[Elecraft] Tuners and spurious responses

[Al Lorona]

 No, not a null, but a rolloff. When I quoted -40 dB I didn't mean a notch at one frequency, but the stopband level reached by the time you get well into the broadcast band. So that would be -40 dB on all AM stations below a certain frequency.
The K3 is a good receiver, but every receiver has its limits and certainly the K3 will suffer once an interfering signal gets above a certain level.
A trap or stub would work, but my point was that it would be unnecessary if using a link-coupled tuner. Attenuating a 50 kW station by 40 dB makes it  sound like a 5 W station.
Al  W6LX


   
>>> That said, is suppose it IS possible that a tuner/antenna combination 
>>> just happened to have a deep null right on the frequency of a nearby 
>>> broadcast station