Starfleet Academy Courses. Subspace communication: This makes it much more practical than conventional radio. In fact, starships rarely even monitor frequencies that traveled at the speed of light. Consult: TNG: "The Ensigns of Command"; VOY: "The 37's", etc. Star Trek Starfleet Command | Starfleet Academy

Starfleet Academy Courses. Subspace Communication: A message traveling subspace over a distance of 2.7 million light years would have taken fifty-one years and ten months to reach Federation space in 2364. Consult: TNG: "Where No One Has Gone Before." Star Trek Starfleet Command | Starfleet Academy

Starfleet Academy. Courses. Warp Theory. The Phoenix: The nacelles were extended, the warp core and plasma injectors were brought online, and the nacelles were charged. It took several seconds to accelerate to critical velocity. Light speed was then achieved by the craft. The light speed was warp 1. Star Trek Starfleet Command | Starfleet Academy