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Seppo's Groups

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 Scott W on Tuesday. 582 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

 

Seppo's Page

Latest Activity

Scott W replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Pin 15 is what is assigned to PPM in/out.  So, you can either connect a cable from your transmitter accessory port to the RFD, or you can connect a receiver to the RFD.  If you connect a receiver to the RFD, you basically use the…"
Tuesday
Richard Sterling replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Can some one please tell me the best way to mount the RFD modems. I can mount it with double sided foam tape or I can mechanically fasten it with screw mounts and spacers. If I hard mount it will it be affected by vibration? Thanks in…"
Monday
fred flintstone replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
" "
Dec 1
Thomas Stanley-Jones replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I'm trying to visualize what I would need to replace the radios on my plane and quad with an RFD 900x.  I'm not sure how to connect my FrSky Taranis, or Spektrum, controller to the PPM on the 900x which would also be connected to the…"
Dec 1
kent Martin replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Scott, Hmmm, I'm not sure I'm allowed to say? "
Dec 1
Scott W replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Thank you, Kent.One more question.. Any plans to release a mini version of the 900x?"
Nov 30
kent Martin replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Scott, Hopefully we'll get some time to look at SBUS. In the mean time hassle Arducopter to support 16 channels PPM. We support up to 16 in PPM now.  It is not envisaged for us to have interoperability with 900x and 900+. The 900+…"
Nov 30
Scott W replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Kent, I'd be very interested in SBUS, because there are some limitations w/ PPM and Arducopter (only supports 12 channels PPM), and the little PPM/SBUS decoders usually have more functions with SBUS (like the ability to output 9-16 instead of…"
Nov 30
kent Martin replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"PPM latency is linked to the window timeslot. Usually set to about 100mS (@64K). It is also affected by how much data is being sent back down at the time as it can use unused portions of the aircraft side downlink (unless there isn't…"
Nov 30

Developer
davidbuzz replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"PPM over the 900+ is not currently possible, at all. Its a new feature of the 900x, which have a more powerful processor onboard. "
Nov 29
Ravi replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"can someone suggest if the PPM input and output via pin15 is possible on older RFD900+. would the firmware needed to be upgraded on RFD900+. I had been thinking about this for a long time since I fly long distance fixed wing aircrafts."
Nov 29
Mike Mac replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I see that the 900X has just become available. Does anyone have more information or specifications? "
Nov 16
Dan Ho replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Interesting. Thanks"
Nov 15
Scott W replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I have not flown with it yet. Latency is noticeable when moving a servo... similar to video lag.  I'm working today, so can't give you better info at the moment.  (I didn't measure it at the time I was working on it.. I was…"
Nov 15
Dan Ho replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi, since you've got the RC link working, how is the latency? Have you had a chance to fly with it yet? "
Nov 14
JB replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Also received some 900x's in the mail today after ordering them last Thursday. Looks good so far, but I'm still looking for the latest mesh/PPM firmware and GIT. Anyone know?"
Nov 14

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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