pass filter

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pass filter

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Antennas : 40M : 40 meter Loop Antennas
  • Receiving antenna for low bands  pop - K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter
    [ Hits: 18514 | Votes: 9 | Rating: 8.33 ]
Manufacturers : Filters
  • Accute Micro - China supplier of ceramic bandpass filters in standard resonator sizes of 2~6mm , 8mm , 10mm and 12mm with freqency from 400Mhz~4Ghz and sections 2~10
    [ Hits: 354 | Votes: 0 | Rating: 0.00 ]
Operating Modes : Amateur Television
  • UHF Reject filter - This filter is a 0.1 dB Tschebychev lowpass with a rejection of 90 dB or better at 430 MHz, and 0.2 dB insertion loss at 72 MHz.
    [ Hits: 1134 | Votes: 1 | Rating: 10.00 ]
Shopping and Services : Electronic Components
  • All American - Distributor of electronic components, ull range of semiconductors (active components), including relays, circuit breakers, transistors, diodes, memory devices, microprocessors, microcontrollers, and other integrated cuircuits, as well as passive components, such as capacitors, resistors, inductors, and electromechanical products, including cable, switches, connectors, filters, and sockets.
    [ Hits: 902 | Votes: 0 | Rating: 0.00 ]
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: 1087 | Votes: 1 | Rating: 10.00 ]
  • Helical - A graphics-intensive bandpass filter program based on the helical resonator.
    [ Hits: 1710 | Votes: 2 | Rating: 9.00 ]
Technical Reference : Audio
  • Audio processor for SSB transceiver - This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.
    [ Hits: 1310 | Votes: 1 | Rating: 1.00 ]
Technical Reference : Duplexers
  • A low cost UHF/VHF duplexer - Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
    [ Hits: 7932 | Votes: 14 | Rating: 5.50 ]
Technical Reference : Filters
  • A diode-switched band-pass filter - High speed silicn diodes work well as RF switches. This article describes how to use diodes for selecting two or more filters ARRL QST article by W1FB
    [ Hits: 1859 | Votes: 1 | Rating: 10.00 ]
  • Interferences and filtering - General information on Filter passbands, interferences, TVI and RFI problems
    [ Hits: 1083 | Votes: 1 | Rating: 10.00 ]
  • YCCC 6 Band Receive Bandpass filter - This is a 6 band receive only filter designed to protect your receiver front end and provide 45dB reject at the stop bands.
    [ Hits: 1543 | Votes: 2 | Rating: 9.50 ]
  • The NVARC Ugly Filter Project - Project to build sets of band pass transmitting filters for reducing the interference between HF transceivers operated in close proximity
    [ Hits: 888 | Votes: 4 | Rating: 9.50 ]
  • Narrow Band-Pass filter for HF - Band-pass filters can be critical components in competitive stations. This setup may help put your station on the map.
    [ Hits: 2062 | Votes: 1 | Rating: 1.00 ]
  • Clean Up Your Signals with Band-Pass Filters - These inexpensive, easily built filters can be the buffer you need between the signals you want to hear and send and those you don't!
    [ Hits: 2940 | Votes: 0 | Rating: 0.00 ]
  • Clean Up Your Signals with Band-Pass Filters part 2 - Part 2 You're now much closer to saying goodbye to your unwanted signal problems!
    [ Hits: 1143 | Votes: 0 | Rating: 0.00 ]
  • Band-Pass Filters for HF Transceivers - Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
    [ Hits: 3475 | Votes: 2 | Rating: 9.00 ]
  • Easy bandpass filters - Quick and easy bandpass filters for receiver input by George Dobbs G3RJV
    [ Hits: 1921 | Votes: 1 | Rating: 9.00 ]
  • 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: 704 | Votes: 0 | Rating: 0.00 ]
  • 500 KHz Low Pass Filter - This article describes a shielded low pass filter with a cut off frequency of about 500 KHz. It is built with components suitable for receiving, and was designed to use in front of a low frequency receiver for LOWFER work.
    [ Hits: 1118 | Votes: 8 | Rating: 3.00 ]
Technical Reference : Test Equipment : Signal Generator
  • VHF signal generator - a simple VHF signal generator in order to measure the characteristic of low pass filter.
    [ Hits: 3228 | Votes: 3 | Rating: 6.33 ]

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