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HomeAircraftHelicopterAerial Photography and Video › 2.4Ghz video sistem with Fasst system
03-03-2008 02:53 PM  10 years agoPost 1
Rui_JC

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Portugal

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Hi all,

I have one of those camera and transmiter pack transmiting on 2.4Ghz.

All worked well when using PPM system.

Now i have the futaba's FASST system and i'm wondering if i can use my camera again in my heli since now it's working with 2,4Ghz receiver.

Will the video transmiter cause any issue with my futaba's receiver while flying ?

Thanks

Keep it up...literally

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03-03-2008 03:13 PM  10 years agoPost 2
vrwired

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Boulder County, CO

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Sorry to say.. it is n0t recommended.. this doesn't mean you couldn't get away with it, but your range will be hampered. The video signal will swamp the other signal..

If you do decide to even try, Turn on the Vid transmitter first.... then the Transmitter/rx... that way the transmitter can find an open channel...

Still remember.. not recommended.. I would change vid frequencies.. I am sure you could get rid of your 2.4 vid tx easily..

JR GSR260 - Mark IV Cam Mount
Trex 600NSP
Trex 600 to 700 Stretch
Trex 450SE
Hornet X3D

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03-03-2008 09:39 PM  10 years agoPost 3
W4UAV

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Gainesville, FL

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f you do decide to even try, Turn on the Vid transmitter first.... then the Transmitter/rx... that way the transmitter can find an open channel...
Doesnt matter.. youre going to experience Front-end Overload, the FASST receiver will be constantly bombarded with RF less than 6 inches to a foot away and you are trying to send it controls at a half to a mile away. Its like someone yelling in your ear and your trying to listen to someone a mile away telling you how to fly.

Recommendation: use a completely separate band for video.

Mike

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03-03-2008 11:39 PM  10 years agoPost 4
rroback

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Irvine (UCI), Ca

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I use faast for the heli, and 900mhz for downlink.

Rhett..... I can't fly, but the Profi sure can.

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03-04-2008 07:01 PM  10 years agoPost 5
wlfk

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uk

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FAAST doesn't work like spectrum - it doesn't need to find an open channel.

Range is OK - with a 10mW video transmitter, the problem is more that the radio system interferes with the video, not the other way round.

K

A bit like a kite, but 500 times more expensive

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03-04-2008 07:51 PM  10 years agoPost 6
BigguyOz

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Forster, New South Wales, Australia

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So you are the first person on any forum to be able to use 2.4Ghz for both radio control and downlink without any problems?

Tony Stott

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03-04-2008 07:58 PM  10 years agoPost 7
W4UAV

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Gainesville, FL

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Front end overload is what it is, it doesnt matter if FASST works or doesnt work like Spektrum, its RF.
If it works for you, great. I cant see how youre getting any range from a 10mw transmitter.

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03-05-2008 12:19 AM  10 years agoPost 8
Autoeject

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Ashtabula, OH, USA

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Yes, if you keep the downlink tx at low enough mW, you could get away with it. At 100mw or more, you'll likely see degradation in range on your heli system. If you decide to give it a go, be sure you range check the heli tx very well.

I found I dropped to less than 50' on my range check when trying it out w/2.4 downlink. 900mhz works just fine as long as you separate the two systems on your heli. Even those two near each other would cause the front end overload as previously described.

Mark Webber
wai-rc.com
Spartan RC Distributor
Outrage Helicopters

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03-05-2008 12:42 AM  10 years agoPost 9
46Taylorcraft

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AZ

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boy... I sure do like my time tested & proven 72mhz radios on my AP machines!

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03-05-2008 02:26 AM  10 years agoPost 10
rroback

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Irvine (UCI), Ca

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Until someone turns on the same channel as you. 72 mhz has advantages, and disadvantages, but I like my current faast/900mhz setup.

Rhett..... I can't fly, but the Profi sure can.

