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2401 MHz filters

Doug Braun wrote:

It's really a pity that all of these ISM filters have 2401 MHz
at the very edge of their passband.

Wayne replies:

Does that really matter if the filter is used AFTER the LNA?
So what if the filter has 2 or 3 dB of loss if it is after an LNA that has 20 dB of gain.

The important thing is that the undesired 2100 MHz image is attenuated by about 30 dB.

Wayne Estes W9AE
Mundelein, IL, USA
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