Specifications
BATS AND PORTABLE BATS OPERATION
3-38
Setup Data Output
Data Output Setup is similar to the Remote
Device Setup. A separate COM port can be
configured to only output data (no control in-
put). There is no Sentence Input to Trackman
as in the Remote Interface Setup.
Setup the Data Output dialog to output the for-
mat that is compatible with the navigation soft-
ware.
The Connection Type can be either “COM Port” or
“IP (net)”.
TCP/IP & UDP Protocols
The global network we all know as the Internet
transfers information between computers using a
protocol (a set of rules) known by the acronym
TCP/IP which stands for Transmission Control Pro-
tocol/Internet Protocol.
All Internet transfers use IP (Internet Protocol) as the basic underlying method of 'packaging' data
to be transferred.
Above that underlying packaging 'layer' of operation there are two general methods of transferring
data.
The first method, which is the one most of us know from 'surfing the Web', involves making a
point-to-point connection when transferring data. This point-to-point connection uses the TCP
(Transmission Control Protocol) part of TCP/IP. It's a lot like making a phone call, when the other
person answers the phone your connection is acknowledged and you can transfer data back-and-
forth (talk) point-to-point.
The second method, called a datagram or connection-less interface, is a simple 'pack it up and ship
it out' technique that essentially works like mailing a letter. With a datagram you don't make a
connection with the receiver, you simply send your data and assume that it will get where you're
sending it. In the Internet world a protocol known as UDP (User Datagram Protocol) is used to
transfer data in this way.
One of the advantages of UDP is that you can send data to more than one receiver at a time since
there's no need to establish a point-to-point connection. This technique is known as UDP broadcast
mode. Using UDP broadcast mode an application acts much like a radio station, it broadcasts data
on a specific IP port and anyone who wants to 'listen' to the data 'tunes in' to that port. There's no










