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Sometimes the DBBC needs reprogramming because channels have been dropped or spectra look strange. To do this, preferable in a gap between scans, follow the following steps:
vncviewer -shared 131.217.63.248:0
DBBC Control.exe
. At the Enter Command:
prompt, typeEnter Command: reconfig
The DBBC will be reprogrammed, which takes about 2 minutes.
Enter Command: pps_sync
You should then see a row of LEDs on the DBBC flash in sync, once a second.
fmset
In the interface, type S
followed by y
, then press the ESC key.
mk5=dot?
and check that you see syncerr_eq_0
and FHG_on
(or FHG_off
). If you see something like syncerr_gt_3
then fmset
may need to be run again. Also check that the maser-GPS and delay through the DBBC are the same (to within a microsec) with the clkoff
and dbbcdelay
commands