Tried it a few years ago as an experiment. Broke the antenna coax center
lead and inserted the crystal. Worked great on one frequency. Would have
been even sharper with a crystal holder capacitance balancing circuit like
communications receiver xtal filters of the early years. One heck of a
roofing filter for one frequency only. Now if someone had a switchable
crystal for every 160 meter frequency.
73
Bruce-K1FZ
> I believe there is a 1825 KHZ xtal filter sell somewhere, can any body
> share their experience about put a narrow XTAL filter in front of their
> recv ? (CW works only)
> Ir Moeh AntonHendra
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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