"Questions are great but for others to respond, they need more information."
You are sooo right Lew👍 Unfortunately🤔
So often I've had to start a reply with -
'This is another How long is a piece string question'.
And then it often takes repeated questions to finally get the basic info required to be able to help - a la blood and stone.
Doug 😎

Questions are great but for others to respond, they need more information.

For example, saying something like "I have a 3 channel transmitter that I want to convert to 6 channel..." isn't enough.

Now if that was "I have a 3 channel (brand) that is a (model number) transmitter than I want to..." -now that helps a lot!

Not all manufacturers have the same design and functions.

Not being picky here, but this happens here often. I think if this information is supplied up front there will be less speculation and confusion. (Just my opinion.)

Lew
Florida, USA

I was just curious as I was going to control a boat with 2 channels, then decided when I found out I could reprogrammed the Transmitter for up to 8 channels at least, I thought I could add other accessories. I have a 3 channel receiver I jut wanted to bind another 3 channel receiver to make 6 channels. Clearly I have received mixed responses which I thank you for, I guess I'll update the transmitter and obtain a dedicated 6 channel receiver, unless there is a way to use an extra 3 channel,time will tell. I do gave a limited budget.....

Just to possibly confuse this issue, just a tad bit more, some expandable radios, like FrSky, utilize multiple receivers, identical receivers, but the channel assignment of the receivers is set in the transmitter when the receivers are bound to the transmitter. For example, using two 8 channel receivers, the first is assigned channels 1-8 and the second is assigned 9-16.
I don't see where your system's instructions mention any such capability, but as Doug said, the Chinese translation may leave a bit to be desired.
If you are able to expand your transmitter, the question becomes, 1) will the system recognize two receivers as I have described, or 20 do you have to purchase a larger multi-channel(6-8) receiver?
Sorry, but I can not answer that.😌

Depending on whether your TX can bind multiple receivers (like early 9X radios) you can bind 2 or more, but they will all be the same. Only useful if you want to run 2 3ch boats from a single 6ch tx, or get round interference / feedback from an accessory (my cheap sound unit does that on a siamesed throttle lead but is fine on another channel on a separate paired 6ch RX).

If you have a 9ch TX and only a 6ch RX, you can add another 3ch Rx to operate the other aux channels. I've successfully run 2 boats off 1 9X TX without problems, (1 twin brushed and one brushless) Video's rubbish, but you get the idea.



JB

Hi Nick,
"According to many on YouTube i can reprogramme the 3 chn Tx up to 6 chns each free chn will have its own operation via each rx position"
Will you please post a Link to at least one of the 'many' who claim that this is possible.
And explain what an 'rx position' is?

Like ToraDog I too have downloaded the user manual and, apart from the usual appalling chinglish 'thumbing through the Chinese - English dictionary' translation, I don't see the additional control elements that you would need for the 'extra' channels🤔
Nor any mention of 'channel' expansion capability or how you would 'reprogramme' the TX with no display to show what you are doing.
Doug😎

Answering this question is a lot easier now that more info is supplied. So, using your original question:

"OK Guys one of my more sensible questions. If I have a 3 cn transmitter that I know how to increase to 6 or 8 channel can I bind 2 x 3 channel receivers. If so can I get a fork wire to connect power to both please."

I believe that once the transmitter is upgraded (up to 8 channels via adding switches, wiring, firmware) you would need an 8 channel receiver. I doubt using two 3 channel receivers would work at all for having 6 channels.

For the price of about $16 (US) you can get the Flysky R8B on eBay.

Side note: Looks like this might be a good way to go for those that want a steering knob and finger throttle with eight channels as opposed to joysticks (RC trucks?) - if you can find one🤞.

Lew
Florida, USA

I've the same transmitter and yes it can be done though you'll find the channels are the same as you're master receiver in 1,2,3. So unless you wanted to use it for a twin rudder, twin motor scenario I'd forget it.

The great thing about Flysky is the price. If you're looking for more dedicated channels I highly recommend the Flysky GT-5 which offers much more and is still on the cheap side

Good luck

Scott

Nick,
I have downloaded and read the manual for the FlySky FS GTC-3 and there is no mention, anywhere, in the manual that the system can be expanded beyond 3 channels.
Please enlighten us as to where you saw/read that this system can be expanded.
I am not saying that you are wrong, but I just don't see any information about doing what you suggest.

The Tx is a 3 channel Flysky GTC3. It can have the channels increased from 3 up to 8 channels using other control buttons to activate channel apart from steering and speed. YouTube has numerous videos of how to up grade

Even if you could reprogram each of the 3 channels up to 6 each how do you control them!!! I'm not even sure if I understand what that means!

You can bind more than one Rx to a Tx but I don't know if both Rx can be used at the same time. Usually they are in separate models. Having said that I did read somewhere of someone running 2 boats at the same time from one Tx so I guess 2 Rx's can work? I suppose he would use different channels from the Rx for the rudder on each?

My head's hurting again!

How about just posting information on the transmitter or the YouTube link? (Eliminate the unknowns.)

Lew
Florida, USA 🇺🇸

Smoke and mirrors I think!

Nick,
Don't believe everything you see on YouTube...
You have not told us which radio system you are using. It would certainly help.

According to many on YouTube i can reprogramme the 3 chn Tx up to 6 chns each free chn will have its own operation via each rx position

+ 1

"Channel" can be confusing. If you have an older radio you would have different frequencies identified as channels. (Glad we are past that for the most part.) The receivers themselves are not channels, but have channels

According to manufacturers, each system (trans & rec) has "channels" - throttle, rudder, etc., and they are numbered ch1, ch2, etc. and are called "multichannel".

Lew
Florida, USA 🇺🇸

Your TX will not instantly & simultaneously bind to 2 rcvrs. So all 3 will not end up on the same radio ch.

BTW I wish people wud stop referring to receivers as being multichannel. They are multifunction. Rudder, throttle, elevator etc are functions, they are not channels. The TX & RCVR are on a radio channel.

Radio apparatus is incredibly inexpensive nowadays. Back in 1972 I paid over $400CDN for my first 4-function 72MHz system. Today I bought a 6-function 2.4 GHz TX & rx for $51 on Amazon (less ESC & servos, which are quite inexpensive thanks to the high volume produced nowadays)

I'm not sure you can bind them because the binding is often two- way (example: receiver battery feedbavck to thetransmitter) and "confuse" the transmitter.

Also, if you can make the transmitter 6 channels how would the first receiver recognize channels 1, 2, 3, and the second receiver recognize 4, 5, and 6? Looks like one of the receivers would need to be modified.

If the transmitter can be upgrade modified (not hacked) the manufacturer might have a six channel receiver available. (I did this to one of my Flyskys.)

Lew
Florida, USA 🇺🇸

I tend to agree with Stotty1111

There appears to be two questions here. I'll answer the second one first:yes you can power two receivers off the same battery or BEC, the latter is preferred because of the increased current draw of multiple receivers and the added servos you will be operating. A simple Y connector will suffice to provide the power needs. ( I usually remove, or tape back, the signal wire of the Y splice)
To your first question regarding whether you can expand your system: It depends upon the radio system that you have. Some systems, like FrSky, are designed to be expanded.
You need to tell what brand and model radio system you are using. Also, carefully read, or download and read, your radio's manual.

You will have problems as the 2 x rx's will both be Channels 1,2,&3 I think!
good luck though!