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Old 03-18-2008, 01:25 AM   #1
carlangas
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Unhappy Futaba FASST Receiver Antenna Replacement/FIX

Hi guys, need your help.

I just made a mistake, I mean something stupid. I was making some arrangements to my Trex Wiring, so by mistake I CUT THE RECEIVER ANTENNA (2.4 FASST 7 CH). I know this is new stuff and I can not solder the traditional way because it is a tinny coaxial cable, I am trying to find some help but nothing.
I just want to know if there is a FIX or if there is available a replacement antenna and where can I buy it.

I googled it and I found some commercial micro coaxial cable and connectors, but I do not know the technical specs.

http://www.antenna-coaxial-cable.com...ial-cable.html

I will really appreciate your help.

Thanks

JC
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Last edited by carlangas; 03-18-2008 at 09:40 AM..
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Old 03-18-2008, 11:10 AM   #2
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idk about replacements or fixing it, but if you can get your one remaining antenna in a prominent location and then do a range check, you might still have signal reception. other then that, these rx's are around $100 each, as you likely well know.
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Old 03-18-2008, 11:36 AM   #3
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Futaba Service Center
3002 N. Apollo Drive, Suite #1
Champaign, IL 61822


Telephone: 1-217-398-0007. Available Monday-Friday, 8am-5pm U.S. Central Standard Time.

FAX: 1-217-398-7721. Please be sure to include a daytime telephone number or return fax number so that we can contact you.

Email: Email us at service@futaba-rc.com.


http://www.radiosouthrc.com/


Either one of the above should be able to answer your questions. Tony or Ben at Radio South are great people and provides lots of information.
David
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Old 03-18-2008, 11:40 AM   #4
carlangas
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Thanks for your replay Istandalone

What I like to avoid is to trash this receiver. They are quiet expensive. I can not believe that there is no replacement for it. SO I was researching about this type of antennas and I found some of them. Do you think that if I do something like a "micro soldering" can work?

I am feeling really bad because is a brand new Tx and Rx set. Oooohhhh gash !!!

I will do a Range check too as you told me.

Question: what does "idk" means?

Best

JC
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Old 03-18-2008, 11:48 AM   #5
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I would not fly the receiver with only one antenna. It has two antennas for a reason.
idk means ( I don't know)

The reason there is two antennas is so they can positioned to keep at least one antenna with a clear signal. The same reason the other brand uses the satelite receivers.

David
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Old 03-18-2008, 12:25 PM   #6
carlangas
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Thanks for your answer Dave

Best
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Old 03-18-2008, 12:50 PM   #7
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UPDATE: I just talk to Tony at Radio South and he told me they do not have any idea about this type of antenna because they have not worked with them yet.

Will try with Futaba guys

Oh boy, 100 bucks mistake !!!

More Ideas will be welcome

JC
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Old 03-18-2008, 01:13 PM   #8
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Quote:
I would not fly the receiver with only one antenna. It has two antennas for a reason
i said range check to see if the signal is getting through, not fly it lol. you might be surprised with perfect reception. if it was me, and i range checked with no issues, i might chance flying it. although you risk dumping a several hundred $ heli as opposed to one hundred dollar rx.
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Old 03-18-2008, 04:30 PM   #9
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Yes it might range check perfect with one antenna.
But the heli is sitting still and not being flown.
When the heli is flying the angle of reception is constantly changing. All it takes is for the heli to get in an attitude that blocks the signal. And then the receiver goes into Failsafe/Hold.

From what I have seen, 2,4 ghz is a little more line of sight reception than 72 mhz. Not saying that makes it a problem. But just when the receiver has two antennas. I would not attempt to fly the model with one antenna missing.

From the FASST website
Quote:
If the receiver notices a problem with the data coming into one antenna, it rapidly switches to the other, looking for the sharpest signal.
Would be hard for it to switch to the other antenna with one antenna missing. LOL

David
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Old 03-18-2008, 06:47 PM   #10
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Only one antenna means no diversity, I will not fly it like that.

Doug.
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Old 03-18-2008, 08:29 PM   #11
carlangas
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Finally I found two Futaba Service Centers here in Mexico where they have the original Futaba coaxial antennas. The cost for the repair will be around 25 usd. Not that bad considering this is not the US.

Thanks to everybody for your comments.

BTW, do somebody knows how to arrange those antennas in the Trex 450 SE V2?.

JC

Quote:
Originally Posted by dvelez3 View Post
Only one antenna means no diversity, I will not fly it like that.

Doug.
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Old 03-19-2008, 12:24 PM   #12
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Not bad for the cost of repair. That would be about the same cost here in the USA. There would be at least a 1/2 hour labor charge. So I would think $25 is reasonable.

David
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Old 05-16-2008, 06:32 PM   #13
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Update:

I finaly bought the replacemen two weeks ago. It cost me 10 usd here in Mexico, Not that bad considering it cost 8.50 in the US.

The antenna is Futaba original.

Best.

JC
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Old 05-18-2008, 02:53 PM   #14
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How bout you share the part number for everyone else???

The best thanks you can give is to "pay it forward".
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Old 06-02-2008, 05:44 PM   #15
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What is this.. Erich returned to the dark side??
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Old 06-02-2008, 06:07 PM   #16
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Oh Yeah....and it's much better over here now...

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Old 06-11-2008, 04:46 PM   #17
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I need to know where to go to replace them, too!! I emailed Futaba....waiting on a reply. I"ll post up if I find something....
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Old 06-12-2008, 11:44 AM   #18
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Carlangas,

Donde esta el Futaba service center en Mexico? Pasa el dato porfavor!!

Where is the Futaba service center in Mexico? Please, send the info!!

Gracias
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Old 06-13-2008, 08:48 AM   #19
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Here is a cut and paste from the e-mail I received yesterday from Futaba........

Thank you for your recent e-mail.

The labor rate is $30.00 an hour ($15.00 minimum) plus $16.40 in parts (antennas only) and $8.99 standard shipping. Once we receive it here it is usually back out the door in 3-5 days. That does depend on if any parts that are needed are in stock or on back order.

Sincerely,
John G.
Product Support Lead Technician
Futaba Programming Technician

Looks like it will end up costing almost as much as a new one to get the old one fixed........bummer.....
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Old 07-15-2008, 10:26 AM   #20
carlangas
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Default Futaba 2.4 Fast Antenna Part Number

Quote:
Originally Posted by ErichF View Post
How bout you share the part number for everyone else???

The best thanks you can give is to "pay it forward".
Hi everyone, sorry I was dissconected from this threat for a long time

This is the Futaba 2.4 antenna replacement Part Number

HSP79493

Hope it helps.

JC
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