With GRE out of the picture as a company, as far as firmware updates, does it matter between the two?
Some people swear that the PRO-197 has better performance than the PSR-600. I certainly haven't noticed that and I suspect any differences are due to quality control and firmware.
One neat thing that the PSR-600 includes is the all important USB programming cable.
Quick question. I have been using with much success a pro-106 on my local simulcast system. I am looking to purchase a 197 (need the base model for my car). Is there any technical difference between the 197 and the psr600?