Combiners are used to combine the signals of several transmitters and translators into one antenna system. Combiners are available with two or three cavity band-pass filters.
Star-point combiners represent a compact and effective solution when there is a large
channel spacing between the transmitters and translators. In the star-point configuration it
is possible to combine up to three band-pass filters. The star-point combiner is pre-tuned to the
Vigintos Elektronika Star-point Combiners:
- SP1-2-2FM SP1-3-2FM 2x500W Datasheet
- SP1-2-3FM SP1-3-3FM 3x500W
- SP1-2-4FM SP1-3-4FM 4x500W Datasheet
- SP3-2-2FM SP3-3-2FM 2x5kW
- SP3-2-3FM SP3-3-3FM 3x5kW
- SP3-2-4FM SP3-3-4FM 4x5kW
Constant Impedance Combiners
Constant impedance combiners consist of pairs of 3 dB couplers and band-pass filters
with the dummy load connected in modules for each of the narrow-band inputs to the combiner.
They are commonly used when the channels of the transmitters and translators are close, or when
connecting a new module to a broadband input in order to open additional channels.
Vigintos Elektronika Constant Impedance Combiners:
- 3DB1-2-2FM 3DB1-3-2FM 1+5kW Datasheet
- 3DB2-2-2FM 3DB2-3-2FM 2+5kW Datasheet
- 3DB3-2-2FM 3DB3-3-2FM 5+10kW
A Combination Of Star-point And Constant Impedance Combiners
When more than four transmitters and translators need to be connected in the same antenna
system, a combination of star-point and constant impedance combiners can be installed.