Timewave DSP-232, Operating Manual

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Chapter 6 GPS Applications
APRS Adapter Cable (optional) to connect with a computer running APRS software to visually track the vehicles.
When an emergency arises, such as an injured runner, the coordinator can see which ambulance is closest to the
scene and dispatch it appropriately through voice communications.
Further, if all vehicles in the previous example were equipped with a PC running APRS, a DSP-232, a GPS
receiver, a radio, and an APRS Adapter Cable, the coordinator could not only see where the vehicles were - he
could dispatch them directly through the APRS system. The drivers of the vehicles would receive short messages
from the coordinator such as, “Runner down, 4th and Main. Vehicle 2 respond.” These short messages appear on
the individual driver’s computer screen much like typical Packet messages. The messages can also be accompanied
by computer ‘beeps’ to alert the driver to an incoming message. APRS includes a bulletin feature where all vehicles
could receive messages simultaneously such as, “Take lunch.”
4. DSP-232, ULTIMETER II, and a radio (No PC):
This configuration requires an
ULTIMETER II home weather
station, see figure 6-3 (information
on ULTIMETER II weather station
packages can be obtained by
calling 1-800-USA-PEET). In case
you are not familiar with
ULTIMETER II, it is a weather
station package including a control
panel into which a thermometer,
wind gauge, and an optional rain
gauge are connected. If you like,
you can monitor the temperature of
any room in your home, keep track
of temperatures in a greenhouse or
outbuilding, or set alarm limits on a
freezer or other appliance.
The DSP-232 can be connected to
the ULTIMETER II weather
station, interpret the weather data,
and transmit the weather and
location information in packet so
other APRS users can see your location and the weather at your location. The remotable polling features of the
DSP-232 make it easy to set up a weather station in a remote location and receive the remote weather data via APRS
at your house, office, or wherever. While at work, you can keep track of the weather situation at your home (inside
or outside temperatures—whichever you prefer). Farmers can keep apprised of rain, wind, and temperature at a
remote field site. In addition, several weather stations set up in your region can provide you with a comprehensive
weather picture of your area—available to you and all other users at anytime. The DSP-232, ULTIMETER II, and
APRS add a whole new dimension to packet radio—we hope you experiment with this new application. Set-up
procedures for an Ultimeter II weather station are discussed later in this chapter.
Setting Up the DSP-232 for GPS Operation
Below, set up procedures for the DSP-232 are described for three Packet/GPS configurations: Stand Alone
Tracking, APRS Hardware Single Port mode, and APRS Dual Port Mode. APRS software automatically sets the
parameters for your TNC except when the DSP-232 is used as a Stand Alone Tracking Device (because APRS isn’t
connected).
Stand Alone Tracking Device Set-up:
To set up the DSP-232 for Stand Alone Tracking, follow these steps:
September, 05 6-3