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Bandpass Filter Set
is this a good sub and amp?
V123BP subwoofer enclosure with V218XT 2-channel amplifier
V218XT 2-channel amplifier
» 150 watts RMS x 2 at 4 ohms
» variable high- and low-pass filters (50-250 Hz, 12 dB per octave)
» variable bass boost (0-18 dB at 45 Hz)
» 10-gauge power and ground leads recommended — wiring and hardware not included with amplifier
» speaker- and preamp-level inputs
» 10-5/16"W x 2-1/2"H x 10-5/16"D
» warranty: 2 years
V123BP bandpass subwoofer enclosure
» two 12" spruce pulp woofers with treated foam surrounds
» bandpass enclosure
» black carpet
» molded window and 4 tuned aluminum ports
» frequency response: 25-400 Hz
» 4-ohm stereo impedance (2 sets of terminals)
» recommended power range: 80-600 watts RMS (300 watts per woofer)
» sensitivity: 93 dB
» 28-1/2"W x 15-1/8"H x 17-3/8"D
» warranty: 2 years (woofers only)
it cost's $250
Not really.
Visonik amps are way overrated.
The bandpass box and subs need 600 watts RMS at 4 ohms.
If the amplifier can be bridged at 4 ohms, it will will give you 300 watts RMS, which is half what the box needs.
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Bruel & Kjaer Bandpass Filter Set Type 1612 |  |
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US $650.00 | 25d 19h 6m |
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70 MHz bandpass filter, 25 MHz bandwidth, set of two | |
0 Bid | US $24.00 | 3h 4m |
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70 MHz bandpass filter, 25 MHz bandwidth, set of four | |
0 Bid | US $45.00 | 2d 18h 1m |
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Bruel & Kjaer Bandpass Filter Set Type 1612 | |
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US $650.00 | 25d 19h 6m |
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Optical Bandpass Filters, Set of 6 for Flow Cytometry | |
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US $149.49 | 13d 20h 43m |
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70 MHz bandpass filter, 25 MHz bandwidth, set of two | |
0 Bid | US $24.00 | 3h 4m |
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70 MHz bandpass filter, 25 MHz bandwidth, set of four | |
0 Bid | US $45.00 | 2d 18h 1m |
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Decibel Products DB4001-3 VHF 2meter Bandpass filter set Ham NR | |
0 Bid | US $39.99 | 4d 3h 30m |
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P-Blue GFP/DAPI Bandpass Filter Set for Nikon SMZ Stereo Microscope | |
0 Bid | US $699.00 | 4d 7h 32m |
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Microwave Bandpass Filters for Wideband Communications (Hardcover) $189.7 This book will appeal to scientists and engineers who are concerned with the design of microwave wideband devices and systems. For advanced (ultra)-wideband wireless systems, the necessity and design methodology of wideband filters will be discussed with reference to the inherent limitation in fractional bandwidth of classical bandpass filters. Besides the detailed working principles, a large number of design examples are demonstrated, which can be easily followed and modified by the readers to achieve their own desired specifications. Therefore, this book is of interest not only to students and researchers from academia, but also to design engineers in industry. With the help of complete design procedures and tabulated design parameters, even those with little filter design experience, will find this book to be a useful design guideline and reference, which can free them from tedious computer-aided full-wave electromagnetic simulations. Among different design proposals, wideband bandpass filters based on the multi-mode resonator have demonstrated many unparalleled attractive features, including a simple design methodology, compact size, low loss and good linearity in the wide passband, enhanced out-of-band rejection, and easy integration with other circuits/antennas. A conventional bandpass filter works under single dominant resonant modes of a few cascaded transmission line resonators and its operating bandwidth is widened via enhanced coupling between the adjacent resonators. However, this traditional approach needs an extremely high coupling degree of coupled-lines while producing a narrow upper stopband between the dominant and harmonic bands. As a sequence, the desired dominant passband is restricted to an extent less than 60% in fractional bandwidth. To circumvent these issues and break with the tradition, a filter based on the multiple resonant modes was initially introduced in 2000 by the first author of this book. Based on this nov |
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Air Filter Kit (set) $5 Air Filter Kit (set) |
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SJ1 Color Filter Set $22.95 SJ1 COLOR FILTER SET |
