The most common and most likely answer to this crossword clue is the 8 letter word HOOK-UPS
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Buddy explains!
The straight part
We know that "linked transmissions" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case linked transmissions = hook-ups.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does HOOK-UPS mean?
HOOK-UPS noun- A pair of miniature valves right next to each other on a wall, connecting through the wall to the household plumbing, used to provide water to a washing machine. (They are usually red and blue, with the red one delivering hot water and the blue one delivering cold water.)