Originally Posted by
fizzy
I've decided to make the switch to the 4px from Ko ex1 kiy, I was wondering if anyone else had made the same switch and how they think the 4px is compared to the Ko propo also what is the smallest receiver available for the Futaba? I'm a bit concerned about the size difference between the Ko propo kr411/413 and the futaba receivers, the futaba rx seem to be a fair bit bigger from what I've found and are all the futaba rx's compatible with the 4px as it operates on fhss and fasst technologies? What seems to be the most popular all round receivers for these tx's? With Ko propo the decision was made for us as there were only 2 and both were really good but with futaba I'm confused as to all the different rx's and what the differences or advantages/disadvantages are thanks for any help and advice in advance
Both Ko propo and futaba utilize FHSS (frequency hopping spread spectrum) modulation, so your not going to see much, if any at all of difference in range or speed.
The FASST is a combination of FSSS (Horizon's Spektrum modulation) and FHSS (Futaba, Ko Propo, Airtronics modulation) if I understand the technology correctly, and that takes the best from both modulations and further enhances the bind and slightly smooths out the channel actuation for a more real time experience.
The problem with FASST is the expense to produce from what I understand and the benefits are negligible in the eye of the typical consumer, especially for ground vehicles.
With that being said, I own the included futaba R304SB Rx, and I don't see where anyone should have any worries about it being small enough to work in most anything past micros.
The size differences between the two listed are as follows>
Futaba R304SB (35.1 x 23.2 x 8.5mm)
KO Propo KR-413FH (28 x 18.3 x 18.5mm)
And a pic of both
