Spinner 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.

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.

Strechline combiners

are used as 2-way combiners when the minimum spacing is larger than three channels. Suitable mask filters can be used for converting this type of combiner from analogue to digital operation.

SPINNER combiners stand out for their low VSWR, low insertion loss, high isolation between the inputs, compact design and easy installation.

SPINNER frequency combiners are used world-wide, and since they are so reliable and maintenance-free they regularly exceed the high expectations that our customers have of SPINNER products.

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