|Nov 05, 2013, 05:46 PM|
Joined Aug 2012
Choosing the right radio
I am planning in building a foam UglyStick for FPV and am i starting researching on suitable hardware starting from the most crucial part which is the radio.
It is imperative to find a correct radio because it costs omething like 1/3 of the project and you will probably carry it around and use it for many generations of models.
Keeping in mind that an FPV plane uses at least 2 frequencies one for video one for control, i think it is wise that those freq be far apart.
So i am looking for a complete set of transmitter, receiver, etc at 433mhz since this frequency can go further, its good at penetrating through objects and its away from the polluted 2.4ghz band.
So i asked HobbyKing some questions.
According to HobbyKing's support this is a nice setup with all components compatible with each other. Theoretical range is 3 to 5 km @433mw with 100mw output power (there is also an 1 watt version but they currently have it only for futabe radios a JR version is soon to come)
This is supposed to me a programable radio and NOT plug and play, but this doesnt mean you need manual text coding there is a gui windows program that makes things simple.
What i would like to know from you guys is if my choice of hardware is correct and if you have something better to propose.
i will need your help reviewing and verifying my hardware choices since you have more experience and have tested lots of hardware. So if you bare with me i will be more than happy :P
|Nov 05, 2013, 07:18 PM|
I've had experience with the 9XR, but not the 433MHz radio gear. So I really can't talk about that. I like the 9XR, despite its looking like something a Cylon would use to fly a plane. It's flexible, relatively inexpensive, and takes a modular transmitter. So even if the 433MHz gear doesn't work out, you can always swap out your Tx and Rx and keep flying.
That brings up the one caution I'd throw out:
It really doesn't have anything to do with the radio. It's your comment that the radio is 1/3 the cost of the project. No doubt that's true, but over time those costs may go up. Planes do crash. Gear does get damaged. And you may change your mind about some of your design choices later on in the game.
If the 9XR doesn't pan out for you, don't sweat it. It's $50, and you can always take your 433MHz radio gear and pop them in a different handset. If the 433MHz stuff doesn't pan out, don't sweat that either. It's $60 or so, and you can always replace it with another module and receiver.
It's important to research your gear before you buy, and I applaud you for doing so. But it's not the end of the world if things don't work out the way you expect. I think you'll be fine.
|Nov 06, 2013, 04:31 AM|
Joined Aug 2012
Thanks for your quick reply benedict.
So from what you said the 9XR is a valid choice and i won't have any problems with it. Can you please also verify that my other choices are correct too and that they are compatibles with each other ?
What i am trying to do is get to know my gear before i purchase anything because i want to buy them in one order and that order to be correct .
Does anyone have any experience with programming the 433mhz transmiter module and the receiver ? its not plug n play and i want to know what i am up against.
Thanks for your help
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