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3 modulator menu options and parameters – Comtech EF Data MDX420 SkyWire Manual User Manual

Page 44

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MDX420 SkyWire™ Satellite Network Gateway

Terminal Screens

MN-MDX420 Revision 6

6–6

6.2.4.3

Modulator Menu Options and Parameters

MODULATOR MENU

NETWORK
SPEC

{RAD MESH}
Allows the user to enter the desired Network specs.

IF FREQ (MHz)

{950 - 1750 MHz}
Allows the user to enter the Burst Modulator IF Output Frequency of the gateway in 1
Hz increments.

RF FREQ (MHz)

Displays the output frequency of the BUC also referred to as Satellite uplink
frequency. The user must enter the BUC LO and OSC SIDE BAND before using this
menu. The UPLINK FREQUENCY is a calculated measurement of both the BUC LO
and OSC SIDE BAND. Once the menus are entered correctly, the user can control
the uplink Frequency from this menu.

LO FREQ (MHz) Allows the user to enter the Local Oscillator frequency of the BUC LO in order for the

uplink frequency to be displayed correctly (refer to the BUC manufacturer’s
specifications).

SIDE BAND

{LOW SIDEBAND, HIGH SIDEBAND}
Allows the user to select the location of the BUC LO. The user must enter the location
of the BUC LO in order for the UPLINK FREQUENCY to be displayed correctly. The
BUC LO can be either higher or lower in frequency than the BUC output frequency. If
the BUC LO is higher in frequency then the user must enter HIGH SIDEBAND.

BUC 10 MHz
Ref

{ENABLED, DISABLED}
Allows the user to enable or disable the 10 MHz BUC reference clock.

BUC DC
SUPPLY

{ENABLED, DISABLED}
Allows the user to enable or disable the BUC supply voltage.

CARRIER CTL

{ON, OFF}
Allows the user to enable and disable the carrier.

POWER LEVEL
(dBm)

{0 to -25 dBm}
Allows the user to enter the Transmitter Power Level.