You can pay the subscription for as little as three months at a time up to three years,naturally it costs a little more for the short period.I have one receiver working right now and one turned off until spring.

You can make an A-B line from anywhere or just key in the coordinates you want from the display.

GS2 is the latest display,I am not certain if the old brown unit is still available or not,but it is a good unit and way less money than the new model.