Oh Yes One more important thing !!!.

I got to know that ASSAN 2.4 GHz Hack module and all other modules from Assan are DSSS and not FHSS like Futaba/Airtronics. So, they do operate in the GHz spectrum, they are not very effecient countering strong interference like Futaba and JR. Futaba uses DSSS + FHSS while JR uses DSSS with redundancy (backup channel)

Cheers!!!
Saurabh.

Here is an interesting link:
It shows the review of 2.4 Gh technologies used by Futaba, JR, Airtronics, ASSAN.

http://www.rcmodelreviews.com/spreadspectrum01.shtml

Saurabh

Quote from: saurabhhsrivastavaa on August 12, 2009, 12:59:16 PM
Oh Yes One more important thing !!!.

I got to know that ASSAN 2.4 GHz Hack module and all other modules from Assan are DSSS and not FHSS like Futaba/Airtronics. So, they do operate in the GHz spectrum, they are not very effecient countering strong interference like Futaba and JR. Futaba uses DSSS + FHSS while JR uses DSSS with redundancy (backup channel)

Cheers!!!
Saurabh.

Please look at page 2 of this url: http://www.rcmodelreviews.com/imax9x2.shtml, were rcmodel reviews talks of the newer version of Assan as follows:
Based on my own tests and observations, the system appears to be a non frequency-agile DSSS system, not dissimilar to the Assan system, another 2.4GHz product out of China, although Assan have upgraded their system to use two separate parts of the band now.

This means they are frequency agile like the JR form of DSSS.

I also read elsewhere (rcgroups) that they have now 3 different redundant transmission frequencies simultaneously. Therefore they might atleast be as good as the JR. But this needs to be confirmed...

Saju

Hi Saju,

Thanks for the info.. Here is what I want you to see... this review was done recently with the Latest Assan V2 which is what we are getting now.. it still confirms that they are sticking ot only 2 channels int he GHz spectrum and not 3

Anyway, I am not contesting on which one is better but for most of the cases and casual flyers like us, Assan should do the job. The comparision is just to show that though Assan is very good, but there are still better tx's available than Assan. For the price, ASSAN rocks...

Cheers !!!

With the noise generator, Futaba is the best countering interference. Though Assan does a good job too, but it does not hop to other channels as confirmed in the video above.

Saurabh

If you are talking of price... why not buy the cheap Turborix or HK 2.4ghz transmitter and hack out the rf board and use it on your regular MHz good transmitter. For the price it is cheaper than Assan... Please see this thread:
http://www.rcgroups.com/forums/showthread.php?t=967207&page=58&highlight=FlySky+2+4+GHz+hack+idiots+guide


Yes this does not give you the stirling performance that a Sanwa 2.4gHz (the only reported system that has had no problems in the branded 2.4ghz systems) or JR or Futaba gives... But for the money and the type of crowding we can possibly have in an airfield, this may be the best bet yet!!


Saju

Guys  ,
I think Saurabh has already told that  Assan rocks as far as  Value for Money options is concerned  .

We are not here to discuss about the Merits and the demerits of  the best brands  around with or without other issues nither are we here to discuss about the cheapest options like buying a cheap 2.4 G radio taking out the module and junking the rest though this is surely possible.

I don't think that the option of buying a 2.4 G radio  and taking of the 2.4 G module and  hacking a branded tx is one which is a great idea despite being the cheapest because :
1) I would rather pay a few dollars more and use a ready made  proven  module to hack my transmitter
2) Buying a Tx to junk it is mentally not a great Idea
3) if for any reason both don't work I  then have 2 problems on my hand
4) Not everybody can disconnect a module from an existing Tx   cut it and  fit it onto another tx with confidence .

So despite your suggestion being possible which i am ready to try myself as I already have 2 such radio's that don't work due to soft ware issues  I don't think  I would do it for a starter . I would prefer to use proven options like Assan which apart from Airtronics is the only one that has not had major problems for whatever the reason.

It is been  agreed all over that Assan is a good balance between quality and price.

Saurabh  Futaba and Assan are in two different categories  so leave Futaba , JR , Air tronics to Anwar   and big wigs of the forum to.
Sai.

Price of the receiver X8R if i were to want one or two. Also prices of the Rx which are not full range.

Will revert soon.

sai

Quote from: rckatty on August 06, 2009, 09:43:21 PM
Also what 2.4Ghz technology is it using.

Assan uses DSSS technology it is not FHSS like Futaba.

Hi Guys !!!

I flew on Assan 2,4 Ghz module yesterday. It was just great. Did a range test on the ground with me in the car with the tx and a friend with the model on the ground. It worked flawlessly without any glitch for about 400mts (LOS). we did not go any further. having seen this I was confident that it would do wonders in the air. Without a hitch, i took off my Subaru from the ground. See the antenna position on my model (Pic below). I preferred the antenna to be pulled out of the model and perpendicular to each other.

It was too good. Never encountered any glitch or interference. My friends were flying Futaba 2.4 and there was no interference at all. 4 planes (3 on Futaba 2.4 and 1 Assan 2.4 ) were in the air at a time and no interference at all. The response of the model was instantaneous.

I would highly recommend the hack module from Assan. WORTH THE MONEY !!!

Cheers!!!
Saurabh.

Good to know that Assan worked well  all the best 

I specially like the speed of response on the aircraft  don't know how this parameter  compares with branded radio's

I guess you will be the best to judge this as you are also used to a FASST.

Sai technically 2.4ghz is always faster than mhz radios, as the data packets are carried differently. Therefore whether branded or not 2.4ghz radios are faster.

Basic Physics is understood higher frequency= speed , lower freq.= distance
I was asking Saurabh if there was an appreciable diff. between FASST and Assan as he uses both

sai

Sai you said that Assan does not use DSSS but saurabh said rightly it uses DSSS.

What ur take on it

Quote from: rcforall on August 18, 2009, 09:42:48 AM
Basic Physics is understood higher frequency= speed , lower freq.= distance
I was asking Saurabh if there was an appreciable diff. between FASST and Assan as he uses both

sai

Hi Guys!!!

To be real honest with you... i did not find any difference between the Futaba 2.4 and Assan 2.4. Both seemed equally responsive. The difference may be soooo small that it is of no significance. I flew on Assan and the very next flight i flew my friend's model on Futaba 2.4 Both seemed same responsive. infact my friend flew on Assan too and he could not make out any difference in the speed or response.

I believe the only difference is how both the systems encounter interference. To the Indian fields, and casual flyiers like us both are good. Assan no doubt is value for money with decent quality.

Cheers!!!
Saurabh

Assan  hack modules and receivers should be in by either this Saturday or Monday.
Those interested could mail or PM me .

Sai

I got the same thing done to my EXA Futaba. Works great. I now want to switch over completely to Assan 2.4.
I have used the 72 as well as 2.4. Range is fantastic.
I wholeheartedly endorse the product.
Avijit