Antennacraft Antenna C490 manual

							
Step 2       Unfolding the Elements
1.  Hold the main boom’s elements near the pivot points and pull 
them away from the boom until they snap into the support insu-
lators.
Caution: To avoid damage to the elements, do not pull them near 
their outer ends. Once the elements are locked into position, do not 
attempt to unlock them. Doing so might break the elements.
2.  Hold  each  wing  boom  and  turn  its  elements  until  they  snap 
squarely into place (perpendicular to the wing boom). 3.  
Set up the mast, then rotate it so the antenna’s shorter elements point 
toward  the  broadcast  antennas  of  the  stations  you  want  to  receive.
Step 5      Routing the Cable to Your 
Audio/Video System
 Use  plastic  tape  or  mast  standoff  insulators  to  secure  the  coaxial 
cable to the mast at about 3-foot intervals. Continue down the roof 
and the side of the house using roof and wall standoff insulators.
 
Use  coaxial  cable  nail  clips  every  few  feet  to  secure  the  cable 
between the mast and where the cable enters the house.
 Use a 75 ohm grounding block (available at your local electron-
ics store) where the coaxial cable enters the house. Read the Con-
sumer Product Safety Commission Information for grounding 
instructions.
 Use a wall-through lead-in tube (not supplied) to neatly route the 
coaxial cable through walls.
  Loosely bend the cable to form a drip loop before the cable en
-
ters the house.
 Connect  the  antenna’s  coaxial  cable  to  your  audio/video  sys-
tem’s  antenna  terminals  according  to  the  types  of  connections 
you have. Your local electronics store carries a variety of splitters 
and other accessories; choose the one that best suits your needs.Step 1      Assembling the Antenna
Assemble the entire antenna on the ground.
1.  Use  the  supplied  hardware  to  assemble  the  three  main  boom 
sections, as shown. If necessary, lift one end of the main boom 
so the crossover wires reach the threaded posts. 3. 
 Attach  the other mast clamp assembly to the support boom. (Be 
sure it faces the same direction as the main boom’s mast clamp 
assembly). Fold out the two sets of metal support straps on the 
support boom and attach them to the corresponding holes on the 
main boom using the two supplied 1 ½-inch screws and wing nuts.Before You Begin  
Before  beginning  installation,  read  these  directions  and  the 
Consumer  Product  Safety  Commission  Information.  For 
your safety and convenience, plan each step of the installation 
and  purchase  the  necessary  hardware  in  advance.  The  hard-
ware  required  and  the  order  in  which  you  perform  the  steps 
depend on the mounting and connection method you choose.
2.   Use the supplied hardware to loosely attach one of the supplied 
mast clamp assemblies to the main boom, as shown. Move the 
antenna’s elements out of the way as needed to access the mast 
clamp holes.
Limited Warranty
This product is warranted by Antennacraft against manufacturing defects in material and workmanship under normal use for ninety (90) days from the date of purchase from Antennacraft d\
ealers.
EXCEPT AS PROVIDED HEREIN, ANTENNACRAFT MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING  THOSE  OF  MERCHANTABILITY  AND  FITNESS  FOR  A  PARTICULAR  PURPOSE,  ARE  LIMITED  IN  DURATION TO  THE  DURATION  OF  THE  WRITTEN  LIMITED  WARRANTIES  CONTAINED  HEREIN.  EXCEPT  AS  PROVIDED  HEREIN, ANTENNACRAFT SHALL HAVE NO LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFORMANCE OF  THE  PRODUCT  OR  ARISING  OUT  OF  ANY  BREACH  OF  THIS  WARRANTY,  INCLUDING,  BUT  NOT  LIMITED  TO,  ANY DAMAGES  RESULTING  FROM  INCONVENIENCE,  LOSS  OF  TIME,  DATA,  PROPERTY,  REVENUE,  OR  PROFIT  OR  ANY INDIRECT,  SPECIAL,  INCIDENTAL,  OR  CONSEQUENTIAL  DAMAGES,  EVEN  IF  ANTENNACRAFT  HAS  BEEN  ADVISED  OF THE POSSIBILITY OF SUCH DAMAGES.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not\
 apply to you.
In  the  event  of  a  product  defect  during  the  warranty  period,  take  the  product  and  the  sales  receipt  as  proof  of  the purchase  date  to  any  ANTENNACRAFT  dealer. ANTENNACRAFT  will, at  its  option, unless  otherwise provided by  law: (a)  correct  the  defect  by  product  repair  without  charge  for  parts  and  labor  (b)  replace  the  product  with  one  of  the same or similar design; or (c) refund the purchase price.  All replaced parts and products, and products on which a refund  is  made,  become  the  property  of  ANTENNACRAFT.  New  or  reconditioned  parts  and  products  may  be  used  in the performance of warranty service. Repaired or replaced parts and products are warranted for the remainder of the original  warranty  period.  You  will  be  charged  for  repair  or  replacement  of  the  product  made  after  the  expiration  of the warranty period.
