2.4 Ghz Radios

[Dan Williams]

I have 2 of these 2.4GHZ radios but both don't seam to work in my tanks ? and I don't know why? I do a test
but found out the servos are for the FM radio that I sold with the German half track.
That was the only radio that worked good for me.
I also have a computer, 86 f radio that only 2 channels work in the pz3,
the left stick, but in rev.{forward & back} and the right stick but only side to side. all other channels don't do any thing.
And I don't know why?
Does any one know what's going on with these radios ?
the radios are:
Airtronics VG6000 "sanwa advanced microcomputer radio control system." {band 75MHz, 86/75.910 boat & car}
2nd radio is Spektrum tm, DX6i 6ch 2.4 GHz DSM spectrum Technology
3rd radio is a Futaba 6ch 2.4 GHz
I was not able to get my tanks running last year and same goes for this year.
And I can't buy an old FM radio any more.
What should I do ?
Dan

[yves mouton]

Hello Dan,

I use for my tanks also 2.4Ghz and have no problems to control them.
I use a Graupner mx-16 that's a 8 channel transmitter,
it is also mutch safer than a fm channel transmitter.
best regards Yves

[Maarten Schutjes]

Most transmitters only work with receivers of the same brand. Altough it's all 2.4 ghz, most brands have their own way of making sure you can only use their transmitter with the brands receiver. I know of some generic receivers that work with a spektrum 6, but not with other spektrums...

[Dan Williams]

Tonight I retested 2 radios, with servos and a battery, and the Airtronices only 1 ch works as before.Left
stick = ch 2 or 3 ?
I tried an old FM 6ch radio 75f, that worked inside, with 2 servos working. But nothing happen when took
up to the tank.
The 3rd was my Futaba, 6ch 2.4GHz model T6EX the servos did not work, but they may be the old type.And
not work in the digital system.On the test the red light was on.ON the tank the green light was on, But nothing happen with that radio too.
I know the tank runs well, but can't get any thing going with these new or old radios.
The blue wire is the {-} ? from Armortek for the R/C plug, green is the ground.{blue,red,green}
I don't know what to do now.
I have a 3 ch radio that may be good for a test, but I have not found the rec, for it yet.
I don't mix transmitter with rec. as some may think.
But I did have 3 rec for 1 transmitter, all with the same {f} But that transmitter is gone now.
Dan

[Adrian Harris]

> The 3rd was my Futaba, 6ch 2.4GHz model T6EX the servos did not work, but they may
> be the old type. And not work in the digital system. On the test the red light was
> on. ON the tank the green light was on, But nothing happen with that radio too.

The green light should be on the receiver, to show that it has a link with the transmitter, and there should be a green light on the back of the transmitter, to show that it is happy.

> The blue wire is the {-} ? from Armortek for the R/C plug, green is the ground.

The various manufacturers wiring colours are:

Armortek:

RC Signal - Blue
5V Supply - Red
0V Supply - Green

Futaba:

RC Signal - White
5V Supply - Red
0V Supply - Black

Spektrum/JR:

RC Signal - Orange
5V Supply - Red
0V Supply - Brown

Adrian.

[Dan Williams]

Hello Adrian, Maarten, & Yves,
I have not been back here for some time.Larry and Ramon give me some ideas, and after reading the instrustions and found the part on "link transmitter with recevier" with the lights being red or green.But the book did not say or I missed it where the ID set switch was.And Ramon told Larry whom told me, it is on the receiver. between the antenas.After the link was made all 6 servos worked old and new stlyes.And now the tanks works too.
Thanks guys Now I have to figure out the other 2 radios.{Futaba is the thats working.}
Dan

[Adrian Harris]

Glad you got the Futaba working Dan

As far as I'm aware, it's only 2.4GHz systems which need the transmitter and receiver to be linked like that. Other systems like the older Futaba 40MHz 6EXA systems just used paired crystals in the transmitter and the receiver to "link" up.

For instance, I've been using a 40MHz Futaba for testing my new smoke control system and all I had to do was ensure that both the transmitter and the receiver had 40.665MHz crystals fitted.

That was the problem with the old fixed frequency RC systems; any Futaba transmitter fitted with a 40.665MHz crystal would control all the models within range which had a Futaba receiver which was fitted with a 40.665MHz crystal. And the same went with the other available channels. It would probably also interfere with other manufacturers systems.

Which brings me onto another point - the tuning of the crystals varies between manufacturers, so a matched pair of Futaba crystals may not work correctly if used in a Spektrum transmitter and receiver, even if they work together in Futaba equipment. They may appear to work, but possibly only on a couple of controls.

Adrian.

[Dan Williams]

Hi Adrain,
I did get the Futaba 2.4GHz radio to work, but not the Spektrum.I do remember buying a 2nd rec. to run
another model from.One problem was 2 cells did not charged up, But after replacing the batteries, the
Transmitter was up to full power.So I should have 1 rec that works with that trans. I have to see whats in
the panther ?
How do you link the rec to transmitter of the 2.4GHZ spektrum ? the book does not fully say how to with
this.And the Futaba book only said to press the ID switch , but did not say where it was.That does not help
at all.
Thanks Adrain
Dan

[Adrian Harris]

The manual for the DX6i is available on-line here:

http://www.spektrumrc.com/ProdInfo/File ... l_DX6i.pdf

The binding procedure is more involved than for Futaba as it needs a special plug to be fitted to the receiver. It's explained on page 18 of the manual.

Adrian.

[Dan Williams]

Hi Adrain
I was doing it wrong, I will give another try and it should work.
Thanks for your help.
Dan

[Adrian Harris]

Keep us posted

Adrian

[Dan Williams]

Hi Adrian,
I don't have the right bind plugs, I only have the male.I had a male plug with 2 female plugs on one line,
That I think I made.{ the sherman sound system had something different}
So all I got was the rec. blinking red, and nothing happens when I tried the test.
Monday I will shop for the right plugs.
Thanks
Dan

[Dennis Jones]

Hi Dan,

I have a Spektrum radio and you need a bind plug to bind the transmitter to the reciever, if you don't have one you can make one up from an old servo lead, you just need to connect together the negative and signal wires (either black & white or brown & orange, 2 outside pins). Basically you insert the bind plug in the battery/bind socket on the receiver, you then plug a battery in to one of the other sockets to provide power, set all controls on the TX at neutral as this will set the failsafe positions as well. Apply power to the receiver the led should flash then holding down the trainer button on the TX turn the TX on and after a while the led on the RX should go on solid this indicates the two are bound. Turn off TX and then turn off RX and remove binding plug.

Dennis.