Antenna Control Formats
| Char | Function | |
|---|---|---|
| 1 | SYNC Byte (80 Hex) | |
| 2 | Azimuth Low 7 bits | |
| 3 | Azimuth High 7 bits | |
| 4 | Elevation Low 7 bits | |
| 5 | Elevation High 7 bits | |
| 6 | Control Word #1 | D6 = MSB of Pulse Width |
| D5 = Leave Pulse Width unchanged | ||
| D4 = Spare | ||
| D3 = Signal Generator On | ||
| D2 = Signal Generator CW | ||
| D1 = EL (1 = Scan, 0 = Position) | ||
| D0 = AZ (1 = Scan, 0 = Position) | ||
| 7 | Control Word #2 | D6 = Reset RCP8 on edge |
| D5 = Noise Source On | ||
| D4 = LSB of Pulse width | ||
| D3 = Radiate On complemented | ||
| D2 = Radiate On | ||
| D1 = Servo Power On | ||
| D0 = T/R Power On | ||
| 8 | Control Word #3 (all spare) | |
| 9 | Signal generator level (unsigned 0–127 dB attenuation) | |
| 10 | AZ/EL Antenna speed (signed 7 bit, 0.55 degree resolution) | |
| 11 | END OF MESSAGE (FF Hex) | |
| Char | Function | |
|---|---|---|
| 1 | SYNC Byte (80 Hex) | |
| 2 | Azimuth Low 7 bits | |
| 3 | Azimuth High 7 bits | |
| 4 | Elevation Low 7 bits | |
| 5 | Elevation High 7 bits | |
| 6 | Control Word #1 | D6 = MSB of Pulse Width |
| D5 = Leave Pulse Width unchanged | ||
| D4 = Spare | ||
| D3 = Signal Generator On | ||
| D2 = Signal Generator CW | ||
| D1 = EL (1 = Scan, 0 = Position) | ||
| D0 = AZ (1 = Scan, 0 = Position) | ||
| 7 | Control Word #2 | D6 = Reset RCP8 on edge |
| D5 = Noise Source On | ||
| D4 = LSB of Pulse width | ||
| D3 = Radiate On complemented | ||
| D2 = Radiate On | ||
| D1 = Servo Power On | ||
| D0 = T/R Power On | ||
| 8 | Control Word #3 | D6 = IRIS Mode 2 |
| D5 = IRIS Mode 1 | ||
| D4 = IRIS Mode 0 | ||
| D3 = Radar Workstation A okay | ||
| D2 = Radar Workstation B okay | ||
| D1 = Data Processor A okay | ||
| D0 = Data Processor B okay | ||
| 9 | Signal Generator level (0–127 dB attenuation) | |
| 10 | AZ Antenna Speed Low 7 bits | |
| 11 | AZ Antenna Speed High 7 bits | |
| 12 | EL Antenna Speed Low 7 bits | |
| 13 | EL Antenna Speed High 7 bits | |
| 14 | END OF MESSAGE (FF Hex) | |
| Char | Function | |
|---|---|---|
| 1#endash13 | These bytes exactly match the XMT02 / XMT04 format | |
| 14 | Control Word #4 | D6 = Dual–System: Mode MSB |
| D5 = Dual–System: Mode LSB | ||
| D4 = Dual–System: Offer to relinquish control | ||
| D3 = Dual–System: Unit would be used if available | ||
| D2 = Spare | ||
| D1 = Spare | ||
| D0 = Spare | ||
| Note: The 2–bit Dual–System Mode codes are: | ||
| 00 : No change | 01 : System "A" | |
| 10 : System "B" | 11 : Auto Switch | |
| 15 | Control Word #5 | D2:0 = Requested Polarization XMT control |
|
0 = Horizontal 1 = Vertical 2 = Alternating 3 = Simultaneous |
||
| 7 = Unchanged | ||
| D6:3 = Spare | ||
| 16 | Spare | |
| 17 | Spare | |
| 18 | END OF MESSAGE (FF Hex) | |