6 monitor: cnc (carrier-in-carrier®), 6 monitor: cnc (carrier-in-carrier – Mocomtech CDM-QX User Manual

Page 114

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CDM-Qx/QxL Multi-Channel Satellite Modem with DoubleTalk™ Carrier-in-Carrier®

Revision 7

Front Panel Operation

MN/CDMQX.IOM

5–48

IMPORTANT

5.5.6

MONITOR: CnC (Carrier-in-Carrier

®

)

This read-only screen is operable only for a modulator/demodulator pair grouped
as a ‘modem’.

When MONITOR: CnC is selected, the appearance of the CnC screen depends on whether CnC is
locked or not locked:

If MONITOR: CnC is selected and CnC is not locked, the CnC screen appears as follows:

Carrier-in-Carrier (CnC)
is not locked

If MONITOR: CnC is selected and CnC is locked, the CnC screen appears as follows:

CnC:Dly=000,239μs Uf=+001.0k
Eb/No=12.0dB Ratio=+01dB

Per this example, note the following:

Dly

Delay of interferer in microseconds.

U

f

Frequency offset of interferer in kHz.

Eb/No

Eb/No estimate in dB.

Ratio

Interferer-to-desired carrier level ratio in dB.

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