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Two Position Remote Ladder Line Switch Plans Wanted

Discussion in 'Antennas, Feedlines, Towers & Rotors' started by N7BB, Jul 22, 2021.

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  1. WA7ARK

    WA7ARK Ham Member QRZ Page

    Isn't the goal to be able to switch one feedline to two antennas, in which case there are 6 wires to be switched?
     
  2. N7BB

    N7BB XML Subscriber QRZ Page

    I think I may have answered my own question. Correct me if I'm wrong: 3 binding posts on either side of the switch. Antenna 1 input on the two posts on one end, Antenna 2 input on the other two at the opposite end, and the common ladder line to the shack or tuner on the two posts in the middle? No?
     
  3. WA7ARK

    WA7ARK Ham Member QRZ Page

    Yep!
     
    K0UO likes this.
  4. N7BB

    N7BB XML Subscriber QRZ Page

    Hey thanks for that! I thought if I stared at it long enough I'd figure it out...
     
  5. WA7ARK

    WA7ARK Ham Member QRZ Page

    If I was going to build a remote relay box to switch window line between two antennas, I would have to use two of those Bosch relays, because each one has only a one-pole set of normally-open, normally-closed contacts.
     
  6. KM3F

    KM3F Ham Member QRZ Page

    If you do a search for [open frame relays] on the internet, you should be able to select one that will minimize impedance bump when configured the best.
    I saw many possibilities.
    Some even go for as low as $15 on ebay.
    Good luck.
     
    K0UO likes this.
  7. KL7AJ

    KL7AJ Ham Member QRZ Page

    This can be done with open frame relays...I have a few if you need some.
     
  8. KL7AJ

    KL7AJ Ham Member QRZ Page

    Pretty soon, your shack will look like this:
     
    KL7SG and W2VW like this.
  9. KL7AJ

    KL7AJ Ham Member QRZ Page

    Check at about 57 minutes in.
     
  10. K0UO

    K0UO Platinum Subscriber Platinum Subscriber QRZ Page

    20200307_153044.jpg
    2 books worth reading if you like Big Wire Antennas

    Back in the eighties when they were dismantling Don's station/ I acquired quite a few insulators and hardware that is now being used on my Rhombics.

    73 from,
    The K0UO " Rhombic Antenna Farm" 2 miles of wire in the Air & On the daily.
     

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