FlySky FS-i6x 433Mhz Mod low range

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Buzzliteyear
Posts: 30
Joined: Wed Sep 11, 2013 10:20 pm
Country: New Zealand

FlySky FS-i6x 433Mhz Mod low range

Post by Buzzliteyear »

Hi
Im having a range problem using 433mhz orange HK modules in flysky i6x ?

I have 6+ radios with hawkeye- deluxe,orangetx,orangerx,flytron,
even using a orange Rx as a tx works better
all different radios all work very well

I have fitted orangetx inside my new Flysky radio to PPM trainer port and get low performance beeping at 2-5ks

same module in futaba radio and dont get any beeps to 5 ks
same module in another radio in its fine also
tried two different modules in Flysky radio they all perform low.

I can hear the flysky through my computer speaker is not as powerful
the futaba radio is twice as loud
the deluxe module is 4 times louder again (1 watt)

the ppm voltage on the flysky is 2.75 volts 0.70-0.80ma and 0.45volts 0.2-.04ma on the futaba if that means anything
looks like the futaba ppm signal is inverted as cant see it on my arduino scope
https://youtu.be/f9mzalNyVR0
and that are the two things that are different

this has got me stuffed

regards
Brett
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Tx label.jpg

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Kilrah
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Re: FlySky FS-i6x 433Mhz Mod low range

Post by Kilrah »

What power supply? The i6x seems to run off 4 AAs, the 1W module will never work correctly with that. Need 7V minimum and lots of current.
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Buzzliteyear
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Joined: Wed Sep 11, 2013 10:20 pm
Country: New Zealand

Re: FlySky FS-i6x 433Mhz Mod low range

Post by Buzzliteyear »

Thanks Kilrah,
this module is 100mw and only draws 67.5ma from 4xAAs
if I use a 12 volt lipo straight to module it only increases 1.5ma to 69ma
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Kilrah
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Re: FlySky FS-i6x 433Mhz Mod low range

Post by Kilrah »

It is still rated to 7V min.

These things use very short high current peaks, and if the supply falls short the signal will be distorted. DC measurement means little. See if you get good range with 12V.
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Buzzliteyear
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Joined: Wed Sep 11, 2013 10:20 pm
Country: New Zealand

Re: FlySky FS-i6x 433Mhz Mod low range

Post by Buzzliteyear »

Ok only ground testing today as to windy but I changed the Tx and split the voltage with UBec
6 volts for radio and 3s for the 433 module
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Buzzliteyear
Posts: 30
Joined: Wed Sep 11, 2013 10:20 pm
Country: New Zealand

Re: FlySky FS-i6x 433Mhz Mod low range

Post by Buzzliteyear »

Ok i had time to do a range ground test today
interesting I found where the Antenna was held/mounted on the Tx makes a difference
interference from outside source like DVR makes a difference
Antenna design makes a big difference Moxon vs Vee
lots of outside interference to watch out for.....
1 watt vs 100mw there is not much gain if antenna is not working as well
I made a video sorry its long

https://youtu.be/yH53dr6gY-U

cheers
Brett

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