Here the procedure I used to measure my receiver equivalent bandwith to calculate NF.
https://www.owenduffy.net/measurement/enb/MeasureIfBw.htm SpecrunLab is also a very good tool to measure EBW https://www.owenduffy.net/measurement/enb/MeasureIfBw2.htm JC N4IS 73's _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
