Ground Station Yagi Antenna Datasheet

0139-EX-CN-2018 Text Documents

Arizona State University

2018-02-12ELS_204767

M2 Antenna Systems, Inc. Model No: 436CP30 SPECIFICATIONS: Model ......................................... 436CP30 Input Connector ..........................“N” Female others opt. Frequency Range ....................... 432 To 440 MHz Power Handling ..........................600 Watts *Gain .......................................... 15.50 dBic Boom Length / Dia ......................117” / 1” Front to back .............................. 18 dB Typical Maximum Element Length..........12-7/8” Elipticity ...................................... 1.5 dB Typical Turning Radius: ..........................62-5/8” Beamwidth ............................... 30° Circular Stacking Distance .......................51” High & 51” Wide Feed type ................................... Folded Dipole Mast Size ....................................1-1/2” to 2” Nom. Feed Impedance. ....................... 50 Ohms Unbalanced Wind area / Survival ...................1 Sq. Ft. / 100MPH Maximum VSWR ........................ 1.6:1 Max Weight / Ship Wt. ........................5 Lbs. / 6 Lbs. *Subtract 2.14 from dBi for dBd FEATURES: The 436CP30 is a practical sized, yet high performance circular polarized antenna with a remarkably clean pat- tern. The pattern is important in order to match the antenna’s noise temperature with modern low noise preamps. This antenna is ideal for satellite work but is also excellent for terrestrial uses like ATV, repeater operation, and long haul tropo DX. The CNC machined driven element module is O-ring sealed and weather tight for low maintenance and long-term peak performance. Internal connected are encapsulated in a space-age silicone gel that seals out moisture and improves power handling. The 3/16” 6061-T6 rod elements are centered to minimize interaction and maintain good ellipticity. Insu- lators are UV stabilized and locked in place with stainless keepers. Rugged construction, uncompromising performance for the boom length: that's the M2 436CP30! M2 Antenna Systems, Inc. 4402 N. Selland Ave. Fresno, CA 93722 Tel: (559) 432-8873 Fax: (559) 432-3059 Web: www.m2inc.com ©2014 M2 Antenna Systems Incorporated 12/17/14 Rev.02

436CP30 ASSEMBLY MANUAL TOOL REQUIRED FOR ASSEMBLY: screwdriver, 11/32 nut driver or wrench, 7/16” and1/2” socket or end wrenches, measuring tape. 1. Assemble the boom using 8-32 X 1-1/4 screws and locknuts to join sections. Sections may may be swaged to each other or use 7/8” internal splice sections. Note: If mounting antenna to a standard H-frame with a T-brace kit, it is important to install the T-brace coupling bars to antenna before elements. Refer to H-Frame and T- brace drawings for placement and more information. ASSEMBLING THE HORIZONTAL ELEMENTS 2. Lay out the elements by “H” length and position as shown the DIMENSION SHEET. Start with the reflector (longest) element. Balance it on your finger to find rough center and push on a black button insulator to about 1/2” off center. Push the element through the holes 1.937” from the rear of the boom and install the second button, snugging it up into boom. DO NOT BOTHER CENTERING the element at this time and DO NOT INSTALL the stainless steel shaft retainers yet. It is easier to do it after all the horizontal elements are installed in the boom. 3. Install the 3/16” rod DRIVEN ELEMENT as you did the reflector. Then continue with the installation of the DIRECTORS. Note that the Director Elements do not consistently diminish in length from rear to front, so pay close attention to length and position. 4. Now begin centering the elements. Use a tape measure to EQUALIZE the amount the element sticking out on each side of the boom. Once you have all the elements centered, sight down the element tips from the rear comparing each side. Look for any obvious discrepancies and correct if found. 5. Stainless steel SHAFT RETAINERS lock the elements in place. They should always be used for permanent and long term antenna installations. For portable or temporary use, the button insulators are adequate for holding the elements and the retainers may be left off. To install the stainless steel SHAFT RETAINERS, use thumb and forefinger to hold the retainer over the end of the PUSH TUBE ( 3/8" x 3" tube, supplied in the kit), internal fingers on retainer dished into tube. HOLD THE ELEMENT FIRMLY TO PREVENT IT FROM SLIDING OFF CENTER and press the retainer onto the element end and continue until retainer butts on insulator button. Locking pliers, lightly clamped up against opposite button insulator will help maintain center reference (if you push the first retainer too far, remove element from boom, push retainer completely off the element, and start over). Install another retainer to the opposite side of the element. Continue installing retainers until all elements are secured. 6.Moun ASSEMBLY to the HORIZONTAL DRIVEN ELEMENT BLOCK / ROD TOP of the boom using a single 8-32 X 1-1/4" screw. Orient the block with the two balun connectors facing to rear.

