similarly as for TMSx few weeks ago, some of SRM and SR3 osem signals were suspiciously noisy (have been for few days), and were showing ~1700Hz oscillations. As Richard suspected, power recycling the AA chassis of those osems fixed the pb. attached is a spectra of one of the osem for SR3 and SRM before (blue/red) and after (brown/green) rebooting the chassis.