Xylem XL Series H-522 - Plus - Manual (Page 192)

16-36 Operation with the GOES Radio
XL™ Series
NWS: National Weather Service.
PDT: Platform Description Table.
Note:
Each DCP will have a PDT defined on a computer system at NESDIS. If
the table is not completely defined, then when data is retrieved the error
message “PDT RECORD IS NOT COMPLETE,” will appear. Part of this
table describes the Radio manufacture and model number. For the
Telonics radio, the items must be entered into the PDT table as shown
below.
Manufacture: “Telonics, INC.”
Model Number: “TGT-1"
Preamble: This is a carrier signal sent to the satellite before any data is sent.
Preamble Type Short Preamble Long Preamble
Total Preamble Time 0.98 seconds 7.3 seconds
SHEF Codes: A two character code that describes the DCP message data type. Common
Shef codes are shown below.
HG = Stage
TA = Temperature Air
VB = Battery Voltage
Transmission Window:
The scheduled time interval which a DCP can transmit data in the self-timed mode.
This is normally a one-minute window. GOES Radios using the higher baud rates may
be assigned a shorter window.
UDT: User Description Table.