34
Installing the antenna and radio assembly
1037749-0001 Revision F
Changing polarization
Follow the instructions in this section only if you need to change transmit circular
polarization from LHCP to RHCP or from RHCP to LHCP.
To change the polarization reposition the polarizer as follows:
1.
Remove the two-piece round clamp that secures the polarizer to the TRIA by
loosening the two Allen screws (with springs) that hold it together. (The clamp
is shown in Figure 18 on page 35.)
2.
Separate the polarizer from the TRIA and reposition it so the marker aligns
with L for LHCP or R for RHCP. Refer to Figure 17.
Note:
Make sure the O-ring in the circular groove in the end of the polarizer
remains in place.
Figure 17: Notches and key for changing the polarization setting
Attaching the clamp
Re-attach the clamp that secures the polarizer to the TRIA:
Attach the clamp exactly as stated in the following steps. Failure to do so could
allow moisture to accumulate inside the TRIA and/or feed horn, causing damage to
the radio.
1.
Make sure the polarizer is in the correct position (L or R).
