M2 Antenna Systems 8-30LP9, Инструкция по сборке

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ELEMENT MOUNTS, #5 THROUGH 8
3. ELEMENT #5 MOUNTING PLATES. Element #5 uses two 2-1/2 x 4” plates and TWO SADDLES
to attach it to the boom. A 7/8” diameter fiberglass rod gets two 7/8” I.D. poly rings pushed on and
centered just over 4” apart. Align the holes vertical and tighten the hardware.
4. Elements #6 through #8 use a single 2-1/2 x 4 x 3/8” plate and a matching rectangular 1-1/2 x 4 x
1/4” clamp plate. The 7/8 x 29-3/4 inch long fiberglass rods each need 7/8“ poly rings installed and
centered just over 4“ apart. Clamp these assemblies between the plates, aligning the holes vertical
and tighten the hardware. (Elements #6, 7 and 8 each use a single 3” bottom cradle).
Note: Element #8 is the feed point and a BALUN BRACKET is added to the clamp plate assembly
5. Element #9, the front DIRECTOR element mounts differently, using two 3” machined cradles back
to back. It is grounded to the boom. A 7/8” x 30 “ sleeve couples the two 3/4” element halves together
with the same bolts that hold the bottom saddles. Assemble loosely at this time.
LOG PERIODIC ELEMENT ASSEMBLY
1. REFER TO “ELEMENT ASSEMBLY” SHEET
2. Start with the smallest elements. Elements #8, #7, #6 and #5 are similar. There are two halves to
each element. Do the following for both halves. Locate and install a 1” hole, ELEMENT CLAMP
BLOCK 1/4” from the butt end of a 1” x 48” section. Use an 8-32 x 1-1/2” screw and locknut. Orient
the clamp block so its upper hole is aligned with the hole in the butt of the tube. Locate a small
clamp plate and attach it loosely to the inside of the element clamp block using a 1/4-20 x 1” flat
head bolt and locknut. Now add the 3/4” section on element #8 and secure using 8-32 hardware
shown on the drawing. Finally, slide each element half over the center 7/8” fiberglass rod insulator
assembly and secure with 1/4-20 x 1-1/2” bolts and locknuts. When element #8 is complete, set it
aside and continue finalizing elements 7, 6, & 5.
8-30LP9 ASSEMBLY MANUAL