[GMVAtech 42] Re: IF and tuning capability

[Salvador Sanchez]

Dear colleagues,

This is the sky frequency coverage for the IRAM 30M 3mm Receiver:

LSB (73 - 97) GHz

USB(89 - 117)GHz

These numbers are the center of the 4GHz IF bands, so the real most 
outer limits in sky are +-2 GHz (71 - 99)LSB and (87 - 119)USB.

More details can be found in the 
link:http://www.iram.es/IRAMES/mainWiki/EmirforAstronomers 
<http://www.iram.es/IRAMES/mainWiki/EmirforAstronomers>

The LO step size depends on the resolution of the reference synthe used 
x the factor of the phase loop. Typically 100Hz to 1KHz.

Best regards,

Salvador

On 16/06/2020 10:01, Helge Rottmann wrote:
> Dear colleagues,
>
> for planning VLBI spectral line observations with the GMVA I would 
> like to ask you for an update of the
> 3mm IF and tuning capabilities of your station.
>
> Please provide  feedback of:
> - frequency range covered in the 3mm band
> - sideband restrictions (e.g. only USB)
> - tuning capabilities (LO step sizes etc.)
>
> @VLBA: please ignore this request. The current capabilities were 
> already discussed with W.Brisken.
>
> Many thanks,
> Helge
>
> ------------------------------------------------------
> Helge Rottmann
> Max-Planck-Institut für Radioastronomie
> Auf dem Hügel 69
> 53121 Bonn
> Germany
>
> Tel: ++49 (0)228 525 123
> ------------------------------------------------------
>
>
>
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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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