4. Functional Description
MF0121ACP_uc.docx Manual for Node AM4 Page 37
4.3.1. Multiband Combiner
The task of the multiband combiner is to combine and to separate the individual frequency
bands received from the common BTS and Mobile port.
The following figures show a examples of multiband combiners for the Node AM4.
o DO NOT use the 30 dB coupling probes [3] for modem connection!
o DO NOT connect the Modem RF probe [1] on the "Mobile" side of the Node AM
repeater with the 30 dB coupling probes [3]!
figure 4-2 Node AM4 3-band combiner (850-900, 1800, 2100 MHz) with three pairs of
band ports)
Front view 3-D-view
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