bandpass filter

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bandpass filter

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Antennas : Feed Lines : Coax Stubs Antennas : K9AY
  • K9AY 160m 80m receiving loop antenna - A K9AY loop antenna project done with Far Circuits pc boards for the antenna switch and bandpass filter and preamp by K7SFN
    [ Hits: 987 | Votes: 1 | Rating: 7 ]
Manufacturers : Antennas : HF
  • HyEnd Company - HyEnd is a dutch amateur radio antenna manufacturer. Makers of the popular HyEndFeed Antennas, produce Baluns, bandpass filters and selle Line isolators, coax cables and connectors.
    [ Hits: 196 | Votes: 0 | Rating: 0 ]
Software : Circuit Design
  • mini Ring-Core-Calculator - Calculate windings on ferrite cores - The program can be used to calculate inductors (coils) and their number of turns on ferrite cores, ferrite shells and air coils. These can be used for baluns, Ununs, bandpass filters, low pass filters, resonant circuits, and more. The technical specifications of the cores are already integrated in the program. Application is free and runs on Windows 32 bit versions only. To make it run on Windows 10 64 bit need to be unzipped in a single folder.
    [ Hits: 390 | Votes: 1 | Rating: 1 ]
Software : Filter Design
  • 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: 777 | Votes: 2 | Rating: 5.5 ]
Technical Reference : Calculators
  • Bandpass Filter Calculator - Passive Bandpass Filter online calculator and filter formulas. Active Inverting Op Amp Bandpass Filters, Active Noninverting Op Amp Bandpass Filter, just enter the Low ir High Cutoff Frequency
    [ Hits: 158 | Votes: 3 | Rating: 5.33 ]
Technical Reference : Filters
  • Bandpass filter - A simple project for an effective home made band pass filter, designed for the portable field day usage
    [ Hits: 784 | Votes: 2 | Rating: 9 ]
  • Contest Bandpass Filters - Build a set of W3NQN filters for multi-operator contesting
    [ Hits: 665 | Votes: 0 | Rating: 0 ]
  • W3NQN TX filters - Building the W3NQN bandpass filters
    [ Hits: 426 | Votes: 0 | Rating: 0 ]
  • Tunable BandPass Filter - A homemade tunable bandpass filter for all HF bands from 160m to 10m
    [ Hits: 1119 | Votes: 3 | Rating: 5.67 ]
  • 20m 30m 40m Bandpass Filters - Homemade LC Bandpass Filters for 20M, 30M, 40M In multi-station environments like special events, field day, portable operating, is very important to protect receivers from excessively strong signals. Bandpass filters help to protect your transceivers.
    [ Hits: 376 | Votes: 1 | Rating: 10 ]
Technical Reference : HF Radios
  • PT40 7 MHz Transceiver by AA3SJ - Home made 40 meter transceiver project. The receiver is a Progressive Receiver with a few modifications. The Transmitter is a modified MFJ Cub circuit. Includes schematic and circuit diagrams for Receive Input Filter, 3-Pole 500 Hz Cohn Filter and 7 MHz Double Tuned Bandpass Filter
    [ Hits: 162 | Votes: 0 | Rating: 0 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • 17 meter QRP Transmitter - 1-watt 17-meter cw transmitter that was originally done about 10 years ago as a club project for RAMS, the Radio Amateur Megacycle Society. It uses a VXO, rather novel at the time. It also uses a bandpass filter at the output rather than the usual lowpass
    [ Hits: 122 | Votes: 0 | Rating: 0 ]

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