RE: H9 Ultra Stick and RDS8000
Hmm, there used to be a User's Guide up on the Airtronics.net website that answered this very question. For some reason, it seems to have gotten dropped when the site was redesigned recently.
When all else fails, you can simply call them up and ask:
"For those customers with Airtronics technical and setup questions, Airtronics offers a toll-free help line. You can reach an Airtronics expert at 1-800-262-1178 Monday through
Friday 12pm to 4pm Pacific Time."