I sent in a question to ValentineR. a week ago:
Answer:COMMENTS: I recently bought a new v1(3.826) after having a non-pop v1.8.
There is some idle speculation from some of the main testers that
turning POP mode off may increase range on non-pop KA band frequencies
like 35.5 and 34.7GHZ. Or that it may pick up instant on better in
those frequencies with pop mode off. Is this true? Thank you for all
Mr. Valentine says that what you speculate is not true. He says there
is no difference.