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03-05-2008 10:13 PM  10 years agoPost 11
wlfk

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uk

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So you are the first person on any forum to be able to use 2.4Ghz for both radio control and downlink without any problems?
Was that directed at me?

I did have a lockout, but only after I turned down my transmitter power from 100mW to 10mW. I was hovering my 450 about as far away from me as I'm normally comfortable to fly it, and the vertical antenna was shielded by the c/f frames (the horizontal antenna is on the left). My transmitter antenna is vertical. I'd flown it a fair amount with the transmitter on full power without any problems,

The real problem was that the video downlink was always unusable.

Someone on trextuning professed to having used a spektrum system with good results, by turning on the video TX before the r/c system.

K

A bit like a kite, but 500 times more expensive

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03-06-2008 12:07 AM  10 years agoPost 12
HHawk

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Gardnerville Nv.

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What type of 900MHz downlinks work the best? And where can one find one that has not been discontinued? Please email me at hawkmon@charter.net

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03-06-2008 02:29 AM  10 years agoPost 13
snurre

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Sweden, Stockholm

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You might also want to consider using 5.8GHz for the downlink.
I am going for this, together with a Spectrum control link.
Though I still have not tried it airborne since it still in the paper box.

Here is a link to the vendor I bought my downlink from

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03-06-2008 05:58 AM  10 years agoPost 14
HHawk

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Gardnerville Nv.

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I saw some 5.8 GHz downlinks earlier today and the price is way out of my range at $800.00

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03-06-2008 07:23 AM  10 years agoPost 15
BigguyOz

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Forster, New South Wales, Australia

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K, I was indeed referring to you. You and one person in UK is too small a sample to give any comfort to the idea of using 2.4Ghz for both control and downlink, given the huge number of posts from people who have experienced problems. That is why I would always caution anyone from trying it..

Tony Stott

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03-06-2008 11:10 PM  10 years agoPost 16
wlfk

rrVeteran

uk

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You and one person in UK is too small a sample to give any comfort to the idea of using 2.4Ghz for both control and downlink
I would agree, though I haven't seen many - if any - reports of people having trouble with the FAAST system and video - lots of reports of people having trouble with Spektrum systems and video. Remember that they are both very different technologies.

The FAAST website says that you can probably use faast systems with 2.4ghz downlinks.

http://2.4gigahertz.com/faq/faq-fasst-q891.html
I will be installing a 2.4GHz audio/video transmitter 200mw with a camera on my plane. Do you believe the radio will experience interference?

While we have not tested this particular application, the likelihood of experiencing any intereference is very minor.
K

A bit like a kite, but 500 times more expensive

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03-07-2008 03:01 AM  10 years agoPost 17
nocontrol1

rrApprentice

Melbourne, FL, USA

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I have sucessfully used a 2.4ghz video trans with a Spectrum system, but only on a mast! The video reception gets trashed, and the Spectrum range deteriorated to around 300'. Definately NOT anything I would try on a airborne system!

Rob D.

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04-05-2008 03:34 AM  10 years agoPost 18
Janamon

rrNovice

Hibiscus Coast New Zealand

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Hi we tried it today. Brand new futaba 8 channel fasst system and a blackwidow AV 1000mw transmitter. We turned on the camera and its radio gear and the turned on the helicopter radio. Picture was perfect so... we decided to do a range check before we went flying. About 30 feet away
with the range check button pushed in we got glitches and about 50 feet away we had no response at all at the chopper. We have decided not to use this system and are now on the hunt for a 5.8 or a alternative video sender. There must be some brainy person out there who can develop a cost effective and reliable unit. The search continues. hawkeyecam@gmail.com New Zealand

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04-05-2008 10:04 AM  10 years agoPost 19
Autoeject

rrKey Veteran

Ashtabula, OH, USA

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Depending on your local regulation, 900mhz works with 2.4tx's. And you'll get better reception for a given output rating.

Mark Webber
wai-rc.com
Spartan RC Distributor
Outrage Helicopters

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