RESEARCH CONCEPTS RC3000 Manual de usuario descargar pdf (Pagina 4)

3.2.2.3.x Additional LOCATE steps for positive identification

When the positive identification feature is enabled, additional steps will be added to the

normal LOCATE sequence. Initiate the LOCATE mode as usual and select the satellite that

you want to locate. As always lat/lon from the GPS and a heading "estimate" from the

compass will be obtained and the estimated pointing angles to the selected satellite will be

displayed. Press <ENTER> to proceed and then select the desired polarization as usual.

The following steps will then automatically occur to perform the positive identification

feature:

1) the list of signpost satellites/transponders (3.3.1.1.x) will be sorted to decide which are the

best signposts to first look for. NOTE: the satellite the user wants to eventually go to doesn't

have to be one of the signpost satellites.

2) the dish is moved in azimuth 90 degrees in order to characterize the

pitch and roll of the platform. This tilt information will later be used to

make a final adjustment on the polarization.

NOTE: the platform tilt characterization will be skipped if it is disabled via the TILT

configuration item in the AUTOPEAK configuration screen.

3) a scan is performed looking for lock on the frequency/symbol rate/FEC of

the highest priority signpost calculated in step # 2.

“SP:119.0W” will be displayed to show the longitude of the signpost that is being scanned.

“Additional messages” showing the sequence of events will be appended to the SP: string.

“MOVING TO START OF SCAN”

The RF value is sampled above and below the elevation of the arc of satellites in order to

determine an average noise floor.

“DETERMINING RF NOISE”

Elevation set for the signpost.

“MOVING TO SIGNPOST ELEVATION”

The DVB receiver is programmed with the frequency / symbol rate / FEC pattern for the

signpost.

“INITIALIZING DVB RCVR”

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RESEARCH CONCEPTS RC3000 Manual de usuario Pagina 4