436CP30 ASSEMBLY MANUAL 7. Install the 8-32 x 1/4” set screws (internal Allen head - tool supplied) into the SHORTING BARS. Slide the bars onto the 1/8" Driven Element Block Rods and the 3/16" driven element rod. Position the Shorting Bars at 1/8" from the tips of the 3/16" rods. Align the bars with each other and tighten the set screws. ASSEMBLING THE VERTICAL ELEMENTS Note: The vertical element set is shifted forward on the boom by 1/4 wavelength.This increases isolation between element planes, improving circularity and ease of phasing / matching the two element sets. 8. Repeat steps #2 through #5 for the Vertical elements, using the Dimension Sheet as your guide to lengths and spacing. INSTALLATION OF THE VERTICAL DRIVEN ELEMENT BLOCK DETERMINES THE CIRCULARITYOF THIS ANTENNA. THE ORIENTATION OF THE BLOCK FOR RHC - RIGHT HAND CIRCULARITY, IS SHOWN ON THE DIMENSION SHEET AND DRAWING AND DESCRIBED BELOW: 9. Viewed from the rear of the boom (rearmost Reflector HORIZONTAL), the VERTICAL Driven Element Block mounts to the RIGHT hand side of the boom with the two Balun connectors oriented to the REAR. Secure with 8-32 x 1-1/4” screw. Install the Shorting Bars as in step #7. 10. Before installing the Baluns and Matching / Phasing Harness, thread 3/8” SEAL NUTS fully onto all connectors, with the black Neoprene face of the nuts facing out. Attach Baluns and Phasing lines to the Driven Element Blocks and Junction Block as shown on the Dwg. Tighten the connectors gently using a 7/16" end wrench. Once the connectors are tight, back the Seal Nuts out and finger-tighten firmly up against the face of the connectors (or tighten gently with 1/2” end wrench). A lot of torque is unnecessary. Depending on model and polarity, the Vertical balun may loop around another element. This is normal. Form balun coax until it is close to the boom and secure with a nylon cable tie. Also secure the other balun and the matching / phasing harness coax with cable ties. Ties should be snug but not crushing or kinking the coax. 11. Use good quality coax and “N” connector for your feedline (see Installation Tips). Secure feed coax near connector on Junction Block, to provide stress relief. Allow about 60” of coax to hang in a loop between the rear end of the boom and the reattachment point (at least 12” beyond element tips) on the mast or crossboom. Do not route feedline to boom to mast plate as exiting antenna here will adversely affect circular field. 12. The boom to mast plate is normally mounted to the boom at the balance point. Since the feed line represents significant weight it is best to have it attached and fastened to the boom with cable ties before final mounting the plate. Use two 1" U-bolts and the stainless nuts and lock washers provided. DO NOT OVER TIGHTEN. 1 -1/2” and 2” U-bolts (and stainless steel nuts / lockwashers) are provided for mounting the antenna to your NON-CONDUCTIVE mast or crossboom.

