16.01.01/jn
A new receiver at 1.9 cm wavelength is available for the
primefocus.
It is an one channel total power system specially designed for line
observations.
The sky frequency range from 13.45 GHz to 18.5 GHz. The
system
temperature is about 40-50 K.
The system delivers the smallband IF(at 150 MHz) and
the broadband
IF(at 750 MHz). So it can be used in connection with the old (1024
channel) correlator as with the (8192 channel) AK-90 correlator. The
AK-90
correlator can use both IFs, the 1024-AK only the smallband IF.
As the system is splitted in different frequency
ranges and in small-/broadband,
the frequency input in OBSe must be done with the FRQRX comand.
FRQRX alone prints out
Help
FRQRX < freq
> [ < fixed
> [ < smallband >]]
< freq
>:
Frequency in GHz
< fixed
>:
use F(ixed) for fixed frquency, otherwise
corrected
frequency
<
smallband>:
smallband version (IF at 150 MHz)
Examples:
FRQRX
16
! Broadband with AK-90 or continuum
FRQRX 18 o
S
! Smallband AK-90 or AK-1024 or continuum
FRQRX 17.5
f
! Broadband with AK-90 or continuum with fixed frequency
FRQRX 19 f
S
! Smallband AK-90 or AK-1024 or continuum with fixed
frequency
