[GMVAtech 44] Re: modifed LO setting for MK018

[Salvador Sanchez]

Dear Thomas and all,

The new LO at 87.300GHz that you propose for MK018 is perfectly possible 
for the 30M. As you know it takes some time for the tuning and new LO 
setting but that shouldn´t be a problem according to the schedule block.

In the tst.vex that you attached I can see a different value LO at 87.500 
GHz for PV. What does it mean? Anyhow it is not a problem and this value 
of LO is also possible at the 30M.

Best,

Salvador


On 09/09/2020 18:06, Thomas Krichbaum wrote:
> Hi Helge,
>
> in the standard GMVA setup, we usually use firstlo =85500.0 MHz.
>
> In the next session there is one experiments, which requires
> observations at 88 GHz, with a different firstlo =87300.0 MHz. This LO
> is one of the possible modes, which the VLBA can do.
>
> Can you please confirm that this is possible for all GMVA stations.
>
> I attach a skeleton for the new setup. I also note
> that in the next GMVA run, we will need to change form
> one setup to the other one:
>
> FRNGTST  86 GHz standard
> POLCAL1  86 GHz standard
>
> MK018    88 GHz nonstandard
>           Eu 282  2200(08/10)-0530(09/10)
>           US 283  0400(09/10)-1030(09/10)
>
> MK016A   86 GHz back to standard
>
>
>
> best Thomas
>
>
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-- 

Salvador Sanchez    sanchez at iram.es

Telescope Engineer

IRAM-Instituto de Radioastronomia Milimetrica
Avda. Divina Pastora 7, NC
18012 Granada  Spain
Tel: +34-958482002-332 (direct)  +34-958482002 (central)
web: www.iram.es


 

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