High noise issue

[eehealy]

I am seeing high noise when detectors are biased. Both AMCs are acting up. Here is a plot of AMC 0 with detectors superconducting and AMC 1 with detectors biased (same thing happens with AMC 0 has biased detectors):

I looked at some individual resonator channels and seeing some weird and bad curves.

I've tried hammering a couple times. What other debugging tricks would the Tsars recommend? Thanks!

[msilvafe]

Hi @eehealy if you're currently in this state can you run a find_freq for each of the bands in AMC1 (4-7) and show what they look like here? Also check these registers:

for bay in [0,1]:
    print(f'jesd_rx bay {bay} {S.get_jesd_rx_enable(bay)}')
    print(f'jesd_rx_valid bay {bay} {S.get_jesd_rx_data_valid(bay)}')
    print(f'jesd_tx bay {bay} {S.get_jesd_tx_enable(bay)}')
    print(f'jesd_tx_valid bay {bay} {S.get_jesd_tx_data_valid(bay)}')

And paste the output here.

[eehealy]

here's an example of a find_freq

[ 2025-04-08 18:49:04 ]  No tone_power given. Using value in config file: 15
[ 2025-04-08 18:49:04 ]  Sweeping across frequencies 6500.0MHz to 7000.0MHz
[ 2025-04-08 18:49:04 ]  Working on band 5
[ 2025-04-08 18:49:33 ]  serial find freq complete ; etaScanInProgress = 0
(array([[0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.],
        ...,
        [0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.]]),
 array([[0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        ...,
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j]]))
        

looks very empty

[eehealy]

register check:

jesd_rx bay 0 1011
jesd_rx_valid bay 0 1011
jesd_tx bay 0 975
jesd_tx_valid bay 0 975
jesd_rx bay 1 1011
jesd_rx_valid bay 1 1011
jesd_tx bay 1 975
jesd_tx_valid bay 1 975

[eehealy]

jackhammer dump: Dumping s3 state to /data/logs/17441/1744138233/rogue_state_s3.yml

[msilvafe]

here's an example of a find_freq

[ 2025-04-08 18:49:04 ]  No tone_power given. Using value in config file: 15
[ 2025-04-08 18:49:04 ]  Sweeping across frequencies 6500.0MHz to 7000.0MHz
[ 2025-04-08 18:49:04 ]  Working on band 5
[ 2025-04-08 18:49:33 ]  serial find freq complete ; etaScanInProgress = 0
(array([[0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.],
        ...,
        [0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.],
        [0., 0., 0., ..., 0., 0., 0.]]),
 array([[0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        ...,
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j],
        [0.+0.j, 0.+0.j, 0.+0.j, ..., 0.+0.j, 0.+0.j, 0.+0.j]]))
        

looks very empty

Do you have plots? Sometimes output like this look deceiving bc the ends of the bands are always 0s

[eehealy]

oh yes didn't realize it was these tops of plots:

they all look normal to me

[eehealy]

Any other suggestions @msilvafe or @tpsatt? Sorry to push, just hoping to get things set up for a bath ramp overnight. Thanks!