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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 Ikaros on Thursday. 440 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

Ikaros replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I have now verified that if I use the RSSI debugging functionality with AT commands the data looks good, RSSI is around 250 and noise around 60. So it is something in the pixhawk logging."
Thursday
Ikaros replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I have a problem with the telemetry logging of the RFD868+ on Pixhawk. If I look at the logs from a 3DR radio it looks like this: But if I instead fly with the RFD868p it looks like this: Do anyone know what the problem might be? "
Wednesday
Seppo replied to Aussie in AZ's discussion 3DR telemetry no longer supported by 3DR....options?
"Hi, I don't see modems in the 900MHz band becoming obsolete at all.  The frequency band is available in a large number of countries with pretty good license conditions (1W in Aus, and 4W EIRP) in the USA being available.  The…"
Jan 29
Seppo replied to Aussie in AZ's discussion 3DR telemetry no longer supported by 3DR....options?
"One option available that is relatively inexpensive is the RFD900u modems: http://store.rfdesign.com.au/rfd-900u-radio-modem/ A pair of these is around $98 USD with the current exchange rate! Good thing is these have filtering, low noise receive LNA…"
Jan 23
Jose Alberto Soler replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I'm having a problem sometimes with the link quality being bad at boot up, even with both modems very close together (around 1 meter) This also makes the "Getting Params" process slow. Is this process necessary or can I skip it? Thanks"
Jan 14
Chris Khosravi replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Here's a revision to my enclosure design. This one is intended to mount to booms(tubes), masts, etc. Will custom make any clamp up to 30mm for you (ad shows 20mm boom): RFD900 Enclosure"
Jan 8
David Boulanger replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Jose; With fixed wing I think you would be O.K. for long range.  Landing... not so much.  The latency I have seen in the boat is barely noticeably if at even at all.  Just my experience so far.  I would not be comfortable using…"
Jan 7
Jose Alberto Soler replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"lol that sucks, never happened to me but I will to take into account. The problem is fix wing airplanes usually need lower latency in control than a boat. I used the low latency setting on the modem and it is bordline usable for manual flight, but…"
Jan 7
David Boulanger replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Jose, I'm using a joystick, mission planner, and a RFD 900 for control over a boat.  Works great as long as your computer is not scheduled to install updates while you are using it.  Had a problem with that once. Regards, David R.…"
Jan 5
Vincent Hoog replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I am interested in a one-to-many application. (one ground control, many rovers) Does this modem support one-to-many application? Thanks"
Jan 5
Jose Alberto Soler replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi. I just wanted to say thank you for the fast shipping and the great product. It worked right out of the box and link quality is the best I have seen. I was wondering how the RCLink project has developed? Is someone using the RFD900 to also…"
Jan 5
Chris Khosravi replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Have you tried swapping your TX/RX wires? TX on ground radio should go to RX of FTDI adapter, vice versa for RX on ground radio. TX on aircraft radio should go to RX on Pixhawk/APM telemetry port, vice versa for RX on aircraft radio."
Jan 4
Peter McNamee replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi everyone, I purchased the RFD900+ radios for my drone and I'm using Android Tower app also mission planner, my problem is I receive telemetry but I cannot upload or download waypoints or parameters, can anyone help?"
Jan 4
Henri replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Not only the RFD900 modems are reliable but are a direct fit with Mavlink. I do have used a dozen of them now without a glitch! It is better to give them a 'clean' power (5 Volts) as it seems to connect better. The service provided by…"
Jan 3
James tate replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I'm not in Europe."
Jan 3
Carsten Groen replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"A good place (and reasonable priced) if you are in Europe: https://materialise-onsite.com/en"
Jan 3

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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