Define "Better" in terms of car use?

That's what im trying to work out.

Thanks. So appears the "e" version is for electric only, slightly cheaper and a little heavier (0.4g!) - and has a built in aerial.

So if it's 30% faster (when using the 304) than a 4PKS-R with a FASST receiver, how much faster/slower is the X when using a FASST compared to FHSS I wonder???

T-FHSS in the 4PX is 30% faster than the FASST in the 4pksr
So you are going to get the best of both.

so..., from experience, how many of you can you tell the difference in latency between the FHSS on a 4PL and the FASST on the 4PK?

Where did you read this?

Why has FHSS now become faster than FASST?

I thought the FHSS technology wasn't as "good or fast" as FASST technology. Has futaba given up on FASST in favor of FHSS??

So Futaba has made their lower priced receivers better than their more expensive ones? They just shot themselves in. The foot and lowered profit margins by making their top of the line receivers worthless because they are slower than the budget FHSS ones? Doubtful


Here is what Futaba says about FHSS
http://www.futaba-rc.com/technology/fhss.html

Futaba introduced FHSS (Frequency Hopping Spread Spectrum) systems in 2010, to offer modelers a less expensive way to enjoy 2.4GHz dependability. Other advantages include extremely low latency, exceptionally fast frame rates, transmitters with no external antennas and low-cost receivers with Easy Link convenience.

As the name implies, the transmitter signal of an FHSS system literally hops from frequency to frequency in a pseudorandom sequence. The combination of frequency hopping with Futaba's advanced algorithms creates 100% frequency security.

Futaba FHSS and S-FHSS systems are also compatible with models that display the FTR (Futaba Transmitter-Ready) symbol. It means that the model's factory-installed receiver is FHSS-compatible and can be linked and used with an FHSS transmitter you already own.



Here is what they say about FASST
http://www.futaba-rc.com/technology/fasst.html

In our decades-long history, Futaba has brought many "firsts" to radio-control: Pulse-Code Modulation (PCM)...1024 and 2048 resolution...systems with 9 and 14 channels...transmitters with ultra-reliable dual internal processors. Now Futaba is the first of the traditional radio manufacturers to bring the advantages of 2.4GHz spread spectrum technology to modelers – and the first to introduce that technology in a full-range aircraft system. For getting the full benefits of 2.4GHz technology, you'll find that Futaba's experience makes all the difference. Ask competitors such as driver Taylor James, who has already racked up multiple wins with Futaba's 3PK 2.4GHz! Or award winning pilot Jason Shulman, who says "the fast response and glitch-free performance is unbelievable!"
Futaba takes great pride in making sure that every new product performs flawlessly before it's offered to our customers. Others hesitate to invest so much effort in testing. Some may even consider their "first run" products a step in the process of working out bugs, using feedback from the earliest buyers. Futaba is different. When you choose a Futaba 2.4GHz FASST radio system or module/receiver set, you've selected a fully tested, well-engineered, totally reliable product – one that's absolutely ready to give demanding R/C hobbyists the performance they expect. Our hands-on experience with 2.4GHz technology stretches back 15 years, long before anyone considered its value in hobby applications. That's when engineers in Futaba's industrial R/C division – designers of radio-control tools for construction, civil engineering, and similar uses – began employing and perfecting their own 2.4GHz equipment. Those same engineers were brought in to share their knowledge as soon as we were comfortable that 2.4GHz technology had perfected for the unique demands of R/C hobby applications. No other radio manufacturer had such an instant supply of expertise.

The advantages of Futaba 2.4 GHz FASST systems:

Other 2.4GHz systems hold firm to one or two frequencies, increasing the potential for interference. The frequency of Futaba 2.4GHz FASST shifts hundreds of times per second, so there are no signal conflicts or interruptions – and no need for a frequency pin!


Patent # 6,141,392

2.4GHz FASST scans incoming data and applies sophisticated error correction techniques – resulting in a system that gives you a solid, impenetrable connection with your model.


Futaba 2.4GHz FASST systems seamlessly select the best reception between two receiver antennas, so there's no loss of signal.

R603FF, R616FFM, and R6004FF receivers do not offer Dual Antenna Diversity.


Futaba 2.4GHz FASST system transmitters leave the factory with a unique and permanent ID code. Once linked to the receiver, the code ensures that the receiver will recognize and respond ONLY to that transmitter. The linking process is simple...just push a button on the receiver.

Custom-Developed IC Chips

Futaba uses custom IC chips that have been designed specifically for radio-control – ensuring quality, reliability, and safety. This is why Futaba FASST systems are faster and more reliable than the competition.

Compact, "All-in-One" Receivers

Futaba's small, powerful 2.4GHz FASST R617FS receiver for flight systems can control giant-scale models as easily as park flyers and weighs a scant 6.37 grams without case. Full-range systems from other manufacturers include a bigger, two-piece receiver, and you must purchase a smaller park flyer receiver separately.

Over 2x Less Minimum Latency

Latency is the elapsed time between your movement of the transmitter controls and servo response. In Futaba 2.4GHz FASST systems, that response can happen over twice as fast – so you feel less like you're "out in front" leading your model, and more like you're inside driving or flying it.

Comparing the 6EX FASST system to the DX7.

100x Faster Antenna Switching

If the receiver notices a problem with the data coming into one antenna, it rapidly switches to the other, looking for the sharpest signal.

Comparing the R617FS receiver to the AR6000 receiver.

Stronger, More Robust Link

Futaba doesn't need redundant receivers. Instead, we use a combination of Channel Shifting and Dual Antenna Diversity (DAD) to provide a robust, highly dependable link between transmitter and receiver.

Hassle-Free Fail Safe

Futaba 2.4GHz's Fail Safe is programmed right through the transmitter just like PCM1024, PCM-G3, just like on conventional systems. The competitor's radios require a complicated six-step process to set up their Fail Safe, along with a separate binding plug that can easily be misplaced.

It's noticable when I borrow my buddies 4pl with FHSS compared to my FASST and 4pkrs

It is in the futaba press release:

"The response of T-FHSS system in 4PX is optimized and 30% faster than 4PKSR."

the 4PKSR only supports FASST thus the new T-FHSS IS 30% faster than FASST in the 4PKSR

don't use old radios as a test, wait and see how fast the 4px is.....

I got a feeling there will be a 4PKX radio that uses FASST released at a later date that will trump the FHSS 4PX radio.

They are updating the FHSS system with the PX and I believe they will update the FASST radio later.

probably, always a newer better

the 4PX DOES support FASST as well as FHSS

Most likely a new FASST Rx with "faster" response times.
There is no purpose in having multiple high-end models, so the 4PK line will move over to the 4PX. Just makes sense.
But seriously, at what point does the human reflex not be able to tell the difference, as it gets closer to 0ms?

Anyone please ?





Link
http://www.futaba-rc.com/systems/fut...4px/index.html

1st paragraph - 2nd sentence.

It's saying the radio is faster. It doesn't say FHSS is 30% faster. If I'm reading that correctly it would mean the radio is faster so running FHSS is faster and FASST will be faster as well. The FHSS and FASST technology isn't changing, just the radio speed.


Soooo, maybe it means this is the flagship model and more budget ones will come later......4PLX

Well whatever happens I'll buy the PX.

Yup

But my question still remains. If it is 30% faster for new PX paired with FHSS compared to PK-R & FASST, what is the new PX like when paired with FASST? Still 30% or is it more? Is it less for some reason as it is optimised for FHSS?

All you guys are doing is guessing.....here's an idea. Email the makers of this product and ask them. They might even have an answer for you.
[email protected]