[amsat-bb] FM scanner for downlink?

Hello All,   I am looking for a scanner that I could use with a Hamtronics preamp as a downlink.  The scanner should be able to step in 1 KHZ steps or less, receive on FM and maybe be used in the 137 MHZ range for WX sats.  Portability and price are a MAJOR consideration.  Let me know if anyone else is using such an item and the make/cost.   Thanks and 73,   James Hickox, AA5AO EM02