Campbell TGT1, Operator'S Manual

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TGT1 GOES Transmitter
10
When the percentage of power reflected is greater or equal to 5, one or more of
the following situations exist and must be corrected:
•
The antenna is not connected.
•
The antenna is too close to metal.
•
You are transmitting inside a building.
•
The antenna is covered with snow or ice.
•
The frequency that the antenna is tuned to does not match the transmitter's
frequency.
•
There is a problem with the coaxial cable connector or connection.
•
There is a problem with the antenna cable.
8. Programming the Transmitter
8.1 Star Pound Mode
The star/pound (*#) mode is for programming the transmitter. It establishes and
edits parameters, displays status information, and performs test transmissions. The
*# mode is accessed via a keyboard/display (
not with a computer).
If storage modules are used along with the TGT-1, enter the
command “*91A9A*0” after connecting the storage module.
*# mode cannot be accessed without a P120 instruction in the
program table.
8.2 Establishing and Editing Parameters
The parameters set the transmitter's clock and define the address, transmission
intervals, and uplink channels (see Table 8.2-1). The parameters are
temporarily stored in the datalogger. The clock parameters are transferred to
the TGT-1 after parameter 3 is entered with the “A” key. The remaining
parameters are transferred to the TGT-1 after parameter 26 is entered with the
“A” key. If the keyboard/display sits idle for 2 minutes, the datalogger will
discard all changes that have not been transferred to the TGT-1.
Before establishing the parameters, type in *0. The display should show only
LOG, not LOG1, LOG2, or LOG12.
The *# mode will not run when *1 and *2 are active, therefore
their scan rates must be set to zero.
Enter the *# mode by typing in *#. The colon disappears during the upload
process and reappears when the process is complete. 12:00 is displayed when
you are in *# mode. Press A to edit parameters. 01: is then displayed
indicating the datalogger is ready for parameter 1. You type an A to store each
parameter and to advance to the next one. Individual parameters can also be
edited by typing in *# and the parameter number. Remember, the TGT-1 clock
is not changed until the “A” key is pressed after the 3
rd
parameter. No other
changes are saved until the “A” key is pressed after the 26
th
parameter.
NOTE
NOTE
NOTE