Some are stand-alone software you install on your PC and others run on a website (usually a companys website). Sounds like a job for some filter design software, doesnt it. Practically, youll need to build the filter with standard-value components as well, and that will affect filter performance too. There are tables and equations, but they are tedious to work with. The usual solution is to install a high-pass broadcast-reject filter at the receiver input, attenuating the unwanted AM signals below 1.6 MHz while passing the desired 160 meter signals with little attenuation. The receiver might be a wireless telephone, a scanner, or even a TV or radio receiver. It occurs when a receiving device is functioning entirely properly but unable to reject a strong signal. Elsie Filter Design How To Turn Specifications.
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