Dont think there is any it was added function in a firmware update. Fairly simple but if you have question how to do something somebody here can probably answer. I have never had luck with the lcn finder or rf power plot but the system status works
Update
Rf plot is fairly easy just enter frequency and mod and it plots the rf do it works, for the lcn finder, i only have 1 edacs and it just sits on channel 1 and never moves on maybe i am not patient enough
The Analyze mode in the 436/536 is very rudimentary compared to that on the HP-1 and HP-2 units. For whatever reasons, Uniden never brought the 436/536 up to the same standard, as had been originally envisioned.