He said I'll test new TV receiving equipment (9,4)
I believe the answer is:
Here is my best explanation:
'tv receiving equipment' is the definition.
'he said i'll test new' is the subsidiary indication.
'new' indicates anagramming the letters.
'hesaidilltest' is an anagram of 'satellitedish'.
(Other definitions for satellite dish that I've seen before include "TV?aerial", "TV signal receiver", "Bowl-shaped aerial", "TV plate" and "Type of TV receiver".)