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- Newsgroups: sci.electronics
- Path: sparky!uunet!nwnexus!ole!ssc!markz
- From: markz@ssc.com (Mark Zenier)
- Subject: Re: Detecting Sine Wave freq
- Organization: SSC, Inc., Seattle, WA
- Date: Sun, 10 Jan 1993 05:23:36 GMT
- Message-ID: <1993Jan10.052336.9972@ssc.com>
- X-Newsreader: TIN [version 1.1 PL6]
- References: <1993Jan9.214241.22174@murdoch.acc.Virginia.EDU>
- Lines: 21
-
- Paul Michael Wayner (pmw2c@csissun10.ee.Virginia.EDU) wrote:
- : I'm interested in designing a circuit that will determine
- : if a sine wave frequency is in a certain range of values,
- : specifically, 45-51 MHz. It is very important that the
- : detector be as reliable a possible, so I would like to use
- : only a few active components and try to stick to RC's as
- : much a possible.
-
- (At that frequency, every wire is an inductor, whether you
- want it to be or not.)
-
- How sensitive? And is the input an antenna or a high level
- signal? A low level signal? What kind of noise or
- interference? More than one signal at a time? Fixed or
- Variable frequency? Is the output an on/off digital signal, or
- a amplitude, a blinking light, a spectrum display, etc. ...
-
- [In other words, your spec. is a little vague.]
-
- Mark Zenier markz@ssc.wa.com
-
-