I have used a Kenwood TH-F6A for listening to the linear sats before. There are only 3 linear sats working now, AO-7(switches between 10m and 2m downlink daily), FO-29, and VO-52. There are 3 FM sats also, SO-50, AO-51(may not be on every pass, having some battery issues and must be turned on by command team, downlink on 435.150 +/- doppler), and AO-27- its on a timer so its usually on in the afternoon, whenever it crosses 30 degrees N on an ascending pass.
SO-67 is currently off because of a corrupt CAN module but it used to be on a rotation, one week each month for North America, Europe/Africa, Australia and Asia. HO-68 is not working and I don't think a reason was given for it being down, used to switch between linear transponder and FM for a couple weeks at a time and like SO-67 was on for scheduled passes with schedules being uploaded to the sat by command team. A think the last time the HO-68 repeater was heard was in early January, the CW beacon may still work