RESEARCH CONCEPTS RC3000 Instrukcja Użytkownika Pobierz pdf (Strona 5)

RC3000 Antenna Controller Appendix TLE Two Line Element Tracking

TLE-5

NOTE: if the track signal source (3.3.1.3.12) is set to “NONE”, the user will need to identify that the

antenna is pointing at the satellite by some other means.

After finding a signal strength indication, a peaking function will perform an operation very similar to a

step track movement in order to position the dish more precisely on the satellite.

3.2.2.7 Position

If the ephemeris tracking option is present, the POSITION screen will also display information about the

pitch and roll of the antenna platform. For the RC3000, pitch and roll is defined with respect to the local

horizontal plane.

Pitch is considered rotation about the platform’s lateral axis (from –90 degrees azimuth to +90 degrees

azimuth). Positive pitch values indicate a “nose up” (0 degrees azimuth higher than 180 degrees

azimuth) orientation.

Roll is considered rotation about the platform’s longitudinal axis (from 180 degrees azimuth to 0 degrees

azimuth). Positive roll values indicate a “right wing up” (90 degrees azimuth higher than -90 degrees

azimuth) orientation.

L/L:38°56N 94°44W GPS POSITION

ANT BEARING:225.0 FLUXGATE NOT SAVED

P: -1.7 R: 3.1 <5>TILT <4>SAVE

<1>LAT/LON <2>HEADING <3>AUTO <MODE>EXIT

P: -1.7 R: 3.1 <5>TILT

The P: field displays the current calculated pitch and the R: field displays the current roll.

If pitch and roll have not been calculated the fields will display “*****”. Whenever a position component

(lat/lon or heading) is changed, the current pitch and roll will be considered invalid and the “*****”

displayed.

Pressing the “5” key will put the controller into TILT mode. TILT mode allows for initiating tilt calculations

and is mainly intended as an aid in checking calibration.

3.2.2.7.4 TILT

The TILT mode automatically moves the antenna, gathers elevation data (from the inclinometer and

resolver) and calculates apparent pitch and roll of the platform.

AZIM: 0.0 ( ) TILT

ELEV: -61.7 ( )

P1: P2: PITCH: ROLL:

<4>START TILT

The movement sequence is similar to that described for the TILT ESTIMATE section of the LOCATE

movement.

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RESEARCH CONCEPTS RC3000 Instrukcja Użytkownika Strona 5