on the
bottom of the RSS™.

NOTE: Please read this and the next section BEFORE you try to program
the Advanced RSS™ using the wet switch contacts. Specific step-by­step procedures to turn on the light and to change the channel follow this
section. You will find it easier to perform these steps once you have
grasped the way the programming mode works.

Fish ID

Raw Sonar

Thank You!

Thank you for choosing Humminbird®, America's #1
name in fishfinders. Humminbird®has built its
reputation by designing and manufacturing top­quality, thoroughly reliable marine equipment. Your
Humminbird®is designed for trouble-free use in even
the harshest marine environment. In the unlikely event
that your Humminbird®does require repairs, we offer
an exclusive Service Policy-free of charge during the
first six months after purchase, and available at a
reasonable rate after the six month period. For
complete details, see the warranty information at the
end of this manual. We encourage you to read this
operations manual carefully in order to get the full
benefit from all the features and applications of your
Humminbird®product.

The RF25 SmartCast®product should have:

• One Advanced Remote Sonar Sensor - RSS™

• One Rod Mounted Display with installed 2450 CR
battery

• One extra 2450 CR battery

• Three different Mounting Sleeves: A, B and C

• This RF25 SmartCast®Operations Manual.

If any of these components are missing, please contact
our Customer Resource Center at either 1-800-633­1468 or visit our website at www.humminbird.com.

NOTE: The RF25 also comes in an International version that is
CE-compliant.

WARNING! Disassembly and repair of this electronic unit should only
be performed by authorized service personnel. Any modification of the
serial number or attempt to repair the original equipment or accessories
by unauthorized individuals will void the warranty. Handling and/or
opening this unit may result in exposure to lead, in the form of solder.

WARNING! This product contains lead, a chemical known to the state
of California to cause cancer,birth defects and other reproductive harm.

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.

Using the SmartCast

®

The SmartCast®is a first­of-its-kind wireless fish­finder that is incredibly
easy to use. Simply attach
the Rod Mounted Display
to your rod, then attach
the Remote Sonar Sensor

(RSS™) to the end of
your fishing line and cast it into the water as you would
a normal float or lure. Then power on the SmartCast

®

RF25 and you are ready to fish. The SmartCast®system
uses sonar technology to send sound waves from the
RSS™ into the water. The returned “echoes” are
transmitted with wireless technology to the RF25 and
plotted on the display. New information appears on the
right. As this information moves to the left a very
accurate picture of the underwater world is created,
including objects such as the bottom, fish, and
structures, as well as the depth of the bottom.

NOTE: The RF25 display is designed to be used with polarized
sunglasses only when the user is looking straight at the screen. You
may not be able to read the display from other angles when wearing
polarized sunglasses.

WARNING! The electronic parts in the Remote Sonar Sensor (RSS™) are
made to withstand use when casting into water.Because shock from abrupt
contact with rocks can damage your RSS™, we do NOT recommend using
your RSS™ in water that is less than one foot (0.3 m) deep.

Operational Modes

The RSS™ can be used in two distinct ways:

Sonar Graph: The RSS™can be used to create a sonar
graph of the bottom. Cast the RSS™ into the water
beyond an area of interest, then reel in the RSS™ at a
slow and steady rate The digital display will provide
precise information for bottom contour, depth and
structure below the RSS™. Fish and bait fish will be
displayed when detected.

Stationary Float: The RSS™ can be used as a float in
a stationary location to monitor the area below, giving
you a live update as fish approach your bait.

To scan an area,

cast and then reel

in at a slow, steady

rate with your rod

tip up.

531344-1_A

2. To change the setting to 45°F (7°C) (blinking
light ON) touch and release the wet switch
contacts once more. Wait two seconds and then
confirm that the temperature reading on the
Control Head has changed to 45°F (7°C). Single
touches will toggle the setting between 40°F
(4°C) and 45°F (7°C).

NOTE: When the LED is set to ON it will flash every four seconds when
the RSS™ is in operation (i.e. when the wet switch is submerged).
Even when the LED is set to ON, the LED will not flash unless the wet
switch is activated. If you want to test the RSS™ to make sure the LED
is set to ON before using the RSS™, wet your finger and hold it on the
wet switch; if the LED is set to ON, the LED will begin to flash.

NOTE: Repeat steps 1 and 2 to turn off the LED when finished with
night fishing.

3. Once you have made your selection you can
either wait 20 seconds for programming mode to
time out (the Start-Up screen will appear on the
Control Head display), or continue immediately to
the next procedure to change the channel.

