I am having problem with upload command from flight data. Eg Change altitude, restart mission ect. I do not have this type of problem with the previous Mission Planner. When I try to change altitude, a fail massage window appear. I also can not write param to APM while flying. But if the plane had landed and close by my computer, there is no problem. Anyway I can establish connection between the two data modem with ease.
I'm using RDF900, am I doing something wrong in 3dr radio setting ? Thanks for your help.
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I don't know which is best I guess I just assumed a high gain antenna on each end would be good if possible. But I really don't know.
One interesting thing I noticed is I have an older version of mission planner that has the 3DR radio set up and the power options goes up to 30 unlike the newer versions that only go up to 20. I also noticed the RFD900 data sheet suggests a range of apron 10 miles. I think it used to say 30. Not sure why that is. But after I set mine to 30 it got noticeably warm. not hot.. but you could tell it was working at the 30 power level. And yet another observation... another RFD900 with the same settings on the ground side does not get warm. I wonder if this is because the air side radio is doing all the 'talking'??
I have a pair of RD 900. I haven't installed it on my plane yet. My radio's shipped with 2 small ones and 2 big ones. I thought each radio got one off each is this not the case? Sorry to jump in the thread here...
Hi Steven,
I'm having range problems with my RFD900 - perhaps you can help. Could you post your settings perhaps?
If you have the time here are details on my issue -> http://ardupilot.com/forum/viewtopic.php?f=94&t=7811&p=1740...
Steven,
Thank you for your reply, very much appreciated! I will make this change immediately.
Should I be using both antennas on the air side? As i was searching around I see people use 1 on the air side; not clear why.
In the manual it says:
Does this mean I should be taking a 20-30cm piece of copper tape and stick it on the bottom of the airplane, with a peice of the copper tape touching the ground of the antenna?
awesome - I did recently order those antennas so I have these two: they look different than what you linked.
And as for the ground plane - i'm glad it doesn't make a huge difference, but in the position I am in now + the use of "required" i'm inclined to try.. just to be sure:
-can I put this 20cm diameter copper ground plane on the base of the wing, under where the rfd900 is mounted? or does it have to be literally under the rfd900?
-does it matter if I physically connect the ground plane to the ground of the antenna?
Did you ever figure this out? Also I was thinking of getting a RDF900 have you been happy with it? What range do you get. Thanks!
RK
Just trying to keep you busy. ha Got mine here. rfd was out of stock at the time. thanks for the links!
http://store.jdrones.com
thanks!
i've been purchased the last 2 modems and 4 antennas from event38.com. US supplier, delivers in a couple days vs 1-2 weeks.
Guess I should ask such questions here
http://diydrones.com/forum/categories/antennas/listForCategory
Oh yea this guy!!!! I bookmarked this thread awhile back. How cool was that for him to spend all that time posted all that for us. Nice.
http://www.rcgroups.com/forums/showthread.php?t=1159968
again... wrong forum.. opps sorry
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