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse, accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or maintenance, alteration, lightning or  other  incidence  of  excess  voltage  or  current;  (b)  any  repairs  other  than  those  provided  by  an  ANTENNACRAFT authorized  service  facility;  (c)  consumables  such  as  fuses  or  batteries;  (d)  cosmetic  damage;  (e)  transportation, shipping or insurance costs; or (f) costs of product removal, installation, set-up service adjustment or reinstallation. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
ANTENNACRAFT, PO Box 1005, Burlington, IA 52601,  319-758-8050             www.anten\
nacraft.net             8/09  Product may vary from depiction. Mast not included.  
WARNING: Installation of this product near powerlines is dangerous.  
For your safety, follow the installation directions. 
When you install your antenna, use extreme caution. If the antenna start\
s 
to fall, let it go! It could contact overhead power lines. If the antenn\
a 
touches the power line, contact with the antenna, mast, cable or guy wir\
es 
can cause electrocution and death. Call the power company to remove the \
antenna. Do not attempt to remove it yourself.
Washers
CrossoverWires
 1½ -Inch Screws
Wing Nuts
Splint
Threaded PostsWing Nuts
U-Bolt
Main Boom
Mast Clamp
Lock NutsBackup Plate
Spade Ends
Strain-Relief Tab
Lead-In TerminalsMatching Transformer
F-Connector
Weather BootWashers
Wing Nuts
UHF Bowtie 
Lead-In Terminals
UHF/VHF Isolation Network
Main Boom 
Outdoor HDTV Antenna for VHF/UHF/FM
   Model C490
4.  Press the supplied large end plugs into the main boom and the 
support boom.
5.   Pull both UHF bowties away from the main boom until they lock 
into place. Then slide each of the bowtie’s unattached ends over 
the  antenna’s  lead-in  terminals  labeled CONNECT  LEAD-IN 
HERE (one for each half of the bowtie on each side of the boom).
Note:  Both  sections  of  the  UHF/VHF  isolation  network  should  re-
main parallel to the main boom. 3.  
Fold out the wing booms and secure them into position with the 
two supplied 1¼-inch screws and wing nuts.
Main Boom
Support Boom
Support Straps
Support StrapsMast Clamp Assemblies
Wing Boom
1¼-Inch Screws
Wing Nuts
Wing BoomElements
Wing Boom
Step 4      Attach to the Mast
We recommend that you enlist the help of another person before you 
put  up  the  mast  or  attach  your  antenna  to  it.  How  you  set  up  your 
mast depends on your specific installation. Refer to the Consumer 
Product Safety Commission for recommended methods.
1.  
Slide the antenna’s mast clamp assemblies over the end of the mast.
2.   Tighten the mast clamp assemblies lock nuts to hold the antenna 
in place. Do not over tighten the lock nuts.
Caution: The crossover wires must not touch the antenna boom, the 
mast, or each other. If necessary, carefully bend the crossover wires to 
provide at least ½-inch of clearance between the parts.
Crossover Wires
Mast
Main AntennaBoom
4.   Press the supplied small end plugs into the wing booms.
Step 3      Connecting the Coaxial Cable
We  recommend  RG-6  cable  and,  if  you  prepare  your  own  cable,  a 
quality  F-connector.  (Your  local  electronics  store  carries  a  variety  of 
suitable cables and connectors.)
Note:  If  you  prepare  your  own  coaxial  cable,  be  sure  to  slide  the 
supplied matching transformer’s weather boot onto the cable before 
you attach the F-connector.
1.  Thread  the  supplied  matching  transformer’s  spade  terminals 
through the antenna’s strain-relief tab.
2.   Slide  the  spade  terminals  around  the  antenna’s  lead-in  termi
-
nals  (on  both  sides  of  the  boom),  then  secure  them  with  the 
supplied washers and wing nuts.
3.   Screw the cable’s F-connector onto the matching transformer.
4.   Slip  the  weather  boot  over  the  connection.  If  you  use  a  pre
-
built  cable  without  a  weather  boot,  cover  the  connection  with 
weather-resistant tape.
   7000C490IS           C490          1500267
TowardsTV Stations 
						

							
WARNING: INSTALLATION OF 
THIS PRODUCT NEAR 
POWERLINES IS DANGEROUS. 
