RF Filter | Click ↓ | Votes ↓ | Flag ↓ |
1.8 to 54 MHz Low Pass Filter Works on all amateur bands from 1.8 MHz through 54 MHz | ![]() | ||
5th order High Pass VHF Filter, SV1BSX Sometimes many VHF-UHF modern tranceivers have problems | ![]() | ||
5 bands remote switchable BPF, ON7EQ The performances of this band filter are very comparable | ![]() | ||
50 MHZ low pass filter, W7GJ Design and performance of a QRO low pass filter for 50 MHz | ![]() | ||
70Mc/s Low Pass Filter, PA3CSG The filter published there is working without problem and needs no or very little tuning | ![]() | ||
70 MHz Low Pass filter with my original 4m tranverter system which had a decent pa i needed a lpf low pass filter on the output | ![]() | ||
A cheap noise reducing speaker Spike noise is a high frequency pulse that rides | ![]() | ||
A 50MHz High Pass TVI Filter designed to be placed in the 75 Ohm coax | ![]() | ||
A home-built low-pass filter for 4m This unit uses four capacitors, only two of which are variables Jackson | ![]() | ||
A diode-switched band-pass filter expensive than working with mechanical switch | ![]() | ||
A low pass filter circuit There are applications where a particular band, or spread | ![]() | ||
An L/C audio bandpass filter, K7OEI response to obtain the goal of a reasonable 300-2400 Hz filter | ![]() | ||
Audio Filter and Speakers Passive audio filters have been around for many years,If your receiver didn't have a CW filter, this little jewel worked fairly well | ![]() | ||
Band Filters Band pass filter circuit & transfer function active & passive | ![]() | ||
Band-Pass Filters for HF Transceivers band phase noise interference is not usually | ![]() | ||
Clean Up Your Signals with Band-Pass Filters 10 meter filter, all the other filters are housed | ![]() | ||
Clean Up Your Signals with Band-Pass Filters An inside view of 160 meter and 10 meter BPF | ![]() | ||
Crystal band pass filters for QRSS applications, M0AYF The very narrow bandwidths associated with crystal filters does not pose a problem for qrss | ![]() | ||
Coaxial Stub Filters, G3SEK You should not need to use a narrowband filter after a transmitter | ![]() | ||
Coax Stub Filters This calculator is suiteable to calculate the length of a piece of coaxial cable to produce a notch at a desired frequency | ![]() | ||
Configurando filtros con un generador de ruido, LU1AR El circuito de este generador de ruido lo bajé de la webv | ![]() | ||
Design a custom Interdigital Bandpass Filter Fill out the form below to design a bandpass filter as described | ![]() | ||
Design RF Filter Design a third order low-pass Chebyshev filter with a cutoff frequency | ![]() | ||
Easy bandpass filters A series of Bandpass Filters designed for the input tuning | ![]() | ||
Filtro Passa Basso anti TVI per HF progettare e realizzare un filtro passa basso per applicazione TVI | ![]() | ||
Filtro per l'ascolto in LF, IZ2DAY serve per attenuare i segnali al di sopra dei 450 KHZ | ![]() | ||
Filters and Ferrites in EMC varius filters and ferrites for solving amateur radio EMC | ![]() | ||
Filtres 144Mhz et 50 Mhz EME traffic for example requires a radiated power | ![]() | ||
Filtro da rete per apparati, IK0RKS Essendo rimasto lusingato dai risultati del filtro direte sull’alimentatore per gli apparati a 12 volt | ![]() | ||
Filtro ascolto LF ,IZ2DAY Questo filtro si interpone tra voltmetro selettivo o un qualsiasi ricevitore e antenna | ![]() | ||
Filtro antidisturbo RFI per alimentatori switching PC, I6IBE Questi filtri erano montati di serie all'interno di TUTTI gli alimentatori per Personal Computer | ![]() | ||
How to make a coax notch or bandpass filter, DL4XAV both stubs are 1/4 lambda the line between the stubs is 1/4 lambda | ![]() | ||
High-Pass Filter Design A high-pass filter's task is just the opposite of a low-pass filter | ![]() | ||
High Power Lowpass Filter for 145 MHz, DJ9KW build a low-pass filter for 145 MHz as required after power amplifiers | ![]() | ||
HF band pass filter, ON7EQ For a 5 band filter I used following parts out of my junk box | ![]() | ||
