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Spiderbeam 160m Vertical Model 160-18-4WTH

 

28  

        

                                    160-18-4WTH Manual, Ver. 1.7                                         17-JULY-2021 

 

In  order  to  reach  the  top-hat  wires,  you  are  going  to  have  to  drop  the  pole  2  or  3 
sections.  This is not difficult to do.  This will place the ends of the top-hat wires about 
1.5m off the ground when hanging straight down.  Now you can easily shorten them by 
50cm, 

BY FOLDING THEM BACK, not by cutting them.

 

 

After shortening all four top-hat wires by exactly the same amount, raise the pole again 
and then re-connect the top-hats to their ground stakes 

 25m out. 

 

Measure again to determine the frequency of minimum SWR . 

 

IMORTANT NOTE:  Like always, when shortening wires, do not cut the wire.  Simply fold 
back more wire along itself. 

By  now  you  should  have  a  feeling  for  tuning  the  antenna.    It  is  impossible  to  describe  every 
scenario you might encounter in the field.  If you have run out of ideas, please record everything 
which you have tried so far and contact Spiderbeam Tech Support (as displayed below). 

 

5.0 APPENDIX  

5.1 Materials and Tools List 

5.1.1  Material Included in the Kit

 

Nr. 

Qty 

DESCRIPTION

 

 18m Heavy Duty Telescoping Fiberglass Pole 

 

 Clamp Set for 18m HD Telescoping Fiberglass Pole 

 

 50m Spool of 2mm Kevlar Rope 

 

Radial Connection Box

 

62m 

DXW-UL Antenna Wire

 

20m 

CQ-532  AWG 18, Stranded Copper-weld Wire, Insulated 

 

100m Spool of PVDF Monofil Line

 

14 

Special Spiderbeam Insulators  for the top-hat wires

 

6m 

6mm Polyester Rope  (must be cut into 6 pieces, each 80cm long)

 

10 

25 

UV-Resistant Wire Ties, 3mm

 

11 

UV-Resistant Wire Ties, 8mm

 

12 

7mm Nut Driver for the Clamp Set

 

13 

5m 

Kevlar Rope (1mm diameter)

 

14 

Instruction Manual

 

15 

40cm 

Heat-Shrink Tubing, 9/3mm 

16 

Tubular Cable Lugs (6mm) 

 

   Note: Pos. 1, 2, & 3 are only in the kit including the 18m fiberglass pole.   

Summary of Contents for 160-18-4WTH

Page 1: ...Spiderbeam 160m Vertical Model 160 18 4WTH 1 160 18 4WTH Manual Ver 1 7 17 JULY 2021 Spiderbeam 160m Vertical Model 160 18 4WTH shown here without radials...

Page 2: ...Spiderbeam 160m Vertical Model 160 18 4WTH 2 160 18 4WTH Manual Ver 1 7 17 JULY 2021 VERTICAL CONSTRUCTION GUIDE Ver 1 7...

Page 3: ...tion 8 2 3 Attaching the Pole to the Base Stake 8 2 4 Raising the Pole for the First Time 9 2 4 1 Raising and Clamping the Pole Segments 9 2 4 2 Using the Optional Guy Belt Set 10 2 4 3 Using 6mm Rope...

Page 4: ...2 Special Instructions for Erecting the Pole in Windy Conditions 23 3 3 Fastening the Top Hats to their Ground Stakes 24 3 4 Adjusting Guy ropes and Top Hat Lines 24 3 5 Installing the Radial Network...

Page 5: ...uare not rectangular Minor deviations from this will not cause too much loss in performance If you have more space take advantage of it by placing the ground stakes supporting the top hat wires farthe...

Page 6: ...eries of 7 articles for QEX magazine 1 3 Material Description It is of utmost importance to keep the material used near the top of the pole as lightweight as possible yet strong enough to endure the s...

Page 7: ...installation Prior to installation you can pre cut your wires and ropes but in most cases due to the long lengths used it is easier to cut them in the field than in the house FORMULA FOR SUCCESS MEAS...

Page 8: ...18m pole and using a sledge hammer pre drill a hole in the ground for the installation of the wooden stake by pounding a 30mm to 40mm steel pipe about 75cm into the ground Remove this pipe insert the...

Page 9: ...xt segment segment 11 with it While holding segment 11 with one hand lower segment 12 back into 11 until only about 30 or 40 cm are sticking out Tape with electrical tape You will now slide the entire...

