[fineshot1]

or

you could purchase one of these or similar on ebay or some of the other ham radio web sites

NOS Decibel Products DB4140-1B Notch Filter 148-174 MHz - eBay (item 250454182586 end time Jul-05-09 19:00:00 PDT)

http://www.repeater-builder.com/db/d...structions.pdf