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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 - New long range radio modem

Started this discussion. Last reply by Horace Cunningham Sep 9. 188 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

Horace Cunningham replied to Seppo's discussion RFD900 - New long range radio modem
"Thanks for the info Seppo. One concern I have about using a yagi on the repeater rather than a high gain dipole is that the aircraft would lose gain if it is not directly aligned in the transmission beam of the repeater. For example: I have…"
Sep 9
Seppo replied to Seppo's discussion RFD900 - New long range radio modem
"Just a quick update on things that we're up to ! We have just added some more antennas to the online store - 6dBi outdoor, omnidirectional antennas which are good for more permanent, rugged installations.   Some more 900MHz antennas are…"
Sep 9
Seppo replied to Seppo's discussion RFD900 - New long range radio modem
"Hi Horace, That certainly sounds like an interesting application.. The only practical way of setting up a repeater network as you describe would be with 2 modems back to back at southwest rock - each modem there would have it's own network…"
Sep 9
Horace Cunningham replied to Seppo's discussion RFD900 - New long range radio modem
"I would also like to know if the plans/schematics for the RFD900 is available "
Aug 30
Horace Cunningham replied to Seppo's discussion RFD900 - New long range radio modem
"Hi Seppo, fantastic work on the RFD900. My name is Horace and I am part of a Jamaican UAV dev team working on an ambitious program which involves the use of UAVs in anti IUU(Illegal, Unregulated and Unreported) fishing. We are currently working with…"
Aug 30
Shameem Ferdous replied to Seppo's discussion RFD900 - New long range radio modem
"I can't see any LEDs. Mine are from Jdrones."
Aug 19
Seppo replied to Seppo's discussion RFD900 - New long range radio modem
"Hi Shameem, Were you able to get the modems to link up OK? - If you can see the LEDs on either modem, you can see if the modems have connected between each other by a solid green LED.  If the green LED is flashing, they are not linked and most…"
Aug 18
iskess replied to Seppo's discussion RFD900 - New long range radio modem
"You cannot use telemetry if you are hooked up via USB."
Aug 16
Shameem Ferdous replied to Seppo's discussion RFD900 - New long range radio modem
"Hi, I just got my RFD900 modems from JDrones. They are cased in physically different casing than that of rfdesigns versions. And the air module comes with a telemetry cable whose connector does not snug fit the telemetry port on my APM2.5 board. I…"
Aug 16
Seppo replied to Seppo's discussion RFD900 - New long range radio modem
"Hi!, Just a quick update - we have a bunch of new cables in stock to connect RFD900, and RFD900u's to both APM2.5 and Pixhawks in stock!  - This should make connecting things up easier :)"
Jul 20
Seppo replied to Seppo's discussion RFD900 - New long range radio modem
"Dynamic power control available for Beta testing It has been a very long time since writing - we have been keeping busy with all kinds of project work and when we have a chance, designing new hardware We have some new software features which…"
Jul 15
Seppo replied to Seppo's discussion RFD900 - New long range radio modem
"Hi Rick, The FLEX1 antenna can be used in both of the cases you describe.  If you have the choice of mounting it on the bottom of the fuselage, or side, - I would go for the side, providing there is good clearance from metal. Cheers, Seppo "
Jul 15
PY replied to Seppo's discussion RFD900 - New long range radio modem
"Hello Seppo, Any news on that project to make the RFD900 an RFD868 or 433 MHz? Thank you, PY"
Jul 9
Richard Kennedy replied to Seppo's discussion RFD900 - New long range radio modem
"I have both RDF Flex1 and RFD Flex2 antenna's. From reading through this thread I see the long thin one [ Flex 1 ] goes horizontal [ I think it would be wise to state that with the product ] . My question is I know the long part should go…"
Jun 22
Raph replied to Seppo's discussion RFD900 - New long range radio modem
"Eladio, Thank you for your input! I will check the antennas. Another user said that I have my antenna orientation completely wrong on the plane, which could be the cause of my issues. I have replaced them with 90 degree antennas so they are pointed…"
May 13
Eladio Garcia replied to Seppo's discussion RFD900 - New long range radio modem
"Dear Raph, First of all, check your antennas (inside the rubber cover, if possible) and their connectors (if you haven't done it yet). You have very low noise levels but your rssi are not so high for two modules been so close. And 150 m is a…"
May 13

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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