combiners are commonly known as 3dB Hybrid combiners.
CCE's 4-in/4-out combiners are commonly known
as Multi-Carrier Combiners.
They've been designed to minimise passive
intermodulation products (PIM) to a level of -150* dBc (7-16) or -140*
* at 2 x 20W GSM carriers
are 100% PIM tested prior to dispatch.