Greg, your mode S transponder will display your N number, your altitude, and your squawk on ATC radar, it will display your position and how high or low you are on TCAS equipped aircraft (ex. 2000 above or below) and it will display your position and altitude on ADS-B in equipped aircraft.

If you have flarm, you should be able to see ADS-B out equipped aircraft on your flarm display with a limited range of 5-6 miles. (Oudie, flarmview etc)