Changing the Channel on the Advanced RSS™

To change the channel type on the Advanced RSS™:

1. From the Light programming mode (see

Turning on the Advanced RSS™ Blinking
Light), touch and release the wet switch

contacts twice more with your moist finger to
change from the Light programming mode to
the Channel programming mode. The
temperature reading on the Control Head will
change to show a temperature reading of 50°F
(9°C) (channel set to A).

2. To change the setting to 55°F (12°C) (channel
set to B) touch and release the wet switch
contacts once more. Wait two seconds and
then confirm that the temperature reading on
the Control Head has changed to 55°F (12°C).
Single touches will toggle the setting between
50°F (9°C) and 55°F (12°C).

3. Once you have made your selection, wait 20
seconds for programming mode to time out (the
Start-Up screen will appear on the Control
Head).

4. Use the SetUp Channel Select menu on the
Control Head to switch the software to match
the new channel designation on the Advanced
RSS™. See Channel Select (SetUp Menu) for
more information.

CAUTION: Make sure that you change the Channel Selection on the
Control Head to match the new Advanced RSS™ Channel before
using the Advanced RSS™.

Using a First Generation RSS™

First generation RSS™ units still sold with other
SmartCast

®

products come in two versions, Channel A
and Channel B (RF40A and RF40B), and are both
compatible with the RF25.

NOTE: When using either an RF40A or RF40B RSS™ with the RF25,
you will not get water temperature and you will not be able to turn on
the LED or change the channel on the RSS™. You will still be able to
read digital depth and bottom contour information.

NOTE: When using an RF40A or RF40B RSS™, make sure to select
the matching channel from the CHANNEL SELECT menu on the
Control Head.

Maintenance

Your

SmartCast®is designed to provide years of
trouble-free operation with virtually no maintenance.
Follow these simple procedures to ensure your
SmartCast®continues to deliver top performance.

WARNING! Never leave the RF25 SmartCast®product in a closed
car or trunk - the extremely high temperatures generated in hot
weather can damage the electronics.

Rod Mounted Display Maintenance: If the Rod
Mounted Display comes into contact with salt spray,
wipe the affected surfaces with a cloth dampened
with fresh water. When cleaning the protective lens
on the display, use a chamois and non-abrasive, mild
cleaner. Do not wipe while dirt or grease is on the
lens. Be careful to avoid scratching the lens. Do not
use a chemical glass cleaner on the lens, as this may
cause it to crack.

Temperature of 50 Means Channel

is Set to A

Temperature of 55 Means Channel

is Set to B

Do not store the Rod Mounted Display on your fishing rod,
in direct sunlight, or in extreme temperatures. When you
are not fishing for extended periods, remove the rod
mount from the rod and store it in a dry, cool place such
as your tackle box, away from extreme temperatures and
ultraviolet light.

RSS™ Maintenance: After using the RSS™ in salt
water, wipe the affected surfaces with a cloth dampened
with fresh water. The RSS™ Wet Switch™ pins must be
rinsed with fresh water after exposure to salt water to
prevent corrosion.

If your RSS™ remains out of the water for a long period
of time, it may take some time to wet it when returned to
the water. Small air bubbles can cling to the surface of the
RSS™ and interfere with proper operation. Wipe the face
of the RSS™ with a wet cloth to remove them.

Troubleshooting

Do not attempt to repair the RF25 Rod Mounted Display
or RSS™ yourself. There are no user serviceable parts
inside, and special tools and techniques are required for
assembly to ensure the waterproof integrity of the
housings. Repairs should be performed only by
authorized Humminbird®technicians.

Many requests for repair received by Humminbird

®

involve units that do not actually need repair. These units
are returned “no problem found.” If you have a problem
with your SmartCast®, use the following troubleshooting
guide before calling the Customer Resource Center or
sending your unit in for repair.

1. The SmartCast®loses signal.

If the SmartCast®is not able to get
an RF signal from the RSS™, the
display will stop updating (the screen
will freeze) and the RF25 SmartCast

®

screen will be displayed after several

seconds. Whenever reception is lost
or the RSS™ emerges from the water for more than a
few seconds, the RF25 SmartCast

®

screen will be
displayed until the RSS™ is placed back in the water
and reception is regained.

• The SmartCast

®

system is a line-of-sight wireless
product. If objects are placed between the RSS™ and
the Rod Mounted Display, the reception may be lost.

• The RF25 depth range is 2 to 120 feet (0.6 to 35
meters). Erratic readings may occur in water that is
shallower than 2 feet (0.6 m). In addition, because of
the nature of sonar, this product is not intended for
use in swimming pools or small enclosed bodies of
water.

• Reeling the RSS™ too fast can cause loss of signal
and the screen will freeze.

