The Average PC Gamer

So I have only been playing KSP for about a week and today I built my first satellite. I got it into a circular orbit at 374,000m but I don't think it is transmitting to my satellite on the ground. Isn't there a red line on the map to show when it is transmitting? Also I now have a yellow circle outside my orbit that has two red markers on it that say target position 1 & 2. I have the antenna opened and the solar panels/batteries are working fine. Am I missing something?