TETRA  |  2013-10-31

Procom introduces new distributed antenna systems components

Source: The Critical Communications Review | Gert Jan Wolf editor

Procom has also introduced a new range of directional couplers, which provide isolation between outputs along with directivity. Couplers are used when small coupling values and isolation between outputs is required. Bands covered include: 80-140, 112-200,

Procom UK Systems, the distributer for Procom A/S, the Danish designer and manufacturer of antennas, filters and combining equipment, has recently launched new components for use with distributed antenna systems (DAS).

First up is a new tapper - the PRO-TAP 380-2700 - a multiband tapper covering the 380-2700MHz band. It provides ‘excellent high power performance coupled with low insertion loss over the entire frequency range’ according to the company.

Power tappers are devices that tap off a portion of the signal while allowing the rest of the signal to pass through with a minimum of loss. Tappers operate similar to directional couplers, but without the directivity and have relatively broad bandwidths. Tappers are used where small coupling values are not required.

Key features: PRO-TAP 380-2700


    •    500W power
    •    6, 10 and 20 dB coupling
    •    Low VSWR on input/output ports.
    •    No directivity.
    •    Coupled port must be terminated.
    •    Wide bandwidth.
    •    High Power.
    •    Accurate coupling values.

Directional Couplers

Procom has also introduced a new range of directional couplers, which provide isolation between outputs along with directivity. Couplers are used when small coupling values and isolation between outputs is required.


Bands covered include: 80-140, 112-200, 200-300, 300-400, 380-430, 380-470, 300-1000 and 800-2500MHz.

Key features: Procom directional coupler


    •    Coupling 10, 20, 30dB.
    •    Low VSWR on all ports.
    •    Directivity.
    •    Isolation between outputs.
    •    Moderate bandwidth.
    •    High Power.
    •    Rippling in coupling value over frequency.


Source: Procom UK