rf filter

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rf filter

62 links - and 2 categories

Manufacturers : Antenna Parts
  • CWS Coil Winding Specialist - Manufacturer of transformers, inductors coils and chokes. Custom winding, EMI / RFI Filters, Antenna Windings on ferrite rod, Antenna Winding on phenolic. Any antenna coil designs.
    [ Hits: 467 | Votes: 1 | Rating: 1 ]
Manufacturers : Electronic Components
  • Communication Coil - Communication Coil, Inc. designs and produces custom, high reliability Filter Networks, RF Coils, Chokes, Inductors, Baluns, Toroids and Power Magnetics for communications
    [ Hits: 712 | Votes: 0 | Rating: 0 ]
Manufacturers : Microwave
  • Cobham Microwave - Cobham Microwave has a long term experience in Microwave Systems and Components. Their five areas of capabilities are Systems and Components: Diodes & Modules, Ferrite Devices, RF Filters, and Waveguides.
    [ Hits: 402 | Votes: 0 | Rating: 0 ]
Manufacturers : Power Supply
  • Martek Power - Martek Power designs and manufactures a wide of high performance power supplies for various industries. Power supplies AC-DC, DC-AC inverters, DC-DC, EMI Filters
    [ Hits: 326 | Votes: 0 | Rating: 0 ]
Shopping and Services : Amateur Television
  • Garth RF Filters - ATV Filters, RF filters dealer
    [ Hits: 698 | Votes: 2 | Rating: 6.5 ]
Software : Contesting
  • Super Check Partial Database Files - The Super Check Partial database files provide a list of callsigns used by active contesters. The data comes from Cabrillo logs contributed by contesters themselves. Contributed logs from the past 24 months are used to create the database. These logs are combined and filtered so that they result in a fairly good (but not perfect) list. The files do not contain any QSO data, such as state, CQ zone, Maidenhead Grid Locator, etc. The dta files can be used with CT, WriteLog, TRlog, SD, N1MM Logger, NA, Win-Test, and others
    [ Hits: 1212 | Votes: 2 | Rating: 10 ]
Software : Filter Design
  • FILPRO - The most flexible and powerful Microwave and RF Filter and Multiplexer Design Software. Download Filpro-student.zip
    [ Hits: 5991 | Votes: 16 | Rating: 5.19 ]
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: 1954 | Votes: 1 | Rating: 10 ]
  • Interferences and filtering - General information on Filter passbands, interferences, TVI and RFI problems
    [ Hits: 1108 | Votes: 1 | Rating: 10 ]
  • 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: 920 | Votes: 4 | Rating: 9.5 ]
  • Band-Pass Filters for HF Transceivers - Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
    [ Hits: 3634 | Votes: 2 | Rating: 9 ]
  • The Ladder Filter - Article by Lloyd Butler VK5BR
    [ Hits: 731 | Votes: 2 | Rating: 8.5 ]
  • 5th order High Pass VHF Filter - Sometimes many VHF-UHF modern transceivers have problems with BROADCAST Interference and CROSS-modulation from FM commercial broadcast stations this article shows a simple Batteworth HI-Pass VHF Filter to reduce this problem
    [ Hits: 1097 | Votes: 7 | Rating: 5.57 ]
  • Design RF Filter
    [ Hits: 1321 | Votes: 2 | Rating: 4.5 ]
  • Coaxial Stub Filters - A range of easy-to-build RFI filters by John Regnault, G4SWX
    [ Hits: 1211 | Votes: 4 | Rating: 9.25 ]
  • Receiver Band-Pass Filters - Third-order Cauer filters can boost performance of multi-transmitter, multi-operator contest stations to the next level. The filters are practical and you donít need expensive test equipment to align them.
    [ Hits: 755 | Votes: 1 | Rating: 5 ]
Technical Reference : Homebrew
  • KI5YN QLF Filter - A microprocessor based interface designed to go between a standard Morse code key and a radio transmitter. The circuit receives a signal from the key, processes it, and re-transmits it to the radio.
    [ Hits: 287 | Votes: 0 | Rating: 0 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • The Rock-Mite CW Kit - The Rock-Mite is a 40m CW kit offered by Small Wonder Labs . It features built-in keyer, direct conversion receiver with a crystal RF bandpass filter, 500 milliwatts of power, and switchable frequency offsets to work around QRM
    [ Hits: 1082 | Votes: 0 | Rating: 0 ]
Technical Reference : Radio Frequency Interference
  • TVi Basics - making filters - TV Interference filters, making TVI filters, coaxial filters to eliminate TV interferences caused by radio frequency
    [ Hits: 908 | Votes: 0 | Rating: 0 ]
Technical Reference : Radio Programming Cable
  • Kenwood-to-PC Serial Interface - A circuit that connects an IBM compatible personal computer, running TR Log or CT (etc.) contest logging software, and Kenwood transceivers equipped with serial control ports. CW keying is also provided in this RFI filtered interface unit.
    [ Hits: 2035 | Votes: 3 | Rating: 4 ]

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