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Thailand Cave Rescue Communications

Discussion in 'General Ham Radio Discussion' started by Mudfoot, Jul 13, 2018.

  1. Mudfoot

    Mudfoot Sr. Member

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  2. binrat

    binrat WDX Club Coordinator
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    There is a ham here in Alberta that converts old CB's for the same task. Used within the BC / AB cave rescue group. He got the info from the UK folks.
     
  3. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    Ground Wave? Sorry I could not resist.
     
  4. Handy Andy

    Handy Andy Do Your Research First, Then Decide...

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    Wonder if it can be used for gather worms for fishing?
     
    Shadetree Mechanic likes this.
  5. Shadetree Mechanic

    Shadetree Mechanic 808 On The North Side of Dover

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    Would probably need an amp. About 400w should do it. Lol I wonder what kind of swr the dirt has. Lol
     
  6. Road Squawker

    Road Squawker Sr. Member

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    Leave it up to the ARRL to have an article about a device that is no longer used because it is obsolete.

    Update: May 2018: It is now 17 years since the original HeyPhone was produced; designed and constructed for the UK Cave Rescue Groups by John Hey, who died in 2016. The HeyPhone was a pioneering development in Cave Radio, but it can no longer be recommended..."

    "In a 2018 update, the British Cave Research Association (BCRA) Cave Radio & Electronics Group (CREG) HeyPhone Cave Rescue Communication page called the HeyPhone “a pioneering development in cave radio” that “can no longer be recommended..."

    I guess they worked OK, but, ................what would have been said if they failed and those scouts died?
     

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