See memo TA#0016.MEM by Bregman.
All frequencies below are in MHz, unless otherwise explicitly stated.
The standard 6cm observing settings are:
OBS.FRF 4986.990000
SYNT. LO1 169.999996
LO2 DCB 181.750000
ARTFR.RATE .000115 (minus 5Hz in RFDS)
LO3 (AVE) 68.74
FREQ. LO3 BW on Mk3 IF
B0 F1 5000.990 82.74 10 173.75
B1 F2 4984.990 66.74 10 148.75
B2 F3 4968.990 50.74 10 123.75
B3 F4 4996.990 78.74 10 (not used, spare)
B4 F5 5008.990 90.74 10 186.25
B5 F6 4992.990 74.74 10 161.25
B6 F7 4976.990 58.74 10 136.25
B7 F8 4960.990 42.74 10 111.25
See section WSRT Mixing schemes. See the 6cm frequency diagram
The standard 18cm observing settings are:
OBS.FRF 1664.990000
SYNT. LO1 170.000011
LO2 DCB 181.750000
ARTFR.RATE .000094 (plus 5Hz in RFDS)
LO3 (AVE) 46.76
FREQ. LO3 BW on Mk3 IF
B0 F1 1680.99 30.76 10 173.75
B1 F2 1664.99 46.76 10 148.75
B2 F3 1648.99 62.76 10 123.75
B3 F4 1664.99 46.76 10 98.75 (not used normally)
B4 F5 1688.99 22.76 10 186.25
B5 F6 1672.99 38.76 10 161.25
B6 F7 1656.99 54.76 10 136.25
B7 F8 1640.99 70.76 10 111.25
Spectral line observations at 18cm often require nonstandard setups, and these must be worked out on a case-by-case basis. See section WSRT Mixing schemes.
See the 18cm frequency diagramThese are the most recently used setup for 92cm VLBI. This is a VLBA standard mode.
OBS.FRF 325.990000
SYNT. LO1 214.990115 (set above 200MHz for wideband mode)
LO2 DCB 181.750000
ARTFR.RATE .000110 (plus 5Hz in RFDS)
LO3 (AVE) 70.75
FREQ. LO3 BW on Mk3 IF
B0 F1 329.99 66.75 5 173.75
B1 F2 325.99 70.75 5 148.75
B2 F3 321.99 74.75 5 123.75
B3 F4 325.99 70.75 5 (not used, spare)
B4 F5 331.99 64.75 5 186.25
B5 F6 327.99 68.75 5 161.25
B6 F7 323.99 72.75 5 136.25
B7 F8 319.99 76.75 5 111.25
See section WSRT Mixing schemes.
See the 92cm frequency diagram