Polarisations

The following examples show the correspondence between the VIS designations and engineering terms.

VIS code	Engineering	Frequency	Polarisation
AA	A1A1	1	XX
AB	A1B1	1	XY
BA	B1A1	1	YX
BB	B1B1	1	YY
CC	A2A2	2	XX
CD	A2B2	2	XY
DC	B2A2	2	YX
DD	B2B2	2	YY