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Failsafe during FPV over Cartagena Colombia

Discussion in 'DJI Discussion' started by wordupmag, Aug 15, 2012.

  1. wordupmag

    wordupmag Member

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    Mar 7, 2012
    Posted by wordupmag, Aug 15, 2012 #1
    Been in Colombia for over 1 month and have had over 100 successful flights but no matter how many successful flights you have their is always some where you make mistakes. Just wanted to share so others will be more careful. I had to maintain an altitude of 80 feet to keep LOS between me and the hexa. I was out about 1KM (3000ft) and forgot about the buildings and hills between me and the copter and started losing altitude. When the copter descended to about 60 feet I lost both video and tx signal to the hexa and it entered RTH mode. No big deal because this has happened numerous times before. However the problem this time was that I had a 50-60 foot building in the RTH flight path. Watch what happens next.
     
    Last edited by a moderator: Nov 22, 2014
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  2. VINHEX

    VINHEX Member

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    Jun 22, 2012
    Herts England
    Posted by VINHEX, Aug 15, 2012 #2
    That was close!
     
  3. DesJardins

    DesJardins Member

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    Aug 3, 2012
    Arizona
    Posted by DesJardins, Aug 15, 2012 #3
    Close
     
  4. ksrimoungchanh

    ksrimoungchanh Member

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    Jan 21, 2012
    in the wheat field
    Posted by ksrimoungchanh, Aug 15, 2012 #4
    what TX/RX, antennae are you using? it seems like you were getting great distant. BTW: awesome footage and experience.. wish I could feel that comfortable to go that distant with my hexa F550 and WKM.

    KS
     
  5. wordupmag

    wordupmag Member

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    Mar 7, 2012
    Posted by wordupmag, Aug 15, 2012 #5
    I'm using dx8 with ar8000 for control and for video i'm using 1.3 800MHz with clover antenna
     
  6. ksrimoungchanh

    ksrimoungchanh Member

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    Jan 21, 2012
    in the wheat field
    Posted by ksrimoungchanh, Aug 15, 2012 #6
    thanks..

    was there a reason you picked 1.3 for Video over the others?
     
  7. kloner

    kloner Aerial DP

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    Jan 5, 2012
    San Diego
    Posted by kloner, Aug 15, 2012 #7
    yikes......
     
  8. mmurfitt

    mmurfitt Member

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    SW London, UK
    Posted by mmurfitt, Aug 16, 2012 #8
    Goodness me! That's enough to make me feel slightly weak at the knees!
     
  9. wordupmag

    wordupmag Member

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    Posted by wordupmag, Aug 17, 2012 #9
    Sorry for the late reply.

    I chose 1.3 over the others because of the following:

    900mhz is great but it is banned in most countries in south america..including my second homeland of Colombia.(due to the 900mhz is reserved for cellular service) It also does not perform well in urban areas....but It is the best in NON urban areas as far as distance. I have an addition fpv setup for NON urban areas and I use the 900mhz.

    2.4ghz has to much interference with other daily appliances including my dx8 transmitter.

    5.8ghz is great in the city but has short range and cannot pierce objects very well

    That only leaves me with 1.3ghz which great at long distance and piercing objects.
     
  10. ksrimoungchanh

    ksrimoungchanh Member

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    Jan 21, 2012
    in the wheat field
    Posted by ksrimoungchanh, Aug 17, 2012 #10
    Great... Thanks for the info.

    KS
     
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