<font face="Verdana, Arial, Helvetica" size="2">Eric Greisen updated #15875<br />
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<div style="margin-left: 40px;">Status: Closed (was: Open)</div>
<div style="margin-left: 40px;">Reply due: - Cleared - (was: 23 March 2020 04:34 AM)</div>
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Bandpass calibration<br />
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<div style="margin-left: 40px;">Ticket ID: 15875</div>
<div style="margin-left: 40px;">URL: <a href="https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/15875">https://help.nrao.edu/staff/index.php?/Tickets/Ticket/View/15875</a></div>
<div style="margin-left: 40px;">Name: Marcello Giroletti</div>
<div style="margin-left: 40px;">Email address: <a href="mailto:giroletti@ira.inaf.it">giroletti@ira.inaf.it</a></div>
<div style="margin-left: 40px;">Creator: User</div>
<div style="margin-left: 40px;">Department: AIPS Data Reduction</div>
<div style="margin-left: 40px;">Staff (Owner): -- Unassigned --</div>
<div style="margin-left: 40px;">Type: Issue</div>
<div style="margin-left: 40px;">Status: Closed</div>
<div style="margin-left: 40px;">Priority: Default</div>
<div style="margin-left: 40px;">Template group: Default</div>
<div style="margin-left: 40px;">Created: 19 March 2020 04:34 AM</div>
<div style="margin-left: 40px;">Updated: 19 March 2020 10:13 AM</div>
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<p>It looks like the CookBook remark is incorrect. To use scalar averaging of the visibilities one sets BPASSP(8) to 1. But that will still have phase. To do amplitude only, one uses the autocorrelation data by setting BPASSP(1) to 1. BPASSP(8) = 1 is not really a good idea.</p>
<p>We are working from home at rather low efficiency. Stay well.</p>
<p>Eric Greisen</p>
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