Change, Tx, Modulator, Aupc Mode Menu; Change, Tx, Modulator, Aupc, Max Menu - Paradise Datacom P300 Series Installation & Operating Handbook

6.6.18 Change, Tx, Modulator, AUPC, MODE Menu

Change, Tx, Modulator, AUPC Mode Menu

NOTE: You probably need permission from the satellite operators to use AUPC unless you have a
blanket power budget which you may use as you see fit.
The modes are as follows:
The modem disables the Auto Uplink Power Control, the Tx power will not
adjust dynamically. Any AUPC positive or negative delta power adjustment to
the Tx output power It is removed instantaneously (ie a Tx power step). Any
bandwidth within the ESC channel used by the AUPC It is released back for
ESC usage.
The local modem utilises the async ESC channel between the local and distant
modems to regularly collect Eb/No and BER data from the distant modem. This
can be displayed with
AUPC mode and the Tx power will not adjust dynamically, it simply allows local
monitoring (and logging) of distant performance.
This It is full AUPC mode. As with
collect Eb/No information from the distant modem, but in addition it varies the
Tx power within the constraints provided to maintain a specified distant Eb/No.
This It is ONLY used in Tx only applications (typically point to multipoint) to
attempt to maintain the Eb/No at (multiple) Rx only stations. It requires the
modem to be able to receive the its own carrier via satellite (not by any form of
IF loop). In operation it monitors the local Rx Eb/No and adjusts the local Tx
power to keep this local Eb/No constant. This means it can compensate for
atmospheric changes which affect the Tx signal to the satellite, and LOCAL
atmospheric changes affecting the Rx signal from the satellite. If however (as It
is common) there are multiple Rx terminals over a wide geographical area, then
different atmospheric conditions over each terminal will still cause a variation in
the Eb/No for each terminal.
Note: See AUPC in section 8.11 on page 156 regarding the async ESC channel requirements in order
for local modem to distant modem communications in order for modes `
operate. Note also that the distant modem must be set for remote reporting of Eb/No with
.

6.6.19 Change, Tx, Modulator, AUPC, MAX Menu

Change, Tx, Modulator, AUPC, Max Menu
P300H P300 Series Modem Installation and Operating Handbook
Set AUPC Mode: [Off]
1=Off 2=Mon dist' 3=Maint' EbNo 4=Self mon
Set AUPC max positive delta power
[3.5dB] (0-25.0dB) ??.?dB (Yes)
. This It is not an `active`
above it uses the ESC channel to
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