RunRyder RC
WATCH
 4 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 3675 views POST REPLY
HomeRC & PowerAircraftHelicopterRadio - Futaba FASST › I'm having to reluctantly change to JR after 20 years.
04-04-2009 03:05 AM  9 years agoPost 21
chopper_crazy

rrElite Veteran

Delphos, Ohio

My Posts: All  Forum  Topic

I love JR products. I have used them for many many years on both air and surface machines and have never once had a problem. Go JR and don't look back.

It's a complex, costly, glow powered anti-gravity machine!

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 03:57 AM  9 years agoPost 22
HeliFisher

rrVeteran

Verdi , Nevadafornia

My Posts: All  Forum  Topic

Subscribed!
This should be interesting.

The less a man makes a clarative statement, the less likely he is to look like a fool in retrospect.

PM  EMAIL  Attn:RR  Quote
04-04-2009 04:09 AM  9 years agoPost 23
ErichF

rrElite Veteran

Sutton, NH

My Posts: All  Forum  Topic

Just anecdotal, but we tried to use the JR/Spektrum 2.4 system on our autonomous Bergen Observer helicopter UAV, and it couldn't work well enough through all the RF noise elsewhere on the bird. This includes an 1800MHz 2W video transmitter and 900MHz 1W datalink. FASST is the only system that has worked on these helicopters to any useful range.

Erich

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 10:10 AM  9 years agoPost 24
Barney

rrKey Veteran

Inverness Scotland

My Posts: All  Forum  Topic

I'm not saying one is superior to the other as I had great reliability with both DSM2 and FASST.

I did have 1 static related crash on the SpeKtrum but that is a problem caused by the model itself. This was prior to the Quickconnect upgrade and after earthing the tail boom had no furter hits so as far as I am concernred both work.

Look forward to your testing bell.

Doug I just sandwich the aerials under a Align velcro strap so it is between the hooks/loops to isolate it from vibration leaving the last 2-2.5" exposed i.e not under the strap..

For tubes a bit of fuel tubing is ideal (no sharp edges) just drill a couple of small holes if necessary in the Radio tray, secure with a couple small cableties just enough to keep the tube in place without compressing the tubing so the aerial is not trapped.

That or pass the tubing under a mounting strap if thats an option. Remember the coaxial part is shielded anyway Its the last 2" thats the actual aerial.

There is abalance to be struck in an install.

I'm not one for having super tidy installs which often create problems. You often see wires that are pulled taught, wrapped tightly round components etc which is a No No. I like a bit of give to allow for flexing through the airframe and for when it does go in.

I'm not saying It should be flapping around either.

A bit of slack saves having plugs back out, wires being cut and isolates the cabling to a certain degree from vibes. Some people cant help but go completely overboard trying to tie it all down.

Brian

SPARTANRC Team pilot

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 11:53 AM  9 years agoPost 25
Bell Bloke

rrKey Veteran

UK

My Posts: All  Forum  Topic

All this is interesting stuff folks, keep em coming as it helps build a picture. I will test the gear today I hope, once it is installed. I have 2 identicle turbine Predators so this should be as fair as I can make it. I will do my version of an install first and if any of you are not happy with this or have any better suggestions I will adopt them and test accordingly. All tests will be done in 360degree orientations but at ground range, ie the model will be placed on a non conducting wooden frame 4 feet off the ground. Many thanks for your intrest.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 12:56 PM  9 years agoPost 26
MattJen

rrElite Veteran

UK

My Posts: All  Forum  Topic

Good luck Bell...

I will await your findings, i currently have an unused 9X2 with a 9 channel module fitted in.. but it will only fly in 1024 resolution, which is not critical for me as i am not stick banging with high fast digital servos..

I am in no mans land at the moment, as i want to stay Futaba as i am currently using a ff9 super, so hence the 10C, but it is only 8 x 2.4 channels as the others are on off channels.. and when you read the forums there is so much conflicting opinions it really makes the decision hard..

Someone said about using a module in the FF9, i would not use that, as you have to fly in PPM mode which means no setting up of failsafe and you loose 2 channels,, we need 9 channles on our turbines cos of Fadec and other leads...

I am still hankering after the 10C, as i dont fly out at a 1/4 mile like you do... i will watch this thread with interest.

