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INTRAC-305 TECHNICAL DESCRIPTION
© 2011 Advantech Wireless INTRAC-305 MANUAL - Issue 3.2 Page 59
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strength is recorded and at the end of this phase the antenna is
driven to that position and the INTRAC enters Standby.
At this point the peak may be confirmed manually and/or
learning mode entered by selecting Auto New Model.
Remote Remote Mode transfers control of the INTRAC to a remote
terminal.
It is selected with Menu Key 6 (Select Remote) from the Home
menu. Once in Remote Mode only four functions are available
from the INTRAC front panel. The emergency stop switch will
inhibit the antenna drive as normal, the alarms can be
displayed, Standby Mode can be entered and control can be
returned to the front panel again with Menu Key 6 (Select
Local).
USING IESS-412 OR NORAD DATA
The INTRAC-305 can make use of Intelsat IESS-412 11-
parameter or NORAD ephemeris information in two ways.
1. The information can be used by the INTRAC to
generate an INTRAC model of the satellites orbit.
This model is then be used by the INTRAC as it would
use a model it had learnt itself. This means that there
is not the need for the 24hr learning period. The model
is then updated as any INTRAC model would be.
2. The INTRAC can
be commanded to Program Track using positions
calculated from the ephemeris data.
The IESS-412 and NORAD data sets can be entered either
manually from the INTRAC front panel or from a PC. A stand
alone program is available for loading the data file from a PC.
This program can be used alone or in conjunction with the
Remote Control Terminal RCM-4.
A description of this program is given the appendices.
The IESS-412 data The IESS-412 data set comprises 21 fields of data :-
IESS Epoch Year range: 80 to 99 (20th century)
00 to 79 (21st century)
IESS Epoch Month range: 1 to 12
IESS Epoch Day range: 1 to 31
IESS Epoch Hour range: 0 to 32
IESS Epoch Minute range: 0 to 59
IESS Epoch Second range: 0 to 59