low pass filter49 links
Antennas : 40M : 40 meter Loop Antennas
- Receiving antenna for low bands
- K9AY loop antenna installed at PA6Z Contest group. This is a receiving antennas for the low bands (160m, 80m and 40m). Include schematics and info on a building the control box, preamplifier and low-pass filter
[ Hits: 18152 | Votes: 9 | Rating: 8.33 ]
- Radio Filters.Com
- Low Cost FM Notch Filters: Radio Filters.com, manufactures frequency control products including band pass, notch, reject, electronic filters
[ Hits: 717 | Votes: 6 | Rating: 6.83 ]
- Array Solutions - WX0B
- Stacking and phasing HF and 6m arrays antenna switches and contesting devices. Custom low band antenna arrays, bandpass filters,commercial/Mil STd filters,microwave components, commercial broadcast filters.
[ Hits: 5433 | Votes: 10 | Rating: 6.20 ]
- Text books relating to amateur radio (HAM radio), highpass and lowpass power filters, transmitter test loads (dummy loads), study tapes and disks to learn morse code, transceiver preamplifiers, antenna signal boosters.
[ Hits: 1997 | Votes: 0 | Rating: 0.00 ]
- All kinds of antennas, RF connectors, radio transceivers and accessories like power supplies, morse keys, lowpass filters and so on.
[ Hits: 17365 | Votes: 33 | Rating: 6.12 ]
- Heros Technology Ltd
- HF Radio Preselectors,BCB filters,Low Pass filters,Band Pass filter
[ Hits: 469 | Votes: 1 | Rating: 10.00 ]
- Idiom Press
- CW keyers, Logikey, and antenna rotator controll like rotor-ez, and active audio low pass filters.
[ Hits: 2492 | Votes: 2 | Rating: 9.50 ]
- 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: 1108 | Votes: 1 | Rating: 10.00 ]
- Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.
[ Hits: 5171 | Votes: 13 | Rating: 5.46 ]
- SVC Filter
- Filter design software. A program designed to expedite the design and analysis of lowpass (and highpass) filters with nearest 5% component values.
SVCfilter is 32-bit Windows electrical filter design software nicely written to help the radio amateur, technician or engineer design and analyze lumped-element lowpass and highpass filters.
[ Hits: 1061 | Votes: 1 | Rating: 10.00 ]
- Free programmable DSP-Filter
- Free programmable LOW/HIGH/BANDPASS FIR filter in the audio range 0-4kHz
[ Hits: 28738 | Votes: 83 | Rating: 5.80 ]
- Freeware real time DSP filter particularly for applications of amateur radios , IIR, FIR filter, low-pass, high-pass, band-pass filter, band suppressor (notch filter) individually adjustable
[ Hits: 5793 | Votes: 14 | Rating: 8.14 ]
- A low cost UHF/VHF duplexer
- Duplexers for dual band radio are usually high pass filter and low pass filter combined in the same box. This circuit is a design within a cost of US$10.
[ Hits: 7674 | Votes: 13 | Rating: 5.15 ]
- Lowpass filter for 5MHz
- The following lowpass filter was built using the tables in the arrl manual, it is a 5 section one and seems to work ok
[ Hits: 185 | Votes: 2 | Rating: 4.50 ]
- 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: 5077 | Votes: 19 | Rating: 6.11 ]
- Second-Harmonic-Optimized Low-Pass Filters
- Sometimes we need a little more output filtering than traditional designs offer. Look at a new filter that can give you that extra boost. QST article by W3NQN
[ Hits: 667 | Votes: 0 | Rating: 0.00 ]
- 500 KHz Low Pass Filter
- This article describes a shielded low pass filter with a cut off frequency of about 500 KHz. It is built with components suitable for receiving, and was designed to use in front of a low frequency receiver for LOWFER work.
[ Hits: 1077 | Votes: 8 | Rating: 3.00 ]
- Hombrewing an HF Transceiver
- This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
[ Hits: 4213 | Votes: 6 | Rating: 8.33 ]
- 6m High Pass TVI filter
- Are you suffering from TVI? Then why not try this filter for size. It is a three-stage high-pass filter that blocks low-frequency 50MHz signals while letting through UHF TV.
[ Hits: 1359 | Votes: 2 | Rating: 3.00 ]
- VHF signal generator
- a simple VHF signal generator in order to measure the characteristic of low pass filter.
[ Hits: 3112 | Votes: 3 | Rating: 6.33 ]
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