SteppIR 2 Element Yagi - ATTACHING ELEMENTS TO THE EHUS; Section 7.1: Prepare the CPVC Inner Guide Tube & Diverter Cone

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Section 7.1: Prepare the CPVC Inner Guide Tube & Diverter Cone
SKIP TO THE NEXT PAGE IF YOU DO NOT HAVE THE 40/30 LOOP
The 40/30 loop on the 2 Element Yagi uses a plastic tube and a diverter cone located inside the tele-
scoping pole, to guide the copper strip out of the EHU. Note that the straight elements do not use this
inner tube, only the 40/30 loops. The plastic tube is off-white and is made of CPVC. There are 3 pieces
that make up the guide tube assembly: The diverter cone (PN 10-1509-02), the 39-7/8” CPVC tube with
no coupler (PN 70-2025-23) and the 49” CPVC tube with coupler (PN 70-2025-13). This guide tube is
only required for 40/30 loop elements. The guide tube is not needed on the return side of the loop. Fig-
ure 7.11 shows the three pieces in the assembly.
The smaller diameter end of the diverter cone is glued to one end of the 39-7/8” CPVC tube as shown in
Figure 7.12 utilizing the glue kit (PN 72-0009-03). Use the supplied glue and applicator as shown in Fig-
ure 7.13. Apply the glue evenly around the outside diameter of the tube as shown in Figure 7.13. Be
sure you get even coverage all the way around the tube. Cover about 3/4” of an inch deep as shown in
Figure 7.13. Firmly push and twist the 39-7/8” CPVC tube into the diverter cone end as shown in Figure
7.14. Let the glue dry at least 20 minutes before moving it.
Apply glue evenly around the outside diameter of the 39-7/8” CPVC tube as shown in Figure 7.15. Apply
approximately 3/4” deep as per prior step. Locate the 49” CPVC tube with coupler, as shown in Figure
7.16. Push the 39-7/8” tube firmly into the coupler as shown in Figure 7.17.
Repeat above instructions for remaining guide tube assemblies (two per 40m driven EHU).
WARNING: Do not apply glue to the inner “female” portion of either the diverter cone or coupler. The
glue applied to the outside of the tube is sufficient to bond the two pieces, and will prevent potential for
damaging obstructions being formed by dried glue.
Diverter Cone
PN 10-1509-02
39-7/8” CPVC
PN 70-2025-23
49” CPVC
PN 70-2025-13
Apply glue ONLY on the
outside diameter of the
ends of the 39-7/8” pipe
NO
GLUE
NO
GLUE
NEVER use glue on the inside “female”
portion of the diverter cone or coupler
Figure 7.11
Figure 7.12 Figure 7.14
Figure 7.15
Figure 7.16
Figure 7.17
ATTACHING ELEMENTS TO THE EHUS
3/4”
Figure 7.13