četvrtak, 27.10.2011.


Rf Saw Filter : Low Pass Filter Coefficients.

Rf Saw Filter

rf saw filter

    saw filter
  • Electronic filters are electronic circuits which perform signal processing functions, specifically to remove unwanted frequency components from the signal, to enhance wanted ones, or both.

  • A filter that allows the receiving device to focus in on a very specific part of the spectrum.

  • rutherfordium: a radioactive transuranic element which has been synthesized

  • reticular formation: a complex neural network in the central core of the brainstem; monitors the state of the body and functions in such processes as arousal and sleep and attention and muscle tone

  • releasing factor: a substance produced by the hypothalamus that is capable of accelerating the secretion of a given hormone by the anterior pituitary gland

  • The chemical element rutherfordium

rf saw filter - Audix RAD

Audix RAD 360 Wireless Microphone system, Black (614-638 MHz)

Audix RAD 360 Wireless Microphone system, Black (614-638 MHz)

The Audix RAD-360 is a frequency agile UHF wireless microphone system with 193 selectable frequencies and dual tuner, true diversity receivers. Operating in the UHF band between 614-638 MHz, The RAD-360 is designed for a wide range of professional applications. Users of this wireless must be eligible and licensed under FCC regulation Part 74.832. The RAD-360 features easy-to-use and easy-to-read menu driven displays in every component of the system. Both the receiver and the transmitter are synthesizer controlled via Phase Locked Loop (PLL) for stable Radio Frequency (RF) signals. The RAD-360 handheld transmitters are constructed with durable metal housings and feature legendary performance of the OM-series dynamic microphones from Audix—microphones that have set standards in the pro audio industry for clarity, feedback rejection, and dependability. The hand-held transmitters have a convenient gain setting control that will enable a -10, -20, or -30 dB pad to help prevent overload or distortion. The modular design of the threaded capsule housing assembly means that the user can easily change the transmitter mic capsule from one model to another in a matter of seconds. The body pack transmitter, constructed of durable ABS composite, is housed in a protective metal cradle. It may be used with lavaliere, headset, and specialty instrument microphones. A guitar system is also available. Mic/line input adjustments are provided as well as sensitivity/gain control. The receiver is rack-mountable for either 1 or 2 systems into a standard 19-inch rack with optional rack mount kits. An optional Amplified Antenna Distribution System (ADS-4) is available, allowing up to 4 systems to be run off a single pair of antennas, and one DC power supply. An optional antenna booster (AB-1), which can be wall-mounted or mic stand mounted, is available to strengthen incoming signals, improve signal to noise ratio, and increase the RF range.

80% (12)



Shot wide open, M8 with Voigtlander 35mm f/1.4 MC lens.
So, I returned the Panasonic GF1 when I saw that the same store was selling a used Leica M8 for a great deal. I bargained and got even a better deal, so, returned the GF1.

I've always enjoyed shooting with RF cameras, so, getting the M8 instead of settling on the GF1 was definitely a good move for me. While I love the GF1 for what it is (had a chance to use it for a week), but 2x crop factor always bothered me a bit when I shoot with prime lenses; The zoom lens that came with it covered enough focal lenght but wasn't quite fast enough although the quality was quite good for a stock lens.

Also, since I was shooting manually with m-mount prime lenses, I had to rely a lot on the EVF (electronic viewfinder) to get the right focus), but the finder was quite low-res that sometimes it was hard to tell whether I was getting a perfect focus. I also wished that the GF1 had a build-in image stabilizer. Especially with the 2x crop factor, it would have helped if I had some kind of image stabilization. I could see how shaky my hand-holding the camera was when I use the zoom-in to focus.

Well, M8 has a nice, bright range finder, allowing me to see the framelines for both te 35 and 50 lens. It does have 1.33x crop factor, but it's not significant even compared with my Canon T1i. Eventhough I've only shot with the M8 for one day, I like how it feels and the impressed with th image quality of it. One thing I don't like about the camera is the LCD screen. It's low-res. Typically, this wouldn't be a big issue but I if I were to take the camera to a store to test out (used) lenses, I would never be able to tell how sharp or in-focus the lenses are just by checking out the screen.

I have also seen the IR issue (making certain synthetic black fabrics appear purple). I will soon get IR filters for my lenses, but meanwhile, I can do with B&W images.

Shy Kids

Shy Kids

Konica Hexar RF
Konica Hexanon 50mm F2
Kodak Tri-X 400
HC110B, 6.5mins
Red Filter

Saw these 2 kids playing right outside the Buddha Tooth Relic Temple, Chinatown, Singapore. Decided to went ahead & take a snap of them. Love the contrast the red filter gives.

rf saw filter

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