I have some info about the V1 pop2 software. In December 2004 I had my V1 upraded for pop2 and when I received it back it came with 3.818.
A few weeks ago I experienced the J while receiving real police Ka so I called in to explain my problem. They were quit willing to admit the problem and said I can send it in to get new software version 3.819 to correct this issue.
I questioned them as to why not just give me 3.824 because that is the current software in new units now. She had explained to me that in order to get 3.824 I would have to pay $75 because there is a hardware change that goes along with 3.824 and the unit will receive a new serial number.
She said that 3.819 fixes the J problems in units that had 3.818 and 3.824 fixes the J problem in 3.821 units. She also explained that there is no need to have 3.824 unless I travel to europe but it was my choice if I wished. So my decision was 3.819 for free or 3.824 for $75.00.
I thought about it for a few days and I figured what the hell I really dont want to spend the $75 dollars but if the hardware changed there just may be some additional benefit from it. So thats what I did I went for the 3.824 for $75.00. I have the unit back for about 3 days now and I have not had the J issue block out real Ka and I also noticed that K band is much more calm while driving in town compared to when I had 3.818. So I suspect between the hardware and software change VR must have made some effort in controling K band allerts in the city while in L mode.
I thought I would let everyone know my experience. I am now happy I went for the 3.824