FOR YOUR SAFETY, FOLLOW THE 
INSTALLATION DIRECTIONS.
 
DANGER
WATCH FOR POWER LINES! 
You can be KILLED if this antenna 
comes near electric power lines. 
READ INSTRUCTIONS.
IF AN ACCIDENT SHOULD 
OCCUR WITH POWER LINES
1.  Call for emergency help.
2.  Don’t  touch  a  person  who  has 
come  in  contact  with  the  antenna 
and  the  powerline  (you’ll  be  elec-
trocuted, too).
3.  If  the  victim  is  free  and  clear  from 
any  electric  powerlines  and  is  un-
responsive,  administer  CPR  until 
emergency help arrives.
FOLLOW THESE RULES AND LIVE
1.	 If	you’re 	not 	sure 	about 	a 	careful, 	safe 	installation—don’t 	try	
to	 do	 it	yourself.	 Call	your	 local	 power	 company	 or	check	
with 	Yellow 	Pages 	under 	“Antennas 	or 	Television 	and	
Radio	 Antenna	Systems”	for	an	installer	in	your	area.
2.	 With 	at 	least 	two 	people, 	assemble 	as 	much 	of 	the 	antenna	
on	the	ground	as	possible.
3.	 Watch 	out 	for 	overhead 	power 	lines. 	Check 	the 	distance 	to	
the	 power	 lines	before	 you	start	 installing—WE	 RECOM
-
MEND 	YOU 	STAY 	A 	MINIMUM 	OF 	TWICE 	THE 	MAXIMUM	
LENGTH 	OF 	THE 	ANTENNA 	AND 	ITS 	MAST 	AWAY 	
FROM	 ALL	POWER	LINES.
4.	 Do	not	use	a	metal	ladder.
5.	 Remember,	 even	the	slightest	 touch	of	an	 antenna	 to	a	
power	line	can	cause	a	fatal	shock.
6.	 Don’t	try	to	do	the	job	on	a	windy	day.
7.	 Have 	a 	friend 	watch 	as 	a 	spotter 	on 	the 	ground 	when 	you’re	
on	the	roof	to	see	things	you	can’t.
8.	 If	 you	start	 to	drop	 the	antenna,	 get	away	 from	it	and	 let	it	
fall.
9.	 If	 any	part	 of	the	 antenna	 comes	in	contact	 with	a	power	
line 	CALL 	YOUR 	LOCAL 	POWER 	COMPANY; 	DON’T 	TRY 	
TO	REMOVE	IT 	YOURSELF!	 They	will	remove	it	safely.
10.	 Keep	 mast,	lead-in	 and	metal	 guy	wires	 away	 from	power	
lines,	 too.	They	 are	all	excellent	 conductors	 of	electrical	
current.
11.	 Be	 sure	everyone	 understands	 the	danger	 of	touching	 an	
overhead	 power	line.	Tell	them	 never	 to	try	 to	remove	 any	
object	touching	a	power	line.
12.	Make 		sure 		the 		antenna 	and 		mast 		are 		properly 		grounded.
SELECT AND MEASURE YOUR INSTALLATION SITE
Before	 attempting	 to	install	 your	antenna,	 think	of	where	 you	
can 	best 	place 	your 	antenna 	for 	safety 	and 	performance. 	Most	
antennas 	are 	supported 	by 	pipe 	masts 	attached 	to 	the 	chimney,	
roof,	 or	side	 of	the	 house.	 Generally,	 the	higher	 the	antenna	
is	 above	 the	ground,	 the	better	 it	performs.	 A	good	 practice	 is	
to	 install	 your	antenna	 about	5	to	 10	 feet	 above	 the	roof	 line	
and	away	from	power	lines	and	obstructions.	
Remember 	that 	the 	FCC 	limits 	your 	antenna 	height 	to 	60 	feet. 	If	
possible, find a mounting place directly above your set, where 
the	 antenna	 lead-in	wire	can	take	 a	short,	 vertical	 drop	on	the	
outside	 of	the	 house	 for	entry	 through	 a	wall	 or	window	 near	
the	 set.	 To	determine	 a	safe	 distance	 from	wires,	 power	 lines,	
and	trees:
1.	 Measure	the	length	of	your	antenna.
2.	 Add 	the 	antenna 	length 	to 	the 	height 	of 	your 	tower 	or	
mast.	
3.	 Double 	this 	total 	for 	the 	minimum 	recommended 	safe	
distance.
If	you	cannot	maintain	this	safe	distance,	
STOP! 
