pass filter

pass filter

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• Coax Stubs and Band Pass Filters - Will additional coax stubs improve Band Pass Filter performance?
  [ Hits: 663 | Votes: 1 | Rating: 2 ]

• A Homebrew Z-Match Transmatch - A home made antenna tuner based on the W6JJZ basic concept that ,atches balanced loads without the use of lossy baluns, can provide band-pass filtering and harmonic attenuation.
  [ Hits: 1101 | Votes: 0 | Rating: 0 ]

• R3KBO EB104.ru Amateur Radio Products - R3KBO is an amateur radio club producing and developing amateur radio kits and assembled products including HF VHF Power Amplifiers or RF Power Kits and amplifier parts, low pass filfers, band pass filters, sourge protections, splitters and combiners, antenna switches
  [ Hits: 513 | Votes: 1 | Rating: 10 ]

• 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: 197 | Votes: 0 | Rating: 0 ]

• Microwave Filter Company - Microwave Filter Company is a leader in the design, development and manufacture of high quality passive electronic filter products in the 5 Hz to 50 GHz frequency spectrum.
  [ Hits: 124 | Votes: 0 | Rating: 0 ]

• Curing Alternator Whine - How to create a low pass filter able to reduce or even remove the noise generated from your car or truck alternator
  [ Hits: 517 | Votes: 2 | Rating: 9 ]
• A low-pass filter to remove alternator whine - How to build a low-pass filter to remove alternator whine from your car
  [ Hits: 398 | Votes: 1 | Rating: 10 ]

• 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: 399 | Votes: 1 | Rating: 1 ]

• VHF-UHF Diplexer - Diplexer is a passive device, a special filter circuit that seperates 2 different bands, not to be confused with the duplexer that usually separate 2 different frequencies on the same band.
  [ Hits: 1141 | Votes: 2 | Rating: 5 ]

• Lowpass filter for 30m - 30m lowpass filter for the Softrock Ensemble RXTX tranceiver.
  [ Hits: 352 | Votes: 0 | Rating: 0 ]
• Bandpass filter - A simple project for an effective home made band pass filter, designed for the portable field day usage
  [ Hits: 792 | Votes: 2 | Rating: 9 ]
• Contest Bandpass Filters - Build a set of W3NQN filters for multi-operator contesting
  [ Hits: 668 | Votes: 0 | Rating: 0 ]
• W3NQN TX filters - Building the W3NQN bandpass filters
  [ Hits: 430 | Votes: 0 | Rating: 0 ]
• Tunable BandPass Filter - A homemade tunable bandpass filter for all HF bands from 160m to 10m
  [ Hits: 1122 | Votes: 3 | Rating: 5.67 ]
• 30 Meter Band Pass Filter - A homemade band pass filter for the 30 meter band based on the original VE7BPO design
  [ Hits: 597 | Votes: 1 | Rating: 6 ]

• 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: 163 | Votes: 0 | Rating: 0 ]

• Characterizing a Bencher YA-1 Filter - Testing a Bencher YA-1 low-pass TVI filter with a spectrum analyzer with tracking generator.
  [ Hits: 220 | Votes: 0 | Rating: 0 ]
• 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 ]
• 144 Mhz Stop band TVI filters - A High pass filter will not help, use a stop-band filter to notch out the beast.
  [ Hits: 725 | Votes: 1 | Rating: 2 ]

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