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Old Dec 28, 2010, 07:29 AM
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Joined Aug 2006
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Ways to boost spektrum dx8 for fpv use?

Is it even viable to use a wi fi booster to mod my new dx8 or is it it better to get one of the older 72mhz radios with 2.4ghz modules to use a booster for fpv?
Can anyone point me to the right direction?

Thanks!
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Old Dec 28, 2010, 08:03 AM
Honey Badger
Blue Chip's Avatar
United States, FL
Joined Oct 2005
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Generally speaking - most here agree that an older radio running on 72mhs is much better than a 2.4 radio. I think everyone agrees that flyinf FPV with a spectrum is a lost plane looking for a crash site.

You are much better off going with an old Futaba 9cap on 72mhz. ReadyMadeRc has one in inventory for less than $200.
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Old Dec 28, 2010, 09:01 AM
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Old Blighty
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A festive analogy: Boosting a Spektrum system for long range is akin to fitting winter tires to a conventional car for use in the snow. You'll notice a vast improvement over the standard set-up, but if you plan to do a lot of winter driving far greater success and piece of mind will be attained utilising a vehicle specifically designed for the job. (i.e. UHF/433MHz).
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Old Dec 28, 2010, 09:05 AM
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Old Dec 28, 2010, 09:08 AM
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United States, CA, San Diego
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Quote:
Originally Posted by tdsounds View Post
Is it even viable to use a wi fi booster to mod my new dx8 or is it it better to get one of the older 72mhz radios with 2.4ghz modules to use a booster for fpv?
Can anyone point me to the right direction?
Jordi over on DIY Drones wrote up a article on how to do it..

http://diydrones.com/profiles/blogs/...ost-your-24ghz

Someone on this forum tested it. You'd have to dig around using the search feature to find the thread.
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Old Dec 28, 2010, 09:15 AM
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Old Blighty
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Lots of people have done it (myself included) and it works very well, but if you're in this for the long term, the general consensus is to invest in a UHF system.
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Old Dec 28, 2010, 10:46 AM
First to go over 106K feet
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United States, TX, Waxahachie
Joined Mar 2008
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Using a booster will work very well.
http://www.rcgroups.com/forums/showp...25&postcount=1
http://www.rcgroups.com/forums/showp...32&postcount=2

With this set up I went out to over 5.7 miles.
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Old Dec 28, 2010, 10:57 AM
Who done it?
rawlmark's Avatar
Erie, CO
Joined Oct 2010
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Crist... Didn't you switch to UHF? What was the driving factor behind your decision to switch?
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Old Dec 28, 2010, 12:05 PM
First to go over 106K feet
Crist Rigotti's Avatar
United States, TX, Waxahachie
Joined Mar 2008
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Quote:
Originally Posted by rawlmark View Post
Crist... Didn't you switch to UHF? What was the driving factor behind your decision to switch?
I got a good deal on a DragonLink.
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Old Mar 30, 2011, 01:04 PM
vrfpvflyer
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United States, NV, Henderson
Joined Oct 2007
23 Posts
1 watt booster on Hitec and Futaba

Just FYI; I have been using the 1 watt booster on my futaba 6 ex 2.4 GHZ and and the Hitec Optic 6. The stock output on both radios is lower then the Spectrum DX7. I probably should use a 3 DB attenuator. However been flying without on Futaba and Hitec. DX7 however a 4 DB Attenuator is required. Is what Chris uses on his as he has stated. Without it the imput power will burn out the booster! ONE MORE THING IMPORTANT! ONCE INSTALLED, YOU MUST HAVE THE BOOSTER POWERED ON WITH RADIO!. I FORGOT TO PLUG IN THE BOOSTER AND STARTED TO FLY HIGH LUCKLY FOR ME. I WAS OUT ABOUT APPROX 500 FEET WHEN I WAS LOSING CONTROL. INTO FAILSAFE A SPOTTER PLUGGED IN THE BOOSTED AND GOODTO GO. RADIO IMPUT DRIVE SIGNAL IS SHIELDED INSIDE THE CASE!!
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Old Aug 23, 2013, 03:13 PM
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http://www.wheelchairdriver.com/12x.htm

You would do well to read this long page that I posted a couple of weeks ago.

It will help you calculate exactly which dB attenuator, if any, you need for your booster.
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