SteppIR DB11 Yagi Assembly Manual

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DB11 Yagi
Assembly Manual
REV 4
01/09/20
nd
SteppIR Communication Systems | 13406 SE 32
St. Bellevue, WA 98005 | 425.453.1910 | sales@steppir.com

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Summary of Contents for SteppIR DB11 Yagi

  • Page 1 DB11 Yagi Assembly Manual REV 4 01/09/20 SteppIR Communication Systems | 13406 SE 32 St. Bellevue, WA 98005 | 425.453.1910 | sales@steppir.com...
  • Page 2: Table Of Contents

    Securing the coax and control cable to the boom …………………………………………………………. 16 Wiring the element housings…………………………………………………………………………………. DB25 connector wiring diagram……………………………………………………………………………… 17 Preliminary wiring and EHU testing………………………………………………………………………….. 18 Preparing the telescoping poles……………………………………………………………………………… 21 Mounting the poles to the EHUs……………………………………………………………………………... 23 Limited Warranty………………………………………………………………………………………………. Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 3: Component Checklist

    DB11 Yagi – Component Checklist (72-2011-01) Use this list to ensure that everything you ordered has been included in the shipment It is a good idea to mark the options you have purchased, for future reference. MAIN ANTENNA BOX PART NUMBER...
  • Page 4: Antenna Kit Contents

    DB11 Yagi – Component Checklist (Continued) (72-2011-01) BOOM BOX PART NUMBER ITEM 10-1202-01 1-3/4 inch x 72 inch boom section 10-1202-61 1-3/4 inch x 62 inch boom section 10-1203-31 1-1/2 inch x 8 inch boom splice DB11 Yagi - Antenna Kit Contents...
  • Page 5 09-1025 Conical Grinding Stone 10-1028-21 Anti-Seize Stick Polyolefin Heat Shrink 1-1/2” x 3” 10-1059-01 10-1619-01 Coax switch bracket 60-0150 Cap for return tube .843 60-1006-41 Boot, DB11 return 60-6000-50 Hose Clamps, Type M Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 6: Ehu Wiring Instructions

    Figure 1.2 Figure 1.1 6 Pin Header Wiring Sequence 4 Pin Header Wiring Sequence (EHU’s with Relays) (EHU’s without Relays) BLACK GREEN WHITE BLUE BROWN BLACK GREEN WHITE TERMINAL PLUG Figure 1.5 TERMINAL HEADER Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 7 Repeat wiring and coax seal preparation for each EHU. When finished, the EHU’s will be secured to the aluminum element mounting plates. This is covered in detail later. Figure 1.6 Figure 1.7 Figure 1.8 Figure 1.9 Figure 1.10 Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 8: Recommended Tools

    Use of a level for adjusting the Element Housing Units (EHU’s) is highly recommended. This is a surprisingly accurate and consistent method. Simply place the level on the mast plate and adjust each element accordingly. Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 9: Boom Assembly

    • Repeat this for each section until the boom is completely assembled as shown in figure 2. Figure 2 Boom Assembly QTY 4: 60-0065 5/16 x 3-1/2 BOLT Add lubricant here QTY 16: 60-0041 1/4 Washer QTY 4: 60-0030 1/4 Nylock Nut Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 10: Mast Plate Assembly

    Figure 3 Mast Plate Assembly QTY 8: 10-1601-22 QTY 8: 60-0065 2” Aluminum Saddle 5/16 x 3-1/2 BOLT QTY 1: 10-1021-43 Boom Plate QTY 8: 60-0030 1/4 Nylock Nut Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 11: Element Housing Spacing

    4 below. All dimensions are taken from the center of the element, which is the center-point of the fiberglass tube that houses the copper beryllium strip, both at the EHU and at the return EST. Figure 4 Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 12: Element Housing Assembly

    5/16 x 3-1/4 Bolt QTY 8: 60-0030 QTY 1: 70-2030-01 1/4 Nylock Nut Element Mounting Plate w/Center Gasket QTY 6: 60-0046 5/16 Nylock Nut QTY 10: 10-1601-03 1-3/4 Aluminum Saddle QTY 10: 60-0019 5/16 Nylock Nut Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 13: Wiring The Control Cable

    DO NOT secure the lid and gasket to the enclosure until the final testing has been completed. Figure 6 Control Wiring for Coax Antenna Switch COAX Switch w/Housing Removed Control cable to Connector Junction Box Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 14: Mounting The Coax Switch

    Coax Switch Bracket QTY 4: Flat Head Screw (Located in small Ziplock bag QTY 2: 60-0113 #10 x 5/8 SS Pan Head DIRECTOR EHU QTY 2: 60-0046 QTY 2: 10-1601-03 5/16” Nylock Nut Aluminum Saddle Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 15: Wiring The Coax Cable

    Figure 9 Bottom View of Coax Antenna Switch Director EHU Feed from shack OUT 2 OUT 3 Control cable that will be OUT 1 wired into the connector box. Reflector EHU Driven EHU Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 16: Securing The Coax And Control Cable To The Boom

    By default your antenna comes with a 25 pin connector which requires soldering. A solderless Dsub field splice connector is available as an option. Pay close attention to match the wire color with the correct pin number, incorrect wiring may damage your controller or EHUs! Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 17: Db25 Connector Wiring Diagram

    Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 18: Preliminary Wiring And Ehu Testing

    9. Set the controller to any frequency in the 17m band. 10. When the controller indicates it is no longer trying to move the elements (the LED labeled “Tuning” will stop flashing) RECONNECT the control cable again. Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 19 20m and is disconnected by the Coax Switch Box. The REF EHU should now measure as an OPEN circuit (very high resistance, no continuity) between the coax connector center pin and EACH of the copper tapes. Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 20 25. Push “POWER” and the controller will now turn off. DISCONNECT the control cable. 26. This concludes the tests and verifies the antenna is wired correctly and that all of the relays are switching correctly. Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 21: Preparing The Telescoping Poles

    • Once the heatshrink has cooled, follow the instructions on the following page to prepare the fiberglass elements. Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 22 Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 23: Mounting The Poles To The Ehus

    Using the 1/4 inch bolts, nuts and return brackets, secure the element return tubes to the boom as shown earlier in figure 5. Figure 12 Figure 11 Black raised ring used to keep rubber boot secure. Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 24: Limited Warranty

     This can be obtained at www.steppir.com. Shipping instructions will be issued to the buyer for defective components, and shipping charges to the factory will be paid for by the buyer. SteppIR will pay for standard shipping back to the buyer. The manufacturer assumes no further liability beyond repair or replacement of the product.
  • Page 25 Tech Support: www.steppir.com/support | 425.453.1910 | support@steppir.com...
  • Page 26 SteppIR Communication Systems | 13406 SE 32 St. Bellevue, WA 98005 | 425.453.1910 | sales@steppir.com...

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