Change antenna on D8R-II

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nickxab
Posts: 142
Joined: Mon Jun 25, 2012 7:32 pm
Country: Greece

Change antenna on D8R-II

Post by nickxab »

Hello team !
Long time no see ! :D

I have a Fr-Sky D8R-II Plus receiver and somehow i managed to cut bot antenna cables, the tips of the cables to be exact.
Some days ago i installed this receiver into a gas boat and i noticed that after 10-15 meters it had no signal so i wanna change antennas.
The current state of the receiver:
Image
Image

How it was from the factory:
Image

I don't know much about antennas :roll:
Is this the problem that lose signal ? Should i replace the cables ? I have cables from a laptop wifi antenna it's almost 0.5m long.
Does it matter if i solder longer cable ?


Thanks in advance guys ! :D

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MikeB
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Re: Change antenna on D8R-II

Post by MikeB »

Yes, that is the range problem!
The antenna cables are (very thin) coax. What you need to do is strip the outer black cover and the outer copper screen to leave the inner conductor with the clear insulation over it. This is a tuned length so you need 33mm stripped.

Mike
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!
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nickxab
Posts: 142
Joined: Mon Jun 25, 2012 7:32 pm
Country: Greece

Re: Change antenna on D8R-II

Post by nickxab »

MikeB wrote: Mon Mar 25, 2024 11:31 am Yes, that is the range problem!
The antenna cables are (very thin) coax. What you need to do is strip the outer black cover and the outer copper screen to leave the inner conductor with the clear insulation over it. This is a tuned length so you need 33mm stripped.

Mike
Thanks for the reply Mike :D
Oh i see ! I have one cable that's 29 cm. I can make 2 of them (18cm each). Will i have to strip also 33mm or it changes according to length ?
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MikeB
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Re: Change antenna on D8R-II

Post by MikeB »

Always 33mm, this is the tuned length bit.

Mike
erskyTx/er9x developer
The difficult we do immediately,
The impossible takes a little longer!
User avatar
nickxab
Posts: 142
Joined: Mon Jun 25, 2012 7:32 pm
Country: Greece

Re: Change antenna on D8R-II

Post by nickxab »

MikeB wrote: Sun Mar 31, 2024 7:58 pm Always 33mm, this is the tuned length bit.

Mike
Mike, you are a savor :D :D

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