Linear EXA-1000 User Manual
EXA-1000
Remote Antenna with
Vertical Radials
Installation
Instructions
The EXA-1000 Remote Antenna is designed to enhance the radio
range of Linear’s receivers. This antenna can be connected to
the “F” connector on many Linear receivers to improve their range
when they must be located in poor signal reception locations.
Usually an increase of 20-30% range can be expected. The
versatile EXA-1000 can be mounted in a variety of ways. A 2-inch
U-bolt is supplied for post or pipe mounting, or the U-bolt holes
in the Base Plate can be used to screw the antenna to a wall
or vertical wood brace or beam.
☞
NOTE: Generally, the higher the antenna is mounted
above ground level, the better the radio range will be.
The EXA-1000 provides maximum performance when mounted
and installed properly according to these instructions.
Please
read the entire instructions before beginning any work.
The
EXA-1000 is a 1/2 wave, center fed, vertical antenna composed
of three parts: an Antenna assembly with an “F” connector
attachment; a Base Plate assembly with radial mounting
provisions; and a five-foot, 75-ohm coaxial cable. The cable
connects to the antenna base on one end and the receivers “F”
connector on the other. If the antenna must be mounted further
than five feet from the receiver, an extension cable of up to a
maximum of 25 feet may be used instead of the five foot cable
supplied. Because of the cable resistance, the performance of
the EXA-1000 may be degraded by using longer than a 25 foot
cable.
PARTS LIST
ITEM # DESCRIPTION
1
5-Foot RG-59/U Co-ax Cable
2
Base Plate (3" x 3" x 1")
3
4 Radials (9-3/8" Stainless Steel)
4
2-56 Hex Nuts for Radials (4)
5
2" Diameter U-Bolt
6
1/4" Internal Star Washers for U-Bolt
7
7/16" Hex Nuts for U-Bolt
8
Antenna (9-1/4" Stainless Steel)
9
1/2" Hex Nut for Barrel Connector
10
1/2" Flat Washer for Barrel Connector
11
F-81 Barrel Connector
STEP 1
Identify Parts.
Lay out and identify all
the parts as shown. Check the parts list to be sure all
items were included in the kit.
STEP 2
Assemble Base
.
From the top (angled
side of the Base Plate (Item #2), insert the long end
of the F-81 Thru-barrel Connector (Item #11) into the
center hole of the plate. Secure the connector with
the flat washer (Item #10) and the 1/2 inch hex nut
(Item #9).
STEP 3
Assemble Radials.
Screw each of the
2-56 hex nuts (Item #4) about half way down the
threaded end of the four radial rods (Item #3).
STEP 4
Attach Radials.
Screw each of the four
radial rods (Item #3) into the bottom side of the Base
Plate (Item #2) until the rod end slightly protrudes
above the top side of the Base Plate. Tighten the nuts
to secure each radial.
☞
NOTE: Over-tightening the nuts may damage the
threads in the Base Plate.
STEP 5
Complete Antenna.
Attach the Antenna
(Item #8) to the F-81 Connector (Item #11)
from the
top
of the Base Plate.
STEP 6
Post Mounting
.
Use the post mounting
technique for a round post up to two inches in
diameter. For a larger post, follow the wall mounting
instructions to attach
the Base Plate to the
post. Attach the Base
Plate assembly to the
designated post or
pipe using the 2-inch
U-bolt (Item #5) with
the two lock washers
(Item #6) and 7/16
hex nuts (Item #7).
STEP 7
Wall Mounting.
Mount the EXA-1000 on
the wall high enough to achieve optimum range,
leaving sufficient clearance to permit the vertical
antenna to stand in free air. Attach the Base Plate to
the wall using #10 wood
screws (not included)
through the U-bolt
holes.
☞
Caution: Do not
mount on metal plate
or metal backed walls.
STEP 8
Attic Mounting.
Attach the Base Plate
assembly to a joist, beam or some other object in the
attic using #10 wood screws through the U-bolt
holes. A good place to mount the antenna in an attic
is on a plastic vent pipe (see “Post Mounting” for
instructions). Try to keep the antenna as far away
from large metal objects (duct work, furnace vents,
etc) as possible.
☞
Caution: In attics, or under room structures, metal
foil backed insulation and drywall metallic vapor
barriers will degrade radio range and performance.
LINEAR LIMITED WARRANTY
This Linear product is warranted against defects in material and workmanship
for twelve (12) months. The Warranty Expiration Date is labeled on the product.
This warranty extends only to wholesale customers who buy direct from Linear
or through Linear’s normal distribution channels.
Linear does not warrant this
product to consumers.
Consumers should inquire from their selling dealer as
to the nature of the dealer’s warranty, if any.
There are no obligations or
liabilities on the part of Linear Corporation for consequential damages
arising out of or in connection wi th use or performance of this pr oduct or
other indirect damages with r espect to loss of property, revenue, or profit,
or cost of removal, installation, or reinstallation.
All implied warranties,
including implied warranties for merchantability and implied warranties for
fitness, are valid only until Warranty Expiration Date as labeled on the product.
This Linear Corporation Wa rranty is in lieu of all other warranties express
or implied.
All products returned for warranty service require a Return Product
Authorization Number (RPA#). Contact Linear Technical Services at
1-800-421-1587 for an RPA# and other important details.
Linear radio controls provide a reliable communications link and fill an important
need in portable wireless signalling. However, there are some limitations which
must be observed.
✶
For U.S. installations only: The radios are required to comply with FCC Rules and
Regulations as Part 15 devices. As such, th ey have limited transmitter power and therefore
limited range.
✶
A receiver cannot respond to more than one transmitted signal at a time and may be blocked by
radio signals that occur on or near their operating frequencies, regardless of code settings.
✶
Changes or modifications to the device may void FCC compliance.
✶
Infrequently used radio links should be tested regularly to protect against undetected
interference or fault.
✶
A general knowledge of radio and its vagaries should be gained prior to acting as a wholesale
distributor or dealer, and these facts should be communicated t o the ultimate users.
Copyright © 2000 Linear Corporation 109783 D
1
2
3
4
5
6
7
8
9
10
11
SHORT END
LONG END
BASE
PLATE
(ITEM #2)
1/2 INCH
FLAT
WASHER
(ITEM #10)
1/2 INCH
HEX NUT
(ITEM #9)
F-81 BARREL
CONNECTOR
(ITEM #11)
RADIAL
RODS (4)
(ITEM #3)
2-56 HEX
NUTS (4)
(ITEM #4)
ANTENNA
(ITEM #8)
RADIALS (4)
(ITEM #3)
UP
RADIAL
RODS (4)
(ITEM #3)
BASE
PLATE
(ITEM #2)
ANTENNA
MOUNTED
AS HIGH
AS POSSIBLE
CO-AX TO
RECEIVER
(760) 438-7000 • FAX (760) 438-7043
USA & Canada (800) 421-1587 & (800) 392-0123
Toll Free FAX (800) 468-1340
www.linearcorp.com
2" MAXIMUM
DIAMETER
U-BOLT
#10 WOOD
SCREWS
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