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10 Dual Bandpass System(Pack of 1) $277.99 Pyramid Bnps102 Dual Bandpass System With Neon Accent Lighting (10"; 1000-Watt) |
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Orion 1.25 Extra-Narrowband Tri-color CCD Filter Set $375.99 Imaging with extra-narrowband filters is the latest technique used by amateur astronomers for producing striking, high-contrast color CCD astroimages of emission nebulas. And it works even in heavily light polluted or moonlit skies. What you need is this three-filter set, which consists of Orion Hydrogen-alpha (#5587), Oxygen-III (#5578), and Sulfur-II (#5579) extra-narrowband imaging filters (1.25"). These specialized "line" filters transmit only the specific wavelengths of light important in emission nebulas, while blocking out all the rest. The filters are designed for use with the Orion StarShoot Deep Space CCD Monochrome Imager II (#52083) and Manual 5-Filter Wheel (#5520), or with similar cameras. The H-alpha filter has a transmission of 90% at the hydrogen-alpha line of 656.3nm. The O-III filter passes light at the 500.7nm wavelength (the Oxygen-III line) with very high 90% transmission. And the S-II filter passes light at the 672.4nm wavelength (the Sulfur-II line) with 90% transmission. All three filters have a FWHM bandpass of 7nm. So if you're ready to go beyond RGB imaging and capture your favorite nebulas in a revealing new light – no matter how light-polluted your skies -- add our Extra-Narrowband CCD Imaging Filter Set to your imaging repertoire! Includes a protective plastic case for each filter. One-year limited warranty. |
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Electro-Harmonix Classics Tube EQ Guitar Effects Pedal $194.7 It enhances your tone and gives you far more options than a regular EQ. 2 filter sections offer tremendous tweakability. The first offers passive high and low shelving functions corresponding to the Bass and Treble knobs on the pedal. The second section is an active parametric bandpass filter that lets you set the center frequency and "Q."It's equipped with standard input and output jacks plus an expression pedal input that lets you sweep the center frequency of the bandpass filter for wah effects. |
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Electro-Harmonix Classics Tube Eq Guitar Effects Pedal $194.7 It enhances your tone and gives you far more options than a regular EQ. 2 filter sections offer tremendous tweakability. The first offers passive high and low shelving functions corresponding to the Bass and Treble knobs on the pedal. The second section is an active parametric bandpass filter that lets you set the center frequency and "Q."It's equipped with standard input and output jacks plus an expression pedal input that lets you sweep the center frequency of the bandpass filter for wah effects. |
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2 Orion Extra-Narrowband Hydrogen-Alpha Filter $359.99 If you are using a monochrome CCD camera like Orion's Parsec 8300M, an extra-narrowband imaging filter will bring you incredible detail of exciting emission nebulae. Orion's new 2" Hydrogen-Alpha Filter is one of a set of three filters designed to blacken the background sky and increase the contrast of emission nebulae in monochrome astrophotography. Imaging with narrowband filters is the latest technique used by amateur astronomers for producing striking, high-contrast color CCD astrophotography of emission nebulae. These specialized line filters transmit only the specific wavelengths of light important in emission nebulae while blocking out all the rest. Orion's new 2" Hydrogen-Alpha Filter has a full-width half maximum (FWHM) bandpass of just 7nm, ensuring high-contrast images, even in heavily light-polluted or brightly moonlit skies. The filter can be used separately or in combination with a filter wheel for advanced tri-color imaging of emission nebulae. Reveal and capture your favorite nebulae in striking high-contrast astrophotography, even in light polluted skies with Orion's Extra-Narrowband Hydrogen-Alpha Imaging Filter. It will truly add a new dimension to your astrophotography! Includes a protective plastic case. |
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2 Orion Extra-Narrowband Oxygen-III Filter $359.99 It is all about details. Orions 2" Extra-Narrowband Oxygen-III Filter is one of a set of three filters designed to bring you bright and beautiful images of emission nebulae in monochrome astrophotography. Using extra-narrowband filters is the latest technique for producing striking, high-contrast color CCD astrophotography of emission nebulae. If you're using a monochrome CCD camera like Orion's Parsec 8300M, these specialized line filters are the perfect complement. Orion's 2" Oxygen-III Filter has a full-width half maximum (FWHM) bandpass of just 7nm, ensuring high-contrast images, even in heavily light-polluted or brightly moonlit skies. The filter can be used separately or in combination with a filter wheel for advanced tri-color imaging of emission nebulae. Capture your favorite nebulae in high-contrast, even if you live in the city or light-polluted areas. Just add Orions 2" Extra-Narrowband Oxygen-III Filter to your camera bag and see the difference a blackened background sky creates. Includes a protective plastic case. |
