Callsign
Results 1 to 6 of 6

Thread: Rotor and coax strapped together?

ad: l-AmericanRadio
ad: l-assoc
ad: l-ezhang
ad: l-gcopper
ad: l-hrd-1
ad: l-BCInc
ad: l-innov
ad: l-Waters
  1. #1
    Join Date
    Jan 2003
    Location
    Winnipeg Canada
    Posts
    147

    Default Rotor and coax strapped together?

    For apperance sake, I want to run the RG213, the rotor cable, and the SteppIR control cables strapped together to the tower leg. It is a 48 foot tower and I will (someday) have a linear.
    Do you see any problems doing this?
    73 de me BLB

  2. #2
    Join Date
    May 2003
    Location
    Everett, WA USA
    Posts
    5,035

    Default

    Quote Originally Posted by VE4BLB View Post
    For apperance sake, I want to run the RG213, the rotor cable, and the SteppIR control cables strapped together to the tower leg. It is a 48 foot tower and I will (someday) have a linear.
    Do you see any problems doing this?
    I will be OK if you don't have significant RF current flowing on the outside of the feedline, or leakage from the feedline. The shield on RG-213 has 97% coverage.
    vy 73,
    Bryan WA7PRC

  3. #3

    Default

    That's right, if you do not have any common mode radiation from the coax shield you will not have any problems. This depends on the antenna you plan on running. Most are not a going to cause anything to happen. Just be aware that if you do have common mode then you may need to fix that. There have been no reports from SteppIR antennas having issues with RF getting into the controls and making things difficult. So you should be okay.
    Hope this helps
    73
    Gary

  4. #4
    Join Date
    Jan 2008
    Location
    In Missouri Ozark Mountains
    Posts
    5,543

    Default

    I don't have a SteppIR but do have a 10-40m beam plus 6/2m yagis amd a 2m vertical with rotor cable and coax from 2 wire antennas (some RF) tied together not to tower but to stand-offs running 1k with no problems.
    73 de Fred N0AZZ

    _____________________________________

    The License is Only Your Starting Point in Radio!
    MVDX/CC of SW MO., DX Hogs, OARS, NARC, NCDXF
    ARRL member, ARRL and W5YI VE
    DX the thrill of the chase

    ""D-STAR making use of the 2/ 440m repeaters for real world Digital Voice usage around town and around the world""

    " Not one of us can do what all of us can do " ** Max Lucado

  5. #5
    Join Date
    Oct 2003
    Location
    Middle Georgia USA
    Posts
    7,234

    Default

    I bundle all my cables and control lines going up towers, or out to antennas, once outside the house area.

  6. #6

    Default

    Quote Originally Posted by W8JI View Post
    I bundle all my cables and control lines going up towers, or out to antennas, once outside the house area.
    So do I. Sometimes RF (at a lot of power) will couple a bit into the rotator cable and make the meter wiggle slightly on the rotator control box while transmitting, but that can be prevented by grounding the outer conductor of the coax in a few places (like to the tower leg at top and bottom, etc).
    A government which robs Peter to pay Paul can always depend on the support of Paul.

    -- George Bernard Shaw

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •