![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/Collins-filter-orientation-1.jpeg?ssl=1)
How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r
![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/Yaesu-FT-817-Narrow-500-Hz-Collins-526-8693-010-Filter-1-1.jpeg?ssl=1)
How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r
![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/FT-818ND-Collins-Narrow-Filter-Artur-board-v2-4.jpeg?ssl=1)
How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r
![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/FT-818ND-Collins-Narrow-Filter-Artur-board-v2-3.jpeg?ssl=1)
How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r
![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/Yaesu-FT-817-Narrow-500-Hz-Collins-526-8693-010-Filter-11.jpeg?ssl=1)
How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r
![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/Yaesu-FT-817-Narrow-500-Hz-Collins-526-8693-010-Filter-9.jpeg?ssl=1)
How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r
![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/Inrad-SSB-filter-1.jpeg?ssl=1)
How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r
![How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r How to assemble a narrow CW filter for your Yaesu FT-817/FT-818/FT-857/FT-897 (an affordable YF-122C equivalent) | Q R P e r](https://i0.wp.com/qrper.com/wp-content/uploads/2022/09/Yaesu-FT-817-Narrow-500-Hz-Collins-526-8693-010-Filter-5.jpeg?ssl=1)