On 8/25/2013 10:13 AM, gareth wrote:
"philo " wrote in message
...
Your question is rather unfocused. You have not even given details as to
the filter type...viz: chebychev filter, butterworth filter. etc.
Additionally, the BFO has nothing at all to do with filtering and
as you have seen by the answers here, only confuses the issue.
Once you have your thoughts organized feel free to post back with a
coherent question. There is no need for you to talk rudely to those who
have attempted to answer your ill-formed query.
I've been licensed since 1964 so may very well qualify as senior and
experienced. As to knowledgeable...? I'm still in the learning phase.
Now that I think of it, it appears perhaps that you have only been
attempting to be humorous. Throughout my Usenet peregrinations I view your
phraseology as being analogous to that class of inquiry oft posted during
the zeroth +1 day of April.

If you were, indeed, licensed in 1964, then it is high time that you
presented
a more mature attitude to public debate. Your comments about rudeness above
would seem to be Freudian Projection.

I have not been rude, but I have replied to those who have been rude, and
corrected those
who misunderstood the issues.


Incorrect. You have (and continue) to be rude, arrogant and, basically,
a horse's ass. And if someone misunderstood the issues, it is because
YOU did not explain yourself properly.

There is nothing lacking in my original query for those who would be
knowledgeable
about single crystals together with their phasing controls. That you muddy
the water
with talk of Tchebychev etc suggests that you are not amongst their number.


There is a tremendous amount lacking from your original query. That you
don't know how Tchebychev, Butterworth and other filter types are
pertinent to your question shows your lack of knowledge. Yet you try to
claim everyone else is ignorant - when you are asking the question.

The BFO is entirely relevant to be sat 1/2 way between the peak and the
notch so
that the audio image would be removed.

Nevertheless, thank-you for your (immature) contribution.




The BFO is not relevant to the crystal filter. The relationship between
the filter's bandpass and the BFO frequency can be relevant.

And if you still think everyone else is wrong, perhaps you need to
rewrite the physics books. I'm sure the entire world would love to be
"enlightened" by your misconceptions. I've been licensed since 1967,
(in fact my first receiver was a Hallicrafters SK-43) have studied them
in college and designed circuits around them, and I actually understand
how they work. No one here has asked a non-pertinent question - or
provided non-pertinent information.

Meanwhile, if you want help on this or any other list or forum, I highly
suggest you change your approach. The one you are using will quickly
drive people away from trying to help you.

--
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Remove the "x" from my email address
Jerry, AI0K

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