Such was the way with messages transmitted in the special ink.
A means to transmit messages in jump space was developed quite a while ago.
One must take the time to study different cultures as to fully understand messages being transmitted.
"Have you the way of transmitting messages at faster than light?"
We also understand that the design of our buildings and the art they contain transmit messages.
Technology that could transmit messages from beneath the earth's crust.
Later the code was used by the military to transmit messages over radio frequencies.
Why should a senior scientist want to risk his neck transmitting messages to the West?
After a moment I continued transmitting the mother's message.
Initially they keep him away from the radio; but he is able to distract them and transmit his message.