Things you did not know about the Radian

Discussion in 'Radian' started by Tabb Firchau, Sep 26, 2012.

  1. Ramesh Tahlan

    Ramesh Tahlan Member

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    Andy.
    looks like real trouble.
    good think i recently bought a new Laptop
    and have all the stuff loaded there.
    but have love to have the set up going on my PC and not having to use laptop at home..
    keeping laptop for all outdoor work though
    Thanks
    Ramesh
     
  2. Ramesh Tahlan

    Ramesh Tahlan Member

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    hi
    Today i wanted to do a bit of re-configuration on my radians
    want to use channels 9, 10 and 11 from my JR 11 channel radio
    But when i click on input channel monitor
    only the 8 channels on the left window show they r active
    and chn 9 to 16 on the right window dont show active
    Is it that i am doing something wrong,
    or
    do radians accept only first 8 channels for configuration ????
    help
    Ramesh
     
  3. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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  4. Ramesh Tahlan

    Ramesh Tahlan Member

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    Andy..
    u sure have some memory, where to find what, and what was written where...
    awesome buddy..dont know how u do that... and how u have the patience...
    thanks for reminding me that about Sat Rx,, only high 8 channels r available...
    many thanks

    Ramesh
     
  5. Ramesh Tahlan

    Ramesh Tahlan Member

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    hey Andy,
    fantastic breakthrough
    i have had two Orange Spektrum Rx 9ch lying for past 2 years
    just pulled them out
    they r DSM2 and have Sbus out just like Futaba
    so did the binding on my JR11
    used the Sbus out to Radians
    BANG
    i have all 11 channels visible as green on channel input indicator..
    and all responding
    fantastic.......
    so did some reprogramming
    and it works....
    So this also means that
    i can use a JR system on S Bus for one pilot operation
    and another JR radio on Sat Rx for two pilot operation
    so no need for one JR and one Futaba.

    Ramesh
     
  6. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    My brain is rapidly getting full as a result.... :)
    Andy.
     
  7. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Sounds like you have found a good solution, Ramesh. Well done.

    Andy.
     
  8. Ramesh Tahlan

    Ramesh Tahlan Member

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    Andy.
    I sold of my Futaba 8FGS and now i have the 14SG
    The Radian software just one read the software.
    if i Read, i get the correct channels that i have programmed each radian to
    but in the input channel monitor... all channels r dead
    i am using the Sbus output,,, and not the Sbus2 output
    the channel monitor was reading all my channes perfectly with 8FGS in Sbus output.
    Does the 14SG have some issues with the Radians ???
    The Wooking M however got programmed perfect with 14SG, no issue at all.
    But just one input.
    when i put on the Tx and then the cam mount,,,, both the cam axis are not unlock
    they respons to my tilting the multicopter, and in the diagnostic window
    the only green tab is the servo output, and that moves if i tilt the multicopter ....
    One more issue
    the 14SG came preset to FASSTest 14 ch.
    i am now going to change the Tx to operate on FASST MULTI mode,
    and i remember the 8FG came default to FASST MULTI
    so Rx will need rebinding i guess. or i may have to use my left over Rx R6208
    as i had purchased a spare Rx that time.
    So here goes ..

    Ramesh
     
  9. Ramesh Tahlan

    Ramesh Tahlan Member

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    Andy
    i linked my Rx R6208SB which i had as an extra when i bought the 8FG, with 14SG Tx on FAST MULTI
    and bangggggggggg
    every thing working perfect.
    So Radians dont talk to the Telemetry Rx which r coming with 14SG .. the R 7008SG.
    then i tried to do binding once again with Tx still on FAST MULTI with the Rx which came with the 14SG -R7008SB
    it does not want to Bind
    so i guess the reason that Futaba gave the four options on the Tx of
    FASSTest 14CH
    FASST MULIT
    S-FHSS
    FASST 7CH
    was to make the 14SG backward compatible with its earlier receivers
    So the Radians have an issue with the R7008SG receivers, cause even though they have Sbus
    Radian software does not recognise the outputs.
    This has been such a long journey for me
    but i am enjoying it totally
    and the journey has not ended
    the Spectrum DX18QQ is yet to arrive
    for my two pilot operation.
    cheers so far
    AND I HOPE FREEFLY will come out with a upgrade software to make Radians talk to the new generations on rx with telemetry.
    Ramesh
     
  10. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Let me ask JohnC if he can comment on your posting.
    But just to be clear for other forum members who may have the same problem, the solution you found was to switch the 14SG to FASST MULTI, correct?

