OK, so Mars isn't really considered DX in the DSN arena but it's too low on the horizon for my 1.2m so I dragged the 2.4 out. For all doubters out there, the Fortec works quite well on 8.4GHz. Here's MRO Mars Reconnaissance Orbiter on 8439.255MHz. Quite a decent signal:
Much closer at 112,000,000km on 8445.569MHz, OSIRIS-REx OSIRIS-REx Mission but at only 10 degrees elevation it's...
Tin Dish (almost) DX on X band

Much closer at 112,000,000km on 8445.569MHz, OSIRIS-REx OSIRIS-REx Mission but at only 10 degrees elevation it's...
Tin Dish (almost) DX on X band