Expert Mode

This mode is for local staff and experienced Duty Astronomers only. It offers a few more calibration options and some dangerous reset options. Expert mode is entered by typing E at the initial prompt. In calibration mode you can:

• Specify the frequency chain(s) to use.
• Specify antennas to ignore during calibration (apart from those already disabled in CAOBS)
• Calibrate the global delays.
• Determine the polarization leakage terms on sources other than 1934-638.

If you choose the reset option in the first question, you have some extra options: You can

• Remove stored calibration factors for specific frequency/bandwidth combinations (e.g., to avoid using delays determined at narrow band).
• Reset the entire offset calibration area, i.e., start from scratch with only the global delays and early normal calibration in place.
• Reset the global delays (for use after reconfiguration).