Home Decorators Collection ALTURA II User manual

Questions, problems, missing parts? Before returning to the store,
call Home Decorators Collection Customer Service
8 a.m. - 6 p.m., EST, Monday-Friday.
1-800-986-3460
HOMEDEPOT.COM/HOMEDECORATORS
THANK YOU
We appreciate the trust and condence you have placed in Home Decorators Collection through the purchase of this ceiling fan. We strive
to continually create quality products designed to enhance your home. Visit us online to see our full line of products available for your home
improvement needs. Thank you for choosing Home Decorators Collection!
Item #XXX XXX
Model #94468
UL Model #68-ATR
USE AND CARE GUIDE
ALTURA II 68-INCH CEILING FAN
P1

2
Table of Contents ................................................................ 2
Safety Information............................................................... 2
Warranty ............................................................................... 3
Pre-Installation .................................................................... 3
Installation............................................................................ 6
Assembly.............................................................................. 7
Operation ........................................................................... 14
Care and Cleaning............................................................. 16
Troubleshooting................................................................. 16
1. To reduce the risk of electric shock, ensure the electricity has
been turned off at the circuit breaker or fuse box before you
begin.
2. All wiring must be in accordance with the National Electrical
Code ANSI/NFPA 70-1999 and local electrical codes. Electrical
installation should be performed by a qualied licensed
electrician.
3. The outlet box and support structure must be securely mounted
and capable of reliably supporting a minimum of 50 lbs.
(22.7kg). Use only UL-listed outlet boxes marked “Acceptable
for Fan Support of 50 lbs. (22.7kg) or less.”
4. The fan must be mounted with a minimum of 7 ft (2.1 m) of
clearance from the trailing edge of the blades to the oor.
5. Do not place objects in the path of the blades.
6. To avoid personal injury or damage to the fan and other items,
use caution when working around or cleaning the fan.
7. After making electrical connections, spliced conductors should
be turned upward and pushed carefully up into the outlet box.
The wires should be spread apart with the grounded conductor
and the equipment-grounding conductor on one side of the
outlet box.
8. All set screws must be checked and retightened where
necessary before installation.
WARNING: To reduce the risk of personal injury,
do not bend the blade brackets (also referred to as
anges) during assembly or after installation. Do not
insert objects in the path of the blades.
WARNING: To reduce the risk of re or electric
shock, do not use this fan with any solid-state speed
control device.
WARNING: To reduce the risk of re or electric shock,
this fan should only be used with fan speed control
part no. UC7305R, manufactured by Rhine Industrial
Co., Ltd.
WARNING: Electrical diagrams are for reference
only. If you are using a light kit, refer to the light kit
instructions manual to make the electrical
connections. Optional use of any light kit shall be
UL-listed and marked suitable for use with this fan.
WARNING: To avoid possible electrical shock,
turn the electricity off at the main fuse box before
wiring. If you feel you do not have enough electrical
wiring knowledge or experience, contact a licensed
electrician.
Safety Information
Table of Contents
CAUTION: To reduce the risk of personal injury,
use only the screws provided with the outlet box.
WARNING: To reduce the risk of re, electric shock
or personal injury, mount to outlet box marked
“Acceptable for fan support of 50lbs. (22.7 Kg) or
less”, and use screws provided with the outlet box.
READ AND SAVE THESE INSTRUCTIONS.
CAUTION: Changes or modications not expressly
approved by the party responsible for compliance
could void the user’s authority to operate the
equipment.

