We were measuring the green modulation depth in EX by looking at the transmitted power when locking the cavity on carrier or sidebands. To make the interpretation easier we first used the ifr to move the sidebands to exactly mid-fringe. With a length of 3994.472 m and a multiple of 650.5 we get a frequency of 24.410610 MHz. The ifr was set to +11 dBm for the measurement.

Here we report the measured RF levels. We used an Agilent N1914A with probe E4412A (S/N MY50270005). A zero check and calibration was performed before the measurement. An attenuator was added at the RF patch panel in the field rack between the balun and the cable driving the Pockels cell. As a comparison we list the attenuation values measured with the RF source at a frequency of 24.407079 MHz as well. We left the 12 dB attenuator installed and switched back to the RF source.