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INSTRUCTIONS:
Please read through these instructions completely before
starting your installation.
Antenna work is dangerous. Always wear an OSHA approved
safety harness with the appropriate nylon or wire rope safety
lanyards to protect yourself and your helpers from falls. Also all
helpers on the ground should be wearing hard hats to protect
them from falling objects such as tools etc.
Cubex Co., Inc. has no control over the conditions at the antenna site and therefore
can not be held responsible for any damage or injury to persons or property.
If for any reason you do not understand any part of these instructions, or your
installation is different and these instructions do not pertain to your situation. Do not
hesitate to call Cubex Co., Inc. for assistance at (561) 748-2830; or email:
cubexco@aol.com
Note: Take precautions when handling and further processing fiberglass material. It
is recommended that gloves and dust mask be used when cutting and drilling this
material.
Price: $ 4.95 US
Cubex Co., Inc.
CUBEX -SkyMaster Series
CUBEX
Quad Antennas
SKYMASTER III– 3B
SKYMASTER III– 5B
3 Element ; 3 and 5 band Quad
Plus 6 meters
Safety warning
05-06 Rev 0
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Related Manuals for CUBEX SkyMaster Series
Summary of Contents for CUBEX SkyMaster Series
- Page 1 Cubex Co., Inc. has no control over the conditions at the antenna site and therefore can not be held responsible for any damage or injury to persons or property.
- Page 2 Instructions: Cubex SkyMaster Series INTRODUCTION The construction instructions and dimensions contained in this Manual are intended primarily for use with the basic SKYMASTER QUAD KIT. The design data and dimensions can, however, also be used with other quad support structures.
- Page 3 Instructions: Cubex SkyMaster Series found in TABLE III. 2. To assure uniform drilling of any one type element set, the following procedure is recommended. Select four (4) of the previously prepared arms and line them up side by side with the butt end against a solid stop to assure common length and alignment.
- Page 4 Instructions: Cubex SkyMaster Series Element Winding Fixture Start – all bands Four (4) loops will complete the four sides of each quad loop - Now using the dimensions in TABLE IIb (per side) Mark the end points of each band element by measuring from the center nail half the length of the side in each direction.
- Page 5 Instructions: Cubex SkyMaster Series the main spool. Allow enough connecting wire at the start, wrap around the nails so as to have four (4) sides and finish with a “tail” of connecting wire – now cut the wire. Elements should also be clearly identified, i.e., 10 mtr. driven ele.; 10 mtr. Refl. Ele.; 10 mtr.
- Page 6 FEEDING THE, 3 ELEMENT QUAD. The feed-point impedance’s of this antenna will vary with each band. Twenty meters is about 50 ohms, Fifteen meters about 75 ohms and Ten meters is about 110 ohms. The CUBEX matching transformer is a combination Cubex Co., Inc.
- Page 7 Match information see Note No. 3 at end of instructions. The CUBEX matching transformer is an excellent choice for matching the antenna system to the transceiver. It allows for a single FEED LINE and matches the CUBEX antenna without the hassle of complicated matching networks.
- Page 8 Instructions: Cubex SkyMaster Series Note: These terminals are not supplied when Cubex Matching Transformer is ordered with Antenna Matching Stub dimensions: Table I Electrical Quarter wave 75 ohm coax ; velocity factor = 0.66 BAND CABLE TYPE LENGTH (IN.) LENGTH (CM)
- Page 9 Instructions: Cubex SkyMaster Series Table IIa 3 ELEMENT QUAD Total Length Cutting Chart * BAND 10 M Reflector 39 ft 44 ft 50 ft 59 ft 80 ft Driven El 38 ft 43ft 48 ft 58 ft 74 ft Director 1...
- Page 10 Instructions: Cubex SkyMaster Series QUAD LOOP DIMENSIONS: Location of Cubex Matching Transformer when used. BAND Reflector Driven Director 1 Director 2 Additional notes about Feeding quads: Separate lines are to be preferred over the simplified “Single FEED LINE” method to a common juction point of elements. This is not to say that the “SF” system is unacceptable, but one must be prepared to accept some SWR compromise when using it If difficulty is encountered in LOADING and/or SWR with either system.
- Page 11 Instructions: Cubex SkyMaster Series TRUSS ARRANGEMENT 3 element Quad ELEMENT Spacing 10’ 8’ Dacron REFL Antenna Rope 6M D1 6M Drvn El 48” Eyebolt 18 ft Boom 7’-6” 7’-6” Bridge Truss Mast Bracket In the SKYM III and SKYM IV antenna models an appropriate length of high quality UV resistant Dacron antenna rope is supplied along with necessary eyebolts to complete the truss guying of the boom.
- Page 12 Instructions: Cubex SkyMaster Series ADDENDUMS Joining Element Wires Crimp sleeve Pull wires through sleeve and bend Fig. 3a to temporarily hold position Trim wire ends after completing adjustment of tension Alternate method- Reflector / Director Connections - splice Element Wires - "Line men's"...
- Page 13 Instructions: Cubex SkyMaster Series 6 METER ARM ASSEMBLY 6 meter arm assembly #10-32 x 1-0” phl hd screw Note: This 6m option requires the addition of two sets of spreader arms to be added to holes drilled in the boom.
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