GE L90 Instruction Manual page 89

3 HARDWARE 3.2 WIRING
Using an amplitude modulated receiver will also cause errors of up to 1 ms in metered synchrophasor values.
Using the IRIG-B repeater function in conjunction with synchrophasors is not recommended, as the repeater adds
a 40 s delay to the IRIG-B signal. This results in a 1° error for each consecutive device in the string as reported in
NOTE
synchrophasors.
3
GE Multilin L90 Line Current Differential System 3-27