. All tests will be done in 360degree orientations but at ground range,

i was told by a couple of radio geeks that testing at ground level will not give you the best results..

Matt

All The Best

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 01:47 PM  9 years agoPost 27
Bell Bloke

rrKey Veteran

UK

My Posts: All  Forum  Topic

Ah, but as long as you test both systems under the same conditions then that is a fair control. What a test like this won't allow for is reliability, only the passing of time will reveal that.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 08:30 PM  9 years agoPost 28
MattJen

rrElite Veteran

UK

My Posts: All  Forum  Topic

trouble is guys, you are comparing sets you use in the US which output double the power the Uk ones do...

So saying you dont have lock outs when you fly far away is null and void, as your output strength is double what we are allowed to use in the UK...

Bell flies over 1/2 a mile away from him much further than most would... i can understand the reasoning for sattelight, but i am slightly confused as the futaba 2.4 rx is no different than the size of rx you are currently flying on 35meg... which is more suseptable to RF...

I like the idea you can put longer aereals on the Futaba 2.4 rx, that means i have the same as i have on 35meg but with an extra aireal...

Please correct me if i am wrong...

I slanting towards to the either 10c or 12fg... it depends on how many missiles i sell this week.

Matt

All The Best

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 09:11 PM  9 years agoPost 29
Barney

rrKey Veteran

Inverness Scotland

My Posts: All  Forum  Topic

12Fg has virtually the same programing options as the 12Z/14MZ. It lacks a backlit display though. The timer is to quiet IMHO.

It has Quad brg Gimbals and you can alter stick tensions/change ratchet to smooth without opening the case up. 3 position switches that are mostly assignable.

In heli mode each flight position Normal/Idle 1/2 is equivelent of a completeley seperate model memory allowing total programing freedom meaning you can set multiple gain settings, multiople dual rates, expo setting etc Up to 3 per Condition on each function. There is also the option to Group functions so it passes fron Normal/Idle/1/2 without having different settings..CCPM mixing is to die for allowing you to dial out Interactions througout the Pitch Range. Lets just say it very very comprehensive. If you can think of it..it can do it

Futaba USA has a good function comparision chart between the Tx's.

Just need someone to chime in on what the 10C does..

cheers Brian

SPARTANRC Team pilot

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 09:48 PM  9 years agoPost 30
MattJen

rrElite Veteran

UK

My Posts: All  Forum  Topic

Also, if you need to run the aerials (like one inside and one outsite the fuse) then you can buy the FASST extension (400mm) aerials. You can change both or just one, 5 minute job.

Does the lengthing of aerial change the output or affect it, as i thought all rx are tuned by the Aereal length... which is critical

I cannot seem to find anywhere in the Uk that does these 400mm aerials...

Some please help

Matt

All The Best

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 10:52 PM  9 years agoPost 31
Barney

rrKey Veteran

Inverness Scotland

My Posts: All  Forum  Topic

Mattjen.

The FASST aerial is just coaxial cable. i.e. Its constructed just like normal TV Coax cable. i.e. Has outer shielding layer with a center core.

The FASST Aerial. The thicker part of the aerial is shielded to prevent radio reception. (grey part)

The exposed part at the end (the silver coloured part) is actually the centre core and is the actual aerial. Its this last part thats important.

Our friends in Germany have been using longer cables for f5b etc for quite some time. If Ripmax cant supply (now theres a surprise..LOL) It can be sourced via E-Bay or specialist radio communication shops. It's called Micro Coaxial cable normally.

I had a probem sourcing a cable from the Uk and bought a replacement Tx Aerial (I think it was a SpeKtrum TX one) I then just cut it to length and then exposed the core as per the originial FAAST aerial.

SPARTANRC Team pilot

PM  EMAIL  GALLERY  Attn:RR  Quote
04-04-2009 11:33 PM  9 years agoPost 32
Four Stroker

rrElite Veteran

Atlanta

My Posts: All  Forum  Topic

You can make your own. Be sure the exposed end is identical to the Futaba:

http://parts.digikey.com/1/parts/26...8n1-a-1000.html

http://www.digikey.com/scripts/DkSe...l?name=H9159-ND

About half the Futaba price. Don't knick the inner core when removing the outer shield.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 12:19 AM  9 years agoPost 33
ErichF

rrElite Veteran

Sutton, NH

My Posts: All  Forum  Topic

Matt,

You are right, however, both JR/Spektrum and FASST are equally constrained in power output over there. So, it all remains relative. I think the debate is which is the better (or more reliable) RF Scheme in each situation, RF output being equal.

