VISLINK
Flydrive 120-150 Antenna 10
3. OPERATING PROCEDURE
See Section 5 for the relevant assembly images.
3.1 ANTENNA ASSEMBLY – FLYAWAY CONFIGURATION
Open up the main antenna case.
If the antenna was stowed in its sub 32kg configuration (see section 3.4), remove the
four elevation arm fasteners from the main azimuth base. If the antenna was stowed in
its quick deployment configuration then go to the 6th bullet point. See section 3.4 for the
different case configurations.
Remove the reflector centre section from the segment case and place on top of the
azimuth base, in front of the azimuth cable interface. Connect up the cables from the
elevation axis to the azimuth cable interface panel (elevation motor cable, inclinometer
cable, elevation sensor cable, feedarm limit switch cable and the compass cable - when
supplied).
Place the reflector centre section onto the turntable using the dowels to aid location.
Care should be taken to make sure that the lower feedarm is released when locating the
reflector centre section. If necessary the lower feedarm can be released by gently
pushing up the two retaining clips on the side of the feedarm and lifting the feedarm.
Also ensure that the elevation sensor wire does not get trapped under the pivot leg.
Replace the four elevation axis bolts.
Place the main antenna case lid on the ground and place the main antenna base back
on top of the case.
Fasten the latches that secure the base onto its case.
Fit the front and rear antenna stabilising legs and adjust so that the antenna base is
level.
Connect the power and control cables to the main base cable interface panel.
Repetitively select the deploy command from the front panel of the ACU. On each deploy
command the elevation will raise up a few degrees then stop. Continue the deploy
commands until the elevation axis continues moving up at a higher rate once the
elevation stow sensor has been cleared.
Connect the upper feedarm to the lower feedarm.
Fasten the cartridge to the upper feedarm.
Fit the flex twist waveguide to the lower feedarm and cartridge RF ‘in’ port using the
quick release flange.
Place the flex twist waveguide over the waveguide support half way up the upper
feedarm.
Connect the polarisation motor control cable to the azimuth cable interface panel.
Connect the L band cable between the LNB and azimuth cable interface panel. Care
should be taken to pass both cables over the feedarm as shown. Use the Velcro straps
to hold the polarisation motor cable and L band cable to the flex twist waveguide and
other cables.
On the Flydrive 120, fit the three outer reflector segments, fitting the two side segments
first and the top segment last. On the Flydrive 150, fit the top centre section first, then
the lower outer sections, then the upper outer sections.
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