3HOMEDEPOT.COM/HOMEDECORATORS
Please contact 1-800-986-3460 for further assistance.
Pre-Installation
Warranty
The supplier warrants the fan motor to be free from defects in workmanship and material present at time of shipment from the factory for a life-
time after the date of purchase by the original purchaser. The supplier also warrants that all other fan parts, excluding any glass or acrylic blades,
to be free from defects in workmanship and material at the time of shipment from the factory for a period of two years after the date of purchase
by the original purchaser. We agree to correct such defects without charge or at our option replace with a comparable or superior model if the
product is returned. To obtain warranty service, you must present a copy of the receipt as proof of purchase. All costs of removing and reinstalling
the product are your responsibility. Damage to any part such as by accident or misuse or improper installation or by afxing any accessories, is
not covered by this warranty. Because of varying climatic conditions this warranty does not cover any changes in brass nish, including rusting,
pitting, corroding, tarnishing, or peeling. Brass nishes of this type give their longest useful life when protected from varying weather condi-
tions. A certain amount of “wobble” is normal and should not be considered a defect. Servicing performed by unauthorized persons shall render
the warranty invalid. There is no other express warranty. Home Decorators Collection hereby disclaims any and all warranties, including but not
limited to those of merchantability and tness for a particular purpose to the extent permitted by law. The duration of any implied warranty which
cannot be disclaimed is limited to the time period as specied in the express warranty. Some states do not allow a limitation on how long an im-
plied warranty lasts, so the above limitation may not apply to you. The retailer shall not be liable for incidental, consequential, or special damages
arising out of or in connection with product use or performance except as may otherwise be accorded by law. Some states do not allow the exclu-
sion of incidental or consequential damages, so the above exclusion or limitation may not apply to you. This warranty gives specic legal rights,
and you may also have other rights which vary from state to state. This warranty supersedes all prior warranties. Shipping costs for any return of
product as part of a claim on the warranty must be paid by the customer.
Contact the Customer Service Team at 1-800-986-3460 or visit www.HOMEDEPOT.COM/HOMEDECORATORS.
SPECIFICATIONS
TOOLS REQUIRED
NOTE: These are approximate measures. They do not
include the Amps and Wattage used by the light kit.
Phillips
screwdriver
Flat blade
screwdriver
Adjustable
wrench
Electrical
tape
Wire
cutter
Step ladder
Size Speed Volts
Fan Power
Consumption
(without lights)
WATT
Airow
CFM
Airow Efciency
(Higher Is Better)
CFM/WATT
Net
Weight
Gross
Weight Cube Feet
68 in.
Low
120
27 3813 141
31.7 lbs
(14.4 kgs)
36.38 lbs
(16.5 kgs) 3.5’Medium 56 6023 107
High 98 8439 86

4
Part Description Quantity
AA Blade attachment screws 15
BB Plastic wire connecting nut 3
CC Decorative nut 15
Pre-Installation (continued)
HARDWARE INCLUDED
NOTE: Hardware not shown to actual size.
AA BB CC
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.

5HOMEDEPOT.COM/HOMEDECORATORS
Please contact 1-800-986-3460 for further assistance.
Part Description Quantity
ASlide-on mounting bracket
(inside canopy) 1
B Ball/downrod assembly 1
C Canopy with canopy ring attached 1
D Fan-motor assembly 1
E Switch cup (receiver included) 1
Part Description Quantity
F Decorative motor collar cover 1
G Blade 5
H Switch cup adaptor 1
I Remote control (battery included) 1
IMPORTANT: This product and/or components are
governed by one or more of the following U.S. Patents:
5,947,436; 5,988,580; 6,010,110; 6,046,416, 6,210,117
and other patents pending.
Pre-Installation (continued)
PACKAGE CONTENTS
A
B
F
C
D
BB
G
H
I
E
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.

6
Installation
MOUNTING OPTIONS
WARNING: To reduce the risk of re, electric shock
or personal injury, mount to outlet box marked
“Acceptable for fan support of 50lbs. (22.7kg) or
less”, and use screws provided with the outlet
box. An outlet box commonly used for the support
of lighting xtures may not be acceptable for fan
support and may need to be replaced. If in doubt,
consult a qualied electrician.
If your ceiling fan does not have an existing UL-listed mounting
box, then install one using the following instructions:
□Disconnect the power by removing the fuses or turning off
the circuit breakers.
□Secure the outlet box directly to the building structure. Use
the appropriate fasteners and materials. The outlet box and
its bracing must be able to fully support the weight of the
moving fan (at least 50 lbs.). Do not use a plastic outlet box.
The illustrations below show three different ways to mount the
outlet box.
If the canopy touches the downrod, then remove the decorative canopy
bottom cover, and turn the canopy 180° before attaching the canopy to
the mounting plate.
To hang your fan where there is an existing xture but no ceiling joist,
you may need an installation hanger bar as shown above
(available at any Home Depot store).
NOTE: You may need a longer downrod to maintain
proper blade clearance when installing on a steep, sloped
ceiling. The maximum angle allowable is 30° away from
horizontal.
Outlet Box
Outlet Box
Recessed
Outlet
Box
Provide Strong
Support
Ceiling
Mounting
Plate
Outlet Box
Hanger Bar

