Many ARRL handbooks in the past 20 or more years have included a high
pass filter designed to reject all the AM broadcast band. I built one
and it works well.
73, Jerry, K0CQ
On 10/7/2010 12:08 PM, Jim Younce wrote:
> You are experiencing overload to the detector in the Century 21 from a
> nearby BC station. I suggest you listen to the station ID and then look up
> the frequency on the internet and then install a series inductor and
> variable capacitor resonate at the offending stations frequency from the
> center conductor of the coax to ground and tune the capacitor until the
> unwanted signal is attenuated. You can connect this device by using a
> T-connector the one port to the radio, one port to the antenna and the
> remaining port connected to the series LC circuit between center conductor
> and ground.
>
> Jim K4ZM
>
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