GET PROFESSIONAL HELP.
   
CHOOSING A STRUCTURE MOUNT
Follow the installation directions for the individual type of 
mount you choose.
GENERAL  INSTALLATION  DIRECTIONS  FOR  MAST 
MOUNTED ANTENNAS
1.	Assemble 	your 	new 	antenna 	on 	the 	ground 	at 	the	
installation 	site. 	Follow 	the 	separate 	assembly 	instruc
-
tions	that	come	with	it.
2.	 Install	the	selected	mount	for	your	antenna.
3.	 Attach	the	mast	and	antenna	to	the	mount.
	Note: 		If	you	are	going	to	use	guy	wires:
	 •	 Install	guy	wire	anchor	bolts
	 •	 Estimate	length	of	guy	wires	and	cut	them
	 •	 Attach	to	mast	using	guy	wire	ring
	 •	 Have	a	second	person	hold	the	mast	upright		while	 	
		 the	guy	wires	are	attached	and	tightened	to	the	
	 		 anchor	bolts 4.	 IF	
YOUR	 MAST	DOES	 NOT	HAVE	 A	DANGER	 LABEL,	
INSTALL 	THE 	SELF-ADHERING 	DANGER 	LABEL 	
PACKAGED	 IN	ANTENNA 	HARDWARE	 KIT	AT 	EYE	
LEVEL 	ON	YOUR	MAST.
ANTENNA GROUNDING
To	protect 	your 	house 	and 	your 	TV/FM 	installation, 	your	
antenna	system	must	be	properly	grounded.
1.	 Clamp	 a	#10	 copper	 wire	to	the	 base	 of	the	 antenna 	
mast.	 Using	 standoffs	 every	4	to	 6	feet,	 run	the	wire	
down	the	building	in	as	straight	a	line	as	possible.
2.	 Attach	 a	75	 ohm	 grounding	 block	(available	 at	your	 lo
-
cal	 electronics	 store)	to	the	 antenna’s	 lead-in	cable	as	
close	 as	possible	 to	the	 point	 where	 the	cable	 enters	
the	house.
3.	 Attach 	the 	grounding 	wire 	to 	the 	cable’s 	grounding 	block	
and	run	the	wire	to	the	central	building	ground.
Acceptable	central	building	ground	points	may	include:
•  Grounded interior metal cold water pipe within five feet 
of	the	point	where	it	enters	the	building.
•	 Grounded	metallic	service	raceway
•	 Grounded	electrical	service	equipment	enclosure
•	 8-foot 	grounding 	rod 	driven 	into 	the 	ground 	(only 	if	
bonded	 to	the	 central	 building	 ground	by	#6	 or	heavier	
bonding	wire)
•	 Other 	acceptable 	grounding 	electrodes 	that 	comply 	with	
sections	 250	and	810	of	the	 National	 Electrical	 Code	
(NEC).
ANTENNA REMOVAL
To	remove	 the	antenna,	 follow	the	instructions	 for	installing	
the antenna, but start with the last step first. That’s the only 
safe	way	to	remove	an	antenna.
B A S E   A N D   R O O F MOUNT: 	Mast		 locks		
i n t o 	U - b o l t . 	S w i v e l	
base fits the slope of 
most		rods.
UNIVERSAL MAST ANCHOR MOUNT: 	Has	 U-bolt	 for	easy		
swivel. 	Adapts 	to 	most 	roof	
slopes.
VENT  PIPE  MOUNT:	
For 	smaller 	antennas.	
Attaches	to	vent	pipe.
CORNER MOUNTS:	
Two	 Y-mounts	with	
straps	for	chimney	
corner	mounting.
CHIMNEY RATCHET MOUNT: 	Provides	
secure	mounting	
to	chimney	with	
straps.
T O W E R : 	N o t	
recommended,	
for 	professional	
use	only.
TELESCOPIC  MAST: 	Has	
interlocking 	sections, 	for	
professional	use	only.
TRIPOD MOUNT: 	Sturdy	an-
tenna	mount	for	larger	anten-
nas	subject	to	stronger	winds.	
Fits	most	roof	slopes.
WALL MOUNTS:	
Used	on	side	of	
structure.
EAVE MOUNT: 	For 	at-
taching	 antenna	 mast	
to 	hanging 	rafters 	or	
trim	boards.
to CentralBuildingGround
Ground Wire
75 ohm Grounding Block
Mast
Lead-InCable
The safest distance from powerlineshould be twice the height of the mast plus twice the length of the antenna..SAFEST 
LOCATION
Consumer Product Safety Commission Information