7HOMEDEPOT.COM/HOMEDECORATORS
Please contact 1-800-986-3460 for further assistance.
Assembly - Standard Ceiling Mount
Routing the wires
Assembling the fan
Preparing for mounting
□Remove the canopy ring (L) from the canopy (C) by turning
the ring to the right until it unlocks.
□Remove the mounting bracket (A) from the canopy (C) by
loosening the two screws (HH) located in the “L shaped”
slots
□Remove and save the two non-slotted screws (SS) in the
round holes. This will enable you to remove the mounting
bracket (A).
□Route the wires exiting the top of the fan motor (D) into
the decorative motor collar cover (F) and through the
canopy ring (L).
□Make sure the slot openings are on top and route the
wires through the canopy (C) and then through the ball/
downrod assembly (B).
2
3
1
C
A
SS
L
HH
C
D
F
B
L
FF
F
D
EE
DD
B
□Loosen, but do not remove, the setscrew (DD) on the collar (FF)
on top of the fan-motor assembly (D).
□Install the downrod (B) by inserting it into the motor collar (FF),
and turning it clockwise until it is tight.
□Re-tighten the setscrew (DD) on the collar (FF) on top of the fan
motor assembly (D).
NOTE: This fan is equipped with a safety tab (EE). Should
the setscrew (DD) ever become loose while the fan is
running in reverse, the safety tab (EE) will engage and
stop the fan from falling.
CAUTION: To ensure wobble-free operation and to avoid
damage to the fan, the downrod (B) and the setscrew
(DD) must be completely tightened

8
Assembly - Hanging the Fan
Attaching the fan to the electrical
box
Hanging the fan
□Pass the 120-Volt supply wires through the center hole in the
mounting bracket (A).
□Install the ceiling mounting bracket (A) on the outlet box (OO) by
sliding the mounting bracket (A) over the two screws (TT) provided
with the outlet box (OO). If necessary, use leveling washers (not
included) between the mounting bracket (A) and the outlet box
(OO). Note that the at side of the mounting bracket (A) is toward
the outlet box (OO).
□Securely tighten the two mounting screws (TT).
□Carefully lift the fan motor assembly (D) up to the mounting
bracket (A).
□Seat the hanger ball portion of the ball/downrod assembly (B)
in the mounting bracket (A) socket. Ensure that the tab on the
mounting bracket (A) socket is properly seated in the groove
in the hanger ball.
1 2
WARNING: To reduce the risk fo re, electric shock or personal
injury, mount to outlet box marked “acceptable for fan support
of 50 lbs. (22.7kg) or less”, and use screws provided with the
outlet box.
A
TT
OO
A
B
D

9HOMEDEPOT.COM/HOMEDECORATORS
Please contact 1-800-986-3460 for further assistance.
Assembly - Hanging the Fan (continued)
Required
connection
for fan
operation
Outlet box
in the ceiling
(OO)
Green or Bare
Green
Black White
Black
Making the electrical connection
3
IMPORTANT: Use the plastic wire connectors (BB) supplied with
your fan. Secure the connectors with electrical tape and ensure
there are no loose strands or connections.
WARNING: Each wire nut supplied with this fan is designed to
accept up to one 12-gauge house wire and two wires from the
fan. If you have larger than 12-gauge house wiring or more
than one house wire to connect to the fan wiring, consult an
electrician for the proper size wire nuts to use.
□The fan comes with 78 in. lead wires for use with an extended
ball/downrod assembly. If using the 18 in. ball/downrod
assembly (B) provided, you can cut the lead wires to your
desired length. This will make extra room in the canopy (C), if
you do not wish to cut the wires, you will need to neatly wrap
them.
□Connect the fan motor green wires to the household green or
bare wire using a wire connecting nut (BB).
□Connect the fan motor white wire to the household white wire
using a wire connecting nut (BB).
□Connect the fan motor black wire to the household black wire
using a wire connecting nut (BB).
□Secure each wire connecting nut using electrical tape.
□Turn the wire connecting nuts (BB) upward and push the
wiring into the outlet box (OO).
NOTE: The fan comes with 78 in. lead wires for use with an
extended ball/downrod assembly. If using the 18 in. ball/downrod
assembly (B) provided, you can cut the lead wires to your desired
length.
IMPORTANT: If after this step, you decide to check that the
electrical connections have been successful, it is critical to attach
the switch cup using the quick connector. The fan will not operate
unless the switch cup is connected to the fan.

