Can the AB9000 be used stand alone? is there software?
The online info on the AB1036 doesn't say anything about filtering except in specs with the note "adjustable" Is there a more complete manual?
AB 9000 filtering range can be set with a rotary switch when not connected to a 9000 mainframe. The gain is fixed at 17dB, but it would be easy to put in a Mini Circuits NAT-10DC+ to bring it down to 7dB if needed.
The AB 1036 is probably too old for a pdf manual ;-), but it includes a bandpass filter that can be tuned to around 5-40 MHz bandwith. Needs a screwdriver and somebody that knows how a spectrum analyzer works, so not exactly plug and play.