Are you still skeptical about 2.4Ghz radio systems ?

Started by anwar, March 18, 2009, 02:36:39 AM

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FlyJoe

Does that mean I could use this with my DX7? since i read that I can use only DSM2 receivers.
Its better to Crash while Learning on a sim rather than Learn from Crashing on the field

anwar

From what I understand, you have to use a Corona 2.4 TX module to use a Corona 2.4 Receiver.  So it would not work with Spektrum/JR or Futaba or Airtronics 2.4Ghz transmitters (or transmitter modules).
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anwar

Make that 5  :'(

Fridays are holidays in Qatar, and it is the primary day we fly here.  And someone started their new plane, without checking their frequency with others first, and he crashed.  Luckily the guy was has been flying from before felt only some glitches, but was able to land safely.

Obvisouly, no one wants this to happen, but we are human.  And being able to forget is a one of the best gifts we have (how else would one cope with the loss of their dearest and nearest relatives, except their memory slowly fades away as time passes ?), but the side-effects include periodic loss of RC aircraft !

Yet another reason for 2.4..... everyone there was saying.
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Agni

i am using futaba 2.4ghz system onli...... i didnt find any problem in that...... but the receiver is very precise and very costly..... so we need to take more care.....

anwar

Here is a video of Donatas Pauzuolis flying a 100cc Yak 54 plane using a Futaba 12FG. 



Just more proof that 2.4Ghz can be trusted with even the biggest models, and has become the mainstream technology when it comes to radio gear.  Hopefully this will also result in opportunities for beginners on a budget, as the seasoned folks move to 2.4, and start to sell their PCM/PPM radios for cheap  ;) 
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saurabhhsrivastavaa

Cheers !!!
Saurabh
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atul_pg

Hi Guys,

I have an old Futaba T6X 'Ripmax 50th Limited Edition' 35MHz .. My quetion is can i fit a 2.4ghz module in this radio ?

If someone can answer this for me would be great..

pic enclosed..

cheers

atul g.

anwar

You should be able to do the Assan hack easily.

Sai ?
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atul_pg

#33
The Manual says -

Modulation : FM/PPM OR PCM, Switchable..

;D I think i can convert this  {:)} Superb stuff..

Man this radio is old but the technology with futaba at tat time was also superb..

Cheers to 2.4ghz & Futaba.. 8)

rcforall

I think a lot has been written and said about the Assan Hack option  so no need to keep on repeating the same thing.

Saju did the conversion himself and is also planning to get the LED of his Assan Hack out so  conversion is not a big deal really.

Sai
www.zuppa.io : vehicle telematics, ADAS, IoT , Drones

anwar

#35
The point was not about the quality of Assan hack etc. We all know it is inferior to Futaba ;D

The question is, is there anything that prevents use of the Assan hack on this particular radio ? I can't see any, and you seem to say the same thing.

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rcforall

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saurabhhsrivastavaa

Quote from: anwar on September 08, 2009, 10:21:00 PM
The point was not about the quality of Assan hack etc. We all know it is inferior to Futaba ;D

The question is, is there anything that prevents use of the Assan hack on this particular radio ? I can't see any, and you seem to say the same thing.



Hi Anwar,

I beg to differ... Quality is a relative term, and I would not say that Assan is of inferior quality to Futaba. Its just that both are using different technology on the same platform. They both transmit on the 2.4Ghz platform (spectrum) the difference is only the encoding part and the number of channels they utilize. Quality of Assan is not inferior, the only difference being it does not hop frequency, so it is more prone to interference COMPARED to Futaba. However, for the price and convenience, Assan is not a bad deal :)

Both have almost the same range and response time (unless you are a sport pilot for whom microseconds make a difference.)

Both are compatible with eahother and can be operated simultaneously.

Hope I made my point :)

Cheers !!!
Saurabh
Cheers !!!
Saurabh
+91 7977382130

anwar

Saurabh -

Looks like you have not been around this forum long enough to see what is going on ;D  Did you know that I will defend Futaba at ANY cost, ONLY because my eldest daughter is going to get married to the son of the owner of Futaba corporation ?  8-)
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saurabhhsrivastavaa

Hi Anwar,

Nice to know that...

I am a Futaba fan too... no doubt Futaba is the best... but this does not mean that others are inferior... Most of the videos if you see on youtube, people would be flying JR... This does not mean that JR is better than Futaba... Both use different technology and coding in the 2.4 spectrum. So, I believe it is unfair to say that one brand is better quality or superior to the other brand... 8-)

Cheers!!!
Cheers !!!
Saurabh
+91 7977382130

anwar

#40
Saurabh - I don't think you still got the point  :P The point is that we take this light heartedly !  In short, "I was just kidding" (as indicated by this =>  ;D )

BTW, if there is "no doubt Futaba is the best" as suggested by you (which is not something I necessarily agree with in all cases),  then by definition (or by the rules of English language), that makes everything else "inferior" to it, right ?   8-) ;D 

