Comments

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  Hotwire July 28, 2015 at 5:12pm

  Why no use it, even if you stack it? You just may change your mind
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  Justin L June 24, 2015 at 4:37am

  Just want to let people know that as of today, the Solo is now available for preorder in Australia from here
  www.gooutdoorsaustralia.com.au
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  Hotwire June 21, 2015 at 6:32pm

  Are there any multirotor racing groups in Sydney or NSW??

  If so does anyone have any contacts?

  Cheers.
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  Michael April 13, 2015 at 6:12am

  I just wanted to know if anyone has info about the idrone device from fighting walrus. Will the 915Mhz work on a RFD900 or will I be waiting again for another version for RFD900.
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  Phil P April 11, 2015 at 1:54am

  Hi Fred, I think the USB radio uses the FT232R chip http://www.datasheetdir.com/FT232RL+USB

  So if you unsolder pins 1 and 5 on the chip you can connect wires to the pads on the PCB and solder these wires to the TX and RX pins of APM.

  So, yes techincally possible, but not something many would attempt. I run the RFD900 modules, so I can't check one physically. Maybe there is a breakout connection somewhere more convenient on the board?

  

  FT232RL datasheet, Pinout ,application circuits FT232R USB UART IC

  FT232RL datasheet,FT232RL Pinout Pin out,FT232RL application circuits can be download from datasheetdir
• 3qs7z40lxxok2 April 10, 2015 at 11:22pm

  Hi all need little help as always only on  weekend getting ready go out sunday

  my Telemetry air side has died on spares can i convert usb module to air radio ?
• 

  Warren Eather March 16, 2015 at 11:15pm

  Yep, Tim it's exactly the same document. Smug rights are all yours.
  And your right again. You would need an antenna of a gain greater than 10db to get yourself in trouble with the 3DR 915 at maximum output. That's another reason to get the 915 over the 433.
• Developer

  Bill Bonney March 16, 2015 at 10:42pm

  @Mitchell Berry: Radio Amateur take undertake study of how radio transmission work. How to build antenna and how to detect and mitigate the reception and the transmission of radio waves on unwanted frequencies (interference). Due to this expert knowledge they are allowed to do more with more power. 

  They still have a non-commercial license, and the expectation to help with communications in emergency situations.
• Mitchell Berry March 16, 2015 at 9:53pm

  Supposedly you are allowed much more power from 433MHz with an amateur radio license.

  I can't actually work out what a licensed radio operator does that makes them more capable of using that band? Is there some sort of CB frequency to announce your intentions to other people around? Doesn't make any sense to me.
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  Warren Eather March 16, 2015 at 9:35pm

  Thanks Hotwire, that's a good document.
  It's important to note that the maximum power stated refers to the Equivalent isotropically radiated power EIRP, that is transmitter power + antenna gain and not just the transmitter power.
  So for example if you had your RFD900 and a 3db antenna the maximum transmitter power setting to achieve a EIRP of 1W or 30dBm would be 30dbm-3db= 27dbm = 500mw that's half power!!