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FPT Test Jan 2024

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    Version from 20:45, 17 Jan 2024

    This revision modified by rottmann (Ban)

    System schematics

    FPT_TEST_PV.png

    Setup 86 GHz

    Target band: 86.000 - 88.024

    1st LO:     93.0 GHz

    RF: LSB 5-9 GHz

    2nd LO (DBBC3): 9.048 GHz

    Sky freq:    83.952 - 88.048 GHz

     

    sky 83952 => 86000 =>
    after 1st DC 9048 7000
    after 2nd DC 0 2048

    => DBBC3 should use filter1= 2000-4000

    Setup 230 GHz

    EHT target band: 214.052 - 216.100

    1st LO:    221.052 GHz

    RF: LSB 5-9 GHz

    2nd LO (DBBC3): 9.048 GHz

    Sky freq:    212.004 - 216.100 GHz
     

    sky 212.004 - 214.052 214.052 - 216.100
    after 1st DC 9.048 - 7.0 7.0 - 4.952
    after 2nd DC 0 - 2.048 2.048 - 4.096

     => DBBC3 should use filter1 = 2000-4000

    DBBC3 setup

    • load normally the OCT_120 firmware
    • run dbbc3ctl.py and do check system all

    Modules & Recorders

    recorder2

    slot 1: EHT%0017

    slot 2: EHT%0018

    recorder3

    slot 1: EHT%0019

    slot 2: EHT%0020

     

    module setup (do on both recorders)

    group=new:12
input_stream=add:stream1:vdif:8224:50:42:eth3:::1
input_stream=add:stream2:vdif:8224:50:42:eth5:::2
input_stream=commit
group=open:12

    Line injection test (Nov 10th)

    230 GHz signal chain

    Line freq: 5810 MHz (corresponds to 215.2 GHz sky)

    connected to boards A and B (corresponding to IF2 and IF4)

    Line is expected to appear at 2248 MHz in base band and at 200 MHz in the filtered band

    230.png

    86 GHz signal chain

    Line freq 6800 MHz (corresponds to 86.2 GHz sky)

    connected to boards C and D (corresponding to IF1 and IF3)

    Line is expected to appear at 2248 MHz in base band and at 200 MHz in the filtered band

    86.png

    Action

    • Change GMVA modules to recorder1 (SS)
    • Insert new modules to recorders 2 & 3 (SS)
    • update google sheet  (SS)

    Version as of 20:45, 17 Jan 2024

    This revision modified by rottmann (Ban)

    System schematics

    FPT_TEST_PV.png

    Setup 86 GHz

    Target band: 86.000 - 88.024

    1st LO:     93.0 GHz

    RF: LSB 5-9 GHz

    2nd LO (DBBC3): 9.048 GHz

    Sky freq:    83.952 - 88.048 GHz

     

    sky 83952 => 86000 =>
    after 1st DC 9048 7000
    after 2nd DC 0 2048

    => DBBC3 should use filter1= 2000-4000

    Setup 230 GHz

    EHT target band: 214.052 - 216.100

    1st LO:    221.052 GHz

    RF: LSB 5-9 GHz

    2nd LO (DBBC3): 9.048 GHz

    Sky freq:    212.004 - 216.100 GHz
     

    sky 212.004 - 214.052 214.052 - 216.100
    after 1st DC 9.048 - 7.0 7.0 - 4.952
    after 2nd DC 0 - 2.048 2.048 - 4.096

     => DBBC3 should use filter1 = 2000-4000

    DBBC3 setup

    • load normally the OCT_120 firmware
    • run dbbc3ctl.py and do check system all

    Modules & Recorders

    recorder2

    slot 1: EHT%0017

    slot 2: EHT%0018

    recorder3

    slot 1: EHT%0019

    slot 2: EHT%0020

     

    module setup (do on both recorders)

    group=new:12
input_stream=add:stream1:vdif:8224:50:42:eth3:::1
input_stream=add:stream2:vdif:8224:50:42:eth5:::2
input_stream=commit
group=open:12

    Line injection test (Nov 10th)

    230 GHz signal chain

    Line freq: 5810 MHz (corresponds to 215.2 GHz sky)

    connected to boards A and B (corresponding to IF2 and IF4)

    Line is expected to appear at 2248 MHz in base band and at 200 MHz in the filtered band

    230.png

    86 GHz signal chain

    Line freq 6800 MHz (corresponds to 86.2 GHz sky)

    connected to boards C and D (corresponding to IF1 and IF3)

    Line is expected to appear at 2248 MHz in base band and at 200 MHz in the filtered band

    86.png

    Action

    • Change GMVA modules to recorder1 (SS)
    • Insert new modules to recorders 2 & 3 (SS)
    • update google sheet  (SS)