10
Assembly - Hanging the Fan (continued)
Mounting the fan-motor assembly
(standard mount)
□Align the locking slots of the ceiling canopy (C) with the two
screws (HH) in the slide-on mounting bracket (A). Push up to
engage the slots, and turn clockwise to lock the canopy (C) in
place.
□Firmly tighten the two mounting screws (HH).
□Install the two mounting screws (SS) (saved from assembly
step 1 “Preparing for mounting” into the holes in the canopy
(C) and tighten rmly.
□Install the decorative canopy ring (L) by aligning the ring’s
slots with the screws in the canopy (C). Rotate the canopy
ring (L) counter-clockwise to lock it in place.
WARNING: When using the standard ball/downrod mounting, the
tab in the ring at the bottom of the mounting bracket must rest in
the groove of the hanger ball. Failure to properly seat the tab in
the groove could cause damage to the wiring.
HH
C
D
A
L
5
Wrapping the extra wire
□Gently wrap the excess wire around the mounting bracket.
□Secure with electrical tape.
4
NOTE: Follow this step ONLY if you did not cut the extra length off
from the wires coming from the ceiling fan.
WARNING: The locking slots of ceiling canopy are provided only
as an aid to mounitng. Do not leave the fan assembly unattached
until all four canopy screws are engaged and rmly tightened.

11 HOMEDEPOT.COM/HOMEDECORATORS
Please contact 1-800-986-3460 for further assistance.
Assembly - Attaching the Accessories
Attaching the fan blades
Attaching the switch cup adaptor
6
1
□Attach blade (G) to blade bracket (J) using the decorative
nuts (CC) and blade attachment screws (AA) provided. Insert
a blade attachment screw (AA) through a hole in the blade
(G) and the blade bracket (J) and into the decorative nut (CC).
Repeat for the two remaining holes in the blade (G).
□Tighten each screw (AA) securely.
□Repeat these steps for the remaining blades.
□Remove one screw (QQ) from the black bracket below the
fan motor assembly (D). Loosen, but do not remove the
other two screws (RR).
□Align the key hole slots in the switch cup adaptor (H) with
the two screws (RR) in the black bracket.
□Turn the switch cup adaptor (H) clockwise until the two
screws (RR) are situated in the narrow end of the keyholes.
□Re-install the one screw (QQ) that was removed in rst
step. Tighten all three screws rmly.
D
AA
G
CC
J
H
QQ
D
RR
Assembly - Hanging the Fan (continued)
Attaching the switch cup
2
□Remove one screw (UU) from the switch cup adaptor (H).
Loosen but do not remove the other two screws (UU).
□Connect the molded adaptor plug of the receiver (NN) in the
switch cup (E) with the molded adaptor of the fan motor
assembly (D).
□Aligning the “L” shape holes on the switch cup (E) with the
screws on the switch cup adaptor (H). Turn the switch cup
(E) to hold it in position.
□Install the other screw (UU) that was removed in the rst
step. Tighten all three screws (UU) securely.
E
NN
UU
H
D
CAUTION: To reduce the risk of electric shock, disconnect
the electrical supply circuit to the fan before installing the
switch cup.
IMPORTANT: It is critical to attach the switch cup using the
quick connector. The fan will not operate unless the switch
cup is connected to the fan.

