Used to work Oscar 7/8 & RS-10/11 (2m up/10m down) & RS-12 (15m up/10m down) back in the 80's & 90's. Had a blast. Doppler wasn't too bad on HF but did require some multitasking to keep up with the 2m signal. Looks like the Chinese plan to launch one this fall that's 15m up/10m down. Look forward to giving that one a try.
Oscar 7 is still kicking around but haven't heard the 10m beacon in a couple of years.