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 Paul Meier on Monday. 492 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

Paul Meier replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"RFD has a relay system for their modem so as to use one as repeater"
Monday
Dennis Okeefe replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I am working on an application for search and rescue where i need to relay telemetry from a low flying (search) vehicle to a high flying (relay) aircraft that re-transmits it to a ground station that is not in line of sight with the low flyer…"
Monday
cristian escudero replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hello, I benn using a pair of these 900+ units with great results, even when I only use one in my Iris+ for Mapping I get a lot more than the normal 3DR Radios can give me, I will love to Beta test any sample, Cristian "
Monday
JUAN JIMENEZ replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Thanks for your response Chris. what configuration should I use in mission planner for good range in a rural area? Thanks "
Sunday
Chris replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"You should get much better range from the RFD900's compared to the 3DR style radios.  I get 1.5 to 2 times the range just with a straight and 90 degree quarter wave antennas but it depends on the environment you are in.  Once you lose…"
Sunday
JUAN JIMENEZ replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi All,  I got a couple of these RDF900+ radios and they communicate okay to each-other from my copter to mission planner, However, the range is the same as the  3DR radios. Do I need to change some configuration to accomplish longer…"
Sunday
Dan Ho replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Thanks for the info, Kent!"
Jun 4
Dan Ho replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hmmm ... I wonder if Seppo would take a 900 as a trade-in on a 900x ;-)  Kidding! "
Jun 4
kent Martin replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Dan, The new modem will be a RFD900x not a RFD900+. The RFD900+ is the existing modem and I'm not completely sure of the state of encryption on that version, but I can tell you about on the RFD900x. On the RFD900x encryption is 128 bit and will…"
Jun 4
kent Martin replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Dan, No PPM is not available on the RFD900+, it is only for the new RFD900x due to be released soon...  I don't think this will be possible on the 900+ due to size constraints and other issues. Thanks, Kent"
Jun 4
kent Martin replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"ID, 1. PPM is a pulse coded output that holds R/C channel information about servo positions. It is a single pin output that can be interpreted by the filght controller to read the positions of your Radio control stick/switches/etc. What is it for?…"
Jun 4
Chris replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"I used their prepared binaries (http://files.rfdesign.com.au/firmware/) - choose the one for the 900+, I believe I'm using the 1.9 binaries and they are working well for me.  I also have tried the v2 for multipoint comms. Try the v1.12…"
May 12
Jason replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi Chris, I am building the firmware for RFD 9000+ (i think it is RDF 900p as well). I downloaded the source code from branch :https://github.com/RFDesign/SiK/tree/SiK. And Compiling is OK. Then I uploaded the new firmware onto one of my two radio…"
May 11
IronDOME replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Thanks for this clarification mate ID"
May 11
Dan Ho replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Hi ID, A good thing about these modems is that they use spread spectrum whereas GSM is narrow band.  When a spread spectrum receiver de-spreads the incoming signals, narrow band signals are significantly spread out and therefore reduced while…"
May 11
Dan Ho replied to Seppo's discussion RFD900, RFD900+ - New long range radio modem
"Seppo, a couple other questions - I assume encryption will only be available on the "+" version, true?  And is there any impact on the throughput? Thanks, Dan"
May 11

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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