DV Development Group DV4mini Manuale d'uso - Pagina 4
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User Guide 2015
On the upper right is a WLAN stick and below it the DV4mini. In addition there are
also connections to a keyboard, a mouse and a HDMI display. This confguration
allows for a power saving continuous operation at low expense.
Reflectors:
A refector is a server connected to the Internet or Ham Net and is linked to a
number of digital Ham Radio repeaters. If one of these repeaters is active it will
send the voice data stream to the refector. The refector sends a copy of these
voice data to all of the connected repeaters. This means that a QSO can be heard
on all connected repeaters simultaneously.
Thus the chance to fnd a QSO partner is considerably increased - which is one of
the reasons refectors are quite popular.
Today the following systems are in operation:
DCS (Digital Call Server):
DCS is the most modern D-STAR refector system and in worldwide use. Many
countries use their own refectors which difer from each other by their 3 digit
number. (DCS001, DCS002 etc).
Each DCS refector has 26 rooms which are allocated to various regions of a
country or continent. These rooms (A to Z) have been given names to make their
identifcation easier and are shown on the user surface of the DV4mini.
Xreflector:
Xrefectors are the second generation of D-STAR refectors and no longer widely in
use. However in some countries like Italy they are still used as the hams have not
yet agreed to a uniform concept.
Also Xrefectors have less ports over which simultaneous QSOs be run. Xrefectors
are named XRF001, XRF002 etc.
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