Active Surface Strategies

If you are observing at a frequency of 8 GHz or higher then you should use the Active Surface (AS). At frequencies below 8 GHz the AS does not provide any improvements to the efficiency of the GBT. Due to RFI considerations the AS may be turned off for lower frequency observations.

Note

You do not need to do anything to turn on or off the use of the AS. The GBT operator performs these tasks.