Fully realizing there were/are exceptions to the "never run" rule I stated above, my buddy had his General Lee (similar to a 3300) tuned and turned, he could reach out... I think he claimed 30 miles, I wasn't in the truck, can only take that at face value.
But the bulk of the puppy mill companies run Vulva/Freightshaker, and the bulk of the puppy mill companies don't run radios, as a blanket statement, it was purty accurate, and matches your findings back in the day.