Datapath Q Series, Instructions For Use Manual, Page: 72 / 104

Change Transceivers Q-Series
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4. Carefully detach the waveguides from the Circular Polarizer. While holding the OMT/polarizer,
gently pull the waveguide to create a small gap (approximately 1 mm) between waveguide and
OMT/polarizer.
5. Rotate the Circular Polarizer by 180° to the correct position (Right Hand or Left Hand).
6. Using the four (4) screws re-attach the Feedhorn to the Circular Polarizer.
7. Using the four (4) screws re-attach the waveguide to the Circular Polarizer.
8. Using the eight (8) screws, re-attach the waveguide to the RF Filter.
9. Using the eight (8) screws, re-attach the waveguide to the BUC.
Changing Ka-band Circular Polarization
Prerequisites

Find a clean working environment that will not pollute the RF components.

Make sure that the Power Supply is disconnected from the source.
To switch between Left Hand Circular Polarization (LHCP) and Right Hand Circular Polariza-
tion (RHCP), disconnect and rotate the OMT/polarizer on the Q-Series.
Tools:
Do! Disconnect the power to the Q-Seriesto avoid any damages to the equipment.
Warning! The RF gaskets (O-ring) or feed system may be damaged if you fail to fol-
low the instructions below.