diplexer
noun
di·plex·er
-sə(r)
plural -s
: a combining network (such as an impedance bridge or a filter circuit) allowing operation of diplex transmission (as of a radar and a communication transmitter)
a simple diplexer may be used to feed the picture signal and the sound signal into the same antenna 
Radio Corporation of America Review
Radio Corporation of America Review- control column
- control electrode
- control experiment
- control experiments
- control freak
- control grid
- control head
- control key
- control mark
- control number
- control panel
- control rod
- control rods
- control room
- control species
- control stick
- control surface
- control the purse strings
- control tower
- control track
- controllabilities
- controllability
- controllable
- controlled
- controlled experiment