Page 10: ...insert the belt between clamps 9 and 10 TIP Although you can tighten the clamps using a standard screw driver it is much easier and faster to use a 7mm nut driver or a ratchet with a 7mm socket DON T...

Page 11: ...mounted AFTER the pole is fully erected and properly guyed Paragraph 3 5 page 25 Proceed as follows Fasten the pole to the wooden base stake pulling the top strap tight but leaving the bottom strap lo...

Page 12: ...illimeter because they may also be adjusted in the field when tuning This will depend on the ground characteristics of your location The final field adjustment of the top hat wires is critical Even th...

Page 13: ...s antenna As pointed out earlier for more information on the deployment of radials and their impact on performance we recommend reading the excellent article by Rudy Severns N6LF in the December 2010...

Page 14: ...electrical tape or similar You may also use your XYL s nail polish for this If using nail polish apply 2 or 3 coats allowing to dry between coats This completes the preparation of the first 2 or 4 gr...

Page 15: ...ough the hole in the end of an insulator exiting through the slot in the middle of the insulator Pull about 2 4m of wire through the hole and out the slot then fold it back about 2 4m such that the di...

Page 16: ...e free hole of the top hat insulator pulling it out through the middle slot in the insulator Tie a large knot in the PVDF Monofil line about 10cm from this end Tie any kind of knot you like just make...

Page 17: ...e preparation of all four top hats TIP Temporarily tie the far end of the Monofil line to a small weight We use heavy lead sinkers 140 gr 4 or 5 oz weights sourced from a fisherman s supply shop for t...

Page 18: ...tape a large 8mm UV Resistant cable tie a soldering iron 60w or more and liquid electrical tape or similar to insulate the connection 3 1 1 Mounting the 4 Top Hat Wires and Vertical Radiator Wire to t...

Page 19: ...f the excess leaving about 1cm of exposed soldered wire Finally insulate the remaining 1cm of exposed soldered wire with liquid electrical tape or with whatever your favorite similar insulating substa...

Page 20: ...square knot such that their knots are 90 apart Later you will tie the four 2mm Kevlar guy ropes to the rope stubs using a sheet bend knot as described in paragraph 2 4 3 on page 10 3 1 4 Raising the p...

Page 21: ...sure the guy belt or guy rope stubs are resting at the bottom of segment 9 directly on top of clamp 9 At this time pause stretch all 4 upper guy ropes fully out and also tie some sort of weight to the...

Page 22: ...rom the stake Remove the tape which was temporarily holding the wire to segment 1 On the final segment segment 1 you will change the winding method winding about 10 to 12 turns per meter with windings...

Page 23: ...you are not sure whether it is too windy or not then assume it is too windy and PLEASE follow these special instructions First of all if there is a storm with very high winds it is probably better to...

Page 24: ...re very thin and very light The top hat lines are very light When pulling them tight and fastening to the ground stakes please take care not to pull the lines tight the first time you tie them Leave t...

Page 25: ...ls every attempt should be made to keep the individual radials symmetrical and equally spaced The reality is in many installations this is not physically possible In that case just try to do the best...

Page 26: ...you only need to remove 1 5 to 1 8cm per kHz EXAMPLE Say you want to raise SWRmin by 50 kHz Normally you would calc 2cm per kHz or 100cm 38 to be cut 50x2 100 for 50 kHz To be on the safe side at fir...

Page 27: ...n Now divide the number of cm cut off by the number of KHz of increase in SWRmin The result will tell you how many cm per KHz must be removed at your specific QTH to adjust SWRmin upwards Adjust the l...

Page 28: ...describe every scenario you might encounter in the field If you have run out of ideas please record everything which you have tried so far and contact Spiderbeam Tech Support as displayed below 5 0 AP...

Page 29: ...Guy Belt Set for 18m HD Telescoping Pole 2 8 Galvanized steel ground peg 330mm long 3 8 Galvanized steel ground peg 750mm long 5 1 4 Recommended Tools Supplied by User Nr Qty DESCRIPTION 1 1 Solderin...

Page 30: ...ound out the melted bulb of Polyester by slightly stretching it with your fingers o Tip if not wearing gloves it helps to lick your fingers before doing this helps prevent burning Trim off any long th...

Page 31: ...information http www animatedknots com overhand 5 3 2 The Sheet Bend The Sheet Bend or Becket Bend joins two ropes that are of unequal size but also works well if the ropes are the same size Normally...

Page 32: ...ertical Antenna it is used for fastening the short 6mm rope stubs to the pole see 3 1 4 2 Hint after tying the knot secure the tips of each short end of the rope to itself with a small wire tie placed...

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