I found this article on the FAA website. It basically talks about the construction of the new LaGuardia Airport Air Traffic Control Tower. Towards the end it discuss how the tower will be linked to the navigation aids and to new remote transmit and recieve sites. New transmit and recieve sites are being built that will help audio clarity between the controllers and pilots. For those that are near LaGuardia they should probably hear some testing regarding the new transmit and recieve sites within the next couple of months.
Here is the link to article:
https://employees.faa.gov/org/linebusiness/ato/news/features/story/index.cfm?newsId=59876
Here is the link to article:
https://employees.faa.gov/org/linebusiness/ato/news/features/story/index.cfm?newsId=59876