MAJOR 2.4 Ghz Spread Spectrum Release! A FlyingGiants Exclusive!

[toprudder]

	Quote: Originally Posted by yoyosmuggler
	The long servo leads on a giant scale can act as a receiver. I have an i4c isolator in my 33% to prevent these gliches. Does the spektrum system eliminate the need for servo isolation?

Minor point, but it would be more accurate to say that the long leads act like antennas, not recievers.

[yoyosmuggler]

You are correct....I stand corrected. The guys that make the isolator can't be happy about the spektrum system I would guess.

[DKjens]

	Quote: Originally Posted by yoyosmuggler
	You are correct....I stand corrected. The guys that make the isolator can't be happy about the spektrum system I would guess.

I wouldn't just assume that the post with "Yes" in it was an answer to your question. Unless the Rx has some kind of optical or other separation between channels, like the PowerExpander and the like gadgets do, you can still have noise picked up by long servo leads transferred to other channels.

[fun_fly_3d]

	Quote: Originally Posted by DKjens
	I wouldn't just assume that the post with "Yes" in it was an answer to your question. Unless the Rx has some kind of optical or other separation between channels, like the PowerExpander and the like gadgets do, you can still have noise picked up by long servo leads transferred to other channels.

you don't happen to make isolators for a living do you?? .

brian

[toprudder]

	Quote: Originally Posted by DKjens
	I wouldn't just assume that the post with "Yes" in it was an answer to your question. Unless the Rx has some kind of optical or other separation between channels, like the PowerExpander and the like gadgets do, you can still have noise picked up by long servo leads transferred to other channels.

Yes, that is true, but the RF section of the Rx operates at 2.4 GHz, while most if not all of the noise that will be picked up by the long leads will be far below that frequency. Of course, I have seen really weird things happen before, so I am not going to say that opto isolators are not needed.

[wildnloose]

Its doubtful the harmonics produced by the interferring RF will be strong enough to cause any problems at 2.4g, but I, like toprudder, will not rule anything out...

[yoyosmuggler]

So with the spektrum system is the risk so small of getting interference from servo leads that it would be o.k. to run without an isolator? It would be one less failure point and less weight and money. I just want to keep my airplane as simple as possible but still keep it safe. I think Wayne Geffon runs without any kind of isolator in his 40%'ers without any trouble. (correct me if i'm wrong Wayne)

[Cracky]

	Quote: Originally Posted by yoyosmuggler
	I think Wayne Geffon runs without any kind of isolator in his 40%'ers without any trouble. (correct me if i'm wrong Wayne)

Many people don't use additional equipment. I think the only sort of extra equipment that Wayne has in his planes is a Electro Dynamics FO Kill Switch.

K.I.S.S.

[Bunky F. Knuckle]

Once my Spektrum system arrives, I still plan on using the i4c Isolator in my Carden. Ensures me still the peace of mind.

[Cracky]

	Quote: Originally Posted by Bunky F. Knuckle
	peace of mind.

thats the main thing

[toprudder]

	Quote: Originally Posted by Bunky F. Knuckle
	Once my Spektrum system arrives, I still plan on using the i4c Isolator in my Carden. Ensures me still the peace of mind.

Well, the isolators, besides keeping noise out of the receiver, can also boost the signal going to the servo. A good thing, regardless of whether you might have interference or not.

Bob R.

[airriley]

Was reading the manual for a futaba 9z ran across this, what do you guys think ?


Can I use an aftermarket transmitter module? Does this affect my warranty?
There are many aftermarket items that fit specific needs and are terrific products to use. However, the
use of a non-stock transmitter module in Futaba modular radios is not one of these circumstances. Based
upon FCC regulation 95.645(b), a modeler is in violation of the FCC regulations when using a non-Futaba
module in a Futaba transmitter. Therefore we cannot service a radio which is using any after-market
transmitter module, and its use voids the radio's warranty. Please also note that making modifications to
your radio system or using non-certified equipment may void any AMA insurance coverage.