can i increase range of my xbee s2c module by connecting to external antenna of higher dbi ?

Question

I have two s2c module which has a range of 1200m LOS but i need to track a vehicle on a race track which has a radius of 1500m. Is there any way to extend the range of two module by using external antenna.

Answer 1

ONLY if the country you are operating in allows you to. That is, the module would be certified for a given output power and Max gain. You can only use what it has been certified for in that country.

Answer 2

Either use 2 very good high gain aerials or place a RF booster on each device. As your on a race track these are generally out in the sticks, so interference should not be a problem. Otherwise go for the 900mhz version as they tend to have a longer range.