Table of contents

    Description

    Fringe test in the standard GMVA PFB setup. The main goal is to demonstrate fringes with PV after repair of the DBBC2 system and lack of fringes in the c162a session.

    Particpating stations:

     

    station prc log comment
    On b163aon.prc b163aon.log ON had to leave the session after scan9
    Pv

    b163apv_scans7-9.prc

    b163apv_scans10-11.prc

    b163apv.log Joined observations at around UT 11:40 (30s into scan no0007) after weather has cleared up. Error in procedure (shifted flexmode by one channel) was fixed at UT 12:07 (scans 10 and 11).
    Mh b163amh.prc    
    Ys b163ays.prc b163ays.log Bad weather.

    Setup

    Scheduleftp://ftp.mpifr-bonn.mpg.de/outgoing/p459kri/3mmdec16/b163a.vex

    vex file was split into b163aPart1.vex (scans 7-9) and b163aPart2.vex (scans 10-11). The FREQ section of b163aPart1.vex was adapted to take care of the wrong flexmode channel selection for PV. Note that for Part1 the last channel contains nonsense for Pv.


    Results

    Fringes were found between all four participating stations

    Baseline RR LL
    On -Pv No0007_OnPV_RR.png No0007_OnPV_LL.png
    Pv - Mh No0007_MhPv_RR.png No0007_MhPv_LL.png
    Pv - Ys   No0007_YsPV_LL.png

    Notes

    1. Pv shows low amplitude and very broad delay rate peak in channel b. This was possibly due to the synthesizer of the line injection system accidentally being switched on during the observations. Prior to to the test observations a strong line had been injected into the beam to measure the phase stability and verify the receiver tuning. Should be verified during the next fringe test.
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    Attachments

    FileSizeDateAttached by 
     b163amh.prc
    No description
    837 bytes15:14, 20 Dec 2016rottmannActions
     b163aon.log
    No description
    172.15 kB14:59, 4 Jan 2017rottmannActions
     b163aon.prc
    No description
    773 bytes14:59, 4 Jan 2017rottmannActions
     b163apv.log
    No description
    79.04 kB15:13, 4 Jan 2017rottmannActions
    b163apv_scans10-11.prc
    No description
    1025 bytes12:41, 6 Jan 2017rottmannActions
     b163apv_scans7-9.prc
    No description
    701 bytes15:37, 4 Jan 2017rottmannActions
     b163ays.prc
    No description
    867 bytes11:16, 10 Jan 2017rottmannActions
     No0007_MhPv_LL.png
    No description
    112.05 kB11:12, 10 Jan 2017rottmannActions
     No0007_MhPv_RR.png
    No description
    110.66 kB11:11, 10 Jan 2017rottmannActions
     No0007_OnPV_LL.png
    No description
    102.27 kB11:12, 10 Jan 2017rottmannActions
     No0007_OnPV_RR.png
    No description
    97.84 kB11:10, 10 Jan 2017rottmannActions
     No0007_YsPV_LL.png
    No description
    107.19 kB11:12, 10 Jan 2017rottmannActions