Cheap alternative 9 Channel tx

Started by Coyote, October 07, 2010, 11:49:37 PM

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RyanMac

Is this still running 2.4Ghz?

I am tempted by this but I would like it to be 35Mhz....

ORCA

If you want to convert this system to a better 2.4gHz system, FrSky, with a better selection of Rx then this video may be of interest:
Installing the FrSky 2.4GHz DIY kit in a HobbyKing Turnigy 9X radio

Use this hack modul from GC:
http://www.giantcod.co.uk/frsky-24ghz-conversion-hack-module-p-405206.html

8 channel Rx:
http://www.giantcod.co.uk/24ghz-frsky-receiver-v8frhv-p-405319.html

4 channel Rx:
http://www.giantcod.co.uk/24ghz-frsky-receiver-p-404806.html

Hope this is of interest to some.
Age and Treachery Will Always Overcome Youth and Enthusiasm

IWCoburg

I'm stil on the supplied 2.4 but as Giantcod as the UK suplier for Frsky I feel another update comng one :). The Frsky does give you a proper failsafe which will be needed for what I want to do.

There is also some downlink telemetry mods as well :)

Mike.
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Lots of multicopters

ORCA

By the way if you want a bit more get up and go (higher Tx o/p - Futaba and Spektrum are 100mW, FrSky is a bit less) then its quite easy to use any one of a number of two way Wi-Fi boosters powered from a 6v regulator. Plenty of room inside for this 500mW unit:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=280631580884&ssPageName=STRK:MEWAX:IT

But, you would probably have to put one of these 1000mW units (also available as 2000mW) on the out side:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=290361341927&ssPageName=STRK:MEWAX:IT
Age and Treachery Will Always Overcome Youth and Enthusiasm

RyanMac

By using the 1000mw or 2000mw units what sort of range will you be able to achieve?

I thought the 2.4ghz systems were very limited.....

Coyote

Your range should be massive but ill advised. You will get into deep deep trouble :(
Education and schoolin is good, but FPV is gooder :)

IWCoburg

As most of my predicted flying will still be considered LOS, I'm going to be sticking with the standard FrSky setup for the time being. Yes high and far is neat, but just not my thing (well not yet anyway :)).

So far the mods have been as easy as advertised and I have a nice system that will meet my needs for the time being.

Mike.

PS. If you know wnayone who wants a Turnigy 9X8Cv2 reciever I have one going spare now  ;D
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Lots of multicopters

IWCoburg

New toys arrived today so 30 mins and all fitted. I watched th video first to confirm what was required and checked it against wah tI have here. All ok so good to go. Openend up the case again (this keeps up it's getting fitted with hinges  ;D)

Stripped out all the old parts so clean and clear.



Next job was to fit the ariel. Now with this I have elected to be able to replace the rubber duck as needed so I have opted to leave the connector in the case. I screwed the two nuts together with a crinkle washer in between. The used some hot melt glue to hold the socket securely in the antena base in the case.  This now means I can unscrew the ariel and swap out as required without stripping it all down.



Next job was to solder the 3 wires as shown.



Last thing was to mount the button and indicator pannel. The place chosen in the video seems a good choice so drilled off the case are needed and I have used 2 2mm screws with nuts and washers to locate the board. This means it can come out cleanly and allows for better servicing should the need arrise.



So Buttoned it all up, applied power and bound the reciever. Jobs a good'n.

Mike.
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Lots of multicopters

Coyote

Nice neat conversion looks great, and cheap too :)
Education and schoolin is good, but FPV is gooder :)

IWCoburg

I think it would be quiet practicla to swap out the rf stage in this and pop in a 35Mhx unit. You could get a cheap 3 or 4 channel box, strip the rf section and pop it in. All your after is a Tx stage that supports a PPM train which is the norm. Replacing the ariel is easy and there is plenty of room in the back to fit a module.

Got to be worth the investigation as it is a cheap fully functioning system.

Mike.
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Lots of multicopters