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Summary of Contents for Alpha Antenna S9
- Page 1 User Guide for the Alpha S9 Antenna (S9v33+ & S9v43 versions) Manufactured by: Alpha Antenna 1.888.482.3249 Website: http://AlphaAntenna.com User Guide Version 1.1 May 20, 2015 Page 1...
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Page 2: Table Of Contents
Product Overview ........................... 3 Safety Tips ............................3 Coax Cable ............................4 Naturally Occuring Resonance ....................... 4 S9 as a Dipole or 3 Element Vertical Beam Yagi ................5 Multi-band Operations ........................5 Balun/Unun ............................. 6 Ground or Elevated Mount ......................6 Radials............................. -
Page 3: Introduction
Appendix 1. The S9 is shipped with all components you need to install the antenna. You will need to furnish coax cable, an antenna tuner, a balun/unun, a pipe or mast with associated... -
Page 4: Coax Cable
If an accident should occur with the power lines, call for qualified emergency help IMMEDIATELY. Coax Cable For top performance, the S9 should be fed with a quality, low-loss 50-ohm coaxial feed line such as RG-213 or LMR400. RG-8x is perfectly adequate for short runs of 50 feet or less. -
Page 5: S9 As A Dipole Or 3 Element Vertical Beam Yagi
When a remote tuner is used at the S9 feed point, a 4:1 unun is not required. A 1:1 current choke balun may be required between your transmitter and the antenna (outside of the radial field) if you experience RF current in your shack. -
Page 6: Balun/Unun
Ground or Elevated Mount A pipe or mast is required for the S9 to be mounted on the ground or in the air. For standard ground-mount installations of the 40/15 Meter S9v33+ Antenna, use a 40-inch long (minimum recommended length), 1-1/4”... - Page 7 OD for it. To create a mount for the S9 on the mast, simply install a Pipe Mount Clamp 15” from the top of the mast. The S9 will slip over the mast and rest on the flat portion of the clamp assembly. In this elevated configuration, the S9 functions as a ground plane (GP) antenna and four radials are required for each intended band of operation, as discussed below.
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Page 8: Radials
Pipe Mount Clamp below the base of the antenna and try to position the radials equidistantly around the S9 base. The radials may lie flat or droop up to a 45-degree angle down from the base of the antenna. Attach insulators to the ends of the radials. -
Page 9: Installation - Quick Reference
Installation – Quick Reference Page 9... -
Page 10: How To Install The Tube Rings (For Portable Use)
How to install the tube rings (for portable use) The polymer tube rings are not clamps – they are “stops” and are used to keep the associated tube section from collapsing down into the tube immediately below it. Slide a tube ring over the tube and use your thumb and index finger to loosely latch the ring about 15 to 20 inches above the adjoining, lower tube. - Page 11 Next, slide the ring down the tube to see if it fits tightly against the top edge of the adjoining lower tube. If the ring is not tight, slide the ring back up the tube, use your thumb and index finger to advance the latch ONE MORE CLICK.
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Page 12: How To Unlatch A Tube Ring
Installation – Detailed Instructions 1. Select Installation Site. Try to use a clear and open area to deploy the S9. Even though the S9 is completely insulated, you absolutely MUST locate the antenna site at least 46’... - Page 13 3. Assemble the S9. a. Lay the S9 on the ground near the ground mount and unwind the vertical element wire from the base tube. Now, “walk the wire” away from the antenna base tube in a straight line.
- Page 14 Put the top rubber plug in your pocket so that it will not be lost in the grass. c. Now we are ready to extend the antenna sections. The S9 should still be laying flat on the ground. To extend the antenna, grab a section of the wire near the bottom end cap and push the wire into the base tube.
- Page 15 f. To install a ring, slide it over the top of each upper section and use your thumb and index finger to squeeze the ring tabs until the teeth click together, as shown below. g. Next, slide the ring down the tube toward the lower, larger tube section. All tube diameters are tapered, so the goal is to have the ring fit tightly against the top of the adjoining lower tube section.
- Page 16 Once you get a small U-shaped portion of the wire out of the exit hole, you can gently twist it, if needed, to help retrieve the wire. Now STOP and carefully remove the wire from the hook. Next, hold the top part of the wire firmly in one hand while you use your other hand to pull the lower, loose end of the wire out through the hole.
- Page 17 1. Remove cap center piece 4. Raise the S9. This is the fun part! To raise the S9, simply grab the base tube with one hand and the next section with your other hand and raise the antenna. Next,...
- Page 18 If you are using the S9 as a multi-band vertical, position a 4:1 unun (or remote antenna tuner) at the base of the S9 and connect the S9 vertical element wire ring terminal connector to the active element unun connector marked (or to the remote antenna tuner connector marked Antenna).
- Page 19 16 radials, each at least 26 feet, 9 inches long spaced as evenly as possible around the S9 base – like wheel spokes. For best performance, use 32 (or more) radials. It is suggested that you use 14 – 16 AWG insulated stranded copper wire (available at Home Depot and sold in 500-ft rolls).
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Page 20: Lowering The S9
If winds above 40 MPH and/or ice are expected, you should lower the antenna to protect it from becoming damaged. To lower the S9, simply disconnect the vertical element wire from the coax center connection (or unun/remote antenna tuner) and carefully lift the antenna straight up off of the mount. -
Page 21: Maintenance
(color becomes lighter), use a soft cloth and Armor All to restore the finish. Automotive spray wax is also an excellent product to seal and protect the finish. The S9 may also be repainted, if desired, using a quality exterior spray paint such as Krylon or Rustoleum . -
Page 22: Appendix 1 - Permanent Installations Secured By Screws
APPENDIX 1 – Permanent installations secured by screws You will need seventeen “course thread” stainless steel screws that are either 1/4 or 1/2 inch long that are approximately 1/8 inch wide. Before you begin, gently pull the top thinnest section straight out of the base tube (pull the section, not the cap) until it catches and pulls the next, lower section out. - Page 23 Continue with securing each section with their appropriate screws until all sections have been secured. Again, the bottom section has fours screws, the middle sections have two screws and the top three sections have one screw. The antenna should now be fully extended and laying on the ground and all sections (except the top section) should be secured with screws.
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Page 24: Support
Support If you have any questions or problems installing your S9, please contact us. You can reach us via: Email – support@AlphaAntenna.com Phone – 1-888-482-3249 Web – www.AlphaAntenna.com Our mailing address is: Alpha Antenna 102 East Main Street Building E...
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