low pass filters

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low pass filters

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Antennas : Beverage
  • Beverage switching box - Sharing beverage antennas with this switch boxes is possible. This article describes a 6-position remote antenna switch for Beverage antennas on 3 bands (160m, 80m, 40m). It allows selecting one of 6 antennas for each band without affecting other receivers. The system uses a control box with a rotary switch and a separate splitting box with bandpass filters for each band.
    [ Hits: 5510 | Votes: 3 | Rating: 4.33 ]
Manufacturers : Antenna Switches
  • Array Solutions - WX0B - Stacking and phasing HF and 6m arrays antenna switches and contesting devices. Custom low band antenna arrays, bandpass filters,commercial/Mil STd filters,microwave components, commercial broadcast filters.
    [ Hits: 5704 | Votes: 10 | Rating: 6.2 ]
Manufacturers : Antennas : HF : Active antennas
  • Ameco - Text books relating to amateur radio (HAM radio), highpass and lowpass power filters, transmitter test loads (dummy loads), study tapes and disks to learn morse code, transceiver preamplifiers, antenna signal boosters.
    [ Hits: 2225 | Votes: 0 | Rating: 0 ]
Manufacturers : Antennas : HF : Yagi Antennas
  • WIMO - All kinds of antennas, RF connectors, radio transceivers and accessories like power supplies, morse keys, lowpass filters and so on.
    [ Hits: 19296 | Votes: 37 | Rating: 5.59 ]
Manufacturers : Filters
  • Heros Technology Ltd - HF Radio Preselectors,BCB filters,Low Pass filters,Band Pass filter
    [ Hits: 602 | Votes: 2 | Rating: 10 ]
  • Idiom Press - CW keyers, Logikey, and antenna rotator controll like rotor-ez, and active audio low pass filters.
    [ Hits: 2701 | Votes: 2 | Rating: 9.5 ]
  • Anatech Electronics - Anatech Electronics manufactures RF filters for communication systems, Military and commercial, as well as RF filters for Wireless applications. Products include, Band pass filters, Duplexers, Low pass, high pass and bandstop filters. Additional products such as RF cable assembly also available.
    [ Hits: 282 | Votes: 1 | Rating: 10 ]
Manufacturers : QRP Kits
  • HF Projects Kits - Provide service, quality home construction projects, travel antennas, masts and bases, hf and vhf amplifiers, low pass filters and z-match tuners
    [ Hits: 749 | Votes: 0 | Rating: 0 ]
Software : Circuit Design
  • SVC Filter - Filter design software. A program designed to expedite the design and analysis of lowpass (and highpass) filters with nearest 5% component values. SVCfilter is 32-bit Windows electrical filter design software nicely written to help the radio amateur, technician or engineer design and analyze lumped-element lowpass and highpass filters.
    [ Hits: 1193 | Votes: 1 | Rating: 10 ]
Software : Filter Design
  • FilterCAD - A free computer aided design program to help users without special expertise in filter design to create filters using Linear Technology's monolithic filter ICs. With FilterCAD, you can design lowpass, highpass, bandpass and notch filters
    [ Hits: 11769 | Votes: 28 | Rating: 5.03 ]
  • AADE Filter Design  updated - Dowwnload this free windows programs to design Butterworth, Chebyshev, Elliptic (Caur), Bessel, Legendre and Linear Phase low-pass, high-pass, band-Pass, and band-reject filters. Coupled Resonator band-pass filters
    [ Hits: 24850 | Votes: 114 | Rating: 7.17 ]
  • ScopeIIR - ScopeIIR: an Infinite Impulse Response (IIR) digital filter design tool for Windows. It designs high-order IIR filters based on analog filter prototypes, and can design lowpass, highpass, bandpass, and bandstop filters.
    [ Hits: 778 | Votes: 2 | Rating: 5.5 ]
Technical Reference : Calculators
  • FIlters calculator - Passive Band-Pass Filter, low-pass filter calculator
    [ Hits: 418 | Votes: 3 | Rating: 2.33 ]
Technical Reference : Filters
  • Second-Harmonic-Optimized Low-Pass Filters - Sometimes we need a little more output filtering than traditional designs offer. Look at a new filter that can give you that extra boost. QST article by W3NQN
    [ Hits: 879 | Votes: 0 | Rating: 0 ]
  • Low Pass Filters - Article explaining electronic network of low pass filters
    [ Hits: 816 | Votes: 0 | Rating: 0 ]
  • Low-Pass Active Filter Designer - Javascript filter design page with introduction to low pass filters by k7mem
    [ Hits: 619 | Votes: 1 | Rating: 1 ]
  • W3LPL Receiving Bandpass Filters - Project of receive only filters optimized for minimal loss and very high rejection of frequencies below 75% of the filter center frequency by K1TTT
    [ Hits: 1083 | Votes: 0 | Rating: 0 ]
  • About Cavity Filters - Cavity filters are tipically circuitry behind a duplexer that allow only certain frequencies to pass
    [ Hits: 471 | Votes: 3 | Rating: 5.33 ]
Technical Reference : TVI Filters
  • TVI filters - Examples of absorbtive low-pass filters in which the unwanted high-frequency energy is separated from the wanted output and then dissipated in matched resistors
    [ Hits: 356 | Votes: 0 | Rating: 0 ]
  • Television Notch Filters - Intersting article about TV interference, with several examples of TVI Filters, to reduce the passage of any RF above the 30 MHz including commercial Low Pass Filters, home made notch filters or coaxial filters.
    [ Hits: 454 | Votes: 2 | Rating: 3 ]

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