In TNG: "Where no one has gone before, the traveller sends the Enterprise D over 2,000,700,000 light years to the M22 Galaxy
LaForge estimates it would take 300 years to get home, and that a subspace transmission would be recieved by starfleet in 51 years.
But in Voyager, they are sent a mere 70,000 light years by the caretaker, and say it would take 10 years to get home.
The Enterprise went over 28581 times as far as Voyager, so shouldn't a subspace message from Voyager have been recieved by starfleet in a couple of days at most? And shouldn't it only have taken a couple of weeks to get home?