Amphenol Procom CSR-DMT User Manual - Page 6
Browse online or download pdf User Manual for Repeater Amphenol Procom CSR-DMT. Amphenol Procom CSR-DMT 16 pages. Bi-directional digitally controlled amplifier that offers an increase of signal strength in small and medium-sized rooms.
Print Page2.0 HARDWARE DESCRIPTION
2.1 Block diagram
Presence of various nodes can be different for different ordering options of CSR-DMT.
2.2 Filters characteristics
In this section digital filter characteristics are described. Digital filter node is purely software based, thanks
to that it is possible to reconfigure selective filters in a desired way without any change to the hardware. In
the next picture some examples of possible filter configuration are given.
Each direction can have up to four band-segments. Each segment bandwidth can be selected from a
range of 25 kHz up to 5 MHz. Bandwidth adjustment steps for bands 25 kHz up to 1MHz is 25 kHz.
Bandwidth adjustment steps for bands 1.1 MHz up to 5 MHz is 100 kHz.
Filters have selectivity properties according to ETSI TETRA standards. All filters can be divided into two
different groups. Filters from first group have better selectivity.
Table 1. Filter groups
Group number
1
2
Figure 1. CSR-DMT block diagram
25 kHz - 1 MHz (step 25 kHz)
1.1 MHz - 5 MHz (step 100 kHz)
Passband
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