12
Removing the receiver from the
switch cup Wiring the light kit to the fan
□Remove the lockwasher (WW) and hex nut (II) from the
threaded nipple of the light kit tter assembly and save
them for later use.
□Insert the black wire and the white wire from the light kit
through the center hole of the switch cup (E) one at a time.
□Slide the ceiling fan switch cup (E) onto the threaded nipple
on the top of the light kit.
□Insert the black wire and white wire through the lockwasher
(HH) and hex nut (II). Tighten them securely.
21
Optional Installation - Installing the Light Kit to the Altura Fan
□Remove the two screws (KK save for later use) that hold the
receiver (NN) in place, and lift the receiver (NN) out of the
switch cup (E).
□Hold the threaded retaining nut (JJ) with one hand and turn
the bottom cover (GG) counterclockwise with the other.
□Remove the threaded retaining nut (JJ) from the switch cup
(E) and reattach it to the bottom cover (GG) (save).
E
GG
JJ GG & JJ
(save)
NN
KK
LL
E
II
WW
A

13 HOMEDEPOT.COM/HOMEDECORATORS
Please contact 1-800-986-3460 for further assistance.
Optional Installation - (continued)
Reinstalling the receiver in the
switch cup
□Insert the black and white wires (LL) from the light kit (A)
through the center hole of the receiver (NN) one at a time.
□Insert the receiver (NN) into the switch cup and align the
tabs on the receiver (NN) with the posts inside the switch
cup (E).
□Attach the receiver (NN) to the switch cup (E) using the
screws (KK saved from step 2). Tighten securely.
□Attach the white wire from the receiver to the white wire
from the light kit (A).
□Attach the blue wire from the receiver to the black wire
from the light kit (A).
34Attaching the switch cup and light
kit to the fan
□Remove one screw (UU) from the switch cup adaptor (H).
Loosen but do not remove the other two screws (UU).
□Connect the molded adaptor plug of the receiver (NN) in the
switch cup (E) with the molded adaptor of the fan motor
assembly (D).
□Aligning the “L” shape holes on the switch cup (E) with the
screws on the switch cup adaptor (H). Turn the switch cup
(E) to hold it in position.
□Install the other screw (UU) that was removed in the rst
step. Tighten all three screws (UU) securely.
□Refer to your light kit instructions to nish light kit
installation.
CAUTION: To reduce the risk of electric shock, disconnect
the electrical supply circuit to the fan before installing the
switch cup.
IMPORTANT: It is critical to attach the switch cup using the
quick connector. The fan will not operate unless the switch
cup is connected to the fan.
E
UU
MM MM
H
E
A
LL
NN
KK

14
Operating Your Fan and Remote Control
Remote Control - Your fan is equipped with a remote control to operate
the speed and lights of your new ceiling fan.
Speed setting for warm or cool weather depends on factors such as
the room size, ceiling height, number of fans and so on.
Warm weather - (Forward) A downward airow creates a cooling effect.
This allows you to set your air conditioner on a higher setting without
affecting your comfort.
Cool weather - (Reverse) An upward airow moves warm air off of the
ceiling. This allows you to set your heating unit on a lower setting
without affecting your comfort.
NOTE: Do not wait for the fan to stop before pressing the reverse button.
The fan will not reverse direction if the fan is not moving.
Setting the code on the remote control
□Remove the battery cover by pressing rmly on the arrow
and sliding the cover off.
□Slide the code switches to your choice of either up or down.
The factory setting is up.
□Install a 12-V battery (included)
□Replace the battery cover on the remote control.
NOTE: This remote is equipped with 16 code combinations. To prevent
possible interference from or to other remote units, such as garage
door openers, car alarms, or security systems, simply change the
combination code. The code switch marked ON/DIM is for dimming
control of the lights: Set the code switch to ON to allow for no dimming
of the lights such as for uorescent bulbs. Set the code switch to DIM
to allow for dimming of the lights.
1 2 34
ON
ON
DIM
12V 23A
DIP
1 2 3 4
O N
ON
DIM
NOTE: If using a light kit, the light switch located on the light kit
should be at “ON” position before operating the remote control.
Operating the fan