    Thanks
    Andy
     
  11. Ramesh Tahlan

    Ramesh Tahlan Member

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    Andy.
    That is right
    i had to change Tx setting of 14SG to FASST MULTI,
    AND
    Use the R6208SB reciever
    even after changing over to FASST MULTI,
    I could not use the Telemetry Rx R7008SB

    Ramesh
     
  12. John Cunningham

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    Hi Ramesh,

    The Radian performs some checks the SBUS message to be confident it is valid before it uses it. I suspect the new SBUS changes something slightly and the Radian rejects it. Maybe the Wookong just uses the data without checking.

    It will certainly be fixed in the next firmware release - but I don't have one of the new radios + receivers yet to find out what is different.

    As you now know, the workaround for now is to use one of the older sbus receivers for the time being
     
  13. Ramesh Tahlan

    Ramesh Tahlan Member

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    JohnC.
    hi
    thanks for that input.
    that will be great,
    but i am surprised that it did not accept SBus for the new telemetry Rx of Futaba... R7008SB.
    i though Sbus was Sbus,
    it even accepted the Sbus from Orange Spectrum 9ch Rx..
    which actually took me by surprise.
    i hope that since u guys would develop they system to accept the Sbus from Telemetry Rx
    i hope u guys will also look at the SBus 2, which uses the Telemetry.
    cause then may be some telemetry sensors can be used on the Aux ports of the Radians
    so that some gadget could but but there and used.
    anyway
    great to know u guys will look into the aspect of the Sbus on Futaba telemetry Rx R7008SB and similar ones
    many thanks
    Ramesh
     
  14. Ramesh Tahlan

    Ramesh Tahlan Member

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    JohnC,
    the other thing about Sbus2 on R6008SB Rx is this
    you cannot use Sbus servos on Sbus2.
    one can use Sbus2 servos, or Sbus2 Gyro, and the telemetry sensors.
    But the Sbus on the R7008SB rx can use Sbus2 servos, but NOT telemetry sensors...
    What surprises me is why has the Sbus changed on the Telemetry Rx,
    Ramesh
     
  15. Ramesh Tahlan

    Ramesh Tahlan Member

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    Andy.
    some time back i was asked to do a video by first keeping Radian Stabelisation ON and then OFF
    here is the link.
    the fist part of video is with Radians stabilization ON
    the second part is with Radians mode OFF,
    i cant believe the diff
    from my understanding it appears i may have put gain tooo high
    Do give some inputs
    but i do plan to do one more test with Gains reduced.
    http://youtu.be/DwTWVpn7_Mk

    Ramesh
     
  16. Gary Haynes

    Gary Haynes Administrator
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    Ramesh better to do the test in forward flight. Anytime you are hovering is the worst situation since you are sitting in a bubble of 'dirty' turbulent air. What gain settings do you have?
     
  17. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Ramesh:
    In the first part of the video you appear to have the copter descending into it's own prop-wash -- the turbulent air below the copter.
    That's unfortunately not a very good test as the whole airmass is very turbulent. So if you have the Radians on for that part, it's a pretty harsh test.

    You will need to experiment some more with the correct gain settings on the bench with the copter suspended....tap the gimbal and see how quickly the vibrations are damped. What you're look for is that sweet spot between the oscillations being damped but without it being "wooden" in it's response. When you tilt and roll the copter the gimbal should respond quickly, but, as I say, when you tap the gimbal, then you should see the oscillations die away within, oh, say, 250-500 milliseconds.

    When you are adjusting the gains, you can initially go up or down by large values, but as you refine the setting you should be reducing the increment and decrement until you're only changing it by 1% at a time.

    Hope this helps.
    Andy.
     
  18. Ramesh Tahlan

    Ramesh Tahlan Member

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    Gary and Andy
    thanks for that input.
    i had left the gains at 100%
    I have not brought Roll and Tilt Gains to 60%
    will do another test run with radians on and then off
    will take videos while going up and then moving forward in both situations
    hope to see some improvement
    i am actuallly encouraged after seeing the video with radians off
    so it is confirmed that i need to play with the gains definitely.
    Ramesh
     
  19. Carl Carlert

    Carl Carlert New Member

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    Hello, i have a quick question. Im planning to buy the Radians for my 2-axis camera gimbal on my Cinestar 6. Im a single pilot. Im running Wookong eletronic and Spektrum DX8 with AR8000 and satelitte. I wounder how i connect the radians so i can control the modes and tilt for the camera. Do i need another satelite or can i just connect the radians from the AR8000 that i controll the copter from?
     
  20. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Hi Carl:
    You can just connect up the Radians from appropriate channels on the AR8000.

    Andy.
     

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