hp 8901b option 037

[retroware]

I recently purchased a HP 8901B with the phase noise/adjacent channel power options 030, 033 an 035. What I really wanted this for was to measure phase noise for which I needed a unit with option 037. As far as I can tell the only difference between options 033, 035 and 037 are the IF filters that are fitted to to the A72 board. Mine has two murata filters: CFS455-C and CFS455-F. I was wondering if anyone has option 037 and would be willing to let me know what filters are installed on the A72 board.

Thanks for any help.