The Weather Fax system for Windows (version 3.0)
is a software program that is preconfigured to run on the
COMM MOD. It works with Windows NT and can
operate even while other programs are running.
Weather Fax is used to copy HF facsimile products and
requires that a demodulator be used to interface with the
HF receiver. The program can be used to tune the
receiver and format a facsimile reception schedule. A
Weather Fax scheduler database allows you to browse
through selected world weather fax stations and
schedules. The COMM MOD can also be configured to
receive RATT (Radio Teletype) directly from a
shipboard patch panel. RATT data is basically AWN
data received from the Fleet Environmental Broadcast.
RATT data can be saved in an ASCII format. Detailed
setup and operating instructions for the COMM MOD
are contained in the IMOSS Users Guide.
The purpose of the satellite module (SAT MOD) is
to receive, store, and display data from meteorological
satellites. Like the communications module, the
satellite module is another separate laptop computer
that is packaged in a separate ruggedized case.
Automatic Picture Transmissions (APT) data from
polar-orbiting satellites, as well as WEFAX imagery
from geostationary satellites, can be received
depending on the antenna selected. The received data is
ingested and managed by software known as
WEATHERTRAC. The SAT MOD can be linked to the
COMM MOD and to the main MOD to provide data
transfer and briefing support, or it may be deployed
independently. The satellite module is discussed in
detail in chapter 1 of module 3. Setup and operating
instructions are contained in the IMOSS Users Guide.
What is the main function of TESS?
What is the major difference between older
versions of TESS and TESS-NC Transition?
The TESS-NC Unix-based workstation is used
for what purpose?
How many environmental subsystems does the
IMOSS is primarily designed for what segment
of METOC support?
Which module of IMOSS is designed primarily to
What is the purpose of the IMOSS
What type of satellite data can be copied by using
the Satellite Module?
SATELLITE AND HIGH-FREQUENCY
LEARNING OBJECTIVES: Recognize the
various SHF satellite and HF radio broadcast
systems used to transfer environmental
information to ships and mobile environmental
teams, Identify the publication that lists HF
radio environmental broadcast channels.
Describe HF facsimile receiver equipment used
by Aerographers Mates.
In this section, we will discuss the various super-
high-frequency (SHF) satellite and high-frequency
(HF) radio environmental broadcasts that are available
to Aerographers Mates stationed aboard ship or
assigned to mobile teams. We will also discuss HF
facsimile receiver equipment.
FLEET MULTI-CHANNEL BROADCAST
Shipboard Aerographers Mates routinely send all
observations and forecasts from their ship to other units
via AUTODIN. They also receive and send a number of
administrative messages via AUTODIN channels
during normal operations. The bulk of incoming
meteorological and oceanographic data is received on a
satellite broadcast known as the Fleet Environmental
Broadcast. Both AUTODIN and the Fleet
Environmental Broadcast are transmitted to ships via
SHF satellite as part of a secure communications system
known as the Fleet Multi-channel Broadcast (FMCB).