I'm not sure what the rules are in Canada. Here is a link to the Model Aeronautics Association of Canada
http://www.maac.ca/index.php
In the US, 75 mhz is for surface only and 72 mhz is for air only
You can get 8 and 9 channel transmitters on 75 mhz
Airtronics RD8000
http://www.hobbypeople.net/prdcls/r460762.asp
Futaba 9C Super
http://www3.towerhobbies.com/cgi-bin...I=LXRLN0**&P=0
There are probably others but it is late and I'm sleepy.