Since the calibration group is moving to run individual calibration for the L1, L2, and L3 actuators, in addition to the PCAL lines, we are adding an additional line frequency.

The following is a result of suggestions by Evan Goetz in LHO alog 44892, and some other constraints.

The LHO lines will become:
L1 (UIM) line: 16.7 Hz
L2 (PUM) line: 17.3 Hz
PCAL line: 17.9 Hz
L3 (TST) line: 19.1 Hz

PCAL sensing line: 433.7

Note this is slightly different from Evan's proposal after swapping 15.1 Hz and 17.3 Hz between LHO and LLO.

For comparison, LLO's is changing to:
L1 (UIM) line: 15.1 Hz
L2 (PUM) line: 15.7 Hz
PCAL line: 16.3 Hz
L3 (TST) line: 16.9 Hz

PCAL sensing line: 434.9 Hz

See LLO alog 42720