Its more clutter I guess, but I prefer separate machines for the vintage of radio. For Syntor X-9000, MCX-1000,MT-1000, HT-600,STX, Saber etc, I use my 286-16 clone or 286 laptop (4 MB) with DOS 6.22 only. The RSS needs a Very slow CPU so you don't get the "Error Divide by Zero" program crash.
For Astro Spectra,Astro Saber, HT-1000, MT-2000 etc a Pentium or Pentium II (64 MB RAM) will be OK. For that era of WinRSS, it'll also work good with Win98. P-III I would say more win98 or XP CPS for Professional Radios HT-1250,750 (128,256MB Ram).. P4 for Astro Spectra,Astro-25 CPS etc Win XP (1GB Ram).