GBT OPERATIONS PROCEDURES |
Number: OP-06 |
Title: Signal Path Setup |
Last Revision: 27Nov01 |
Refer to the GBT Electronics Schematic for assistance in tracing the signal path from front end to backend components.
The following table lists the basic Cleo applications required to set up the signal path for completing the type of observation shown. Additional applications (Signal Switch Selector, IF Manager, etc.) may be needed initially during your set up depending on observer preferences or to check settings associated with a specific component.
OBSERVATION TYPE |
NORMAL CLEO APPLICATIONS REQUIRED | |
---|---|---|
Continuum |
* Only required when using the Spectrometer or if specified by the observe when using the DCR |
|
Spectral Line/Pulsar |
|
STEP |
ACTION | |
---|---|---|
1 |
Launch the CLEO LO1 application: CLEO launch®I.F./L.O®LO1 |
|
2 |
Check and/or set the following:
|
RECEIVER |
FREQ (MHz) |
RECEIVER |
FREQ (MHz) |
PF1 (342.5 MHz) |
1080 |
S-Band (1.73-2.60 GHz) |
6000 |
PF1 (450 MHz) |
1080 |
C-Band (3.95-5.85 GHz) |
3000 |
PF1 (600 MHz) |
1080 |
X-Band (8-10.1 GHz) |
3000 |
PF1 (800 MHz) |
1080 |
Ku-Band (12-15.4GHz) |
3000 |
L-Band (1.15-1.73 GHz) |
3000 |
K-Band (18-26.5 GHz) |
6000 |
STEP |
ACTION | |
---|---|---|
1 |
Launch the desired CLEO Receiver application: CLEO launch®receivers®select receiver (Prime Focus: PF1 or PF2; Gregorian: 1-2(L), 2-3(S), 4-6(C), 8-10(X), 12-18(Ku), 18-26(K)) |
|
2 |
Check and/or set the following:
|
STEP |
ACTION | |
---|---|---|
1 |
Launch the CLEO IF Rack application: CLEO launch®I.F./L.O.®I.F. Rack |
|
2 |
Check and/or set the following:
|
Note: Steps concerning the Converter and Analog Filter Racks may be skipped if using the DCR.
STEP |
ACTION | |
---|---|---|
1 |
Launch the CLEO Converter Rack application: CLEO launch®I.F./L.O.®Converter Rack |
|
2 |
Check and/or set the following:
|
Note: Skip steps for setting up the Analog Filter Rack if using the Spectral Processor.
STEP |
ACTION | |
---|---|---|
1 |
Launch the CLEO Analog Filter Rack application: CLEO launch®I.F./L.O.®Analog Filter Rack |
|
2 |
Check and/or set the following:
|
STEP |
ACTION | |
---|---|---|
1 |
Launch the CLEO DCR application: CLEO launch®Backends/®DCR |
|
2 |
Check and/or set the following:
|
STEP |
ACTION | |
---|---|---|
1 |
Launch the CLEO Spectrometer application: CLEO launch®Backends/®Spectrometer |
|
2 |
Check and/or set the following:
|
STEP |
ACTION | |
---|---|---|
1 |
Launch the CLEO Spectrometer application: CLEO launch®Backends/®Spectral Processor |
|
2 |
Check and/or set the following:
|
Prepared by: Dave Rose
Last modified: 27Nov01