Futaba Fasst vs Spektrum radio link

[exeter_acres]

	Quote: Originally Posted by wildhare
	To bind on a spektrum you only need to have signal and ground wires flowing to your charge jack so that the signal line can be tied to ground. This is true in every switch I have ever used, no need to use the original switch. TF

I don't use 2.4...yet....but from what your saying...if the switch only has positive and negative and no signal wire, then it will not work....

correct?

[wildhare]

	Quote: Originally Posted by exeter_acres
	I don't use 2.4...yet....but from what your saying...if the switch only has positive and negative and no signal wire, then it will not work.... correct?

That's correct as far as binding is concerned, you must have all 3 wires. 2 wires will work for power only. There is no need to have the other wires switched, most switches only switch the power leads and the others just pass through.

TF

[exeter_acres]

yep...I knew that about the switches... as that is the reason that many chargers can not charge dual batteries that are wired in to the same RX

it just seemed like what you were saying (I KNOW it isn't ) is that any switch will be fine....

but it seems like if you are using something like a Badger or Wolverine switch (which many people do) then it will not work...

Really I'm just asking as I do not use 2.4 so I am curious as I will be switching to it approx. 35 to 40 seconds after the module is released for my 14mz

[dick hanson]

Whoa!
the binding proces is really very straightforward -Irrespective of the switch ass'y used
- first
Read the manual -
then note that the power plug and bind switch must be in the BATT port

Simply put -- the bind plug shorts (connects) neg and signal pins
So if you have your own power harness - just put power harness temporarily into any other servo position and use the male bind plug in the power port .
On electric power models --- the power typically goes to the rx via the throttle port and the bind pin into the batt port . This is true when a ESC /bec powers the rx.

[somethnextra]

Yep there are plenty of ways to do it other than through the switch using the bind plug- as long as ground and signal are connected. I just think pushing a button to link up is easier. This is really kind of a moot point though since it only takes a minute or two to do it either way.

[dick hanson]

	Quote: Originally Posted by somethnextra
	Yep there are plenty of ways to do it other than through the switch using the bind plug- as long as ground and signal are connected. I just think pushing a button to link up is easier. This is really kind of a moot point though since it only takes a minute or two to do it either way.

I use a dedicated rx on each plane and have Model Match on my 93032.4
so rebinding is a very seldom done thing
again no big deal
but I LOVE Model Match

[d_wheel]

	Quote: Originally Posted by gareth.ky
	As far as I can tell the FASST system must have a max transmit power of 1/10th of 1 watt while the Spektrum can have a max power of 1 watt.

FCC rules state that you can have a maximum of 100mw AVERAGE. Makes no difference if it is FASST or Spektrum.

Later;

D.W.

[RTK]

	Quote: Originally Posted by hillmanr2
	Spektrum/JR uses 2 locked on channels while Futaba channel hops. I AM NOT INTERESTED IN THE RADIO DIFFERENCES ONLY THE WAY THEY USE 2.4 This is a fasst vs spektrum

The way I take it, (from the stand point of having interference) you are less likely to be shot down using a true frequency hoping protocol.

[as722]

We've been loosing models to batteries since rc was born and nothing will change that. I have been using a 2.4 module on my 10X for a few months now and nothing has changed other than not having to worry about someone turning on their radio on the same frequency. 2.4 is here to stay and will not change the fact that we must check our batteries with a quality volt meter before every flight.

ALbert

[wingster]

The way I understand it the 2.4 band does not have defined channels. This leads me to several questions. Are the Fasst and Spectrum channels the same? And if the Fasst system requires 16 open channels as stated in a previous posts, what are the ramifications at a major event when many systems are operating?

Thanks in advance

[RTK]

wingster, the way I read it is that the spectrum needs two open channels, the fasst hops every 2 milli seconds or so, but I would ass/u/me it could run on one (fasst). If interference becomes to great on both of the channels the spectrum is locked on that could cause a problem, where as the fasst will just keep moving thru it.
I have not read where the fasst needs 16 open channels. We had 3 fasst's and 1 spectrum all flying today at the same time without any problems. Yes the channels (frequencies) used by both are the same.

[wingster]

Thanks RTk. The 16 channels was reported back in post#21 as an FCC regulation.