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Related Manuals for SteppIR SmallIR
Summary of Contents for SteppIR SmallIR
- Page 1 SmallIR Instruction Manual 13406 SE 32nd Street; Bellevue, WA 98005 www.steppir.com Tel: (425)-453-1910 FAX: (425)-462-4415 Page 1 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com Revision 2.1 04/15/2020...
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Page 2: Table Of Contents
SteppIR - Why Compromise? SteppIR Design SmallIR vertical components Antenna Assembly 7-13 Ground mounting of the SmallIR vertical Installing the optional 1:1 balun More about choosing radial systems for ground / above-ground installations 16-19 Using a vertical in or on salt water... -
Page 3: Steppir - Why Compromise
SteppIR to be a commercially feasible product. The current and future SteppIR products should produce the most potent single tower antenna systems ever seen in Amateur Radio! We thank you for using our SteppIR antenna for your ham radio endeavors. -
Page 4: Steppir Design
Optimal performance is then possible on all frequencies with a lightweight, compact antenna. Also, since the SteppIR can control the element lengths, a long boom is not needed to achieve near optimum gain and front to back ratios on 20 - 10 meters. -
Page 5: Smallir Vertical Components
The items in blue represent options available for the SmallIR—you will need to check these items off only if you purchased them. DESCRIPTION PART # ✓... - Page 6 10-32 x 7/8” Pan Philips Screw 60-0018 10-32 Flat Washer SmallIR Coil Hardware Kit 72-0003-31 PART # DESCRIPTION ✓ 60-0019 10-32 Nylock Nut 60-0090 10-32 x 1.5” SS Screw 60-1004-01 0.5” Plastic Spacer Page 6 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
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Page 7: Antenna Assembly
Note: There are 4 blue colored lines imprinted on the tubing. The joint is considered done being heated and waterproof when the lines change color to a yellowish green. Each line needs to change in color to ensure even adhesion temperatures. Page 7 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com... - Page 8 1/4” of insulation from the ends of each of the wires. Wire the connector Black, Red, Green, White • using the image to the right as a reference. Page 8 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
- Page 9 Note: If you purchased the 40m or 80m coil • option, leave out the four screws indicated in the picture on the left as these holes will be used for mounting the coil housing. Page 9 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
- Page 10 Position the mounting pole (machined end up) so that the bot- tom of the element housing is 6 inches above the ground. After the mounting post is in place and level, you are ready to erect your SteppIR Vertical! Mount EHU Onto the Mounting Post A rubber quick-disconnect boot must be installed (small end first) on the 1-1/2”...
- Page 11 (EST) until it is firmly bottomed. Push the rubber boot down firmly onto the element hous- ing tube until it bottoms out and tighten the two clamps. This boot will prevent water from getting into the element housing unit (EHU). Page 11 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
- Page 12 CONNECTING CONTROL CABLE TO THE OPTIONAL DB25 FIELD SPLICE The optional DB25 Field replaces the standard connector with a con- venient solder-less connection of the control cable to the SteppIR con- troller. If you purchased this option, follow the steps below to connect it to your control cable.
- Page 13 Antenna Assembly CONNECTING CONTROL CABLE TO THE DB25 FIELD SPLICE Refer to the table below for the correct wiring sequence when connecting your control cable to your 25 pin connecter. Page 13 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
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Page 14: Ground Mounting Of The Smallir Vertical
(Figure 13), you will notice there are 4 wires per set, all soldered and crimped to a lug connector. Ground Radials (4 - 16’ - 16ga insulated Ground Mounting Pole Figure 19 Figure 17 Figure. 15 Page 14 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com... -
Page 15: Installing The Optional 1:1 Balun
BigIR without the 80m coil. Figure 27 shows how to connect the balun with a BigIR and op- tional 80m coil. Figure 25 Figure 26 Figure 27 Page 15 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com... -
Page 16: More About Choosing Radial Systems For Ground / Above-Ground Installations
This is not an in depth publication but simply a general guide on installing and using the SteppIR verticals. There is much more information available in various publications if you need it. The ARRL Antenna Handbook is a good source for additional information. - Page 17 3. If only a few radials are going to be used, they need not be very long 4. If you have very good earth (very few of us actually do), you can obtain good performance with very few radials. Graph 1 Number of Radials Number of radials Page 17 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
- Page 18 0.48 0.32 0.24 0.16 0.08 Graph 3 Number of Radials (N) Number of radials Page 18 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
- Page 19 Graph 4 Radial Droop Angle Antenna Impedance 0° 22 Ohms 10° 28 ohms 20° 35 ohms 30° 47 ohms 40° 53 ohms 50° 55 ohms Note: above 50° results in diminishing returns Page 19 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com...
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Page 20: Using A Vertical In Or On Salt Water
When using a small metal float (3 ft x 3 ft is just enough to “connect” to salt water), you want to be certain that the metal does not corrode over time. For long term immersion, Monel is a good (but fairly expensive ) choice. Page 20 Support: steppir.com/support ⚫ Tel: 425.453.1910 ⚫ support@steppir.com... -
Page 21: Steppir Warranty
(2) years from date of sale. Do not modify this product or change physical construction without the written permission of SteppIR Antennas Inc. This limited warranty is automatically void if the following occurs: improper installation, unauthorized modifications, physical abuse or damage from severe weather, beyond the manufacturer's control.
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