Sennheiser 300 series Instruction Manual page 31

Connecting antennas
For more information about antennas and antenna accessories, see
"Antennas and accessories".
In order to ensure optimal reception even in the case of poor recep-
tion conditions, we recommend using remote antennas.
Connecting remote antennas
▷ Mount two antennas or a combination of an antenna and an antenna
amplifier to the BNC sockets ANT RF IN A and ANT RF IN B.
Connecting rod antennas
▷ Mount the antennas to the BNC sockets ANT RF IN A and ANT RF IN B.
Align the antennas in a V-shape in order to ensure the best possible re-
▷
ception.
Installing the ASA 214
55