Homebrew narrow CW filter, IK1ZYW Besides the same performance of YF-122C, it feature | ![]() | ||
Home Brew CW Filter If your receiver's audio passband bandwidth is too wide and other nearby signals you need a cw filter | ![]() | ||
Interferences and filtering interference can be used to select a narrow frequency | ![]() | ||
Junk Box NDB Low Pass Filter With winter approaching, many HAM and SWL hobbyists find intrigue in tuning in NDB | ![]() | ||
LC band pass filter circuit Like many people, I have a general coverage receiver | ![]() | ||
Low Pass Filter Construction remove the insulation from the wire at the base of the core as shown | ![]() | ||
Mode J Desense Filter This type of filter can be used in a Mode J satellite station | ![]() | ||
Noise suppression with X-phase II, DL0HST QRM eliminator, of radio interference | ![]() | ||
Narrow Band-Pass filter for HF Comparisons between Chebyshev and Butterworth filters | ![]() | ||
Online Microwave Filter Design and Analysis This site is dedicated to design and analysis of micro- and millimeter | ![]() | ||
Passive Low Pass Filter Basically, an electrical filter is a circuit that can be designed to modify | ![]() | ||
PCB low pass filters , PA3CSG Describes an simple low pass filter, according to his finding suitable for 2 kW power | ![]() | ||
Projects Cw Filters This circuit may be used to eliminate an unwanted carrier when trying to copy weak stations | ![]() | ||
QLF Filter, KI5YN The QLF filter is a microprocessor based interface designed to go between | ![]() | ||
QRM Eleminator,DC2WK Have some times problems with local noise on the lower bands.view this project QRM Eliminator | ![]() | ||
Receiver Band-Pass Filters attenuating the phase noise and harmonics of the typical | ![]() | ||
Realization of an anti-TVI filter suitable spectral purity of the order of -60 dB | ![]() | ||
Receiving Bandpass Filters, W3LPL Attenuation 160-15m filters 70db rejection of other bands. 10m filte | ![]() | ||
Second-Harmonic-Optimized Low-Pass Filters the FCC requires transmitter spurious output | ![]() | ||
Some Simple Strategies for Phone RFI, W1AEX 1000 watts on 160 and 75 meters that my telephones were susceptible to fairly significant RFI problems | ![]() | ||
Simple band pass filter for 23cm a 3-pole and a 5-pole, which one you use depends on how selective you want the filter to be, and the insertion loss to be tolerated | ![]() | ||
The Ladder Filter In home-brewing a single sideband (SSB) transmitter, an essential | ![]() | ||
The NVARC Ugly Filter Project First, this is not a construction article. This article describes | ![]() | ||
TVI Stop filter What to do, if your neighbour comes banging at your door just in that moment you want work the DX of the year | ![]() | ||
TVI and BCI Filters Therefore we, ham radio operators, should stop TVI etc | ![]() | ||
TVI filters, LA8AK low-pass filters in which the unwanted high-frequenc | ![]() | ||
TVi Basics - making filters Grounding, Screening, Filtering, and Rusty Bolts Effects | ![]() | ||
Using Band-Pass Filters The cut-off frequency or ƒc point in a simple RC passive filter can be accurately | ![]() | ||
Un semplice filtro anti TVI, IW2FND per eliminare i disturbi di modo comune captati dal cavo coassiale | ![]() | ||
Using ferrite for interference suppression One of the most used yet least understood techniques | ![]() | ||
Variable RF Signal Sampler RF power into the sample port | ![]() | ||
VHF Broadcast Passband Filter, DF9CY In some cases the input filter of a VHF Broadcast receiver for 87.5 - 108 MHz | ![]() | ||
YCCC 6 Band Receive Bandpass filter This is a 6-band receive only filter designed to protect your receiver | ![]() | ||
TVI filters, VK3NX The attenuation in the 2m band was >80dB | ![]() | ||
XPhase Interference reduction,DL2SBA The function of the XPhase is based on the fact that the interfering signal | ![]() | ||
Interferences and filtering | ![]() | ||
Design a custom Interdigital Bandpass Filter | ![]() |