• Check the buoyant balance between the RSS™ and
your tackle; over 0.2 ounce (5.7 grams) will
submerge the RSS™, causing signal loss.

• The RF25 may not obtain its maximum RF distance of
150 feet (45 meters) unless the water is smooth.
Waves or chop may reduce the RF range significantly.

NOTE: Retrieving the RSS™ too rapidly, or the repetitive rocking motion
of rough water, can result in loss or distortion of the bottom detail on the
display. For best bottom detail, perform a smooth and slow reel-in with
constant speed and the rod tip up (holding the rod tip low or using a
heavy line may cause the RSS™ to submerge and momentarily lose
radio contact). The RSS™ has a maximum transmit range of 150 feet
(45 meters). If the unit is cast or drifts more than 150 feet (45 meters)
away from the receiver, the signal may be inconsistent or lost.

2. Nothing happens when I turn the Rod Mounted
Display on.

Check the battery position and make sure that the
battery door is properly closed. Also, make sure that
you have removed the plastic strip that is in the battery
compartment when it is new.

If this doesn’t help, replace the battery. After replacing
the battery, if the unit still doesn’t power up, remove the
battery door again and re-install.

If sonar performance becomes weak (i.e., there
are bottom gaps or "0" depth readings) the
bottom of the RSS™ needs to be cleaned with
a drop or two of a 5 to 10 percent solution of
liquid dish-washing detergent and water. Use
approximately one tablespoon (15 ml)
detergent to 8 ounces (237 ml) of water to
remove oils from the face of the RSS™, then
wipe with a damp cloth.

3. When in very shallow water, I get gaps in the
bottom reading and inconsistent digital depth
indication.

The SmartCast®will work reliably in water 2 feet (0.6
meter) or deeper. The depth is measured from the
RSS™.

4. The display begins to fade out. Images are not as
sharp as normal.

Check the battery position and make sure that the
battery door is properly closed. Also, make sure that
you have removed the plastic strip that is located in the
battery compartment when it is new.

If this doesn’t help, replace the battery. After replacing
the battery, if the unit still has a faded display, remove
the battery door again and re-install.

5. The display shows many black dots at high
sensitivity settings.

You are seeing noise or interference caused by one of
several sources. Noise can be caused by other
electronic devices. Turn off any nearby electronics and
see if the problem goes away. Other sonar devices or
any electronic device operating in the 900 mHz range
(in the 400 mHz range for International versions) could
cause interference with your SmartCast®.

6. The display shows fluctuating depth readings
and excessive clutter, including vertical bars
that may be drawn on top of fish icons.

The SmartCast®system comes with the capability to
receive separate signals from a Channel A RSS™ or a
Channel B RSS™. Two A- or B-type RSS™ units used
simultaneously, as well as one A- and one B-type
RSS™ unit used simultaneously, can cause RF
interference between each other.

7. The display jumps and the bottom has an abrupt
change; sometimes a vertical line is missing or
a black line from top to bottom is displayed.

This display image jump is due to an automatic change
in depth. New returns graphed at a different scale will
not match up with the historic data already graphed at
a higher or lower scale. Vertical lines can also occur as
the radio signal from the RSS™ is lost and then
regained in rough water conditions.

Humminbird®6 Month Limited Warranty

We warrant the original retail purchaser that products
made by Humminbird®have been manufactured free
from defects in materials and workmanship. This
warranty is effective for 6 months from the date of
original retail purchase. Humminbird®products found
to be defective and covered by this warranty will be
replaced or repaired free of charge at Humminbird

®

option and returned to the customer freight prepaid.
Humminbird

®

sole responsibility under this warranty is
limited to the repair or replacement of a product that
has been deemed defective by Humminbird®.
Humminbird®is not responsible for charges connected
with the removal of such product or reinstallation of
replaced or repaired parts.

This warranty does not apply to a product that has
been:

• Improperly installed;

• Used in an installation other than that
recommended in the product installation and
operation instructions;

• Damaged or has failed because of an accident or
abnormal operation;

• Repaired or modified by entities other than
Humminbird

®

.

Please retain your original receipt as a proof of the
purchase date. This will be required for in-warranty
service.

THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY OTHER
WARRANTIES, OBLIGATIONS OR LIABILITIES ON THE
PART OF HUMMINBIRD®AND WILL BE THE
CUSTOMER'S EXCLUSIVE REMEDY, EXCEPT FOR ANY
APPLICABLE IMPLIED WARRANTIES UNDER STATE
LAW WHICH ARE HEREBY LIMITED IN DURATION TO SIX
MONTHS FROM THE DATE OF ORIGINAL PURCHASE. IN
NO EVENT WILL HUMMINBIRD®BE LIABLE FOR ANY
INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
BREACH OF ANY EXPRESS OR IMPLIED WARRANTY
RELATING TO THE PRODUCTS.

