Greetings everyone!
Steve and I are trying to get the SETI spectrometer ready to go to
Goldstone. We put it in its (hopefully) final configuration but are not
getting meaningful data now. I imagine that it has something to do with
this self-test output.
Reading SNAP_CT_IN
CH ----- unsignLSB --- unsignMSB --- signLSB - signMSB - ReFFT -- ImFFT
0 261679 261553 -465 -591 0.000000 0.000000
1 261960 259 -184 259 0.000000 0.000000
2 359 261981 359 -163 0.000000 0.000000
3 565 261923 565 -221 0.000000 0.000000
4 261951 257 -193 257 0.000000 0.000000
5 316 262119 316 -25 0.000000 0.000000
6 309 262016 309 -128 0.000000 0.000000
7 527 262129 527 -15 0.000000 0.000000
8 647 265 647 265 0.000000 0.000000
9 262005 262059 -139 -85 0.000000 0.000000
10 631 118 631 118 0.000000 0.000000
11 635 225 635 225 0.000000 0.000000
12 520 251 520 251 0.000000 0.000000
13 262127 39 -17 39 0.000000 0.000000
14 50 261936 50 -208 0.000000 0.000000
15 380 135 380 135 0.000000 0.000000
Reading SNAP_CT_OUT
CH ----- unsignLSB --- unsignMSB --- signLSB - signMSB - ReFFT -- ImFFT
0 0 264 0 -2 0.000000 0.000000
1 0 264 0 -2 0.000000 0.000000
2 0 264 0 -2 0.000000 0.000000
3 0 264 0 -2 0.000000 0.000000
4 0 264 0 -2 0.000000 0.000000
5 0 264 0 -2 0.000000 0.000000
6 0 264 0 -2 0.000000 0.000000
7 0 264 0 -2 0.000000 0.000000
8 0 264 0 -2 0.000000 0.000000
9 0 264 0 -2 0.000000 0.000000
10 0 264 0 -2 0.000000 0.000000
11 0 264 0 -2 0.000000 0.000000
12 0 264 0 -2 0.000000 0.000000
13 0 264 0 -2 0.000000 0.000000
14 0 264 0 -2 0.000000 0.000000
15 0 264 0 -2 0.000000 0.000000
I got the same behavior (constant values after the corner turner) before
and after power cycling everything (even the computer). Does anyone
have any suggestions about where to go from here?
Thanks and regards
Tom