Paradise P300 Monitor, Aupc Menu, Distant Eb/No9.7dB Target10.±0.5dB Delta power+1.5dB, Modem/BUC

6.13.5Monitor, AUPC Menu

This screen is only available when the AUPC feature is set to `Maintain Eb/No` or `Self Monitor` (refer to

AUPC in section 8.11.1 on page 154) when the AUPC is controlling the Tx power. The first line displays either `Distant Eb/No` or `Self monitor` respectively, the lower line shows the target Eb/No along with its tolerance window, and the current AUPC delta power. If the delta power reaches the preset limit either up or down, then it is prefixed with either a or arrow indicating that the power limit has been reached.

Most of this is self explanatory except forƒthe„slew rate limit which limits the rate of change of Tx power (it moves on 0.1dB steps at the appropriate rate to match the given slew rate). A slew rate limit of zero however indicates `no limit`, and step changes in power will be made on the Tx output.

Distant Eb/No:9.7dB

Target:10.±0.5dB Delta power:+1.5dB

Monitor, AUPC Menu 9

The down arrow indicates that a subsequent screen (shown below) shows the limits the AUPC has been constrained to work under:

Limits: +3.5 -1.0dB Slew:10dB/min

Comms lost action:Nominal

Monitor, AUPC Limits Menu 8

6.13.6Monitor, BUC Menu

This menu is only available on the P310 L-Band modem. It provides information on the current BUC connected.

BUC Type: Std Ku

Modem/BUC Mode: Terminal

	Monitor, BUC Menu	9
BUC Type	This may be either: None, Other, Std Ku, Ext Ku, Std C, INSAT C, or PALAPA C

If the BUC is from Paradise Datacom and the modem is fitted with the FSK communication option, then significantly more information is available on this and subsequent screens. On this screen:

Modem/BUC
Mode	This may be either “Independent” where the BUC may be controlled from the
	modem front panel or “Terminal”, where the modem control the BUC and the
	modem RF output power to maintain a fixed power level at the BUC output (taking
	out temperature induced variations in the cable etc)

Subsequent screens (those marked * only visible when the BUC is FSK capable) include:

*The BUC communications status & Address, Temperature & PLL lock status

*The BUC Set power, the Measured power, set output status (on/off) and attenuator range & value

*The FSK generator/receiver status, true output status (on/off)

The DC & 10MHz ref supply to the BUC on/off setting, measured current and current low/high trip limits

P300H P300 Series Modem Installation and Operating Handbook Page 118