Security Function Tests - ashtech ZY-12 Information Supplement

Security Function Tests

Contact the security officer and give the number and serial number of the units ready
for the security function tests. All the following tests are performed in a temperature
chamber set at 55° C, but this is not a requirement.
Many of the following tests can be performed and verified either by the
receiver's front panel controls and display or by serially communicating with
the receiver from a PC. Instructions are included for both, but it is only neces-
sary to perform one method, whichever is most convenient.
The receiver should be connected to an antenna and a PC.
1. Turn on the receiver by lifting the switch on the back.
2. On the PC, from Windows, double-click on the Ashtech EVALUATE icon to
start the EVALUATE program.
3. Once Evaluate has started, select "Connect to GPS Receiver", then click
"OK". At the "Connection Parameters" screen, select appropriate computer
communications (COM) port. If this is the first time that EVALUATE has been
run, click on "Port Setup". Make sure the Port Settings are: 9600 Baud, 8
Data Bits, None Parity , and 1 Stop Bit. Click "OK", and then click "Connect".
4. If the UUT (Unit Under Test) is communicating correctly, click "OK" at the
"Initialization complete" screen. Press "Ctrl-T" to bring up the "GPS Receiver
Terminal" screen. In this screen "$PASH" commands can be sent to the ZY-
12.
5. If a data log of commands and responses is required, press <F2> now to start
the data logger. Disregard the epoch counter at this time. The data logger can
be used to log any ASCII messages to and from the UUT. Note that the
program automatically names the log file. Press <F2> again at any time to
close the log file. The file can be renamed.
Security Function Tests
5
97