Originally Posted by Unitrunker
I thought the NWS was 50 khz FM, not the typical 12.5 khz narrow FM.
Yes, that's true.
"The NWS recommends the public purchase receivers with a 0.5 to 1.0 microvolt sensitivity for 20 decibels (dB) quieting, a selectivity of 45 to 70 dB down at +/- 25 kilohertz (kHz)"
However, as in my case, when you receive multiple, adjacent NOAA broadcasts, that's not feasible.
If you're only trying to recover audio (and not data) you can use whatever bandwidth works best for you.