SIMPLE NOTCH FILTER - NOTCH FILTER

26 listopad 2011


SIMPLE NOTCH FILTER - TECUMSEH AIR FILTER 36046 - BAG FILTER OPERATION.



Simple Notch Filter





simple notch filter






    notch filter
  • A filter that attenuates signals within a very narrow band of frequencies

  • In signal processing, a band-stop filter or band-rejection filter is a filter that passes most frequencies unaltered, but attenuates those in a specific range to very low levels. It is the opposite of a band-pass filter.

  • A circuit that takes a small "slice" out of the bandpass tuned by a receiver; this is useful for reducing interference from narrow bandwidth signals.

  • A specialized kind of equalizer that can be tuned to "notch out" problem frequencies without affecting neighboring frequency bands. Usually used to kill feedback frequencies. Equinox features two switchable notch filters.





    simple
  • A medicinal herb, or a medicine made from one

  • having few parts; not complex or complicated or involved; "a simple problem"; "simple mechanisms"; "a simple design"; "a simple substance"

  • any herbaceous plant having medicinal properties

  • elementary: easy and not involved or complicated; "an elementary problem in statistics"; "elementary, my dear Watson"; "a simple game"; "found an uncomplicated solution to the problem"











A simple mod (07843)




A simple mod (07843)





For dudes who remove the IR filter from their camera or custom chip their AI/S lenses this might not be a big deal, but this was the first time that I encountered my gear with a hacksaw.

The Manfrotto 725B comes with the standard Manfrotto QR (quick releaseplate) and I wanted it replaced with an Arca-Swiss type plate.

I salvaged the AS-plate from my Giottos ballhead (I'm expecting better ones from Really Right Stuff any day now). Taking the Manfrotto plate off was easy; it is attached with a single screw. But...

The Manfrotto QR plate has a groove and the stud has two matching notches. The Giottos plate doesn't have a groove and letting it rest on the notches alone didn't seem a good idea.
So I took a hacksaw, sawed off the notches and smoothened the stud with my Dremel. The stud seems to be made from aluminium so no need to paint as it won't rust.

Not a very impressive mod maybe, but I'm still very happy with the result. It wasn't necessary - I'm only using the 725B for my D40 - but I like to standardize and having the ability to put any of my bodies on any of my tripods without attaching other plates is something that I like. All I need now is a nicer plate for the D40 - the one I have mounted on it right now is not the most handsome in the world.











avalanche falls




avalanche falls





at flume gorge
franconia notch, new hampshire

by far one of the best adventures with lenore yet; we always go for nature walks, and this one was a good two and a half hours away from us, but totally worth the drive. flume gorge is absolutely beautiful, and our trip to the top of cannon mountain (pics to follow) was equally as amazing.

i'm so happy that lenore enjoys doing things like this; a simple retreat into nature with a lunch we made, our cameras, and a nice day. we don't need no stinkin' citified summer camp! we don't need no stinkin' cemetary! we've got the entire new england range of forests, gorges, sanctuaries, beaches and preserves to enjoy our time together.

:)










simple notch filter







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