Hi vease,
Please check out the FAQ for the 9Z on our webpage, this may help you out:
http://www.futaba-rc.com/faq/faq-9z-q97.html
I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.
Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician
Also you may want to check our Website at (
http://www.futaba-rc.com)