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Avanti Sigma II


I'd just make one from a new SPT-500 and a ring of aluminium in place of the hygain
u-turn match and put a piece of fiberglass rod into the radiator element just above the radials.

Don't forget to wrap an 8-10 turn choke to ground around the fiberglass, from the tap point at the ring feed, to ground.

Tell me it's not 267" where the Sigma-II tunes best for .385!
 

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  • dxBot:
    Greg T has left the room.
  • @ BJ radionut:
    EVAN/Crawdad :love: ...runna pile-up on 6m SSB(y) W4AXW in the air
    +1
  • @ Crawdad:
    One of the few times my tiny station gets heard on 6m!:D
  • @ Galanary:
    anyone out here familiar with the Icom IC-7300 mods