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Audio
and non-audio data transmitted in a DV/IP system may be recorded
onto a hard disk recorder, and permanently archived on CD-ROMs,
DVD-ROMs or any other form of computer data storage media.
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All
traffic on a DV/IP network, whether audio or data, may
be "logged" or "recorded" by a DN-100
Digital Logging Recorder. Communications on all trunked
or conventional channels may be stored and converted
into ".dwc" files. Because this is a transmission-oriented
recorder, the DN-100 does not record "silence"
between transmissions.
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DV/IP-format
.dwc files contain compressed digital audio in DWC's proprietary
format, and include a header which contains the ID of the
originator, the ID of the destination, the time, date, channel,
and other pertinent information, even the GPS location if
the originating mobile or portable had an embedded GPS receiver.
The DN-100
Recorder stores all transmissions, regardless of the channel,
group, or unit. It does not have specific recording channels,
since "channels" are irrelevant on a DV/IP trunked
system. The audio and data transmissions are not decrypted
prior to storage, so the stored files, both in the DN-100
and on the ultimate long term storage media, are secure from
interception. DWC's DN-150
Archive Playback Software and a DC-100 Desktop Dispatch Gateway
are required for archive playback.
Note:
This system only works with the DV/IP Digital Radio System.
It is not compatible with analog audio inputs or non-DWC systems.
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