Re: [casper] KATADC attenuators

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

[casper] KATADC attenuators

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

Re: [casper] KATADC attenuators (Tom Kuiper)

Tom, I suggest that you swap the KATADC boards between roach1 and roach2. Does the problem stay with roach2 or does it move with the KATADC board? Are you running exactly the same .bof file on both ROACHes? --Larry -- === Larry R.

Re: [casper] KATADC attenuators (Tom Kuiper)

On 12/20/2012 01:33 PM, Larry D'Addario wrote: I suggest that you swap the KATADC boards between roach1 and roach2. Does the problem stay with roach2 or does it move with the KATADC board? I'm pretty sure that I know how that would turn out. Unfortunately, I'm at home in West LA, 30 min with