What type of filter should be connected to a TV receiver to prevent RF overload from a nearby 2 meter transmitter?

A band-reject filter, also known as a notch filter, is specifically designed to attenuate or reject signals within a certain frequency range while allowing signals outside that range to pass through. In the context of a nearby 2 meter transmitter, which operates around 144-148 MHz, the band-reject filter will target that specific frequency range and diminish its impact on the TV receiver.

This is essential for preventing RF overload, as the strong signals from the 2 meter transmitter can interfere with the reception of TV signals, leading to poor picture quality or complete signal loss. The band-reject filter will effectively allow the TV receiver to operate without interference from the unwanted 2 meter signals, while still allowing other frequencies that the TV needs for proper operation to be received.

While other filters like low-pass and high-pass filters serve to allow only lower or higher frequencies respectively, they do not specifically target the narrow frequency range that might cause interference, thus they would not be effective in mitigating the problem created by a nearby 2 meter transmitter. A band-pass filter, on the other hand, would allow a range of frequencies to pass through, which is not beneficial in this case as it would still permit the unwanted 2 meter signals.