Hi, Steve I see what has been written,
I cannot help thinking that there is a different answer,
If you have a control board such as a CLARK or an ASP or an IBU 2 or PRO then you will be using a 2,4 Transmitter and receiver that is almost certainly programmable which means that every tank with its own independent control board and receiver once it has been programmed into the ONE Transmitter can be controlled just by the one transmitter whereas with one exception you have to use a different transmitter for each Tank if you are using a TAIGEN or HENG LONG Control board (RX18)
The one exception being an extra board from RCTA called an RC5HL-V9 which allows the RX18 to work with a Programmable Transmitter
,.RCTA is contactable -
www.rctanksaustralia.com
I hope I have not added to the confusion.
Shaun.