Espritmodel.com Telemetry Radio
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Old Jan 10, 2012, 07:48 AM
Chinglish-funny
Joined Mar 2011
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Originally Posted by pyrojets View Post
Hey sid, love the rangelink, managed to do 3.1km LOS today in populated areas and it was between 99%-100% throughout.
thanks mate.


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Old Jan 10, 2012, 08:00 AM
Chinglish-funny
Joined Mar 2011
786 Posts
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Originally Posted by NDw View Post
Hi Sid if I was making an extra antenna what lenght do you recommend for the elements?
recommend to use the RG178 Coaxial Cable, less 1m. as short as possible. at 433MHZ, Attenuation about 1dB (lenght = 1m).


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Last edited by sid.huang; Jan 10, 2012 at 08:07 AM.
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Old Jan 10, 2012, 08:14 AM
Registered FPVer :)
markus123456's Avatar
Switzerland, LU, Buchrain
Joined Aug 2006
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Quote:
Originally Posted by NDw View Post
Hi Sid if I was making an extra antenna what lenght do you recommend for the elements?
If by "elements" you refer to the radiating two parts of the dipole, then their lenght should be 16.4cm to be reasonate at around 433Mhz.

HTH

Markus
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Old Jan 10, 2012, 08:18 AM
Chinglish-funny
Joined Mar 2011
786 Posts
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Originally Posted by markus123456 View Post
If by "elements" you refer to the radiating two parts of the dipole, then their lenght should be 16.4cm to be reasonate at around 433Mhz.

HTH

Markus

thanks markus, i think i misread.
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Old Jan 10, 2012, 09:25 AM
Crash=start of next project
CN I Dawg's Avatar
United States, CA, Los Angeles
Joined Nov 2010
653 Posts
Antenna Refresher

Some antenna refresher stuff
http://flitetest.com/forum/showthrea...4-FPV-Antennas
Antennas 101 - Polarization, Diversity & Gain Patterns (27 min 56 sec)
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Old Jan 11, 2012, 12:40 AM
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Teamsherman's Avatar
Australia, NSW, Picnic Point
Joined Aug 2011
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Is anyone here using rangelink and Foxtech goggle head tracker?

I usually use the ppm out on my DX8 but now it will be taken up by the rangelink so I have no idea how I'm going to use it again.
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Old Jan 11, 2012, 01:32 AM
Chinglish-funny
Joined Mar 2011
786 Posts
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Originally Posted by Teamsherman View Post
Is anyone here using rangelink and Foxtech goggle head tracker?

I usually use the ppm out on my DX8 but now it will be taken up by the rangelink so I have no idea how I'm going to use it again.
An idea to find out the signal:
foxtech goggle header tracker ,it support futaba radio,right?





the pin6 is a ppm signal out from goggle header tracker.... connect it to the rangelink HTPPM pin, would be ok. also you can powered header tracker from the rangelink HT Port.

u need to do some solder.


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Old Jan 11, 2012, 02:48 AM
Chinglish-funny
Joined Mar 2011
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Originally Posted by CN I Dawg View Post
a good resource,,,, thanks for your share the link...


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Old Jan 11, 2012, 02:50 AM
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So do I need a ground from the headtracker to the rangelink unit? The goggles are already ground via the battery it runs off, and the rangelink will be ground by its own battery too.
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Old Jan 11, 2012, 05:57 AM
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Australia, NSW, Picnic Point
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Also does the rx have failsafe settings?
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Old Jan 11, 2012, 07:11 AM
Chinglish-funny
Joined Mar 2011
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Quote:
Originally Posted by Teamsherman View Post
Also does the rx have failsafe settings?
yes,it has. check the rangelink manual.pls


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Old Jan 11, 2012, 07:18 AM
Chinglish-funny
Joined Mar 2011
786 Posts
I usually use the ppm out on my DX8 but now it will be taken up by the rangelink so I have no idea how I'm going to use it again.

> the goggles can works with DX8? how ?


Quote:
Originally Posted by Teamsherman View Post
So do I need a ground from the headtracker to the rangelink unit? The goggles are already ground via the battery it runs off, and the rangelink will be ground by its own battery too.
not clearly, maybe you can show me the connecting diagram.


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Old Jan 11, 2012, 05:46 PM
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Sid, I am just unclear of the ppm signal from the goggles to the RL TX. Is it just the single wire of ppm or does it need a ground also coming from the goggle to the RL?

The DX8 uses the ppm port and channels 5 and 6 for headtrack.
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Old Jan 11, 2012, 05:57 PM
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And where can I find the manual? I didn't receive one with my RL.
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Old Jan 11, 2012, 06:12 PM
Chinglish-funny
Joined Mar 2011
786 Posts
sorry, it on my blog: rangelink manual
http://www.rcgroups.com/forums/member.php?u=352541


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