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P300H P300 Series Modem Installation and Operating Handbook Page 52
Tx OK since 08:25 4/6/97
Carr:Normal Demod
Detailed Transmit Traffic Status
Demod Stat: Eb/No: 8.5dB User BER: 4E-3
Offset: 18kHz, Level: -48dBm Stat
Detailed Demodulator Status
DETAILED TRANSMIT TRAFFIC STATUS
As with the Rx screen, this shows the date of the last interruption to the Transmit path, replaced with a more
detailed two line description of any traffic fault/warning condition if it exists. Pressing down again selects the
Demodulator Detailed Status.
DETAILED DEMODULATOR STATUS
This screen shows the estimated Eb/No. This is the composite Eb/No including framing overheads (as used
by INTELSAT when specifying modem performance figures). The BER is the final USER BER which is
being passed to the customer. The Offset is the measured error of the received carrier, relative to the
nominal position expected which is useful for determining the frequency drift due to the satellite and
frequency conversion equipment. The Level is the level of the desired carrier estimated by the
demodulator and is only shown if the Monitor/AGC option is fitted. From this screen the Down Arrow leads
back to the selected Status screen.
(Back to the selected Status Screen, `Config Summary` or `Tx & Rx Traffic Summary`)