"Today's update regards the progress of the ISEE-3 Reboot Project team in our preparations to contact the spacecraft. We started this effort 32 days ago on on April 12, 2014. Below is what we have accomplished in that time - and the challenges that lie ahead. Perhaps the toughest part of doing something like this in a very limited timespan is to climb the learning curve - and to do so with a spacecraft you knew very little about. Early on we did a preliminary evaluation of the spacecraft and its systems so as to better understand it. This was a long jump into deep water. As we did with our Lunar Orbiter Image Recovery Project (concerns the 1960s era Lunar Orbiter spacecraft) the search for ISEE-3 documents has been intense and not without failure."
Space Hackers Prepare to Reboot 35-Year-Old Spacecraft , IEEE Spectrum
"Ettus has volunteered to help with the programming, and one member of the company will join Wingo in Arecibo. They'll set to work there on 19 May, using a 400-watt transmitter shipped in from Germany to try to make contact with the spacecraft."