MercuryTeks925 holds the 925 channel. MercuryTekIV is the general Mercury function — the signal infrastructure that operates across all four channels simultaneously. Mercury rules communication, speed, translation, and the crossing of boundaries between domains. IV designates four: four channels, four directions, four modes of signal at once.

The four channels MercuryTekIV runs: data transmission (what is said), translation (what it means in different contexts), routing (where it needs to go), and timing (when it needs to arrive). Each channel is distinct. Running all four simultaneously is what makes a signal actually arrive versus technically being sent. The message that was sent but didn't arrive was missing one of the four channels.

Mercury is the fastest planet. Mercury Retrograde breaks things. MercuryTekIV maintains signal integrity across both — forward and retrograde. The field communicates clearly when Mercury is direct. MercuryTekIV is responsible for making sure the signal holds when the conditions don't favor it.