This loads a font easier to read for people with dyslexia.
This renders the document in high contrast mode.
This renders the document as white on black
This can help those with trouble processing rapid screen movements.

Re: Radio Astron VLBI

From: <Chris.Phillips_at_email.protected>
Date: Tue, 9 Apr 2013 00:01:27 +0000

Hi Stuart,

Are you able to repeat this but put the tone and the band 1/4 point (ie 4 MHz from band edge). A tone at band centre does not confirm the USB/LSB of the band.

Cheers
Chris

On 09/04/2013, at 9:10 AM, Stuart Weston wrote:

>I have this morning sent test tones.
>
>I see peaks in bands where I expect.
>
>Tone: 1660GHz, I see in Chls 2 & 4 in centre of band
>Tone: 1676GHz, I see in Chls 1 & 3 in centre of band
>
>There appears to be some leakage integrating for ~10s:
>
>For 1660 I see a small peak in Chl 1
>For 1676 I see a v.small peak in Chl 2
>
>I have a tone of ~8db. Drop the tone to 5db and no leakage/peak in other bands as above for 10s integration.
>
>Stuart Weston
>
>
>Mobile: 021 713062
>
>Skype: stuart.d.weston
>Email: stuart.weston_at_aut.<!--nospam-->ac.nz
>
>http://www.atnf.csiro.au/people/Stuart.Weston/index.html
>
>Software Engineer
>Institute for Radio Astronomy & Space Research (IRASR)
>School of Computing & Mathematical Sciences
>Faculty of Creative Technologies
>Auckland University of Technology, New Zealand.
>
>http://www.irasr.aut.ac.nz/
>
>From: Hayley Bignall [hbignall_at_gmail.<!--nospam-->com]
>Sent: 08 April 2013 19:40
>To: Dr Michael Bietenholz
>Cc: Chris Phillips; VLBI observers; Jamie McCallum; Stuart Weston; Tim Natusch
>Subject: Re: Radio Astron VLBI
>
>Hi guys,
>
>It occurred to me that I could have added a file grab for fringe check to the main schedule as well.. I haven't done this but possibly could still do it for Hart tonight. Especially as Hart has one (ten minute) scan with ATCA and Hobart at 18:50, then a long gap before the spacecraft segment at 19:20 UT.
>
>Anyway let's see how the fringe test goes I guess..
>
>Cheers,
>
>Hayley
>
>
>
>On 8 April 2013 15:12, Dr Michael Bietenholz <michael_at_hartrao.<!--nospam-->ac.za> wrote:
>Hi Chris
>
>
>Sorry gusy, I may have screwed up the fringe check at Hart - I
>mistakenly loaded the main schedule (rather than the fringe-check one),
>and then noticed that nothing was happening for 6 hours
>so I figured it out and loaded the fringe-check schedule. However,
>I realize now that I never loaded the fringe check *proc* file,
>so the Hart setup may have been wrong.
>
>I did load the right procedure & schedule for the actual run later
>on yesterday.
>
>michael
>
>>> On 8 April 2013 12:23, <Chris.Phillips_at_csiro.<!--nospam-->au> wrote:
>>>
>>>>> Hi Guys
>>>>>
>>>>> I have looked more at last nights data - I still cannot get fringes to
>>>>> Ww,Hobart,Hart or ATCA at C-band. Either the setup is not what I expect
>>>>> or
>>>>> something is seriously wrong at lots ok the observatories.
>>>>>
>>>>> For those you can please before the fringe test tonight try turning on a
>>>>> test tone and record some data and verify it appears where you expect.
>>>>> Best
>>>>> to try a tone at a few difference frequencies at different locations
>>>>> within
>>>>> the bands.
>>>>>
>>>>> Also check formatter time offsets etc.
>>>>>
>>>>> Cheers
>>>>> Chris
>>>>>
>>>>>
>>>
>
>
>
>
Received on 2013-04-09 10:03:09