Re: ToO for Wednesday (VX017A)
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From: <shoriuch_at_email.protected>
Date: Wed, 29 May 2013 09:27:40 +1000
By the way, do we turn off the automatic gain control on DAS for this
experiment?
Cheers,
Shinji.
On 28 May 2013 16:40, shinji horiuchi <shoriuch_at_gmail.<!--nospam-->com> wrote:
>Cormac,
>
>I guess SgrA* at L-band is still weaker than ambient load. DAS for 64MHz
>profile for L-Band looks fine with the level between sky and ambient load.
>
>As I told you in the separate email, 70m is only available for limited
>time, i.e. 10:00-13:00 and 17:45-19:30, we should take some lisk for Tid.
>The antenna is yet to return to be operational and I won't be onsite to run
>this, leaving Phil Pope in ops team to run this.
>
>Cheers,
>Shinji.
>
>
>On 28 May 2013 15:50, John Reynolds <John.Reynolds_at_csiro.<!--nospam-->au> wrote:
>
>>Shinji,
>>
>>
>>I would just play with manual attenuators to get the signal within the
>>>right range.
>>>
>>
>>That could be twice every 6 minutes, as we switch between the pulsar and
>>the cal. Be nice to have some help if you're doing this.
>>
>>On the other hand the DAS might just be able to cope with the range,
>>though SgrA* is the strongest source in the sky other than the Sun so I'm
>>guessing maybe not.
>>
>>Cheers,
>>John R
>>
>>
>>On Tue, 28 May 2013, shinji horiuchi wrote:
>>
>>I would just play with manual attenuators to get the signal within the
>>>right range.
>>>
>>>Cheers,
>>>Shinji.
>>>
>>>
>>>On 28 May 2013 14:27, James Lovell <Jim.Lovell_at_utas.<!--nospam-->edu.au> wrote:
>>>
>>>Some programmable attenuators would be nice at Tid. There were some
>>>>ready
>>>>to install when I was there. Leigh Cameron even got them working but
>>>>they
>>>>caused RFI (or something) so had to be removed.
>>>>
>>>>Maybe if Shinji could plumb the signal though the MkIV rack as this has
>>>>programmable attenuators that can be controlled from the Field System.
>>>>
>>>>Or perhaps better to record to Mark5 and have a couple of extra
>>>>procedures
>>>>that are called after source changes to adjust the attenuation? Then no
>>>>re-wiring is needed.
>>>>
>>>>Cheers,
>>>>Jim
>>>>
>>>>
>>>>
>>>>
>>>>On 28/05/2013, at 2:14 PM, John Reynolds <John.Reynolds_at_csiro.<!--nospam-->au>
>>>>wrote:
>>>>
>>>>Cormac,
>
>some Tid time has just become available for vx017a, so I have updated
>>
>
>Should be fun maintaining acceptable levels when switching on and off
>
>>>>SgrA, something that promises to be interesting at Parkes as well.
>>>>
>
>Cheers,
>John R
>
>On Tue, 28 May 2013, Cormac Reynolds wrote:
>
>hi,
>>
>>some Tid time has just become available for vx017a, so I have updated
>>the schedule (and redistributed). Please make sure you are using the
>>vex file with 'PI revision number: 2.0'. Some of the scan timings have
>>changed to incorporate the slower moving antenna.
>>
>>thanks,
>>Cormac.
>>
>>On 27 May 2013 18:40, Cormac Reynolds <c.reynolds_at_curtin.<!--nospam-->edu.au>
>>wrote:
>>
>>>hi all,
>>>
>>>I have created a schedule for Wednesday's LBA ToO. Schedules have
>>>been
>>>distributed to the telescopes and the wiki pages are in place:
>>>http://www.atnf.csiro.au/vlbi/**wiki/index.php?n=LBAMay2013.**VX017A<http://www.atnf.csiro.au/vlbi/wiki/index.php?n=LBAMay2013.VX017A>
>>>
>>>Regards,
>>>Cormac
>>>
>>>--
>>>------------------------------**----------------------
>>>Cormac Reynolds
>>>Phone: +61 8 9266 3785
>>>Fax: +61 8 9266 9110
>>>email: c.reynolds_at_curtin.<!--nospam-->edu.au
>>>------------------------------**----------------------
>>>
>>
>>
>>
>>--
>>------------------------------**----------------------
>>Cormac Reynolds
>>Phone: +61 8 9266 3785
>>Fax: +61 8 9266 9110
>>email: c.reynolds_at_curtin.<!--nospam-->edu.au
>>------------------------------**----------------------
>>
>>
>>>>
>>>>
>>>
>
Received on 2013-05-29 09:27:52
Date: Wed, 29 May 2013 09:27:40 +1000
By the way, do we turn off the automatic gain control on DAS for this
experiment?
