GBT 4mm Receiver Project Book
Chapter 7, Control Points
Author: Mark Whitehead
Rcvr68_92 Manager - Cryogenic Amplifier Bias On/Off (RA 0x4B)
| Parameter Name | Type | Description |
|---|---|---|
| xl1BiasSwitch | Enumeration | On/Off control of the bias voltage for amplifier XL1 (b0). |
| yr1BiasSwitch | Enumeration | On/Off control of the bias voltage for amplifier YR1 (b1). |
| x2BiasSwitch | Enumeration | On/Off control of the bias voltage for amplifier X2 (b4). |
| y2BiasSwitch | Enumeration | On/Off control of the bias voltage for amplifier Y2 (b5). |
| The default power-on state should be ON. | ||
Rcvr68_92 Manager - Calibration State Change Activation(RA 0x4C, b0)
| Parameter Name | Type | Description |
|---|---|---|
| calibrationActivate | Enumeration | Allows the user to to activate the calibration table (On/Off). |
| The manager will set calibrationActivate to 0 at startup. | ||
Rcvr68_92 Manager - Calibration Table Position Select (RA 0x4D, b0 - b3)
| Parameter Name | Type | Description |
|---|---|---|
| calibrationTablePosition | Enumeration | Allows the user to indicate the desired position of the calibration table (0,1,2,3,4,5,6,7). |
Rcvr68_92 Manager - Polarization Select (RA 0x4E, b0)
| Parameter Name | Type | Description |
|---|---|---|
| polarizationSelect | Enumeration | Used to select circular or linear polarization by moving the quarter wave plate over or away from Feed 1. |
Rcvr68_92 Manager - Calibration Dwell Time
| Parameter Name | Type | Description |
|---|---|---|
| calibrationDwell | Integer | The time in seconds a calibration load is in position. |
| The default dwell time is 5 sec. | ||
Rcvr68_92 Manager - Cryogenic Amplifier Bias Level Control (RA 0x40 - 0x47)
| Parameter Name | Type | Description |
|---|---|---|
| xl1CryoAmp | Float | Trims bias of amplifier XL1 (RA 0x40). |
| yr1CryoAmp | Float | Trims bias of amplifier YR1 (RA 0x41). |
| x2CryoAmp | Float | Trims bias of amplifier X2 (RA 0x44). |
| y2CryoAmp | Float | Trims bias of amplifier Y2 (RA 0x45). |
| The voltages vary from -10 - 10 Volts. | ||
| The default voltage is 2048 (0 Volts). | ||
| RA 0x42, 0x43, 0x46 and 0x47 are reserved. | ||
Gregorian Receiver Base Class (Already implemented.)
| Parameter Name | Type | Description |
|---|---|---|
| cryoState | Enumeration | Controls the state of the cryo refrigerator (Off, Heat, Cool, Pump), (RA 48h). |
| cryoMonitorRate | Enumeration | Sets the cryogenics sampler monitor interval (100ms - 1hr). |
| cryoStatusMonitorRate | Enumeration | Sets the monitor interval for the cryoStatus and cryoStatusBits samplers (100ms - 1hr). |
| cryoCtlMonitorRate | Enumeration | Sets the cryoCtl sampler monitor interval (100ms - 1hr). |
| gregorianMonitorRate | Enumeration | Sets the gregorian sampler monitor intervals (100ms - 1hr). |
| supplyMonitorRate | Enumeration | Sets the powerSupply sampler monitor interval (100ms - 1hr). |
Manager Base Class (Already implemented.)
| Parameter Name | Type | Description |
|---|---|---|
| asap | Boolean | Controls whether the manager starts as soon as possible. |
| requestedStartTime | Timestamp | Target start time of next scan if asap flag is clear. |
| requestedStopTime | Timestamp | Target stop time of next scan. |
| startTime | Timestamp | Excepted start time of the next scan. |
| scanLength | Timestamp | Expected duration of next scan. |
| nextScanNumber | Integer | Scan number of next scan. |
| scanNumber | Integer | Scan number of current or last scan. |
| projectId | String | Project identifier string < 16 characters. |
| source | String | Source identifier string < 32 characters. |
| scanId | String | Scan identifier string < 32 characters. |
| receipientNumber | Integer | Number of Manager clients. |
| state | Enumeration | Current operational state of Manager. |
| debugLevel | Enumeration | Controls the level of debug output. |
| status | Enumeration | Summarizes the severity of the Message levels. |
