IW5EDI Simone - Ham-Radio
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6m J-Pole by WB5CXC
Posted: 23 May 2020 11:17 AM PDT
http://www.iw5edi.com/ham-radio/4493...pole-by-wb5cxc
Use a 54” piece of 450 ohm Ladder line.*
Cut out 3 inches of the center part of the ladder line.*
Solder a PL-259 on the bottom of the Ladder Line (both side of the ladder
line will solder on the ground side of the PL-259 this is used for the
shorted part of the J-Pole).*
Cut a 1” PVC pipe** 1 1/2” long.*
Cut a 36” piece of RG-174 coax.*
Wrap the coax around the PVC pipe.*
One end will attach to the PL-259, the center of the coax will connect to
the center of the PL-259 and the shield of the coax will connect to the
outer portion of the PL-259.*
Strip the insulation off lh ladder line 2 1/2” above the PL-259.*
Attach the center of the coax to the side that will have the long wire
attached, the shield side of the coax will connect to the short side of the
J- Pole.
Connect the Long wire to the ladder line.**
Check the SWR, if it is not less than 2:1 in the operating portion you want
to operate, you can tune the J-Pole by moving the tape of RG-174 up or
down.* Do not move it more than ~ 1/4” at a time
Article originally available at
http://www.wb5cxc.com/6m_jpole.html
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