Also, radios come and go.  They are just a "means to an end".  As long as they are fairly reliable (i.e. doesn't give you second thoughts every time you come out to fly), pretty much any brand will work.  Cost, accessibility/availability, a fair amount of reliability etc etc are much more important issues, than being "perfect". I only jump into these discussions when someone tries to highlight random events and then generalize that, resulting in the scaring of others away from using those brands/technologies.  Of course anyone can highlight advantages and disadvantages of any particular brand or technology. If someone said "72 is prone to frequency clashes", that is just the truth, that is not scaring people without reason. If the reader is intelligent, they can always say "but I always fly alone so this is not a big issue for me".  But what I generally see is people take one or two random crashes and go after 2.4, while a huge part of the entire RC community is flying on 2.4 without any issues.

I don't know if anything is "bullet-proof", let alone "idiot-proof" !
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saurabhhsrivastavaa

thanks Anwar  :D

I agree with you  8)

btw I seriously am a die hard fan of Futaba.. no second thoughts... just wanted to try the Assan hack so went for it... :) i had read quite nice reviews about it.

Cheers !!!
Cheers !!!
Saurabh
+91 7977382130

mpsaju

Anwar

You have got me biting now... Too juicy not to!!!
Quote from: anwar on September 09, 2009, 02:35:46 PM
But what I generally see is people take one or two random crashes and go after 2.4, while a huge part of the entire RC community is flying on 2.4 without any issues.

I don't know if anything is "bullet-proof", let alone "idiot-proof" !

Well, 2.4ghz FASST systems from Futaba... your brand of tx and rx systems... has had a well documented problem with temperature build-up inside the rx.... Deadly when you enclose the rx in foam, in warm climes, in an unventilated area of the model... remember.... Diehard fans that we all are of Futaba (when is the great wedding by the way ?).. me included (I have just bought a 6exap 40 mhz and Assan hacked with a switch as vouched for by Sai). Safer to avoid known issues and bide by warnings... dont you think?

One thing quite noticeable about the hack was the speed of response of the model... Dont know whether this is true for the FASST system
Happy Flying


Saju

anwar

#43
I think we had this discussion like 5 times now.  Boring as it is, the heat issue does not happen in any kind of routine usage (again, speaking from hot.. baking.. Qatar!).  If you follow proper setup, this issue is the  last thing to worry about.

BTW, show me references of a bunch of people running their 30% and turbine planes on Assan 2.4, and see if you can entice me ;D 

Lot of people must be brain dead, running their costly stuff on Futaba 2.4 in summer (in hot places), while well known alternatives "without any issues" exist (forget newbies like Assan for now !).  I rest my case :P
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mpsaju

Happy Flying


Saju

anwar

#45
Quote from: mpsaju on September 09, 2009, 11:17:15 PM

http://www.rcgroups.com/forums/showpost.php?p=12789982&postcount=3893

See I walked you right into my trap ;D

Read the whole thread for the above post...

http://www.rcgroups.com/forums/showthread.php?p=12789982#post12789982

It mentions a few juicy details like "CDI issue" with Assan.



Now I don't know if someone has done a similar test on Futaba, but I am sticking with  Futaba for now !  The thread does mention that the "sensitivity of Assan is higher than Futaba, Spektrum etc, and that is why it is affected".

Did I say I have NOT found nirvana in radio land yet ?!?!?

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anwar

Quote from: anwar on September 09, 2009, 10:57:54 PM
Lot of people must be brain dead, running their costly stuff on Futaba 2.4 in summer (in hot places), while well known alternatives "without any issues" exist (forget newbies like Assan for now !).  I rest my case :P

And I love the way you conveniently ignored this ;D  8-)
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anwar

#47
What a can of worms did you just open ?!?!?   :o   :D

http://www.rcgroups.com/forums/showpost.php?p=12782239&postcount=3886

http://www.rcgroups.com/forums/showpost.php?p=12794556&postcount=3898


BTW, for others watching this.....  these are issues a regular flyer would probably never see, so there is nothing wrong with Assan that we are sure of (for normal usage).

I am just preparing for law school with Saju's help !

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anwar

Paging Mr. Saju... Please report to this thread immediately  ;D

If you do not respond within 24 hours, Team Futaba will be given a walk-over and declared champions forever !  :P  :P
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rcforall

Some fun to keep the match going till Saju gets back ( Night watch man duty ) 8-)

I'm using ASSAN from almost two years ago and had no problem until yesterday in the field... This is my setup:

* TX X8F V2
* RX X8R ( this one ¿V1 o V2?)
* RCEXL CDI with SPE 40cc engine and NGK spark plug and NGK cap.
* Mini servo Hitec behind firewall near to CDI.
* Used ferrites near receiver in all servo cables.

I thought Chan had a problem with FASST within 1 month  ;) ;D

Sai
www.zuppa.io : vehicle telematics, ADAS, IoT , Drones