Change, Rx, Demod Aupc Menu; Change, Rx, Esc/Aux/Ba Menu; Change, Rx, Rx=Tx Menu - Paradise Datacom P300 Series Installation & Operating Handbook

P300 series satellite modems (including p310 l-band and turbo fec options)
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When operating in this unusual situation without FEC AND without Framing, if the Rx carrier is
not exactly on frequency, then it is possible for the Demod to lock onto a `false lock` (and not be
able to detect it as false as there is no FEC or framing). In this situation you can either:
1. Use Custom Sweep to narrow the sweep range to avoid the false lock, but be careful not to
narrow it too much so it avoids the true carrier lock as well. DO NOT increase the sweep range,
as this will guarantee to bring false locks within the Demod sweep.
2. Preferably, adjust the Rx IF Frequency to account for the true Rx carrier frequency (including
offsets), then adjust the sweep range to 50% of the `Normal` value. This will allow the Demod to
re-acquire the carrier (even with further minor variations in Rx carrier frequency) without it
sweeping into a false lock. If you are attempting to do this, when you have the Demod correctly
locked you can read the current value of offset frequency from the `Demodulator Detailed
Status` screen in order to adjust the Rx IF frequency.

6.7.15 Change, Rx, Demod AUPC Menu

This screen provides the option to enable or disable the Remote Reporting facility used with AUPC to
enable a distant end modem to report it's Eb/No and BER back to the other end of the satellite link. The
facility can be either On or Off. See AUPC in section 8.11 on page 156.

6.7.16 Change, Rx, ESC/AUX/BA Menu

See Change, Tx/Rx, Modulator, ESC/Aux/BA Menu on page 79

6.7.17 Change, Rx, RX=TX Menu

This is described in detail under the initial note on the Rx=Tx function in para 6.7 on page 89
Change, Rx, Rx=Tx Menu
The receive path operates fully independently from the Tx path
Many of the Rx parameters follow the Tx, which greatly simplifies the
configuration for duplex links. When enabled only the Insert Mux timeslot
selection, Rx Clocking & Buffer Size, and IF Frequency & Sweep control
require setting independently of the Tx path.
Note: Temporarily setting Rx=Tx is a convenient way of copying the Tx configuration to the Rx as when
disabled again the Rx path keeps the Tx values, and does not return to the old Rx values.
P300H
P300 Series Modem Installation and Operating Handbook
Set Rx=Tx, so most Rx parameters track Tx: [?]
1=Off 2=On
Page 98

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