Re: BCI filter question.

K9HZ <bill@...>

If you search the QST archives for his call you will find two articles by him.  One for transmitting filters and one for receiving. The receiving filter document is the one you want.  These are the most common low pass/ band pass filters used by hams today.   

Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ


Owner - Operator

Big Signal Ranch – K9ZC

Staunton, Illinois


Owner – Operator

Villa Grand Piton - J68HZ

Soufriere, St. Lucia W.I.

Rent it:

email:  bill@...


On Jan 3, 2018, at 3:35 AM, ohwenzelph via Groups.Io <Ohwenzelph@...> wrote:

Jan 2   

You can build an excellent W3NQN BC filter for about $5. “

Do do you have details on how?

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