Comtech EF Data MCED-100 - Manual (Page 85)

MCED-100 MetaCarrier Embedding Device Revision 1
Ethernet-based Remote Product Management MN-MCED100
6–19
• Set Time (hh:mm:ss) – Use HH:MM:SS format (where HH = hour [00 to 23], MM = minutes
[00 to 59], and SS = seconds [00 to 59]) to enter a time.
• Set Date (dd/mm/yy) – Use the European time format DD/MM/YY (where DD = day [01 to
31], MM = month [01 to 12], and YY = year [00 to 99]) to enter a date.
Enter the desired time and date values. Click [Submit] to save.
Test Control
The test controls are intended for MetaCarrier debug operations only and
should not be used unless instructed by Comtech EF Data Technical Support.
Unintended operation or interference could result if these controls are used.
• Frequency Offset – Provides ability to offset the MetaCarrier from the center frequency of
the carrier.
• Power Ratio – Provides the ability to modify the power level of the MetaCarrier.
• Test Mode – The following test modes must be entered from a normal operating condition,
in which the MCED‐100 is transmitting a MetaCarrier under a carrier from an external
modulator.
Use the drop‐down menu to select this operating mode as follows:
o Normal Mode – This mode clears any test modes, and places the unit back into an
operational state.
o Tx CW – This test mode forces transmission of a pure MetaCarrier (unmodulated).
o Tx Alt 1/0 – Use this mode to check the carrier suppression of the external modulator.
This test mode forces transmission of a MetaCarrier modulated with an alternating
1,0,1,0 pattern, at 224kcps. This causes two discrete spectral lines to appear, spaced at ±
½ the symbol/chip rate, about the carrier frequency.
o PN 224ksps – This test mode generates a pseudo‐random number sequence in place of
the data fields in the MetaCarrier. This MetaCarrier is transmitted at 224ksps.
Click [Submit] to save these settings.
To reset the parameters in this section back to their default values (i.e., normal operation), click
[restore to default value].
External GPS Serial Port
Configure the serial port dedicated for use with the optional GPS function.
• Baud Rate – Use the drop‐down menu to select the applicable baud rate. Values of 2400,
4800, 9600, 19200, 38400 and 57600 baud are available.