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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
Note: Take precautions when handling and further processing fiberglass material. It
is recommended that gloves be used when working with this material.
Price: $ 4.95 US
Cubex Co., Inc.
CUBEX -
CUBEX
Quad Antennas
MK II – PT3
MK II – PT5
Safety warning
MARK II Series
06-03 Rev 9
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Related Manuals for CUBEX MARK II Series
Summary of Contents for CUBEX MARK II 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 The CUBEX MK II PT 3 and 5 Band QUAD ANTENNA FOREWORD: The CUBEX MK II is a pre-tuned Quad Antenna. All elements are factory measured and under normal conditions should not require adjustment. Elements are designed for operation in the center of each band. Should one wish to favor the low or high end of one or more bands, limited “tuning”, is provided for at Note 2 at the end of the Instructions.
- Page 3 The wire element ends of the 20 meter and 10 meter DRIVEN ELEMENTS have extra long “fold backs”. These provide the slight added length needed for attachment to the Cubex Matching Transformer. When all DRIVEN ELEMENTS are terminated separately, this excess fold back is simply trimmed off and discarded.
- Page 4 Twenty meters is about 50 ohms, Fifteen meters = 75 ohms and Ten meters is about 110 ohms. The CUBEX matching transformer is a combination unbalanced to balanced and impedance transformation device. It will allow for single feed line with acceptable SWR while using 3 or 5 bands of operation.
- Page 5 Note 3- 17 meters should not require any stub and match okay with 50 ohm cable. Dimensions above Note - Cables supplied by Cubex may vary in length (longer) from above as we use a special RG-11 coaxial cable with a VF of 0.72 Cubex Co., Inc.
- Page 6 Instructions: Cubex - MARK II Series QUAD LOOP DIMENSIONS: Location of Cubex Matching Transformer when used. BAND Reflector Driven Ele. Purposely left blank – Use to record specific data as assembled. Antenn 6" dia Coil Excess Mast Cable Cubex Co., Inc.
- Page 7 8 feet. Heavy duty booms (2” x 0.125) do not require the bridge truss arrangement. A good grade of non-metalic outdoor grade nylon or dacron line may be used. (Cubex Dacron Antenna Rope is ideal and supplied with our larger antennas).
- Page 8 Instructions: Cubex - MARK II Series Stranded Wire Element Preparation CAUTION: Working with stranded antenna wire certain precautions are required. First to prevent wire strands from unraveling when cutting to proper lengths it is important to flow solder about ½” either side of the cut point. Be careful as the wires may be very hot after soldering.
- Page 9 Instructions: Cubex - MARK II Series Connecting Element Wires - Crimp Splice Pull wires through sleeve and bend to temporarily hold position Reflector / Director Trim wire ends after Fig. 3a Connections - splice completing adjustment of or crimp sleeve...
- Page 10 Instructions: Cubex - MARK II Series Cubex Engineering 2 ELEMENT QUAD DIMENSIONS (PER SIDE) BAND 10 M Inches Inches Inches Inches Inches Reflector 107.50 273.05 124.00 314.96 145.00 368.30 170.50 433.07 218.00 553.72 Driven El 105.00 266.70 120.75 306.71 142.00 360.68 166.50 422.91 212.00 538.48...
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