AMT-70/AMT-73/AMT-75 Installation and Operation
4.2.5.2 RX Menu
The RECEIVE menu includes displays that allow the setting of programmable demodulator commands.
The first display, indicated as RX Menu 1, is entered when the cursor in the MAIN MENU is placed
over RX, and the ENTER key is depressed and released. Navigating between the set of RX Menus is
accomplished using the ARROW UP and DOWN keys – requiring two strokes to change between
menus.
For instance, for the IESS / 308-309 selection the top menu is as follows;
The first field (CODE=INTELSAT) is read/only a preset for the selection. All other fields are read/write.
To change a parameter, arrow to the parameter, hit ENT, then either ARROW UP or DOWN to the
desired value, and hit ENT again. Some parameters require the activation of the RECONFIGURE
function in TX Menu 6. To activate, ARROW DOWN to RECONFIGURE, hit ENT twice, and if the
parameter is accepted (within the range of settings as defined in paragraph 4.2.6) the msg. of “Current
settings saved” appears. If it is not accepted, a msg. of “Parameter out of range” appears.
To change a parameter, arrow to the parameter, hit ENT, then either ARROW UP or DOWN to the
desired value, and hit ENT again. Some parameters require the activation of the RECONFIGURE
function in TX Menu 6. To activate, ARROW DOWN to RECONFIGURE, hit ENT twice, and if the
parameter is accepted (within the range of settings as defined in Paragraph 4.2.6) the msg. of “Current
settings saved” appears. If it is not accepted, a msg. of “Parameter out of range” appears.
4.2.5.2.1 The available Settings and Parameters
The general RX menu below shows all the options relatives to all modes. Depending on the selected
mode some parameters may not be valid and hence will not be displayed as options.
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T X : S G N = O N I NPUT=EXTER N A L
O F F MPEG_ V I A _ EXT
I NTER N A L _ PRBS
MPEG_ V I A _ ASI
D I F F = O N VBR_M P E G _ ASI
O F F
3 0 8 C O D E = I N T E L S A T M O D U L A T O R = Q P S K
R A T E = 1 / 2 RSRATE=OFF
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General