Erich

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 12:25 AM  9 years agoPost 34
DougV

rrVeteran

Miramar, Florida - USA (Ft. Lauderdale)

My Posts: All  Forum  Topic

Matt,

Here is the Futaba part number for the 400mm antennas, HSP79766 ANT 400MM $12.13.

I haven't had the need for the long antannas since I don't have range issues on jets or helis. However, I have seen them installed in carbon fiber frames (Gliders)

Some German guys have done some FASST range checks, still good at 2.36 miles, I think is 3800 meters.
http://www.mfv-marbach.ch/index.php...2fg-24ghz-fasst

Doug.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 09:35 AM  9 years agoPost 35
MattJen

rrElite Veteran

UK

My Posts: All  Forum  Topic

Doug/Eric

Many thanks for the info, that is what this site is all about,
really apprecite the info...

I am sure bell will also post today how he is doing.. he was having fun yesterday

Matt

All The Best

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 09:48 AM  9 years agoPost 36
nivlek

rrProfessor

Norfolk England

My Posts: All  Forum  Topic

Someone said about using a module in the FF9, i would not use that, as you have to fly in PPM mode which means no setting up of failsafe
You store the failsafe positions when you bind the Spektrum receiver to the transmitter . So that's the reason out of the way .

At the end of the day , it gets dark .

PM  EMAIL  Attn:RR  Quote
04-05-2009 09:50 AM  9 years agoPost 37
modtron

rrKey Veteran

Oxford. UK

My Posts: All  Forum  Topic

Matt,

The 400mm extended aerials are available in the UK and can be sourced from Robbe Uk.

modtron
oxford UK

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
04-05-2009 11:17 AM  9 years agoPost 38
UK Helinut

rrApprentice

Gloucestershire

My Posts: All  Forum  Topic

You are right, however, both JR/Spektrum and FASST are equally constrained in power output over there. So, it all remains relative
This statement is incorrect. The Futaba systems are unaffected by the Ofcom requlations due to the nature of the frequency hopping time, therefore we have the same power output in the UK as the US.

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 11:55 AM  9 years agoPost 39
DS 8717

rrProfessor

Here wishing i was somewhere else

My Posts: All  Forum  Topic

This statement is incorrect. The Futaba systems are unaffected by the Ofcom requlations due to the nature of the frequency hopping time
This statement is incorrect,the correct termanology is channel shifting not channel hopping it doesnt qualify to be calssified as channel hopping by the FCC.

YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED

PM  EMAIL  GALLERY  Attn:RR  Quote
04-05-2009 02:55 PM  9 years agoPost 40
ErichF

rrElite Veteran

Sutton, NH

My Posts: All  Forum  Topic

I stand incorrectly corrected

Erich

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 4 pages [ <<    <     1     ( 2 )     3      4     NEXT    >> ] 3675 views POST REPLY
HomeRC & PowerAircraftHelicopterRadio - Futaba FASST › I'm having to reluctantly change to JR after 20 years.
 Print TOPIC  Make Suggestion 

 14  Topic Subscribe

Saturday, September 22 - 12:26 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

The RC discussion world needs to consolidate. RR is now one choice for that. Its software is cutting edge. It hosts on-topic advertising. Help RR increase traffic buy making suggestions, posting in RR's new areas (sites) and by spreading the word.

The RunRyder Difference

• Category system to allow Rep/Vendor postings.
• Classifieds with sold (hidden) category.
• Classifieds with separate view new.
• Answer PMs offsite via email reply.
• Member gallery photos with advanced scripting.
• Gallery photo viewer integrated into postings.
• Highly refined search with advanced back end.
• Hosts its own high end fast response servers.
• Hosts thousands of HD event coverage videos.
• Rewrote entire code base with latest technology.
• No off-topic (annoying) click bait advertising.
Login Here
 New Subscriptions 
 Buddies Online