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3/16" x 111" ROD

3/16" x 114" ROD

1-1/4" X 60"

DRIVEN ELEMENT 

3/16" x 111" ROD

3/16" x 114" ROD

1-1/4" X 60"

REFLECTOR ELEMENT 

3/16" x 111" ROD

3/16" x 114" ROD

OUTSIDE EDGES

1-1/4" X 60"

DIRECTOR ELEMENT 

YOUR FINAL MATCH IS A BALANCE BETWEEN THE 'S'  HAIRPIN DIMENSION
AND THE TIP LENGTH OF THE DRIVEN ELEMENT.  IF YOU ADJUST EITHER, 
DO IT IN 1" INCREMENTS AND ONLY ADJUST ONE AT A TIME BEFORE YOU
CHECK THE RESULT.  30 FEET ABOVE GROUND IS THE MINIMUM REQUIRED 
MEASURMENT HEIGHT.READING MAY CHANGE RAPIDLY AND RADICALLY
BELOW 30 FEET.

BAND SEG. UNDER 2:1    7.0-7.130          7.1-7.240          7.150-7.30

REFLECTOR                       58.50"                50.50"                47.50"

DRIVEN                              44.50"              37.50"                 34.50" 

DIRECTOR                         39.50"              31.50"                 28.50"

'S' (HAIRPIN SHORT)         36"                   36"                      36"
              

108.5 "

108.5 "

108.5 "

ON ALL EIGHT

HALF ELEMENT

SECTIONS

1" X 1" X 6"
BALUN MTG. 
ANGLE BKT.

3" x .125" x 180", PLAIN

1-1/2" X 60" SOE

EYEBOLT

355.0"

1-1/2" X 60" SOE

163"

'S'

HAIRPIN TUBES
AND SHORTING BAR

ELEMENT SPACINGS

1.5"

3" x .125" x 180" SOE

1/4-20 x 3-1/2"
BOLT AND LOCKNUT

189"

BOOM TO MAST PLATE
NEAR BALANCE POINT

1-1/2" X 60" SOE

EYEBOLT

CENTER

TO 

CENTER

0

5/8"

COMPRESSION

CLAMP

1/2" X CHART 

EXPOSED

1/2" X CHART 

EXPOSED

1" X 60"

1" X 24"

5/8"

COMPRESSION

CLAMP

3/4" X 48"

1" X 60"

1" X 24"

3/4" X 48"

1/2" X CHART 

EXPOSED

5/8"

COMPRESSION

CLAMP

 40M3LL 

1/2" TIP DIMENSIONS    

1" X 60"

1" X 24"

3/4" X 48"

40M3L DIMENSION SHEET 

Summary of Contents for 40M3L

Page 1: ...nding performance that will deliver years of enjoyment on the 40 meter band Mechanically the elements are mounted between 1 2 thick machined aluminum clamp plates The Driven element is split and insul...

Page 2: ...G ROD into a CLAMP PLATE ASSEMBLY Center the assembly and align the bolt holes to vertical Tighten all four outer element clamp plate bolts EVENLY Make sure plates remain parallel top to bottom 2 VERT...

Page 3: ...sections into the swaged 1 sections and secure with 8 32 x 1 1 4 screws and locknuts NOW IS THE TIME TO DETERMINE WHAT PART OF THE BAND YOU WANT TO USE MOST AND EMPHASISE THE 3 BAND SEGMENTS INSURE V...

Page 4: ...MENSION SHEET NOTE the dimension is measured from the OUTSIDE edge of the LL arm to the OUTSIDE edge of the shorting bar USING A BLACK PERMANENT MARKING PEN OR EQUIVALENT MARK THE SPOT ON THE ROD WHER...

Page 5: ...n tubes INSERT the tubes into the grooved channels of 3 8 clamp block assemblies on Driven element Push the tubes through until at least 1 4 extends beyond clamp and then tighten the clamp bolt slight...

Page 6: ...roops again following final adjustments check your knots They may be may be slipping D After final installation of the antenna the turnbuckle plate installed loosely with a 2 U bolt is raised up the m...

Page 7: ...2 1 7 0 7 130 7 1 7 240 7 150 7 30 REFLECTOR 58 50 50 50 47 50 DRIVEN 44 50 37 50 34 50 DIRECTOR 39 50 31 50 28 50 S HAIRPIN SHORT 36 36 36 108 5 108 5 108 5 ON ALL EIGHT HALF ELEMENT SECTIONS 1 X 1...

Page 8: ...POST 1 4 20 X 2 BOLT LOCKNUT DRIVEN ELEMENT HARDWARE 8 32 X 1 SCREW LOCKNUT 5 PER SIDE 1 1 4 X 24 FIBERGLASS ROD 1 3 8 X 23 13 16 SLEEVE 1 1 2 X 60 SOE 1 4 20 X 2 3 4 BOLT LOCKWASHER STRAIN RELIEF HPT...

Page 9: ...8 CLAMP BLOCKS HAIRPIN TUBE 3 8 ALUM TUBE 2 1 1 BALUN AREA TOP VIEW HAIRPIN SHORTING BAR DETAIL END VIEW 3 8 X 1 SPACER 1 4 20 X 2 BOLT LOCKNUT BAND CLAMP 52 1 20 X 1 4 SET SCREW LINEAR LOADING HARDWA...

Page 10: ...GENERIC COMPRESSION CLAMP DETAIL NOTE Generic layout to show how compression clamps work Your antenna may have one or the other or may even have both compression clamp sizes...

Page 11: ...Element section 3 4 x 049 x 48 SOE 6 Element tip section 1 2 x 049 x 61 50 2 Element tip section 1 2 x 049 x 47 50 2 Element tip section 1 2 x 049 x 42 50 2 Hair pin tube 3 8 x 55 2 ALUMINUM ROD DESC...

Page 12: ...stainless 14 Bolt 1 4 20 x 2 0 stainless 5 Set screws 1 4 20 x 1 4 ss 2 Nut 1 4 20 stainless 6 Nut 1 4 20 locking stainless 27 Allen wrench 1 8 1 BAG 9 5 8 Compression clamp 6 Screw 8 32 x 1 3 4 panhe...

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