Moerig

Hi,
Considering using this for my old 9ch JR 35MHz. Any good?
http://www.sloughrc.com/default.asp?...emid=P-RM12-MX
MM

dubd

Here's some info for you:
http://www.rcgroups.com/forums/showthread.php?t=1131698

Moerig

Thanx,
Interestingly the Hobbico (US?) version is discontinued.

Roger M

I've been using one in my MX22 for 2 years without any issues at all and all my jets are using FASST Rx's. It gives you the best of both worlds, in that you keep the JR programming and have a solid 2.4GHz link.

Roger

Ruizmilton

My Feedback: (29)

Been using the Ripmax module (same as Hobbico) for about 9 months with zero issues, good solid link, no need to mess with antennas and satelite receivers.

Rider-60

My Feedback: (17)

Will the S-bus receivers work with the Rasst modules?

BaldEagel

If the RASST modules link with the Futaba FASST Rx's there is no reason why not, the S-Bus is just another FASST Rx.

Mike

c/f

My Feedback: (1)

Post #4 at RCG is mine and still the Robbe FASST module in a JR 9303 is rock solid.

Last season I flew a 50CC bipe converted to electric 4500W and bought a FASST 14 chnl RX and an Orbit powerjack in the front end, this has been awesome with long leads and 7 servos @ 200oz each using LIFE 2s no regs. NOT a single hiccup with FASST JR

http://www.hobbydirekt.de/product_in...ucts_id=158453

IMHO till all this 2.4g sorts itself out the legacy module based JR TX second hand are the best bang for the buck as people unload them for dedicated 2.4g tx. I picked up a 9303 with a Spektrum module for $125.

I'm even thinking the Hitec 2.4g module and 2 6 chnl full range rX for a MAP of $159 would be worth a try, You get telemetry downloadable via laptop but the airborne low battery voltage of the telemtry is said to be an audible alarm within the module itself.

http://www.rcgroups.com/forums/showp...6&postcount=55

I personally am not ready to change over a turbine until I figure out how it is with a jet with large amounts of stainless, carbon and composites, fuel cells ect are exempt from signal blocking, if its a non issue why ever mention it in the first place, why go to extremes with multi point satelites ect? I know its done just freaks me out @ 199.99mph

Ruizmilton

My Feedback: (29)

c/f:

The FASST module I have been using on my XP9303 has been strictly on turbine jets since I would not even consider a Spektrum RF link on them.

ajp

My Feedback: (4)

Hitec will soon release a module for JR transmitters

http://www.hitecrcd.com/products/new...pectra24j.html

Ruizmilton

My Feedback: (29)

I wanted the Spectra module also because of the lower cost, design of the receivers, telemetry and my experience with Hitec, but so far I have read about too many RF link issues (blackouts) for me to trust the system, so I opted for the Futaba module, and so far not a single issue and outstanding range even in fuselages with plenty of carbon fiber.

toto_sal

FASST... No need for satelites... Plain and simple. Rx may be more expensive but when considering the cost of a jet, this should be no issue. I have been using my fut 9c radio with module for the past 2 years and no issues what so ever. Just gave myself a treat and bought a fut 10c with 14 ch rx...

Moerig

Thanks, all the input is much appreciated. I think I will go ahead and order one. Does anyone know the maximum channels that can be extracted from PCM or is it PPM only?
MM

Roger M

MM

You have to set your Tx to PPM and depending upon the model you can get up to 12 channels (MX22), but I believe the JR 9xxx and 10x series only provide 9 channels in PPM mode. If you need more channels, then an MX22, MX24 or Futaba Tx will be necessary.

Roger

Moerig

Thanx Roger, I suspected as much. For My 9x I will have all channels then.

chrigui

i have mx-22 IN PPM24 and spektrum 12ch tx module

all 12 ch in mx22 are available for ar12000

BaldEagel

Before you buy have a look at the Futaba FG8 FASST it is now capable of operating on 14 channels with the software update, thats 12 proportional and two switched.

Mike

GrayUK

Yes BaldEagle.
Great update, a few of our club members who fly with the 8 are well pleased.
Paul

chrigui

my friend use in the same mx-22 ROBBE-FUTABA 2,4GHZ module without problem

Countryboy

My Feedback: (25)

Is there a USA based supplier for the Robbe JR Fasst module?

Ruizmilton

My Feedback: (29)

are you looking for the plug-in module or the the one you wire up internally? I did some reserach before I bought mine and seems no one in the US carries them.

proline8000

My Feedback: (12)

You can purchase this module from Tower under the ACE R/C name for 79.95

Ruizmilton

My Feedback: (29)

FYI.. the ACE module is for their own receivers, not FASST, and will only encode 6 channels...

ozzieflyer

Found you can still get the Robbe Module,
But I have a question.
If I go for the R617 receiver,

See the info on the Failsafe,
this is an extarct from the manual for the FASST module for the JR, from the Robbe site.

Here's some of the info
The fail-safe function is permanently pre-set to Channel 3 (throttle) on
the R 607 FS and R617 FS receivers. Due to differences in servo
assignment sequences between Graupner equipment (throttle channel
1) and robbe/Futaba systems (throttle channel 3), channels 1 and 3 are
interchanged in the software of the HFM 12MX module. As a result it is
necessary to swap over the servo outputs 1 and 3 at the receiver (see
table below).

Since the receiver output assignment of Graupner modules is different
from that of robbe (Futaba) modules, the output assignment must be altered
at the receiver in accordance with the following table

Acro
Channel Graupner Rasst
1 Throttle Aileron
2 Aileron Elevator
3 Elevator Throttle
4 Rudder Rudder

SO
Does this mean the Throttle changes channel BECAUSE of the FASST module?
If so, all will be good, but if not, how do I swap the channel in the JR10x, so that the failsafe makes sense, and works on the Throttle?
As I understand, if i was using a R6208SB, the failsafe works for all channels. But teh R617 is at a good pricebreak, and I have quite a few models that will need a new FASST Rx, but only use 4-5 channels, so if I can work out the failsafe, it will be full steam ahead.

Countryboy

My Feedback: (25)

The change is strictly module based...nothing changes in the radio. Set failsafes as you would normally. Just received my Robbe Fasst module a couple weeks ago for my JR and I like it. The binding process is so easy and the link on power-up is almost instant. I'm using the Futaba R6014HS receiver, but it should not be any different than your R617.