Cheers,
Shinji.
On 28 May 2013 16:40, shinji horiuchi <shoriuch_at_gmail.<!--nospam-->com> wrote:
>Cormac,
>
>I guess SgrA* at L-band is still weaker than ambient load. DAS for 64MHz
>profile for L-Band looks fine with the level between sky and ambient load.
>
>As I told you in the separate email, 70m is only available for limited
>time, i.e. 10:00-13:00 and 17:45-19:30, we should take some lisk for Tid.
>The antenna is yet to return to be operational and I won't be onsite to run
>this, leaving Phil Pope in ops team to run this.
>
>Cheers,
>Shinji.
>
>
>On 28 May 2013 15:50, John Reynolds <John.Reynolds_at_csiro.<!--nospam-->au> wrote:
>
>>Shinji,
>>
>>
>>I would just play with manual attenuators to get the signal within the
>>>right range.
>>>
>>
>>That could be twice every 6 minutes, as we switch between the pulsar and
>>the cal. Be nice to have some help if you're doing this.
>>
>>On the other hand the DAS might just be able to cope with the range,
>>though SgrA* is the strongest source in the sky other than the Sun so I'm
>>guessing maybe not.
>>
>>Cheers,
>>John R
>>
>>
>>On Tue, 28 May 2013, shinji horiuchi wrote:
>>
>>I would just play with manual attenuators to get the signal within the
>>>right range.
>>>
>>>Cheers,
>>>Shinji.
>>>
>>>
>>>On 28 May 2013 14:27, James Lovell <Jim.Lovell_at_utas.<!--nospam-->edu.au> wrote:
>>>
>>>Some programmable attenuators would be nice at Tid. There were some
>>>>ready
>>>>to install when I was there. Leigh Cameron even got them working but
>>>>they
>>>>caused RFI (or something) so had to be removed.
>>>>
>>>>Maybe if Shinji could plumb the signal though the MkIV rack as this has
>>>>programmable attenuators that can be controlled from the Field System.
>>>>
>>>>Or perhaps better to record to Mark5 and have a couple of extra
>>>>procedures
>>>>that are called after source changes to adjust the attenuation? Then no
>>>>re-wiring is needed.
>>>>
>>>>Cheers,
>>>>Jim
>>>>
>>>>
>>>>
>>>>
>>>>On 28/05/2013, at 2:14 PM, John Reynolds <John.Reynolds_at_csiro.<!--nospam-->au>
>>>>wrote:
>>>>
>>>>Cormac,
>
>some Tid time has just become available for vx017a, so I have updated
>>
>
>Should be fun maintaining acceptable levels when switching on and off
>
>>>>SgrA, something that promises to be interesting at Parkes as well.
>>>>
>
>Cheers,
>John R
>
>On Tue, 28 May 2013, Cormac Reynolds wrote:
>
>hi,
>>
>>some Tid time has just become available for vx017a, so I have updated
>>the schedule (and redistributed). Please make sure you are using the
>>vex file with 'PI revision number: 2.0'. Some of the scan timings have
>>changed to incorporate the slower moving antenna.
>>
>>thanks,
>>Cormac.
>>
>>On 27 May 2013 18:40, Cormac Reynolds <c.reynolds_at_curtin.<!--nospam-->edu.au>
>>wrote:
>>
>>>hi all,
>>>
>>>I have created a schedule for Wednesday's LBA ToO. Schedules have
>>>been
>>>distributed to the telescopes and the wiki pages are in place:
>>>http://www.atnf.csiro.au/vlbi/**wiki/index.php?n=LBAMay2013.**VX017A<http://www.atnf.csiro.au/vlbi/wiki/index.php?n=LBAMay2013.VX017A>
>>>
>>>Regards,
>>>Cormac
>>>
>>>--
>>>------------------------------**----------------------
>>>Cormac Reynolds
>>>Phone: +61 8 9266 3785
>>>Fax: +61 8 9266 9110
>>>email: c.reynolds_at_curtin.<!--nospam-->edu.au
>>>------------------------------**----------------------
>>>
>>
>>
>>
>>--
>>------------------------------**----------------------
>>Cormac Reynolds
>>Phone: +61 8 9266 3785
>>Fax: +61 8 9266 9110
>>email: c.reynolds_at_curtin.<!--nospam-->edu.au
>>------------------------------**----------------------
>>
>>
>>>>
>>>>
>>>
>
Received on 2013-05-29 09:27:52