Many thanks for your help.
I'm pleased to provide corroboration for your reply.
The Press Release sections of both websites [ralinktech.com and web.ralinktech.com] indicate that the URL of the Company's website is www.ralinktech.com.
In addition, I summoned up my courage and called Ralink's R&D center in California. I was told that drivers should be downloaded from www.ralinktech.com.