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2 Orion Extra-Narrowband Sulfur-II Filter $359.99 Effectively blacken the background sky with extra-narrowband filters to produce striking, high-contrast astrophotography of emission nebulae. Orion's 2" Extra-Narrowband Sulfur-II Imaging Filter will do just that. It is ideal for use with monochrome CCD cameras like Orion's Parsec 8300M. It's one of a set of three filters designed to capture details of faint emission nebulae in monochrome astrophotography by creating high-contrast. These specialized line filters transmit only the specific wavelengths of light import in emission nebulae, while blocking out the rest. Orion's 2" Extra-Narrowband Sulfur-II Imaging Filter has a full-width half maximum (FWHM) bandpass of just 7nm, ensuring high-contrast images, even in heavily light-polluted or brightly moonlit skies. This filter can be used separately or in combination with a filter wheel for advanced tri-color astrophotography. Go beyond RGB imaging and capture your favorite nebulae in a revealing new light - no matter how light polluted your skies. Add Orion's 2" Extra-Narrowband Sulfur-II Imaging Filter and see the difference! Includes a protective plastic case. |
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Blue Wave series Dual 10 600-Watt Bandpass System $68.94 Blue Wave series Dual 10" 600-Watt Bandpass System |
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85747 Air Filter Set Complete $8.46 Filter Complete |
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FILTER SET $66.5 A new air filter kit will improve both performance and economy, allowing the engine to breath more easily, and at the same type doing a.. |
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SJ-3 Color Filter Set for SB900 $22.95 Nikon's SJ-3 Color Filter Set for SB900 |
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LowPass Filter $79.66 High Quality Content by WIKIPEDIA articles A lowpass filter is a filter that passes lowfrequency signals but attenuates (reduces the amplitude of) signals with frequencies higher than the cutoff frequency. The actual amount of attenuation for each frequency varies from filter to filter. It is sometimes called a highcut filter, or treble cut filter when used in audio applications. A lowpass filter is the opposite of a highpass filter, and a bandpass filter is a combination of a lowpass and a highpass. The concept of a lowpass filter exists in many different forms, including electronic circuits (like a hiss filter used in audio), digital algorithms for smoothing sets of data, acoustic barriers, blurring of images, and so on. Lowpass filters play the same role in signal processing that moving averages do in some other fields, such as finance; both tools provide a smoother form of a signal which removes the shortterm oscillations, leaving only the longterm trend. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 96 Publication Date: 2009/12/08 Language: English Dimensions: 5.98 x 9.01 x 0.22 inches |
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ElectroKraft Ring Modulator + Low Bandpass Filter / TR-606
How to set up a wireless access point?
I want to set up a wireless access point, using:
- 1 linksys radio
- 1 bandpass channel filter
- 1 2watt power
- 1 antenna splitter(1->3)
- 3 external antenna(27db each)
i've tried above configuration but resulted in many errors (can't connect, unstable ping reply, etc)... my questions are:
1. what is the correct configuration?
2. what is the minimum distance and maximum distance if i use 2 watt power divided by 3 (27db) antenna? and how about the noise? because I can't connect to the AP if I use the power ampli, connect successfully if i don't use the power ampli...but the coverage area is very small
thanx for your answers....
Well,If you have no problem in configuring your wireless access point and your clients can recognize it`s SSID then you have a signal strength problem.
There are many factors affecting your wireless signals.Some of the most important ones are:Over usage of cell phones specially GSM ones.Fluorescent lights(Really affective),channel conflict(There might be a signal of another access point working near you,the default channel is 11 try to use another one).
You can change the working channel in your access point management console.
I suggest that you bring a laptop near your access point and test if the signal works fine,then do the above instructions except for changing the channel.
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