[TenTec] Orion NB button

[Martin Ewing <martin@aa6e.net>]

Easy question:  Does anyone use the Orion's NB button?  When is it 
useful?  When is the ":HW" option needed?
Maybe I live in a blissful radio quiet zone, but my NB (1.371) seems to 
be a no-op.  Nothing changes, even when I put it full on: 9:HW.  I could 
start up my lawnmower just to give it serious impulse noise, but 
normally lawnmowing and ham operation are anti-correlated around here.
What we need these days is effective atmospheric noise blanking (and 
shortly BPL blanking?), but Orion's NB doesn't solve those problems.
Cheers,
Martin