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RF Filters
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- Tunekit
- Filter Tuning Kit for Windows is a electronic filter synthesis program and a practical filter tuning aid for actually designing and building a working filter
- TVI and BCI Filters
- TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.
- A low pass filter circuit
- A simple 7 element, Chebyshev low pass filter, rolls of at 30MHz. Attenuation is better than -40dB at 60MHz, -65dB at 90MHz, -80dB at 120MHz.
- Using ferrite for interference suppression
- Excellent guide to using ferrite cores for interference suppression.
Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File
- A cheap noise reducing speaker
- Noise Reduction on the Cheap
Alphabetical
- Easy bandpass filters
new
- Quick and easy bandpass filters for receiver input
by George Dobbs G3RJV
[Hits: 52 | Votes: 0 | Rating: 0.00] - Interactive Digital Filter Design
- This is an interactive filter design package, for designing digital filters
[Hits: 43 | Votes: 0 | Rating: 0.00] - 1.8-54 Mhz Low pass filter
- An easy to make HF low pass filter form high power by k8cu
[Hits: 240 | Votes: 0 | Rating: 0.00] - 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: 34 | Votes: 0 | Rating: 0.00] - A cheap noise reducing speaker
- Noise Reduction on the Cheap
[Hits: 602 | Votes: 0 | Rating: 0.00] - A low pass filter circuit
- A simple 7 element, Chebyshev low pass filter, rolls of at 30MHz. Attenuation is better than -40dB at 60MHz, -65dB at 90MHz, -80dB at 120MHz.
[Hits: 894 | Votes: 5 | Rating: 6.40] - Band Filters
- Experience of band filters, for a contest multi operator enviroenment
[Hits: 591 | Votes: 1 | Rating: 10.00] - Band-Pass Filters for HF Transceivers
- Do your multiple-transmitter field day or contest efforts suffer from intrastation interference ?
[Hits: 304 | Votes: 0 | Rating: 0.00] - 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: 348 | 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: 200 | Votes: 0 | Rating: 0.00] - Interdigital bandpass filter designer
- Fill out the form to design a bandpass filter as described in the January 1985 issue of Ham Radio Magazine. These filters are generally limited to frequencies above 200 MHZ because their size is slightly longer than 1/4 wavelength
[Hits: 74 | Votes: 0 | Rating: 0.00] - K2TR Coax Stub Filters
[Hits: 448 | Votes: 2 | Rating: 8.00] - LC Filter Design
- This is an interactive design package for designing analogue (i.e. hardware) filters made of inductors and capacitors (Ls and Cs).
[Hits: 104 | Votes: 0 | Rating: 0.00] - Mode J Desense Filter
- This type of filter can be used in a Mode J satellite station (uplink on 2m, downlink on 70cm) to reduce the problem of the uplink signal desensing the receiver
[Hits: 535 | Votes: 2 | Rating: 5.00] - 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: 315 | Votes: 0 | Rating: 0.00] - Online Microwave Filter Design and Analysis
- This site is dedicated to design and analysis of micro- and millimeter wave filters from 0.5 to above 100 GHz.
[Hits: 32 | Votes: 1 | Rating: 10.00] - The Ladder Filter
- Article by Lloyd Butler VK5BR
[Hits: 56 | Votes: 0 | Rating: 0.00] - 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: 152 | Votes: 0 | Rating: 0.00] - Tunekit
- Filter Tuning Kit for Windows is a electronic filter synthesis program and a practical filter tuning aid for actually designing and building a working filter
[Hits: 1775 | Votes: 4 | Rating: 9.00] - TVI and BCI Filters
- TVI and BCI bandpass and bandstop filters in SMD technique. Schematics and images.
[Hits: 1580 | Votes: 4 | Rating: 5.00] - TVi Basics - making filters
- TV Interference filters, making TVI filters, coaxial filters to eliminate TV interferences caused by radio frequency
[Hits: 59 | Votes: 0 | Rating: 0.00] - 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: 296 | Votes: 0 | Rating: 0.00] - Using ferrite for interference suppression
updated
- Excellent guide to using ferrite cores for interference suppression.
Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File
[Hits: 620 | Votes: 1 | Rating: 10.00] - Variable bandwidth cw filter
- As the sunspots return and DX propagation conditions to improve, the age old problem with QRM begins to show up on the amateur bands. Thif filter help you on improving reception
[Hits: 125 | Votes: 0 | Rating: 0.00] - 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: 286 | Votes: 0 | Rating: 0.00]
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