Related Manuals for KLM 2M-14C
Summary of Contents for KLM 2M-14C
- Page 1 12188 KLM 2M-14C CIRCULAR POLARIZED ANTENNA ASSEMBLY TEXT April 22, 1985 P.O. Box 816, Morgan Hill, California 95037 • (408) 779-7363...
- Page 2 KLM 2M-14C CIRCULAR POLARIZED ANTENNA The KLM 2M-14C is a circular polarized antenna ideally suited for satellite and terrestrial communications. The characteristic pattern of the 14C is not half vertical, half horizontal, but equal in all planes within 3 dB. Circular wavefronts will exhibit a "left- hand"...
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Page 3: Specifications
Thoroughly unpack shipping box and check components and hardware against the Parts List. If there is a difference, look for a "Factory Update/Change" sheet accompanying the assembly instructions prior to contacting your KLM dealer or the factory. -
Page 4: Boom Assembly
BEFORE YOU BEGIN - cont'd For the best results, use the pictorials to identify the various antenna components before you begin assembly. BOOM ASSEMBLY The end of each boom section to be assembled is marked with a letter in felt pen. Assemble boom sections matching like letters ("A"... - Page 5 DRIVEN ELEMENT ASSEMBLY - cont'd Select one of the folded dipoles and insert the reinforcing inserts into the tubing ends, aligning the holes. Mount the dipole element to the insulator using the 8-32 x 1" screws, nuts, and lock washers. See the sketch above for the correct hardware arrangement. Repeat Steps 1 and 2 for other dipole assembly.
- Page 6 Separate the parasitic elements into two groups of vertical and horizontal elements. Install one group (vertical or horizontal) at a time. Locate the longest 3/16" diameter element (reflector). Slide on one of the "button" mounting insulators, small end first. Push the insulator to the element balance point.
- Page 7 DIMENSION SHEET KLM 2M-14C ELEMENT SPACING - FEET/INCHES FROM ELEMENT LENGTHS IN INCHES: BOOM REAR: X X = FEEDPOINTS. For 50 ohm feedline, each set of feedpoints has an RG-142 4:1 Coax Balun rated at 2 KW PEP.
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Page 8: Installation
Keep plate at least 1/2" from elements. Secure with 1-1/2" U-bolts. The 14C, like any antenna with vertical elements, MUST BE MOUNTED ON A NON-CONDUCTIVE MAST. Thick wall fiberglass tubing is ideal (available from KLM) although hardwood rod and PVC pipe of suitable strength have also been used. Use of a metal mast will adversely affect VSWR, gain, pattern, etc., acting just like an untuned... -
Page 9: Hints And Tips
HINTS AND TIPS The 14C may also be used as two separately fed antennas. Remove the polarity switcher board and matching harness. Re-install the balun to the horizontal feedpoints. Run separate 50 ohm feedlines. Attach solder lugs to braid and center conductor. Attach Gnd/Braid lug to insulator mounting screw stud. -
Page 11: Parts List
PARTS LIST PART DESCRIPTION KLM PART NUMBER QUANTITY Swaged Tube, 1-1/2" O.D. x 64" Straight Tube, 1-1/2" O.D. x 31" Dipole Element, 3/8" O.D. x 72" Element, 3/16" O.D. x 40-5/8" Element, 3/16" O.D. x 35-5/8" Element, 3/16" O.D. x 35-3/8"...