[Boatanchors] SSB filters

[Ian Wilson]

Good morning Clive,

I would suggest rolling your own. You can pick up cheap microprocessor
crystals from
Mouser, etc. These are typically very close in frequency and have decent Q.
You can
easily measure the crystal parameters required to design a filter using a
Colpitts
oscillator, extra capacitor, switch, and frequency counter (lots of places
on the web
will give more detail).

There are lots of good freebie filter design programs out there; one I have
used with good
results on a few filters, both crystal and ceramic resonator, is from AADE:
( http://www.aade.com/filter.htm  ).

How' the WX in GW-land?

73, ian K3IMW