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Ham Supply LogiKit SCAF-1 – Bandpass Filter
https://www.hamsupply.com/logikit-scaf-1-noise-filter/
Unlike most DSP audio filters offered, the SCAF-1 filter passes signals through in real time, for perfect CW monitoring and QSK, and with no recovery pause on SSB when going from transmit to receive. Once you start using SCAF-1 you will never …
eHam.net
https://www.eham.net/reviews/detail/3075
The new SCAF-1 filter from Ham Supply/Idiom Press makes your radio listener friendly, whether you are an SSB or CW operator. Using a modern but little known technology called SCAF filtering, the SCAF-1 is an active audio low pass filter offering user control of the filter cut-off frequency, yielding a stunning 96dB per octave roll-off of ...
Logikit SCAF-1 - the Deceptively Simple Filter
https://qrznow.com/logikit-scaf-1-deceptively-simple-filter/
The new SCAF-1 filter from Idiom Press makes your radio listener friendly, whether you are an SSB or CW operator. Using a modern but little known technology called SCAF filtering, the SCAF-1 is an active audio low pass filter offering user control of the filter cut-off frequency, yielding a stunning 96dB per octave roll-off of signals above the ...
The Idiom Press SCAF-1 Audio Filter
https://www.hamsupply.com/wp-content/uploads/2016/07/SCAF_Review.pdf
SCAF-1 to your radio. On its homepage at <www.idiompress.com> is a link for more information on the SCAF-1. On the next page is a panel inviting you to hear it in action. Following that link brings up a menu of .WAV files demonstrating the filter’s being used during on-the-air oper-ation for both CW and SSB QSOs. With the SCAF-1, I not only ...
Ham Supply / Idiom Press SCAF-1 Bandpass Filter Modified
https://www.hamsupply.com/modified-scaf-1-noise-filter/
The audio file SCAF-1.mp3 illustrates the effect of the modified SCAF-1 filter on what I sound like at the output of my off-air monitor when I vary the cutoff frequency between 4.5 kHz and 1.5 kHz. Use Up/Down Arrow keys to increase or decrease volume. Separately, I also found the modified SCAF-1 to be very helpful in removing high frequency ...
Ham Supply / Idiom Press SCAF-1 Bandpass Filter Demonstration
https://www.hamsupply.com/scaf-1-demonstrations/
Ham Supply / Idiom Press SCAF-1 Bandpass Filter Demonstration. Logikit SCAF-1 — Hear it in action! This page links to sound files in MP3 format. ... CW Sample File 1 In this file you will hear the filter, first switched out completely, then switched in, and then the cut-off frequency control being tuned from high to low.
Simple Lowpass CW SCAF Filter - QRPGuys
https://qrpguys.com/simple-cw-scaf-filter
QRPGuys Simple Lowpass CW SCAF Filter . This product has been retired. We no longer have boards available. The QRPGuys Simple Lowpass SCAF Filter is an adjustable lowpass audio filter for cw that can be very helpful for a variety of receivers that lack the selectivity, or receive both sidebands simultaneously to narrow the audio pass band so individual cw stations can be …
GRUNDIG G6 WITH SCAF-1 CW AUDIO FILTER - YouTube
https://www.youtube.com/watch?v=eDkz9Coe-sE
A demonstration of a Switched Capacitor Audio Filter reducing background noise on a Grundig G6 shortwave receiver. Reception of amateur radio CW (Morse code...
NESCAF – QRP Club of New England
https://www.newenglandqrp.org/nescaf/
We are happy to once again make the New England Switched Capacitor Audio Filter (NESCAF) available to the QRP community. Please be aware that the NESCAF board is approximately 2″ x 2″ (5.08cm x 5.08cm). It’s all through-hole construction, i.e. not a bad build, but we recommend a soldering iron in the 20-30W range.
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