Advertisement
Quick Links
Advertisement
Related Manuals for S9 Antennas S9v 31’ Mk II
Summary of Contents for S9 Antennas S9v 31’ Mk II
- Page 1 Model S9v 31’ Mk II Multiband Vertical Antenna Installation Guide...
- Page 2 S9v 31’ M K II Installation Guide _____________________________________________________________________________ WARNING: INSTALLATION OF THIS PRODUCT NEAR POWERLINES IS DANGEROUS. FOR YOUR SAFETY, FOLLOW THE INSTALLATION DIRECTIONS. INTRODUCTION Thank you for purchasing the S9v 31’ Mk II multiband vertical antenna, hereinafter referred to as the S9v. We believe the S9v to be the lightest, most efficient and safest full-size vertical antenna available and we sincerely hope that you enjoy your new S9v.
- Page 3 S9v 31’ M K II Installation Guide _____________________________________________________________________________ Configurations When used with a proper RF ground, the S9v is a serious 40 meter DX antenna. The natural resonant frequency of the S9v is just above the top of the 40 meter band - around 7.4 MHz - and the 2:1 SWR curve is broad.
- Page 4 S9v 31’ M K II Installation Guide _____________________________________________________________________________ Balun/Unun For 40 meter monoband use, a 1:1 current choke balun is recommended. It should be located outside of the radial field (between your transmitter and the antenna) to isolate RF currents from flowing back into your shack over the coax shield.
- Page 5 S9v 31’ M K II Installation Guide _____________________________________________________________________________ In a multi-band configuration, expect excellent results on 40 through 17 meters and very good results on 15 through 10 meters. If your tuner covers 6 meters, your S9v will allow you to make local contacts and DX contacts during Sporadic E openings.
- Page 6 S9v 31’ M K II Installation Guide _____________________________________________________________________________ For portable ground-mount operations and DXpeditions, use our optional Portable Mount, shown below. The Portable Mount is a heavy-duty mount with an integral stake that makes ground mounting the S9v in temporary (or permanent) locations fast and easy.
- Page 7 S9v 31’ M K II Installation Guide _____________________________________________________________________________ There is no precise formula to calculate the length of ground-mounted radials because everyone has different soil and soil tends to change the electrical length of the radials. However, a general rule of thumb for radials is: “as many as possible”...
- Page 8 S9v 31’ M K II Installation Guide _____________________________________________________________________________ S9v 31’ MK II – HARDWARE Hook Tool Used to Retrieve Antenna Wire One Spare Vinyl Cap for Antenna Tip Two Ring Terminal Eight Polymer Tube Rings Connectors and Hardware for Coax Center and Shield ________________________________________________________________________...
-
Page 9: Installation - Quick Reference
S9v 31’ M K II Installation Guide _____________________________________________________________________________ INSTALLATION – QUICK REFERENCE ________________________________________________________________________... - Page 10 S9v 31’ M K II Installation Guide _____________________________________________________________________________ HOW TO INSTALL THE TUBE RINGS 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.
- Page 11 S9v 31’ M K II Installation Guide _____________________________________________________________________________ HOW TO INSTALL THE TUBE RINGS (Con’t) 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.
-
Page 12: How To Unlatch A Tube Ring
S9v 31’ M K II Installation Guide _____________________________________________________________________________ HOW TO UNLATCH A TUBE RING Unlatching a tube ring is easy! Use both hands. Push forward on one tab while pulling back on the other tab to free the latching mechanism, as shown below. -
Page 13: Installation - Detailed Instructions
S9v 31’ M K II Installation Guide _____________________________________________________________________________ INSTALLATION – DETAILED INSTRUCTIONS 1. Select the Site. Try to use a clear and open area to deploy the S9v. Even though the S9v is completely insulated, you absolutely MUST locate the antenna site at least 46’... - Page 14 S9v 31’ M K II Installation Guide _____________________________________________________________________________ 15 inches maximum from ground to top of pipe NOTE: Use a level while you are installing the pipe or Portable Mount to ensure that it is as straight as possible in the vertical plane. Drive the 1-1/4”...
