Marc, Michael

We checked again DDS3 outputs.

CH0 after amplifier provide the expected 6dBm but CH1, CH2 and CH3 still provide -40dBm after amplifiers while their output directly from the board is at -8.5dBm.

We removed connectors, swapped cables but still had this issue. We suspect that these 3 amplifiers are broken.

We will purchase new ones and use in the meantime the amplifier rack.