MAN-C24-0001 - Güralp Systems Limited
MAN-C24-0001 - Güralp Systems Limited
MAN-C24-0001 - Güralp Systems Limited
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CMG-CD24<br />
2.3.4 Installing wireless hardware<br />
The small antenna supplied with the CD24 is adequate for initial<br />
testing or temporary installations with an access point within 50m of<br />
the digitiser.<br />
To send data over a larger distance, or<br />
if the line of sight between the<br />
antenna and the access point is<br />
blocked, you will need to use a larger<br />
and more powerful antenna.<br />
In infrastructure mode, you can<br />
reduce the power requirements by<br />
using a directional antenna pointed at<br />
the location of the access point. The<br />
access point does not need to be<br />
permanently present. For example,<br />
you could set up an array of CD24<br />
digitisers with antennas pointed<br />
towards a prominent natural feature<br />
with line of sight to all the digitisers,<br />
and access them all from this location<br />
using a laptop PC.<br />
2.4 Configuring the digitiser<br />
Autonomous CD24 installations will need to be configured before<br />
deployment. You can do this either<br />
• using the graphical interface provided by Scream! (see Chapter 3<br />
on page 25), or<br />
• over a terminal connection (see chapter 5 on page 53).<br />
Both methods provide full access to the configuration options of the<br />
CD24.<br />
In particular, the CD24 can operate in a number of transmission modes.<br />
These modes determine whether the unit stores data in its on-board<br />
Flash memory, sends it over the serial link in GCF format, or does<br />
some combination of these. See section 3.2.5 on page 40 for more<br />
details.<br />
20 Issue C