436CP30 ASSEMBLY MANUAL INSTALLATION TIPS 13. The 436CP30 is a circular polarized antenna and creates a field in all planes or polarities. Performance DETERIORATES SIGNIFICANTLY if it is mounted on a metal (conductive) mast or crossboom. A mast or crossboom of any NON-CONDUCTIVE material must be used. Fiberglass is the prime choice for its strength and weather resistance. Mount the 436CP30 so that element tips are at least 12” from any conductive material (mast, tower, feedline, etc.). 14. Recommended feedlines, in order of preference: Andrews or Celwave 1/2” hardline Times FM-8 or Belden 8214 Try to keep the cable run to under 100 ft. to prevent excessive signal loss. 15. To maintain proper phasing when stacking two or more antennas, mount each with the same orientation of Driven Element Blocks. DO NOT MOUNT IN MIRROR IMAGE. See the Specification Sheet for stacking distances. For more detailed stacking information contact M2. M2 ANTENNA SYSTEMS, INC. 4402 N. Selland Ave. Fresno, CA 93722 (559) 432-8873 Fax: 432-3059 www.m2inc.com Email: sales@m2inc.com

DRIVEN ELEMENT BLOCKS SHOWN POSITIONED FOR RIGHT HAND CIRCULARITY ELEMENT SPACING ELEMENT LENGTH V H H | REF 1.937 12.875 MAIN FEED LINE ——¥*~7 SHORTING BARS 1/8" FROM_ ENDS P @% D.E. 8.063 3 12.75 REF 8.688 t ooo D1 9.50 12.25 SHORTING BAR D.E. 14.437 12.75 15.0 [ C 11.937 D1 15.813 o 12.25 20.688 ———— o i 11.375 21.125 11.937 26.688 ———— o s 11.50 27.188 11.375 33.188 0 11.50 35.0 ———— s 11.375 41.50 0 MOUNTING POINT a2813 Ee 11.375 APP. 44" FROM ====— 11.062 REAR 49.313 a 11.062 51.062 ———— s 11.125 57.562 o 11.125 Z DECIMAL TO FRACTION CONVERSION 60.562 11.062 .062 = 1/16" 67.063 o 425 = 1/8‘ , 70.188 11.062 10.813 188 = 3/16" 250 = 1/4" 76.688 6 10.813 79.50 10.750 .313 = 5/16” .375 = 3/8" 56.0 o 437 = 7/16" 10.750 59.937 10.813 .50 = 1/2" .562 = 9/16" _ s 96.437 0 10.813 625 = 5/8 100.562 10.813 .688 = 11/16" .750 = 3/4" o 107.063 10.813 .813 = 13/16" 110.50 11.313 .875 = 7/8" 116.75 0 .937 = 15/16” 11.313 1.00 = 1" NOT TO SCALE

436CP30 PARTS & HARDWARE DESCRIPTION QTY. Boom section, 1 x .058 x 60" PLAIN .......................... 1 Boom section, 1 x .058 x 59-1/8" SOE ........................ 1 Boom to mast plate, 3 x 4 x .125" (M2APT0019) ......... 1 Elements, 3/16" alum. rod x (see dims.) ...................... 30 Driven element block assembly .................................... 2 `T' Block assembly (SADE0060) ................................. 1 Balun, RG-6U halfwave length ..................................... 2 Phasing line, RG6-U quarterwave length .................... 1 Phasing line, RG6-U three quarterwave length ............ 1 U-bolt and cradle, 2” ..................................................... 2 U-bolt, 1" no cradle ...................................................... 2 Assembly instructions .................................................. 1 IN HARDWARE BAG Shorting bars, .75 x 1.532 x .250" (M2ASB0080) ......... 4 Button insulators, 3/16" black ...................................... 60 Shaft Retainers, 3/16" ss .............................................. 60 Nut, 5/16-18 ss ............................................................. 4 Lockwasher, 5/16" ss ................................................... 4 Screw, 8-32 x 1-1/4" panhead ..................................... 5 Set screw, 8-32 x 1/4" ss ............................................. 8 Locknut, 8-32 ss ........................................................... 2 Nuts, 1/4-20 ss ............................................................. 4 Lockwasher, 1/4-20 ss ................................................ 4 Seal nuts, 3/8-32 gold zinc ........................................... 8 Allen wrench, 5/64" ..................................................... 1 Push tube, 3/8 x 3" (for keeper installation) .................. 1 Cable ties, 8" ................................................................ 4 M2 ANTENNA SYSTEMS, INC. 4402 N. Selland Ave. Fresno, CA 93722 (559) 432-8873 Fax: 432-3059 www.m2inc.com Email: sales@m2inc.com


Document Created: 2014-12-17 16:12:09
Document Modified: 2014-12-17 16:12:09
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