[Kenwood] Kenwood SM-220 Station Monitor

[Conrad & Kathi Nasatka]

Good day to all Kenwood aficionados:
I am trying to find or get in touch with someone that has a Kenwood SM-220 station monitor with the BS-8 display option.  I presently have one without the BS-8 Pan Display Option.  However, I would like to speak to someone who has one and uses all the functions that the SM-220 has.  For Instance, there are 3 connection cables necessary to make them functioning according to the manual.  There is a specific graticule necessary when you put the BS-8 option into operation.  I have tried to locate one on eBay but just missed one that had everything.  If I could speak to someone that weigh in on the specific benefits I would be most appreciative.  As I said I own one and did so specifically to monitor my signal when I had the Kenwood TL-922A in line to provide me with some idea of linearity.  I would appreciate it very much because I am missing something, sorry!
Regards
73
Conrad
WB3DQD