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Kathrein : Duplexer 146 … 174 MHz.


The duplexer is suited to combine one transmitter with one or several receivers to a common antenna.

Type I: 719 628 - Type II: 718 388

Table & Details

Design and construction:
The duplexer consists of a 3-cavity or 4-
cavity S-P filter (Stop-Pass filter) for the low
band and a 3-cavity or 4-cavity S-P filter for
the high band. The two S-P filters are inter-connected
to a common antenna output
using cables of defined electrical lengths.
The S-P filters are designed to allow the
transmitter to operate in the low band or in
the high band.

Tuning:
The duplexer, because of its special con-struction
can only be tuned at the factory.
Special requests like other duplex spacings,
switching bandwidths or attenuation values
can be taken into account.
When ordering please specify the desired
high and low band frequencies.