RF combiner

Frequency combiners are used to de-couple two or several mobile communication channels with different frequencies, thus allowing several service providers to jointly use one antenna feeder cable or one antenna. SPINNER supplies innovative diplexers, triplexers or multiplexers for all mobile communication systems in the frequency range 0 to 2,690 MHz that are currently in use. All combiners are bi-directional, so they can be used for combining and splitting the transmitting and receiving signals. Extremely low insertion loss, excellent de-coupling and superior intermodulation properties prevent mutual interference of neighbouring systems. AISG/3GPP-compatible DC connections allow the transfer of control signals to the antenna and power supply to antenna pre-amplifiers. All frequency combiners are suitable for indoor and outdoor installation. Our product range includes brackets for mast and wall mounting. In broadcast applications multi-channel combiners are used to combine the signals of two or several channels on to one antenna. Depending on the channel spacing SPINNER offers the following solutions for combining: Filter combiners are mainly used when the channels are close together or when retuning is required. Even adjacent channel or adjacent block operation and the combination with starpoint and strechline combiners at a later point in time are possible. Starpoint and manifold combiners are usually designed as 2- or 3-way combiners and require a minimum spacing of one channel or one DAB block in between.