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If you're interested in following these things, the Deep Space Network Now page [1] is a fun one to keep bookmarked. It displays the real time status of each DSN station and what spacecraft they are communicating with. [edit] you'll want to click on "more detail" on the lower right to see the technical information about the signals for each antenna.

Right now, Canberra has both an uplink and a downlink going to New Horizons.

Even more fun is when they get a downlink from one of the Voyager probes. The signal strength is so incredibly small, it's testament to very skilled engineers developing the signal processing they use.

[1] https://eyes.nasa.gov/dsn/dsn.html