Radio direction finder.

Discussion in 'Marine Electrical / Electronics' started by Raider Ronnie, Jul 10, 2019.

  1. Raider Ronnie

    Raider Ronnie Captain

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    I’ve never actually used one, know some who have, a few that still do
    Are these things yesterday’s technology and best used as paper weights of do some still use them.
     
  2. Wharf Rat

    Wharf Rat Captain

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    They're pretty awesome, if you have a working unit there's no reason to not keep it onboard. We actually sold a brand new Simrad Taiyo TD-L1550 last year. The only pain in the ass having to run a pair of armored 50Ohm cables and mounting the antenna up and over any structures, which can cause problems with SatTV shadowing, etc. You have a friend who's looking to donate one to you?
     
  3. Raider Ronnie

    Raider Ronnie Captain

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    New boat has 2 complete units,antennas etc.....
    One of them is Simrad.
     
  4. GLA

    GLA Senior Member

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    we had one back in the late 70's early 80's before we bought a loran C
    if this is the same type unit
    would dial in a known radio station in asbury park, plot a line there, and then dial into a known station
    in atlantic city. our position was where the two lines crossed.

    that was after a 2 day trip to the hudson, to get the right compass course to get to the inlet

    we had that , a paper recorder, and a vhf, and usually a bunch of tuna
     
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  5. Tuna Pursuit

    Tuna Pursuit Captain

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    I think were talking to different things, one detects the direction and distance of a radio signal, the other picks up land based transmitting stations with unique signals. You pick up 3 stations along the cost and use the little compass on top of the hand held unit & draw 3 lines on your chart and you know where you are. I would guess the stations are long gone, could be wrong.
     
  6. Raider Ronnie

    Raider Ronnie Captain

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    These are basically to listen in on conversations and find out where they are.
    A good tool for the CG,especially in rescue situations.
    Fishermen would listen for conversation where the fish are.
     
    Last edited: Jul 10, 2019
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  7. Old Mud

    Old Mud Captain

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    That's why Some fishermen have scramblers. :p
     
  8. Raider Ronnie

    Raider Ronnie Captain

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    And a radio with expanded channels.
    I have both
     
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  9. Kailua Kid

    Kailua Kid Senior Member

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    I have used RDFs on boats without radar, primarily in the fog. If you have RDF signal buoys in the areas where you navigate, can be very useful piece of gear; otherwise, useless of course.
     

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