Seppo
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  • Brisbane, QLD
  • Australia
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Seppo's Discussions

Drones to become target practise for Australian farmers !

Started this discussion. Last reply by Greg Fletcher Mar 31, 2013. 1 Reply

Ran across an interesting thread discussing the proposed use of UAVs for cattle monitoring.I imagine it'd sure get expensive quick !    …Continue

RFD900, RFD900+ - New long range radio modem

Started this discussion. Last reply by siyamand moloudnejad Jun 20. 280 Replies

Hi All,I would like to introduce you to a new radio modem that we developed for very long range datalinks!http://rfdesign.com.au/RFD900.phpSome of the…Continue

No GPS Altitude update on arduplane 2.27a / apmplanner 1.1.13

Started this discussion. Last reply by Seppo Jan 2, 2012. 2 Replies

Ran into some strangeness with the GPS altitude on the latest firmware.On initial bootup, GPS gets a 3D fix, and the altitude is correct on apmplanner.Taking off and flying, the altitude remains…Continue

Throttle weirdness on arduplane 2.26/ apmplanner 1.1.2 vs. normal on 2.24/1.0.88

Started this discussion. Last reply by Don Brooks Dec 9, 2011. 3 Replies

Gday,Things are fine with the old combination of arduplane 2.24/ APM planner 1.0.88With arduplane 2.26/ apmplanner 1.1.1 or .2, I can't get throttle settings to work.Have gone through…Continue

 

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Latest Activity

siyamand moloudnejad replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"thinking if i can hook up my tx "which is running uhf433" to this data radio and get rid off uhf 433. is that actualy possible i have searched alot about it and still searching. feiyu-tech is selling remote adapter which can be connected…"
Jun 20

Admin
Thomas J Coyle III replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"@Ivan R, Maybe the final power amp in the transmitter section is failing or the sensitivity of the receiver section has fallen off drastically. Since you have reset all parameters to their defaults, it is probably not firmware/programming…"
Jun 10
Raph replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"HI Ivan, Many things can cause this, usually interference from other devices on your copter. Check for any new equipment you may have installed (BEC's, VTX's etc), and start unplugging them until you find a cause. Good luck!"
Jun 10
Ivan R replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"all sudden my RFD900 range has been drastrically reduced to a few hundred meters and I cant figure out why? I tried resetting all parameters to default, reflashing the firmware, checking all connection and no luck....what would be some reasons for…"
Jun 10
arga firmansyah replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Somehow i'm not really that will help, but will try that this weekend. I have try to use 3 different computer and came out the same result. I have 2 hexa and both of them bahave the same as well."
May 21
Joe Street replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"you could try putting some Ferrite beads on the communication leads as close as possible to the ends.  It could be that RF that strong is coupling into the com lines and causing the problem.  If you can shield the boards it might also help…"
May 21
arga firmansyah replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I have RFD900 both on the hexa and the ground control. TX power from the default setup is 20dbm. I have tried to change the tx power to 30 dbm with success but unfortunately it can't connect on mission planner if the tx power is 30 dbm. I have…"
May 21
Seppo commented on IKE's blog post Multiple tethered quadrotors performing high-g, high-speed formation maneuvers
"wow, that is impressive...  Nice work !"
May 6
Ivan R replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"wow, i just installed mine RFD900 set on my 650 quad and these things are amazing...well over 2km with lot of tree obstructions on the way...am very pleased.."
Apr 25
Carl replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi! I wrote to jDrones and asked them if these are legal to use in Europe and got a positive reply. So I am also interested in the difference between these and the rfd900+ from rfdesign? Regards"
Apr 23
Hans Miller replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi Jani, Are these new features oem, or are they jdrones modifications?"
Apr 21

JDrones
Jani Hirvinen replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"For those who have not seen it yet. jDrones RFD900 set is even better now. No more FTDI cable, new RFD900Plus set have all interior re-make. Mini-USB connector on Ground modem and DF13 on Air modem. Set includes cables for both APM and Pixhawk…"
Apr 21
Henri replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"That is the only modem we use. 900 MHz range as 433 is used, here, by many heavy machinery such as cranes forklifts etc.. The rfdesign one has never failed us. We do have now a number of them! It is really flexible and you can tune many parameters…"
Apr 20
Ravi replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I just now bought a RDF900+. when I write the mission and then read the mission the last command vanishes from the mission planner. this does not happens when I use other modems. I would like to use a previous version of firmware. can someone…"
Apr 19
Richard Kennedy replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Wow great info / links thanks! "
Apr 15
Joe Street replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"There is a really awesome highly directive yagi antenna for 900MHZ you can build at home with simple tools for about 5 bucks included in this group of antenna designs.  You can mark the elements and wood boom so you can take them in and out for…"
Apr 15

Profile Information

About Me:
Engineer, Pilot, General Geek and interested in anything electronics, flying and any random cool thing of the moment
Please tell us a bit about your UAV interest
Variable pitch quadcopters, UAVs for the outback challenge
Hometown:
Brisbane

Comment Wall (1 comment)

At 12:44am on December 29, 2013, mParets said…

Hi. I'm struggling in an attempt to get a pair of RDF900 modems talking to each other. When installed on a Raspberry Pi via USB and seems to work find (responds to +++ to enter AT command mode). When installed on my Windows 8 laptop I get nothing. The status light flashes, I get a red flash when I transmit a key press (testing with Pythons Miniterm). I even down graded Usb driver to the .28 version as suggestion in forum post. No luck on any front get a response on the pc, and no suggestion that the two modems are connecting.

Is there a fix for any known issues with Windows 8?

Is there is tutorial/primmer/testing document? Something that I could follow to make sure I am setting everything up right?

Any suggestions would help.

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