Vaisala Hydromet Data Collection Platform - Manual (Page 163)

Chapter 4 ________________________________________________ Configuring Telemetry Options
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Device Configuration
The communications settings for the QST101/102 transmitter are
configured in the Device configurations view. The following
transmitter settings can be configured under the Configure frame:
- Timeout of the serial communication between the QML logger
and the transmitter can be left to the default value of 2000 ms.
- Transmission type, which defines the transmission type and bit
rate for the primary transmissions. The Transmission type
selection applies both to the primary and secondary transmissions
unless you define a different bit rate for secondary transmission
with the goes_sec_bps command. Refer to
Table 20 on page 177 .
- Under Miscellaneous options, either short or long preamble can
be selected for GOES 100 bps primary transmissions. For the
secondary transmissions, the short preamble is always used
regardless of the Long preamble option selection under Misc
options. This setting has no affect either for GOES 300 bps, GOES
1200 bps, or METEOSAT transmissions because a fixed preamble
is always used with these. Refer to
Figure 75 on page 162 .
- Under Miscellaneous options, you can select whether the
transmission is started at the beginning of the transmission window
or centered in the transmit window. Selecting the Tx at window
start option will cause the transmission to start at the beginning of
the transmit window; leaving it unchecked will center the
transmission in the transmit window.
- Time adjustment tolerance: the system time is always
synchronized according to the transmitter's clock. When the clocks
differ more than this setting (in seconds), the system time is
adjusted.