Hi Tom, Not sure if you have resolved this, but there is no jumper setting to override the attenuation on the KatADC. There are jumpers (J2, 3) that force the input switches (U30, 31) on for test purposes.
-F On Thu, Dec 20, 2012 at 10:57 PM, Tom Kuiper <kui...@jpl.nasa.gov> wrote: > I have two KATADCs, one each in ZDOC0 of two ROACH-1 boards (named roach1 > and roach2). It appears that the attenuator for input 0 of the KATADC in > roach2 is at 0 dB for whatever attenuation setting command is sent to it. > The other three inputs respond as I expect. I assume that this is some > kind of hardware failure but I thought I'd better check if there was some > jumper setting or control bit that I don't know about. > > With thanks and best regards, > > Tom > > -- Francois Kapp Sub-system Manager Digital Back End meerKAT Team founder: Team SKA Africa http://www.facebook.com/Team.SKA.Africa http://teamskaafrica.wordpress.com/ http://www.givengain.com/activist/87536/projects/3987/ SKA South Africa Third Floor The Park Park Road (off Alexandra Road) Pinelands 7405 Western Cape South Africa Latitude: -33.94329 (South); Longitude: 18.48945 (East). (p) +27 (0)21 506 7300 (p) +27 (0)21 506 7360 (direct) (f) +27 (0)21 506 7375 (m) +27 (0)82 787 8407
