Antennacraft Antenna HD1850 manual

							3.If your antenna has a support boom, align its support straps
and mast clamp with the main boom’s support strap holes
and mast clamp. Attach the support straps to the main boom
using the supplied 1
1/2-inch screws and large wing nuts.
4. Press the supplied large end plugs into the main boom and
cradle boom.
5. Pull the two halves of the UHF dipole away from the main
boom until they lock into place. Then place each half’s un-
attached end over one of the antenna’s lead-in terminals
(one for each half of the UHF bowtie on each side of the
boom). Note: Both sections of the isolation network should
remain parallel to the main boom.
BEFORE YOU BEGIN
Read this manual and Consumer Product Safety Commission
information. For your safety and convenience, plan each step of
the installation and purchase the necessary hardware in advance.
The order in which you perform the steps and the hardware re-
quired depends on the mounting and connection methods you
choose.
We recommend two people assemble the entire antenna on the
ground, then mount the assembled antenna on the mast. The
following steps are required to assemble your antenna depend-
ing on which model you have. Look at your antenna to see which
steps you will need to follow.
Warning: When you install your antenna, use extreme caution.
If the antenna starts to fall, let it go! It could contact overhead
power lines. If the antenna touches the power line, contact with
the antenna, mast, cable, or guy wires can cause electrocution
and death. Call the power company to remove the antenna.
Do
 not attempt to remove it yourself.
ASSEMBLING THE ANTENNA
1.Use the supplied hardware to assemble the main boom sec-
tions as shown. If necessary, lift one end of the main boom so
the wires reach the threaded posts of the next section.
HD SERIES
UHF/VHF/FM Antenna with MatchingTransformer
HDTV-Compatible
HD1850
2. Loosely attach the supplied U-bolt and lock nuts to the mast
clamp assembly on the main boom as shown. If your an-
tenna has a support boom, attach its U-bolt and lock nuts to
its mast clamp assembly, facing it 
the same direction as the
main boom’s mast clamp assembly
. HD1800
HD1200
HD850
WARNING: Installation of this
product near powerlines is
DANGEROUS. For your safety,
follow the installation directions. 
						

							 
Using Coaxial Cable
1. Thread the supplied matching transformer’s spade terminal
ends through the antenna’s strain-relief tab.
2. Slide the spade terminal ends around the antenna’s lead-in
terminals marked CONNECT LEAD-IN HERE. Secure them
with the supplied flat washers and large wing nuts.
3. Screw the cable’s F-connector onto the matching transformer.
Then slip the weatherboot over the connection. Note: If you
use a cable without a weatherboot, cover the connection
with weatherproof tape.
Using Twin-Lead Cable
1. Split the twin-lead cable for a length of about 3 inches. Then
strip about 1/2 inch of insulation from both leads.
2. Thread the stripped leads through the antenna’s plastic strain-
relief tab. Wrap each lead around one of the antenna’s lead-
in terminals marked CONNECT LEAD-IN HERE, and se-
cure them with the supplied flat washers and large wing nuts.
UNFOLDING THE ANTENNA ELEMENTS
1. Hold each wing boom and turn its elements until they snap
squarely into place (perpendicular to the boom).
2. Press the supplied small end plugs into the ends of the wing
booms.
3. Fold out the wing booms and secure them into position with
the two supplied 1
1/4-inch screws and wing nuts.
4. Hold the main boom’s elements near the pivot points and
pull them away from the boom until they snap into the lock-
ing plastic support insulators. Note: You may wait to unfold
the elements until you get the antenna up on the roof.
Caution: Do not pull the elements near their outer ends or you
could damage them. Once the elements are locked into posi-
tions, do not attempt to unlock them.
ATTACHING TO THE MAST
We recommend you get 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 Con-
sumer Product Safety Commission information on pages 3 and
4 of this manual for recommended methods.
1. Slide the antenna’s mast clamp assemblies over the end of
the mast, with the main boom on top.
2.
Tighten the mast clamp assembly’s lock nuts to hold the an-
tenna in place. Do not overtighten 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 1/2 inch of clearance.
3. Set up the mast, then rotate it so the antenna’s shortest ele-
ments point toward the stations you want to receive.
If you use coaxial cable:

Use plastic tape to secure the coaxial cable to the mast at
about 3-foot intervals.

Use coaxial nail clips every few feet to secure the cable be-
tween the mast and where the cable enters the house.

Use a 75-ohm grounding block at the point where the co-
axial cable enters the house. Read the Consumer Product
Safety Commission information for grounding instructions.

Use a wall-through tube to neatly route the coaxial cable
through the walls.
If you use twin-lead cable:

Be sure the twin-lead cable remains at least 4 inches away
from all metal surfaces.

Use standoff insulators about every 4 feet. Twist the twin-
lead cable about three turns between standoff insulators.

Use a 300-ohm static discharge unit at the point where the
twin-lead cable enters the house. Read the Consumer Prod-
uct Safety Commission information for grounding instructions.
CONNECTING LEAD-IN CABLE TO THE ANTENNA
We recommend RG-6 cable, and if you prepare your own cable,
a quality F-connector. You can also use 300-ohm flat, twin-lead
cable. Note: If you prepare your own cable, slide the supplied
matching transformer’s weather boot onto the cable before you
attach the F-connector.
ROUTING THE CABLE TO YOUR TV/VCR/FM RECEIVER