- Page 15 S9v 31’ M K II Installation Guide _____________________________________________________________________________ 4. Assemble the S9v. a. Lay the S9v 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 16 S9v 31’ M K II Installation Guide _____________________________________________________________________________ c. Now we are ready to extend the antenna sections. The S9v 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. This action should cause the top, thinnest section of the antenna (it has a cap on its tip) to pop out of the top of the base tube.
- Page 17 S9v 31’ M K II Installation Guide _____________________________________________________________________________ e. As shown below, each upper tube section (except the top, tip section) requires a polymer tube ring to prevent the tube from collapsing down into the larger diameter tube immediately below it. f.
- Page 18 S9v 31’ M K II Installation Guide _____________________________________________________________________________ h. The top tip section does not require a tube ring. To secure the top section, hold the section below it with one hand and firmly twist and pull the tip section with your other hand until it is firmly friction-locked in place. NOTE: The antenna should now be fully extended and laying on the ground and all sections (except the top section) should have the tube rings installed.
- Page 19 S9v 31’ M K II Installation Guide _____________________________________________________________________________ 1. Hold top part of 2. Use your other wire firmly. Do hand to pull the not pull on this loose end of the part of the wire. wire out of the base tube Bottom of Antenna Top of Antenna...
- Page 20 S9v 31’ M K II Installation Guide _____________________________________________________________________________ k. Before we raise the antenna, unscrew the bottom end cap. This cap consists of a center piece and plastic ring. Remove the center piece and put it in your pocket. Now screw the ring back onto the bottom of the base tube.
- Page 21 S9v 31’ M K II Installation Guide _____________________________________________________________________________ 6. Connect Coax Feed Line to Antenna. If you are using the S9v as a 40 meter monoband vertical, proceed with step “a”, below. If you are using the S9v as a multi-band antenna (40 – 6 meters), skip to step “b”...
- Page 22 S9v 31’ M K II Installation Guide _____________________________________________________________________________ Refer to the picture below. Wrap some electrical tape around the coax center and shield. Then, using the supplied stainless steel hardware, connect the coax center connector to the S9v vertical element wire. (The bolt head should face the base tube, as shown below.) Secure the coax center lead to the bottom of the base tube with electrical tape.
- Page 23 S9v 31’ M K II Installation Guide _____________________________________________________________________________ b. If you are using the S9v as a multi-band vertical, position the 4:1 unun (or remote antenna tuner) at the base of the S9v and connect the S9v vertical element wire ring terminal connector to the unun stud marked Vertical (or to the remote antenna tuner connector marked Antenna).
- Page 24 S9v 31’ M K II Installation Guide _____________________________________________________________________________ 7. Install Ground Radials. For ground-mount installations, we suggest a minimum of 16 radials, each at least 26 feet, 9 inches long spaced as evenly as possible around the S9v base – like wheel spokes. For best performance, use 32 (or more) radials.
- Page 25 S9v 31’ M K II Installation Guide _____________________________________________________________________________ LOWERING THE S9v The antenna should perform in winds up to around 40 MPH. Ice is definitely a concern for any antenna. If winds above 40 MPH and/or ice are expected, you should lower the antenna to protect it from becoming damaged.
-
Page 26: Maintenance
S9v 31’ M K II Installation Guide _____________________________________________________________________________ 6. Now, collapse the antenna sections. Hold the base tube firmly in one hand and grab and twist the section above the base tube while pushing it toward the base tube until the tube collapses into the base tube. 7. - Page 27 S9v 31’ M K II Installation Guide _____________________________________________________________________________ SUPPORT If you have any questions or problems installing your S9v, please contact us. You can reach us via: Email - support@ldgelectronics.com Phone - 410-586-2177. Web – www.ldgelectronics.com Our mailing address is: LDG Electronics 1445 Parran Road St.