Advertisement
Quick Links
308 Industrial Park Road
Starkville, MS 39759 USA
(662) 323 -953 8 FAX: (662) 32 3-655 1
I N S T R U C T I O N M A N U A L
General Description
The Hy-Gain 203BA-S is an optimum spaced,
three-element, 20-meter beam. A beta match
insures maximum transfer of energy from the
feedline to the antenna. The Model 203BA-S
is recommended to fit a 2" to 2 1/2" O.D.
mast and can be rotated with the CD-4511 or
Ham IV rotators. The 203BA-S now includes
stainless steel hardware for all electrical and
most mechanical connections.
Preparation for Assembly
Please read all the installation instructions
and study the illustrations before beginning
the antenna assembly.
Ph:
Figure 1
VSWR Chart
L J - 2 0 3 B A
Long John MonoBander
3-Element 20-Meter Beam
FOR OVERSEAS CUSTOMERS: If you use
the Metric System, see the American-to-
Metric conversion table in the rear of this
manual. Most illustrations in this manual will
provide
both
American
Dimensions.
When unpacking your antenna, check inside
of all tubing for small parts and elements. To
conserve space, these smaller articles are
sometimes put inside larger pieces. Check all
parts against the parts list in the rear of this
manual to ensure no parts are missing.
and
Metric
Advertisement
Subscribe to Our Youtube Channel
Related Manuals for Hy-Gain LJ-203BA
Summary of Contents for Hy-Gain LJ-203BA
- Page 1 General Description FOR OVERSEAS CUSTOMERS: If you use the Metric System, see the American-to- The Hy-Gain 203BA-S is an optimum spaced, Metric conversion table in the rear of this three-element, 20-meter beam. A beta match manual. Most illustrations in this manual will...
- Page 2 All tubing supplied with the Model 203BA-S is Select the two 45" boom sections (2" diameter taper-swaged and designed to telescope together. tubing) and slip the unswaged end of each into It is held in place with compression clamps. the boom-to-mast bracket. Line up the holes in Make all measurements as accurate as possible the boom with the holes in the boom-to-mast using the dimensions given in this manual for...
- Page 3 Figure 2 Boom-To-Mast Bracket Assembly One hole will be used for attaching the beta match in a later step. This end of the boom will be known as the reflector end. Refer to Figure 5. DO NOT tighten all the screws in the boom- to-mast bracket, at this time.
- Page 4 Figure 3 Compression Clamps Tighten the clamp until the inner tube cannot Assembly of the Reflector be turned in the outer tube. DO NOT tighten Select a set of small sized element-to-boom the compression clamps until instructed to do brackets (marked with a No.
- Page 5 Reflector Element and Director Element Item No. Description Bracket, Element-To-Boom, #13 Bracket, Element-To-Boom, #14 Insulator (for driven element) Bolt, hex head, 1/4" - 20 x 3/8" (anchor bolts) Figure 4 Element-To-Boom Bracket Assembly Check to see that the Reflector Element will Measure 81"...
- Page 6 Figure 5 Overall View of Assembly...
- Page 7 Figure 6 Beta Match Assembly Assemble a 1' compression clamp as shown in Assembly of the Director Figure 3. Slip the assembled clamp over the Select the remaining set of element-to-boom end of the DI. brackets (marked with a No. 13) LOOSELY assemble on the boom 103 1/4"...
- Page 8 Securely tape the coax to boom using Rope Dampening Installation weatherproof tape. Select the rope end cut it into ten equal lengths of six feet. Slip a length of rope into A BN-86 balun may be used to attach the the end of each element.
-
Page 9: Lightning Protection
A proper ground or for ordering replacement parts, consists of a 1/2" x 8' ground rod driven into Hy-Gain the ground 12 inches from the base of your 308 Industrial Park Road tower or mast. Connect the rod to the tower or... - Page 10 Item Part No. Description Qty 102734 Bracket, cast aluminum ..............2 172735 Bracket, casting-to-boom ..............1 172732 Clamp, boom-to-bracket..............1 170410 Tube, aluminum, 2" x 57"..............2 170048 Tube, aluminum, 2" x 45"..............2 16559 Bracket, element-to-boom, #13............4 165920 Bracket, element-to-boom, #14............2 190401 Tube, aluminum, 1 1/4" x 72", swaged, R1 ........2 174862 Tube, aluminum, 7/8"...
- Page 11 Product Update Compression Clamps 308 Industrial Park Road Starkville, MS 39759 USA (662) 323-9538 FAX: (662) 323-6551 TUBING CLAMP ADDENDUM The 1 1/4, 1, 3/4, 1/2 inch compression clamps and associated stainless GENERAL steel hardware have been deleted from this product and have been replaced by stainless steel tubing (hose) clamps.
- Page 12 Select the proper size tubing clamp as listed in the charts to replace the Installation of compression clamps in the manual. When installing the clamps, place the Tubing Clamps clamp near the tube end with the top of the clamp over the slot in the tube as shown in the illustration.
Need help?
Do you have a question about the LJ-203BA and is the answer not in the manual?
Questions and answers