15 HOMEDEPOT.COM/HOMEDECORATORS
Please contact 1-800-986-3460 for further assistance.
Operating Your Fan and Remote Control
Learning process
□Turn the main power source off to begin the learning process.
□Return the power to the fan.
□Within 60 seconds of turning the fan’s power ON, press and hold
the “FAN OFF” button (VV) on your remote control for 5 seconds.
Once the receiver has detected the set frequency, the down light
of your fan, if applicable, will blink twice. If your fan is currently
on, the fan will stop running. If your fan is currently off, the fan
will move forward at medium speed.
NOTE: After the AC power is on, do not press any other button on
the remote control before pressing the “FAN OFF” button (VV).
Doing so will cause the procedure to fail.
Remote control operation
NOTE: The remote control can learn multiple receivers. Make
sure no other receivers are operating during the learning
process. Separate the fan power switches by approximately 2
meters.
Light/Dimmer button (XX) = Press and release the button immedi-
ately to turn on or turn off the light. Press and hold the button to
dim or brighten the light to the desired level and then release.
(For tungsten bulbs only and down light function, turn the switch
to “DIM”.)
1 = Low speed
2 = Medium speed
3 = High speed
Off button (VV)= Power off
Reverse button (WW) = Press and release the button immediately to
set the fan air ow direction up or down.
XX
WW
VV

16
Troubleshooting
Problem Solution
The fan will not start □Check the main and branch circuit fuses or breakers.
□Check the line wire connections to the fan and switch wire connections in the switch housing.
□Check the battery in the remote control.
□Ensure you are in the normal range of 10-20 feet.
□Remember to turn off the power supply before checking the dip switch settings.
The fan is noisy □Ensure all motor housing screws are snug.
□Ensure the screws that attach the fan blade bracket to the motor hub are tight.
□Ensure the wire nut connections are not rattling against each other or the interior wall of the switch housing.
□Allow a 24-hour “breaking in” period. Most noises associated with a new fan disappear during this time.
□If you are using the Ceiling Fan light kit, ensure the screws securing the glassware are tight. Check that the light
bulbs are also secure.
□Ensure the canopy is a short distance from the ceiling. It should not touch the ceiling.
□Ensure your outlet box is secure and rubber isolator pads were used between the mounting plate and outlet box.
The fan wobbles □Check that all blade and blade arm screws are secure.
□Most fan wobble problems are caused when blade levels are unequal. Check this level by selecting a point on
the ceiling above the tip of one of the blades. Measure from a point on the center of the blade to the point on the
ceiling. Rotate the fan until the next blade is positioned for measurement, and measure from the same point on
each blade to the ceiling. Repeat for each blade. Any measurement deviation should be within 1/8 in. Run the fan
for ten minutes. If the fan continues to wobble please contact Home Decorators Collection Customer Service and
a balacing kit will be sent to you at no charge.
□Because of the fan’s natural movement, some connections may become loose. Check the support connections, brackets, and blade
attachments twice a year. Make sure they are secure. It is not necessary to remove the fan from the ceiling.
□Clean your fan periodically to help maintain its new appearance over the years. Do not use water when cleaning, as this could damage
the motor, or the wood, or possibly cause an electrical shock. Use only a soft brush or lint-free cloth to avoid scratching the nish.
□You can apply a light coat of furniture polish to the wood for additional protection and enhanced beauty. Cover small scratches with a
light application of shoe polish.
□You do not need to oil your fan. The motor has permanently-lubricated sealed ball bearings.
WARNING: Make sure the power is off before cleaning
your fan.
Care and Cleaning

Questions, problems, missing parts? Before returning to the store,
call Home Depot Customer Service
8 a.m. - 6 p.m., EST, Monday-Friday
1-800-986-3460
HOMEDEPOT.COM/HOMEDECORATORS
Retain this manual for future use.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a resi-
dential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
CAUTION:
Any changes or modications not expressly approved by the grantee of this device could void the user’s authority to
operate the equipment.
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.