Some states do not allow limitations on an implied
warranty, or the exclusion of incidental or
consequential damages, so the above exclusions may
not apply to you. You may also have other rights, which
vary from state to state.

International Purchases

A separate warranty is provided by international
distributors for units purchased outside the United
States. This warranty is included by your local
distributor and this distributor maintains local service
for your unit. Warranties are only valid in the area of
intended distribution. Units purchased in the United
States or Canada must be returned to our factory in
the United States for service.

Humminbird®Service Policy

Even though you'll probably never need to take
advantage of our incredible service policy, it's good to
know that we back our products this confidently. We
do it because you deserve the best. We will make
every effort to repair your unit within three business
days from the receipt of your unit at our factory. This
does not include shipping time to and from our factory.
Units received on Friday are typically shipped by the
following Wednesday, units received Monday are
typically shipped by Thursday, etc.

All repair work is performed by factory-trained
technicians to meet exacting factory specifications.
Factory-serviced units go through the same rigorous
testing and quality control inspections as new
production units.

After the original warranty period, a standard flat rate
service charge will be assessed for each repair
(physical damage and missing parts are not included).
Any repairs made after the original warranty will be
warranted for an additional 90 days after service has
been performed by our factory technicians. You can
contact our Customer Resource Center or visit our
website to verify the flat rate repair fee for your
product (visit the Product Support section):

http://www.humminbird.com

We reserve the right to deem any product
unserviceable when replacement parts are no longer
available or impossible to obtain. This Service Policy is
valid in the United States only. This applies only to
Humminbird®products returned to our factory in
Eufaula, Alabama. This Service Policy is subject to
change without notice.

Returning Your Unit for Service

Before sending your unit in for repair, please contact
the factory, either by phone or by email, to obtain a
Repair Authorization Number for your unit. Please
have your product model name and serial number
available before calling the factory. If you contact the
factory by e-mail, please include your product model
name and serial number in the e-mail, and use
Request for Repair Authorization Number for your e­mail subject header. You should include your
Repair Authorization Number in all subsequent
communications about your unit.

For IN-WARRANTY service, complete the following steps:

• Obtain a Repair Authorization Number from the
Humminbird

®

Customer Resource Center.

• Tag product with your customer name, street
address, phone number and your assigned Repair
Authorization Number.

• Include a brief written description of the problem.

• Include a copy of your receipt (to show proof and
date of purchase).

• Return product freight prepaid to Humminbird

®

,

using an insured carrier with delivery confirmation.

For OUT-OF-WARRANTY service, complete the following steps:

• Obtain a Repair Authorization Number from the
Humminbird®Customer Resource Center.

• Include payment in the form of credit card number
and expiration date, money order or personal
check. Please do not send cash.

• Tag product with your customer name, street
address, phone number and your assigned Repair
Authorization Number.

• Include a brief written description of the problem.

• Return product freight prepaid to Humminbird®,
using an insured carrier with delivery confirmation.

SPECIFICATIONS

Rod Mounted Display Specifications:

Power Requirement ....................One 2450 CR Battery

Display Matrix ......................................48 X 32 Pixels

Display Type ........................................................ STN

RSS

™

Specifications:

Power Requirement ....................One non-replaceable

Lithium RSS

TM

Battery

Battery Expected Life ........ 3 years (approximately 500

hours of in-water use)

Depth Capability .......... 2 - 120 feet (0.6 - 35 meters)

Sonar Coverage .................................. 90° @-10 dB*

Sonar Operating Frequency .......................... 125 kHz

Operational Radio Frequency .................... 916.5 mHz

(433.92 mHz International)

Operational Range ...................... 150 feet (45 meters)

* Area of bottom coverage equals twice the current depth.

Contact Humminbird

®

Your Humminbird®accessory is designed for trouble-free operation

and is backed by a six-month warranty.

If you have any questions, contact our

Humminbird®Customer Resource Center:

By Telephone

(Monday - Friday 8:00 a.m. to 4:30 p.m. Central Standard Time):

1-800-633-1468

By e-mail

(typically we respond to your e-mail within three business days):

[e-mail]

For direct shipping, our address is:

Humminbird

Service Department

108 Maple Lane

Eufaula, AL 36027 USA

Humminbird

®

This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:

(1) This device may not cause harmful interference and;
(2) This device must accept any interference received, including

interference that may cause undesired operation.

CAUTION: Changes or modifications not expressly approved by
Humminbird

®

could void the user’s authority to operate the device.

FCC ID: ICLSMC1